aboutsummaryrefslogtreecommitdiff
path: root/vendor
diff options
context:
space:
mode:
authorBen Burwell <ben@benburwell.com>2018-05-25 00:01:10 -0400
committerBen Burwell <ben@benburwell.com>2018-05-25 00:01:10 -0400
commit483b758f27e212c0684cdb6ca065c56765818e26 (patch)
tree25b88300acbfd51191413eba1239af400d883400 /vendor
parentd6b0483feb598a0c69c0d17a754545a9355e500c (diff)
Run dep init
Diffstat (limited to 'vendor')
-rw-r--r--vendor/github.com/BurntSushi/xdg/COPYING19
-rw-r--r--vendor/github.com/BurntSushi/xdg/README9
-rw-r--r--vendor/github.com/BurntSushi/xdg/xdg.go236
-rw-r--r--vendor/github.com/benburwell/gohue/.gitignore1
-rw-r--r--vendor/github.com/benburwell/gohue/LICENSE340
-rw-r--r--vendor/github.com/benburwell/gohue/README.md129
-rw-r--r--vendor/github.com/benburwell/gohue/bridge.go342
-rw-r--r--vendor/github.com/benburwell/gohue/group.go67
-rw-r--r--vendor/github.com/benburwell/gohue/light.go266
-rw-r--r--vendor/github.com/benburwell/gohue/scene.go129
-rw-r--r--vendor/github.com/benburwell/gohue/schedule.go109
-rw-r--r--vendor/github.com/cpucycle/astrotime/README.md44
-rwxr-xr-xvendor/github.com/cpucycle/astrotime/astrotime.go405
-rw-r--r--vendor/gopkg.in/yaml.v2/.travis.yml12
-rw-r--r--vendor/gopkg.in/yaml.v2/LICENSE201
-rw-r--r--vendor/gopkg.in/yaml.v2/LICENSE.libyaml31
-rw-r--r--vendor/gopkg.in/yaml.v2/NOTICE13
-rw-r--r--vendor/gopkg.in/yaml.v2/README.md133
-rw-r--r--vendor/gopkg.in/yaml.v2/apic.go739
-rw-r--r--vendor/gopkg.in/yaml.v2/decode.go775
-rw-r--r--vendor/gopkg.in/yaml.v2/emitterc.go1685
-rw-r--r--vendor/gopkg.in/yaml.v2/encode.go362
-rw-r--r--vendor/gopkg.in/yaml.v2/go.mod5
-rw-r--r--vendor/gopkg.in/yaml.v2/parserc.go1095
-rw-r--r--vendor/gopkg.in/yaml.v2/readerc.go412
-rw-r--r--vendor/gopkg.in/yaml.v2/resolve.go258
-rw-r--r--vendor/gopkg.in/yaml.v2/scannerc.go2696
-rw-r--r--vendor/gopkg.in/yaml.v2/sorter.go113
-rw-r--r--vendor/gopkg.in/yaml.v2/writerc.go26
-rw-r--r--vendor/gopkg.in/yaml.v2/yaml.go466
-rw-r--r--vendor/gopkg.in/yaml.v2/yamlh.go738
-rw-r--r--vendor/gopkg.in/yaml.v2/yamlprivateh.go173
32 files changed, 12029 insertions, 0 deletions
diff --git a/vendor/github.com/BurntSushi/xdg/COPYING b/vendor/github.com/BurntSushi/xdg/COPYING
new file mode 100644
index 0000000..b570b82
--- /dev/null
+++ b/vendor/github.com/BurntSushi/xdg/COPYING
@@ -0,0 +1,19 @@
+ DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
+ Version 2, December 2004
+
+ Copyright (C) 2004 Sam Hocevar <sam@hocevar.net>
+
+ Everyone is permitted to copy and distribute verbatim or modified
+ copies of this license document, and changing it is allowed as long
+ as the name is changed.
+
+ DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
+ TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+ 0. You just DO WHAT THE FUCK YOU WANT TO.
+
+This program is free software. It comes without any warranty, to
+the extent permitted by applicable law. You can redistribute it
+and/or modify it under the terms of the Do What The Fuck You Want
+To Public License, Version 2, as published by Sam Hocevar. See
+http://sam.zoy.org/wtfpl/COPYING for more details.
diff --git a/vendor/github.com/BurntSushi/xdg/README b/vendor/github.com/BurntSushi/xdg/README
new file mode 100644
index 0000000..0dffd6c
--- /dev/null
+++ b/vendor/github.com/BurntSushi/xdg/README
@@ -0,0 +1,9 @@
+Provides convenience functions for reading configuration and data files
+according to the XDG Base Directory Specification:
+
+http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html
+
+Install with
+
+ go get github.com/BurntSushi/xdg
+
diff --git a/vendor/github.com/BurntSushi/xdg/xdg.go b/vendor/github.com/BurntSushi/xdg/xdg.go
new file mode 100644
index 0000000..fddceb9
--- /dev/null
+++ b/vendor/github.com/BurntSushi/xdg/xdg.go
@@ -0,0 +1,236 @@
+package xdg
+
+import (
+ "fmt"
+ "go/build"
+ "io/ioutil"
+ "os"
+ "path"
+ "strings"
+)
+
+// Paths determines which directories to search. The first directory
+// containing a matching file is used. Here is the order:
+//
+// Override is always checked first.
+//
+// Directories specified in the XDG spec are searched after "XDGSuffix" is
+// appended.
+//
+// For configuration files, these are:
+//
+// $XDG_CONFIG_HOME (or $HOME/.config when not set)
+// Directories in $XDG_CONFIG_DIRS (or /etc/xdg when not set)
+//
+// For data files, these are:
+//
+// $XDG_DATA_HOME (or $HOME/.local/share when not set)
+// Directories in $XDG_DATA_DIRS (or /usr/local/share:/usr/share when not set)
+//
+// For runtime files, these are:
+//
+// $XDG_RUNTIME_DIR (or /tmp when not set; implementation defined)
+//
+// Finally, the directory specified by GoImportPath is searched in all
+// source directories reported by the `go/build` package.
+type Paths struct {
+ // When non-empty, this will be the first directory searched.
+ Override string
+
+ // The suffix path appended to XDG directories.
+ // i.e., "wingo" and NOT "/home/andrew/.config/wingo"
+ XDGSuffix string
+
+ // The path in which your data files live inside your project directory.
+ // This should include your Go import path plus the directory containing
+ // files in your repo. This is used as a last resort to find files.
+ // (And it will only work if your package was installed using the GOPATH
+ // environment.)
+ //
+ // N.B. XDGSuffix is not used here,
+ // i.e., "github.com/BurntSushi/wingo/config"
+ GoImportPath string
+}
+
+// MustPanic takes the return values of ConfigFile or DataFile, reads the file
+// into a []byte, and returns the bytes.
+//
+// If the operation does not succeed, it panics.
+func (ps Paths) MustPanic(fpath string, err error) []byte {
+ if err != nil {
+ panic(err)
+ }
+ bs, err := ioutil.ReadFile(fpath)
+ if err != nil {
+ panic(err)
+ }
+ return bs
+}
+
+// MustError is like MustPanic, but instead of panicing when something goes
+// wrong, it prints the error to stderr and calls os.Exit(1).
+func (ps Paths) MustError(fpath string, err error) []byte {
+ if err != nil {
+ fmt.Fprintf(os.Stderr, "Could not read %s: %s", fpath, err)
+ os.Exit(1)
+ }
+ bs, err := ioutil.ReadFile(fpath)
+ if err != nil {
+ fmt.Fprintf(os.Stderr, "Could not read %s: %s", fpath, err)
+ os.Exit(1)
+ }
+ return bs
+}
+
+// ConfigFile returns a file path containing the configuration file
+// specified. If one cannot be found, an error will be returned which
+// contains a list of all file paths searched.
+func (ps Paths) ConfigFile(name string) (string, error) {
+ home := os.Getenv("HOME")
+ xdgHome := os.Getenv("XDG_CONFIG_HOME")
+ xdgDirs := os.Getenv("XDG_CONFIG_DIRS")
+
+ // We're going to accumulate a list of directories for places to inspect
+ // for configuration files. Basically, this includes following the
+ // xdg basedir spec for the XDG_CONFIG_HOME and XDG_CONFIG_DIRS environment
+ // variables.
+ try := make([]string, 0)
+
+ // from override
+ if len(ps.Override) > 0 {
+ try = append(try, ps.Override)
+ }
+
+ // XDG_CONFIG_HOME
+ if len(xdgHome) > 0 && strings.HasPrefix(xdgHome, "/") {
+ try = append(try, path.Join(xdgHome, ps.XDGSuffix))
+ } else if len(home) > 0 {
+ try = append(try, path.Join(home, ".config", ps.XDGSuffix))
+ }
+
+ // XDG_CONFIG_DIRS
+ if len(xdgDirs) > 0 {
+ for _, p := range strings.Split(xdgDirs, ":") {
+ // XDG basedir spec does not allow relative paths
+ if !strings.HasPrefix(p, "/") {
+ continue
+ }
+ try = append(try, path.Join(p, ps.XDGSuffix))
+ }
+ } else {
+ try = append(try, path.Join("/", "etc", "xdg", ps.XDGSuffix))
+ }
+
+ // Add directories from GOPATH. Last resort.
+ for _, dir := range build.Default.SrcDirs() {
+ d := path.Join(dir, ps.GoImportPath)
+ try = append(try, d)
+ }
+
+ return searchPaths(try, name)
+}
+
+// DataFile returns a file path containing the data file
+// specified. If one cannot be found, an error will be returned which
+// contains a list of all file paths searched.
+func (ps Paths) DataFile(name string) (string, error) {
+ home := os.Getenv("HOME")
+ xdgHome := os.Getenv("XDG_DATA_HOME")
+ xdgDirs := os.Getenv("XDG_DATA_DIRS")
+
+ // We're going to accumulate a list of directories for places to inspect
+ // for data files. Basically, this includes following the
+ // xdg basedir spec for the XDG_DATA_HOME and XDG_DATA_DIRS environment
+ // variables.
+ try := make([]string, 0)
+
+ // from override
+ if len(ps.Override) > 0 {
+ try = append(try, ps.Override)
+ }
+
+ // XDG_DATA_HOME
+ if len(xdgHome) > 0 && strings.HasPrefix(xdgHome, "/") {
+ try = append(try, path.Join(xdgHome, ps.XDGSuffix))
+ } else if len(home) > 0 {
+ try = append(try, path.Join(home, ".local", "share", ps.XDGSuffix))
+ }
+
+ // XDG_CONFIG_DIRS
+ if len(xdgDirs) > 0 {
+ for _, p := range strings.Split(xdgDirs, ":") {
+ // XDG basedir spec does not allow relative paths
+ if !strings.HasPrefix(p, "/") {
+ continue
+ }
+ try = append(try, path.Join(p, ps.XDGSuffix))
+ }
+ } else {
+ try = append(try, path.Join("/", "usr", "local", "share", ps.XDGSuffix))
+ try = append(try, path.Join("/", "usr", "share", ps.XDGSuffix))
+ }
+
+ // Add directories from GOPATH. Last resort.
+ for _, dir := range build.Default.SrcDirs() {
+ d := path.Join(dir, ps.GoImportPath)
+ try = append(try, d)
+ }
+
+ return searchPaths(try, name)
+}
+
+// RuntimeFile returns a file path containing the runtime file
+// specified. If one cannot be found, an error will be returned which
+// contains a list of all file paths searched.
+func (ps Paths) RuntimeFile(name string) (string, error) {
+ xdgRuntime := os.Getenv("XDG_RUNTIME_DIR")
+
+ try := make([]string, 0)
+
+ // from override
+ if len(ps.Override) > 0 {
+ try = append(try, ps.Override)
+ }
+
+ // XDG_RUNTIME_DIR
+ if len(xdgRuntime) > 0 {
+ try = append(try, path.Join(xdgRuntime, ps.XDGSuffix))
+ } else {
+ try = append(try, path.Join(os.TempDir(), ps.XDGSuffix))
+ }
+
+ // Add directories from GOPATH. Last resort.
+ for _, dir := range build.Default.SrcDirs() {
+ d := path.Join(dir, ps.GoImportPath)
+ try = append(try, d)
+ }
+
+ return searchPaths(try, name)
+}
+
+func searchPaths(paths []string, suffix string) (string, error) {
+ // Now use the first one and keep track of the ones we've tried.
+ tried := make([]string, 0, len(paths))
+ for _, dir := range paths {
+ if len(dir) == 0 {
+ continue
+ }
+
+ fpath := path.Join(dir, suffix)
+ if exists(fpath) {
+ return fpath, nil
+ } else {
+ tried = append(tried, fpath)
+ }
+ }
+
+ // Show the user where we've looked for config files...
+ triedStr := strings.Join(tried, ", ")
+ return "", fmt.Errorf("Could not find a '%s' file. Tried "+
+ "the following paths: %s", suffix, triedStr)
+}
+
+func exists(p string) bool {
+ _, err := os.Stat(p)
+ return err == nil || os.IsExist(err)
+}
diff --git a/vendor/github.com/benburwell/gohue/.gitignore b/vendor/github.com/benburwell/gohue/.gitignore
new file mode 100644
index 0000000..1377554
--- /dev/null
+++ b/vendor/github.com/benburwell/gohue/.gitignore
@@ -0,0 +1 @@
+*.swp
diff --git a/vendor/github.com/benburwell/gohue/LICENSE b/vendor/github.com/benburwell/gohue/LICENSE
new file mode 100644
index 0000000..798f51c
--- /dev/null
+++ b/vendor/github.com/benburwell/gohue/LICENSE
@@ -0,0 +1,340 @@
+ GNU GENERAL PUBLIC LICENSE
+ Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc., <http://fsf.org/>
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
+
+ The licenses for most software are designed to take away your
+freedom to share and change it. By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users. This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it. (Some other Free Software Foundation software is covered by
+the GNU Lesser General Public License instead.) You can apply it to
+your programs, too.
+
+ When we speak of free software, we are referring to freedom, not
+price. Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+ To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
+ For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must give the recipients all the rights that
+you have. You must make sure that they, too, receive or can get the
+source code. And you must show them these terms so they know their
+rights.
+
+ We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+ Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
+software. If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
+that any problems introduced by others will not reflect on the original
+authors' reputations.
+
+ Finally, any free program is threatened constantly by software
+patents. We wish to avoid the danger that redistributors of a free
+program will individually obtain patent licenses, in effect making the
+program proprietary. To prevent this, we have made it clear that any
+patent must be licensed for everyone's free use or not licensed at all.
+
+ The precise terms and conditions for copying, distribution and
+modification follow.
+
+ GNU GENERAL PUBLIC LICENSE
+ TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+ 0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
+under the terms of this General Public License. The "Program", below,
+refers to any such program or work, and a "work based on the Program"
+means either the Program or any derivative work under copyright law:
+that is to say, a work containing the Program or a portion of it,
+either verbatim or with modifications and/or translated into another
+language. (Hereinafter, translation is included without limitation in
+the term "modification".) Each licensee is addressed as "you".
+
+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope. The act of
+running the Program is not restricted, and the output from the Program
+is covered only if its contents constitute a work based on the
+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
+
+ 1. You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
+conspicuously and appropriately publish on each copy an appropriate
+copyright notice and disclaimer of warranty; keep intact all the
+notices that refer to this License and to the absence of any warranty;
+and give any other recipients of the Program a copy of this License
+along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
+
+ 2. You may modify your copy or copies of the Program or any portion
+of it, thus forming a work based on the Program, and copy and
+distribute such modifications or work under the terms of Section 1
+above, provided that you also meet all of these conditions:
+
+ a) You must cause the modified files to carry prominent notices
+ stating that you changed the files and the date of any change.
+
+ b) You must cause any work that you distribute or publish, that in
+ whole or in part contains or is derived from the Program or any
+ part thereof, to be licensed as a whole at no charge to all third
+ parties under the terms of this License.
+
+ c) If the modified program normally reads commands interactively
+ when run, you must cause it, when started running for such
+ interactive use in the most ordinary way, to print or display an
+ announcement including an appropriate copyright notice and a
+ notice that there is no warranty (or else, saying that you provide
+ a warranty) and that users may redistribute the program under
+ these conditions, and telling the user how to view a copy of this
+ License. (Exception: if the Program itself is interactive but
+ does not normally print such an announcement, your work based on
+ the Program is not required to print an announcement.)
+
+These requirements apply to the modified work as a whole. If
+identifiable sections of that work are not derived from the Program,
+and can be reasonably considered independent and separate works in
+themselves, then this License, and its terms, do not apply to those
+sections when you distribute them as separate works. But when you
+distribute the same sections as part of a whole which is a work based
+on the Program, the distribution of the whole must be on the terms of
+this License, whose permissions for other licensees extend to the
+entire whole, and thus to each and every part regardless of who wrote it.
+
+Thus, it is not the intent of this section to claim rights or contest
+your rights to work written entirely by you; rather, the intent is to
+exercise the right to control the distribution of derivative or
+collective works based on the Program.
+
+In addition, mere aggregation of another work not based on the Program
+with the Program (or with a work based on the Program) on a volume of
+a storage or distribution medium does not bring the other work under
+the scope of this License.
+
+ 3. You may copy and distribute the Program (or a work based on it,
+under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you also do one of the following:
+
+ a) Accompany it with the complete corresponding machine-readable
+ source code, which must be distributed under the terms of Sections
+ 1 and 2 above on a medium customarily used for software interchange; or,
+
+ b) Accompany it with a written offer, valid for at least three
+ years, to give any third party, for a charge no more than your
+ cost of physically performing source distribution, a complete
+ machine-readable copy of the corresponding source code, to be
+ distributed under the terms of Sections 1 and 2 above on a medium
+ customarily used for software interchange; or,
+
+ c) Accompany it with the information you received as to the offer
+ to distribute corresponding source code. (This alternative is
+ allowed only for noncommercial distribution and only if you
+ received the program in object code or executable form with such
+ an offer, in accord with Subsection b above.)
+
+The source code for a work means the preferred form of the work for
+making modifications to it. For an executable work, complete source
+code means all the source code for all modules it contains, plus any
+associated interface definition files, plus the scripts used to
+control compilation and installation of the executable. However, as a
+special exception, the source code distributed need not include
+anything that is normally distributed (in either source or binary
+form) with the major components (compiler, kernel, and so on) of the
+operating system on which the executable runs, unless that component
+itself accompanies the executable.
+
+If distribution of executable or object code is made by offering
+access to copy from a designated place, then offering equivalent
+access to copy the source code from the same place counts as
+distribution of the source code, even though third parties are not
+compelled to copy the source along with the object code.
+
+ 4. You may not copy, modify, sublicense, or distribute the Program
+except as expressly provided under this License. Any attempt
+otherwise to copy, modify, sublicense or distribute the Program is
+void, and will automatically terminate your rights under this License.
+However, parties who have received copies, or rights, from you under
+this License will not have their licenses terminated so long as such
+parties remain in full compliance.
+
+ 5. You are not required to accept this License, since you have not
+signed it. However, nothing else grants you permission to modify or
+distribute the Program or its derivative works. These actions are
+prohibited by law if you do not accept this License. Therefore, by
+modifying or distributing the Program (or any work based on the
+Program), you indicate your acceptance of this License to do so, and
+all its terms and conditions for copying, distributing or modifying
+the Program or works based on it.
+
+ 6. Each time you redistribute the Program (or any work based on the
+Program), the recipient automatically receives a license from the
+original licensor to copy, distribute or modify the Program subject to
+these terms and conditions. You may not impose any further
+restrictions on the recipients' exercise of the rights granted herein.
+You are not responsible for enforcing compliance by third parties to
+this License.
+
+ 7. If, as a consequence of a court judgment or allegation of patent
+infringement or for any other reason (not limited to patent issues),
+conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License. If you cannot
+distribute so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you
+may not distribute the Program at all. For example, if a patent
+license would not permit royalty-free redistribution of the Program by
+all those who receive copies directly or indirectly through you, then
+the only way you could satisfy both it and this License would be to
+refrain entirely from distribution of the Program.
+
+If any portion of this section is held invalid or unenforceable under
+any particular circumstance, the balance of the section is intended to
+apply and the section as a whole is intended to apply in other
+circumstances.
+
+It is not the purpose of this section to induce you to infringe any
+patents or other property right claims or to contest validity of any
+such claims; this section has the sole purpose of protecting the
+integrity of the free software distribution system, which is
+implemented by public license practices. Many people have made
+generous contributions to the wide range of software distributed
+through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing
+to distribute software through any other system and a licensee cannot
+impose that choice.
+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+
+ 8. If the distribution and/or use of the Program is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Program under this License
+may add an explicit geographical distribution limitation excluding
+those countries, so that distribution is permitted only in or among
+countries not thus excluded. In such case, this License incorporates
+the limitation as if written in the body of this License.
+
+ 9. The Free Software Foundation may publish revised and/or new versions
+of the General Public License from time to time. Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+Each version is given a distinguishing version number. If the Program
+specifies a version number of this License which applies to it and "any
+later version", you have the option of following the terms and conditions
+either of that version or of any later version published by the Free
+Software Foundation. If the Program does not specify a version number of
+this License, you may choose any version ever published by the Free Software
+Foundation.
+
+ 10. If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
+to ask for permission. For software which is copyrighted by the Free
+Software Foundation, write to the Free Software Foundation; we sometimes
+make exceptions for this. Our decision will be guided by the two goals
+of preserving the free status of all derivatives of our free software and
+of promoting the sharing and reuse of software generally.
+
+ NO WARRANTY
+
+ 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
+PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
+OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
+TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
+PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
+REPAIR OR CORRECTION.
+
+ 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
+OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
+TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+ GoHue
+ A library written in the Go Programming Language for the Philips Hue API.
+ Copyright (C) 2016 Collin Guarino (Collinux)
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+ Gnomovision version 69, Copyright (C) year name of author
+ Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary. Here is a sample; alter the names:
+
+ Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+ `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+ {signature of Ty Coon}, 1 April 1989
+ Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs. If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.
diff --git a/vendor/github.com/benburwell/gohue/README.md b/vendor/github.com/benburwell/gohue/README.md
new file mode 100644
index 0000000..06b9bbd
--- /dev/null
+++ b/vendor/github.com/benburwell/gohue/README.md
@@ -0,0 +1,129 @@
+# GoHue
+Package hue interfaces Philips Hue devices to control lights, scenes, schedules, and groups.
+
+[![GoDoc](https://camo.githubusercontent.com/b3b2a2b7fad4e76052830945cd839a3bba5be723/687474703a2f2f696d672e736869656c64732e696f2f62616467652f676f646f632d7265666572656e63652d3532373242342e706e67)](https://godoc.org/github.com/Collinux/GoHue)
+[![Go Report Card](https://goreportcard.com/badge/github.com/Collinux/GoHue)](https://goreportcard.com/report/github.com/Collinux/GoHue)
+
+## See GoHue in action!
+##### Have a cool project you made using GoHue? Add yours here in a pull request!
+[HueBeat](https://github.com/Mobilpadde/HueBeat) by [Mobilpadde](https://github.com/mobilpadde) - Light up a room in sync with your heartbeat.
+
+[BitHue](https://github.com/realytcracker/go-bithue) by [ytcracker](https://github.com/realytcracker) - Light color according to profit gain/loss in bitcoin price
+
+## Installation
+```
+go get github.com/collinux/GoHue
+```
+
+## Usage
+```
+package main
+
+import (
+ "github.com/collinux/GoHue"
+)
+
+func main() {
+ // It is recommended that you save the username from bridge.CreateUser
+ // so you don't have to press the link button every time and re-auth.
+ // When CreateUser is called it will print the generated user token.
+ bridgesOnNetwork, _ := hue.FindBridges()
+ bridge := bridgesOnNetwork[0]
+ username, _ := bridge.CreateUser("someusernamehere")
+ bridge.Login(username)
+
+ lights, _ := bridge.GetAllLights()
+ for _, light := range lights {
+ light.SetBrightness(100)
+ light.ColorLoop(true)
+ }
+
+ nightstandLight, _ := bridge.GetLightByName("Nightstand")
+ nightstandLight.Blink(5)
+ nightstandLight.SetName("Bedroom Lamp")
+
+ lights[0].SetColor(hue.RED)
+ lights[1].SetColor(hue.BLUE)
+ lights[2].SetColor(hue.GREEN)
+
+ for _, light := range lights {
+ light.Off()
+ }
+}
+```
+
+## Features
+##### Lights
+- [x] Get all lights
+- [x] Get light by name
+- [x] Get light by index on bridge
+- [x] Get lights attributes and state
+- [x] Set lights attributes (rename)
+- [x] Set light state (color, effects, brightness, etc)
+- [x] Delete light
+- [x] Turn On, Off, Toggle
+- [x] Blink
+- [x] Colorloop On/Off
+
+##### Bridge
+- [x] Create user
+- [x] Delete user
+- [x] Get configuration
+- [ ] Modify configuration
+- [ ] Get full state (datastore)
+- [x] Search for bridges
+- [x] Search for new lights
+- [ ] Get all timezones
+
+##### Schedules
+- [x] Get all schedules
+- [x] Get schedule by ID
+- [x] Get schedule attributes
+- [ ] Create schedules
+- [ ] Set schedule attributes
+- [ ] Delete schedule
+
+##### Scenes
+- [x] Get all scenes
+- [x] Get scene by ID
+- [x] Create scene
+- [ ] Modify scene
+- [ ] Recall scene
+- [ ] Delete scene
+
+##### Groups
+- [ ] Get all groups
+- [ ] Create group
+- [ ] Get group attributes
+- [ ] Set group attributes
+- [ ] Set group state
+- [ ] Delete Group
+
+##### Sensors
+- [ ] Get all sensors
+- [ ] Create sensor
+- [ ] Find new sensors
+- [ ] Get new sensors
+- [ ] Get sensor
+- [ ] Update sensor
+- [ ] Delete sensor
+- [ ] Change sensor configuration
+
+##### Rules
+- [ ] Get all rules
+- [ ] Get rule
+- [ ] Create rule
+- [ ] Update rule
+- [ ] Delete rule
+
+## API Documentation
+This repository is featured on the Philips Hue® developer site and was not developed by "Philips Lighting Holding B.V"...
+for official Hue® documentation check out the [Philips Hue® website](http://www.developers.meethue.com/philips-hue-api). This codebase comes with no guaranetees. Use at your own risk.
+
+## License
+GoHue - Third party golang library for Philips Hue® gateway interface.
+Copyright (C) 2016 Collinux
+GPL version 2 or higher http://www.gnu.org/licenses/gpl.html
+
+## Contributing
+Pull requests happily accepted on GitHub
diff --git a/vendor/github.com/benburwell/gohue/bridge.go b/vendor/github.com/benburwell/gohue/bridge.go
new file mode 100644
index 0000000..c89d5f4
--- /dev/null
+++ b/vendor/github.com/benburwell/gohue/bridge.go
@@ -0,0 +1,342 @@
+/*
+* bridge.go
+* GoHue library for Philips Hue
+* Copyright (C) 2016 Collin Guarino (Collinux) collin.guarino@gmail.com
+* License: GPL version 2 or higher http://www.gnu.org/licenses/gpl.html
+ */
+// All things start with the bridge. You will find many Bridge.Func() items
+// to use once a bridge has been created and identified.
+// See the getting started guide on the Philips hue website:
+// http://www.developers.meethue.com/documentation/getting-started
+
+package hue
+
+import (
+ "bytes"
+ "encoding/json"
+ "encoding/xml"
+ "errors"
+ "fmt"
+ "io"
+ "io/ioutil"
+ "log"
+ "net/http"
+ "runtime"
+ "strconv"
+ "strings"
+ "time"
+)
+
+// Bridge struct defines hardware that is used to communicate with the lights.
+type Bridge struct {
+ IPAddress string `json:"internalipaddress"`
+ Username string
+ Info BridgeInfo
+}
+
+// BridgeInfo struct is the format for parsing xml from a bridge.
+type BridgeInfo struct {
+ XMLName xml.Name `xml:"root"`
+ Device struct {
+ XMLName xml.Name `xml:"device"`
+ DeviceType string `xml:"deviceType"`
+ FriendlyName string `xml:"friendlyName"`
+ Manufacturer string `xml:"manufacturer"`
+ ManufacturerURL string `xml:"manufacturerURL"`
+ ModelDescription string `xml:"modelDescription"`
+ ModelName string `xml:"modelName"`
+ ModelNumber string `xml:"modelNumber"`
+ ModelURL string `xml:"modelURL"`
+ SerialNumber string `xml:"serialNumber"`
+ UDN string `xml:"UDN"`
+ } `xml:"device"`
+}
+
+// Get sends an http GET to the bridge
+func (bridge *Bridge) Get(path string) ([]byte, io.Reader, error) {
+ uri := fmt.Sprintf("http://" + bridge.IPAddress + path)
+ client := &http.Client{Timeout: time.Second * 5}
+ resp, err := client.Get(uri)
+
+ if err != nil {
+ err = errors.New("unable to access bridge")
+ return []byte{}, nil, err
+ }
+ return HandleResponse(resp)
+}
+
+// Put sends an http PUT to the bridge with
+// a body formatted with parameters (in a generic interface)
+func (bridge *Bridge) Put(path string, params interface{}) ([]byte, io.Reader, error) {
+ uri := fmt.Sprintf("http://" + bridge.IPAddress + path)
+ client := &http.Client{Timeout: time.Second * 5}
+
+ data, err := json.Marshal(params)
+ if err != nil {
+ err = errors.New("unable to marshal PUT request interface")
+ return []byte{}, nil, err
+ }
+ //fmt.Println("\n\nPARAMS: ", params)
+
+ request, _ := http.NewRequest("PUT", uri, bytes.NewReader(data))
+ resp, err := client.Do(request)
+ if err != nil {
+ err = errors.New("unable to access bridge")
+ return []byte{}, nil, err
+ }
+ return HandleResponse(resp)
+}
+
+// Post sends an http POST to the bridge with
+// a body formatted with parameters (in a generic interface).
+// If `params` is nil then it will send an empty body with the post request.
+func (bridge *Bridge) Post(path string, params interface{}) ([]byte, io.Reader, error) {
+ // Add the params to the request or allow an empty body
+ request := []byte{}
+ if params != nil {
+ reqBody, err := json.Marshal(params)
+ if err != nil {
+ err = errors.New("unable to add POST body parameters due to json marshalling error")
+ return []byte{}, nil, err
+ }
+ request = reqBody
+ }
+ // Send the request and handle the response
+ uri := fmt.Sprintf("http://" + bridge.IPAddress + path)
+ client := &http.Client{Timeout: time.Second * 5}
+ resp, err := client.Post(uri, "text/json", bytes.NewReader(request))
+
+ if err != nil {
+ err = errors.New("unable to access bridge")
+ return []byte{}, nil, err
+ }
+ return HandleResponse(resp)
+}
+
+// Delete sends an http DELETE to the bridge
+func (bridge *Bridge) Delete(path string) error {
+ uri := fmt.Sprintf("http://" + bridge.IPAddress + path)
+ client := &http.Client{Timeout: time.Second * 5}
+ req, _ := http.NewRequest("DELETE", uri, nil)
+ resp, err := client.Do(req)
+
+ if err != nil {
+ err = errors.New("unable to access bridge")
+ return err
+ }
+ _, _, err = HandleResponse(resp)
+ return err
+}
+
+// HandleResponse manages the http.Response content from a
+// bridge Get/Put/Post/Delete by checking it for errors
+// and invalid return types.
+func HandleResponse(resp *http.Response) ([]byte, io.Reader, error) {
+ body, err := ioutil.ReadAll(resp.Body)
+ defer resp.Body.Close()
+ if err != nil {
+ trace("Error parsing bridge description xml.", nil)
+ return []byte{}, nil, err
+ }
+ reader := bytes.NewReader(body)
+ if strings.Contains(string(body), "\"error\"") {
+ errString := string(body)
+ errNum := errString[strings.Index(errString, "type\":")+6 : strings.Index(errString, ",\"address")]
+ errDesc := errString[strings.Index(errString, "description\":\"")+14 : strings.Index(errString, "\"}}")]
+ errOut := fmt.Sprintf("Error type %s: %s.", errNum, errDesc)
+ err = errors.New(errOut)
+ return []byte{}, nil, err
+ }
+ return body, reader, nil
+}
+
+// FindBridges will visit www.meethue.com/api/nupnp to see a list of
+// bridges on the local network.
+func FindBridges() ([]Bridge, error) {
+ bridge := Bridge{IPAddress: "www.meethue.com"}
+ body, _, err := bridge.Get("/api/nupnp")
+ if err != nil {
+ err = errors.New("unable to locate bridge")
+ return []Bridge{}, err
+ }
+ bridges := []Bridge{}
+ err = json.Unmarshal(body, &bridges)
+ if err != nil {
+ return []Bridge{}, errors.New("unable to parse FindBridges response")
+ }
+ return bridges, nil
+}
+
+// NewBridge defines hardware that is compatible with Hue.
+// The function is the core of all functionality, it's necessary
+// to call `NewBridge` and `Login` or `CreateUser` to access any
+// lights, scenes, groups, etc.
+func NewBridge(ip string) (*Bridge, error) {
+ bridge := Bridge{
+ IPAddress: ip,
+ }
+ // Test the connection by attempting to get the bridge info.
+ err := bridge.GetInfo()
+ if err != nil {
+ return &Bridge{}, err
+ }
+ return &bridge, nil
+}
+
+// GetInfo retreives the description.xml file from the bridge.
+// This is used as a check to see if the bridge is accessible
+// and any error will be fatal as the bridge is required for nearly
+// all functions.
+func (bridge *Bridge) GetInfo() error {
+ _, reader, err := bridge.Get("/description.xml")
+ if err != nil {
+ return err
+ }
+ data := BridgeInfo{}
+ err = xml.NewDecoder(reader).Decode(&data)
+ if err != nil {
+ err = errors.New("Error: Unable to decode XML response from bridge. ")
+ return err
+ }
+ bridge.Info = data
+ return nil
+}
+
+// Login verifies that the username token has bridge access
+// and only assigns the bridge its Username value if verification is successful.
+func (bridge *Bridge) Login(username string) error {
+ uri := fmt.Sprintf("/api/%s", username)
+ _, _, err := bridge.Get(uri)
+ if err != nil {
+ return err
+ }
+ bridge.Username = username
+ return nil
+}
+
+// CreateUser adds a new user token on the whitelist.
+// The token is the first return value in this function which must
+// be used with `Bridge.Login`. You cannot use a plaintext username
+// like the argument provided in this function.
+// This was done by Philips Hue for security reasons.
+func (bridge *Bridge) CreateUser(deviceType string) (string, error) {
+ params := map[string]string{"devicetype": deviceType}
+ body, _, err := bridge.Post("/api", params)
+ if err != nil {
+ return "", err
+ }
+ content := string(body)
+ username := content[strings.LastIndex(content, ":\"")+2 : strings.LastIndex(content, "\"")]
+ bridge.Username = username
+ return username, nil
+}
+
+// DeleteUser deletes a user given its USER KEY, not the string name.
+// See http://www.developers.meethue.com/documentation/configuration-api
+// for description on `username` deprecation in place of the devicetype key.
+func (bridge *Bridge) DeleteUser(username string) error {
+ uri := fmt.Sprintf("/api/%s/config/whitelist/%s", bridge.Username, username)
+ err := bridge.Delete(uri)
+ if err != nil {
+ return err
+ }
+ return nil
+}
+
+// GetAllLights retreives the state of all lights that the bridge is aware of.
+func (bridge *Bridge) GetAllLights() ([]Light, error) {
+ uri := fmt.Sprintf("/api/%s/lights", bridge.Username)
+ body, _, err := bridge.Get(uri)
+ if err != nil {
+ return []Light{}, err
+ }
+
+ // An index is at the top of every Light in the array
+ lightMap := map[string]Light{}
+ err = json.Unmarshal(body, &lightMap)
+ if err != nil {
+ return []Light{}, errors.New("Unable to marshal GetAllLights response. ")
+ }
+
+ // Parse the index, add the light to the list, and return the array
+ lights := []Light{}
+ for index, light := range lightMap {
+ light.Index, err = strconv.Atoi(index)
+ if err != nil {
+ return []Light{}, errors.New("Unable to convert light index to integer. ")
+ }
+ light.Bridge = bridge
+ lights = append(lights, light)
+ }
+ return lights, nil
+}
+
+// GetLightByIndex returns a light struct containing data on
+// a light given its index stored on the bridge. This is used for
+// quickly updating an individual light.
+func (bridge *Bridge) GetLightByIndex(index int) (Light, error) {
+ // Send an http GET and inspect the response
+ uri := fmt.Sprintf("/api/%s/lights/%d", bridge.Username, index)
+ body, _, err := bridge.Get(uri)
+ if err != nil {
+ return Light{}, err
+ }
+ if strings.Contains(string(body), "not available") {
+ return Light{}, errors.New("Error: Light selection index out of bounds. ")
+ }
+
+ // Parse and load the response into the light array
+ light := Light{}
+ err = json.Unmarshal(body, &light)
+ if err != nil {
+ return Light{}, errors.New("Error: Unable to unmarshal light data. ")
+ }
+ light.Index = index
+ light.Bridge = bridge
+ return light, nil
+}
+
+// FindNewLights makes the bridge search the zigbee spectrum for
+// lights in the area and will add them to the list of lights available.
+// If successful these new lights can be used by `Bridge.GetAllLights`
+//
+// Notes from Philips Hue API documentation:
+// The bridge will search for 1 minute and will add a maximum of 15 new
+// lights. To add further lights, the command needs to be sent again after
+// the search has completed. If a search is already active, it will be
+// aborted and a new search will start.
+// http://www.developers.meethue.com/documentation/lights-api#13_search_for_new_lights
+func (bridge *Bridge) FindNewLights() error {
+ uri := fmt.Sprintf("/api/%s/lights", bridge.Username)
+ _, _, err := bridge.Post(uri, nil)
+ if err != nil {
+ return err
+ }
+ return nil
+}
+
+// GetLightByName returns a light struct containing data on a given name.
+func (bridge *Bridge) GetLightByName(name string) (Light, error) {
+ lights, _ := bridge.GetAllLights()
+ for _, light := range lights {
+ if light.Name == name {
+ return light, nil
+ }
+ }
+ errOut := fmt.Sprintf("Error: Light name '%s' not found. ", name)
+ return Light{}, errors.New(errOut)
+}
+
+// Log the date, time, file location, line number, and function.
+// Message can be "" or Err can be nil (not both)
+func trace(message string, err error) {
+ pc := make([]uintptr, 10)
+ runtime.Callers(2, pc)
+ f := runtime.FuncForPC(pc[0])
+ file, line := f.FileLine(pc[0])
+ if err != nil {
+ log.Printf("%s:%d %s: %s\n", file, line, f.Name(), err)
+ } else {
+ log.Printf("%s:%d %s: %s\n", file, line, f.Name(), message)
+ }
+}
diff --git a/vendor/github.com/benburwell/gohue/group.go b/vendor/github.com/benburwell/gohue/group.go
new file mode 100644
index 0000000..db878d6
--- /dev/null
+++ b/vendor/github.com/benburwell/gohue/group.go
@@ -0,0 +1,67 @@
+/*
+* group.go
+* GoHue library for Philips Hue
+* Copyright (C) 2016 Collin Guarino (Collinux) collin.guarino@gmail.com
+* License: GPL version 2 or higher http://www.gnu.org/licenses/gpl.html
+ */
+// http://www.developers.meethue.com/documentation/groups-api
+
+package hue
+
+import (
+ "encoding/json"
+ "fmt"
+)
+
+// Action struct defines the state of a group
+type Action struct {
+ Alert string `json:"alert,omitempty"`
+ Bri int `json:"bri,omitempty"`
+ Colormode string `json:"colormode,omitempty"`
+ Ct int `json:"ct,omitempty"`
+ Effect string `json:"effect,omitempty"`
+ Hue *int `json:"hue,omitempty"`
+ On *bool `json:"on,omitempty"`
+ Sat *int `json:"sat,omitempty"`
+ XY []float64 `json:"xy,omitempty"`
+ Scene string `json:"scene,omitempty"`
+}
+
+// Group struct defines the attributes for a group of lights.
+type Group struct {
+ Action Action `json:"action"`
+ Lights []string `json:"lights"`
+ Name string `json:"name"`
+ Type string `json:"type"`
+}
+
+// GetGroups gets the attributes for each group of lights.
+// TODO: NOT TESTED, NOT FULLY IMPLEMENTED
+func (bridge *Bridge) GetGroups() ([]Group, error) {
+ uri := fmt.Sprintf("/api/%s/groups", bridge.Username)
+ body, _, err := bridge.Get(uri)
+ if err != nil {
+ return []Group{}, err
+ }
+
+ //fmt.Println("GROUP GET: ", string(body))
+
+ groups := map[string]Group{}
+ err = json.Unmarshal(body, &groups)
+ if err != nil {
+ return []Group{}, err
+ }
+ //fmt.Println("GROUPS: ", groups)
+
+ return []Group{}, nil
+}
+
+// SetGroupState sends an action to group
+func (bridge *Bridge) SetGroupState(group int, action *Action) error {
+ uri := fmt.Sprintf("/api/%s/groups/%d/action", bridge.Username, group)
+ _, _, err := bridge.Put(uri, action)
+ if err != nil {
+ return err
+ }
+ return nil
+}
diff --git a/vendor/github.com/benburwell/gohue/light.go b/vendor/github.com/benburwell/gohue/light.go
new file mode 100644
index 0000000..aef5954
--- /dev/null
+++ b/vendor/github.com/benburwell/gohue/light.go
@@ -0,0 +1,266 @@
+/*
+* light.go
+* GoHue library for Philips Hue
+* Copyright (C) 2016 Collin Guarino (Collinux) collin.guarino@gmail.com
+* License: GPL version 2 or higher http://www.gnu.org/licenses/gpl.html
+ */
+// http://www.developers.meethue.com/documentation/lights-api
+
+package hue
+
+import (
+ "errors"
+ "fmt"
+ "time"
+)
+
+// Light struct defines attributes of a light.
+type Light struct {
+ State struct {
+ On bool `json:"on"` // On or Off state of the light ("true" or "false")
+ Bri uint8 `json:"bri"` // Brightness value 1-254
+ Hue uint16 `json:"hue"` // Hue value 1-65535
+ Saturation uint8 `json:"sat"` // Saturation value 0-254
+ Effect string `json:"effect"` // "None" or "Colorloop"
+ XY [2]float32 `json:"xy"` // Coordinates of color in CIE color space
+ CT int `json:"ct"` // Mired Color Temperature (google it)
+ Alert string `json:"alert"` // "selected" or "none"
+ ColorMode string `json:"colormode"` // HS or XY mode for choosing color
+ Reachable bool `json:"reachable"`
+ } `json:"state"`
+ Type string `json:"type"`
+ Name string `json:"name"`
+ ModelID string `json:"modelid"`
+ ManufacturerName string `json:"manufacturername"`
+ UniqueID string `json:"uniqueid"`
+ SWVersion string `json:"swversion"`
+ Index int // Set by index of light array response
+ Bridge *Bridge // Set by the bridge when the light is found
+}
+
+// LightState used in Light.SetState to amend light attributes.
+type LightState struct {
+ On bool `json:"on"`
+ Bri uint8 `json:"bri,omitempty"`
+ Hue uint16 `json:"hue,omitempty"`
+ Sat uint8 `json:"sat,omitempty"`
+ XY *[2]float32 `json:"xy,omitempty"`
+ CT uint16 `json:"ct,omitempty"`
+ Effect string `json:"effect,omitempty"`
+ Alert string `json:"alert,omitempty"`
+ TransitionTime string `json:"transitiontime,omitempty"`
+ SaturationIncrement int16 `json:"sat_inc,omitempty"`
+ HueIncrement int32 `json:"hue_inc,omitempty"`
+ BrightnessIncrement int16 `json:"bri_inc,omitempty"`
+ CTIncrement int32 `json:"ct_inc,omitempty"`
+ XYIncrement *[2]float32 `json:"xy_inc,omitempty"`
+ Name string `json:"name,omitempty"`
+}
+
+// SetName assigns a new name in the light's
+// attributes as recognized by the bridge.
+func (light *Light) SetName(name string) error {
+ uri := fmt.Sprintf("/api/%s/lights/%d", light.Bridge.Username, light.Index)
+ body := make(map[string]string)
+ body["name"] = name
+ _, _, err := light.Bridge.Put(uri, body)
+ if err != nil {
+ return err
+ }
+ return nil
+}
+
+// Off turns the light source off
+func (light *Light) Off() error {
+ return light.SetState(LightState{On: false})
+}
+
+// On turns the light source on
+func (light *Light) On() error {
+ return light.SetState(LightState{On: true})
+}
+
+// Toggle switches the light source on and off
+func (light *Light) Toggle() error {
+ if light.State.On {
+ return light.Off()
+ }
+ return light.On()
+}
+
+// Delete removes the light from the
+// list of lights available on the bridge.
+func (light *Light) Delete() error {
+ uri := fmt.Sprintf("/api/%s/lights/%d", light.Bridge.Username, light.Index)
+ err := light.Bridge.Delete(uri)
+ if err != nil {
+ return err
+ }
+ return nil
+}
+
+// Blink increases and decrease the brightness
+// repeatedly for a given seconds interval and return the
+// light back to its off or on state afterwards.
+// Note: time will vary based on connection speed and algorithm speed.
+func (light *Light) Blink(seconds int) error {
+ originalPosition := light.State.On
+ originalBrightness := light.State.Bri
+ blinkMax := 75 // Percent brightness
+ blinkMin := 25 // Percent brightness
+
+ // Start with near maximum brightness and toggle between that and
+ // a lesser brightness to create a blinking effect.
+ for i := 0; i <= seconds*2; i++ {
+ if i == 0 {
+ err := light.SetBrightness(blinkMax)
+ if err != nil {
+ return err
+ }
+ } else if i%2 == 0 {
+ err := light.SetBrightness(blinkMax)
+ if err != nil {
+ return err
+ }
+ } else {
+ err := light.SetBrightness(blinkMin)
+ if err != nil {
+ return err
+ }
+ }
+ time.Sleep(time.Second / 2)
+ }
+
+ // Return the light to its original on or off state and brightness
+ if light.State.Bri != originalBrightness || light.State.On != originalPosition {
+ light.SetState(LightState{On: originalPosition, Bri: originalBrightness})
+ }
+ return nil
+}
+
+// ColorLoop sets the light state to 'colorloop' if `active`
+// is true or it sets the light state to "none" if `activate` is false.
+func (light *Light) ColorLoop(activate bool) error {
+ var state = "none"
+ if activate {
+ state = "colorloop"
+ }
+ return light.SetState(LightState{On: true, Effect: state})
+}
+
+// XY positions on the HSL color spectrum used in `Light.SetColor`
+// https://en.wikipedia.org/wiki/HSL_and_HSV
+var (
+ RED = &[2]float32{0.6915, 0.3083}
+ YELLOW = &[2]float32{0.4023, 0.4725}
+ ORANGE = &[2]float32{0.4693, 0.4007}
+ GREEN = &[2]float32{0.1700, 0.7000}
+ CYAN = &[2]float32{0.1610, 0.3549}
+ BLUE = &[2]float32{0.1530, 0.0480}
+ PURPLE = &[2]float32{0.2363, 0.1154}
+ PINK = &[2]float32{0.3645, 0.1500}
+ WHITE = &[2]float32{0.3227, 0.3290}
+)
+
+// SetColor requires a selection from the above light
+// color variable section and sets the light to that XY HSL color
+func (light *Light) SetColor(color *[2]float32) error {
+ lightState := LightState{On: true, XY: color}
+ err := light.SetState(lightState)
+ if err != nil {
+ return err
+ }
+ return nil
+}
+
+// SetColorXY requires a selection from the above light
+// color variable section and sets the light to that XY HSL color
+// aliased for clarity
+func (light *Light) SetColorXY(color *[2]float32) {
+ light.SetColor(color)
+}
+
+// SetColorHS requires a selection from the above light
+// color variable section and sets the light to the Hue value
+func (light *Light) SetColorHS(color uint16) error {
+ lightState := LightState{On: true, Hue: color}
+ err := light.SetState(lightState)
+ if err != nil {
+ return err
+ }
+ return nil
+}
+
+// Dim lowers the brightness by a percent.
+// Note the required value is an integer, for example "20" is converted to 20%.
+func (light *Light) Dim(percent int) error {
+ if percent > 0 && percent <= 100 {
+ originalBri := light.State.Bri
+ decreaseBri := float32(originalBri) * float32((float32(percent) / 100.0))
+ newBri := uint8(originalBri - uint8(decreaseBri))
+ if newBri < 0 {
+ newBri = 0
+ }
+ lightState := LightState{On: true, Bri: newBri}
+ err := light.SetState(lightState)
+ if err != nil {
+ return err
+ }
+ return nil
+ }
+ return errors.New("Light.Dim percentage given is not between 1 and 100. ")
+}
+
+// SetBrightness sets the brightness to a percentage of the maximum
+// maximum brightness as an integer (`LightStruct.Bri between 1 and 254 inclusive`)
+func (light *Light) SetBrightness(percent int) error {
+ if percent > 0 && percent <= 100 {
+ brightness := uint8(float32(percent) * 2.54) // 100=254x --> 2.54
+ lightState := LightState{On: true, Bri: brightness}
+ err := light.SetState(lightState)
+ if err != nil {
+ return err
+ }
+ return nil
+ }
+ return errors.New("Light.SetBrightness percentage is not between 1 and 100. ")
+}
+
+// Brighten will increase LightStruct.Bri by a given percent (integer)
+func (light *Light) Brighten(percent int) error {
+ if percent > 0 && percent <= 100 {
+ originalBri := light.State.Bri
+ increaseBri := float32(originalBri) * float32((float32(percent) / 100.0))
+ newBri := uint8(originalBri + uint8(increaseBri))
+ if newBri > 254 { // LightState.Bri must be between 1 and 254 inclusive
+ newBri = 254
+ }
+ lightState := LightState{On: true, Bri: newBri}
+ err := light.SetState(lightState)
+ if err != nil {
+ return err
+ }
+ return nil
+ }
+ return errors.New("Light.Brighten percentage is not between 1 and 100. ")
+}
+
+// SetState modifyies light attributes. See `LightState` struct for attributes.
+// Brightness must be between 1 and 254 (inclusive)
+// Hue must be between 0 and 65535 (inclusive)
+// Sat must be between 0 and 254 (inclusive)
+// See http://www.developers.meethue.com/documentation/lights-api for more info
+func (light *Light) SetState(newState LightState) error {
+ uri := fmt.Sprintf("/api/%s/lights/%d/state", light.Bridge.Username, light.Index)
+ _, _, err := light.Bridge.Put(uri, newState)
+ if err != nil {
+ return err
+ }
+
+ // Get the new light state and update the current Light struct
+ *light, err = light.Bridge.GetLightByIndex(light.Index)
+ if err != nil {
+ return err
+ }
+ return nil
+}
diff --git a/vendor/github.com/benburwell/gohue/scene.go b/vendor/github.com/benburwell/gohue/scene.go
new file mode 100644
index 0000000..e53b2a3
--- /dev/null
+++ b/vendor/github.com/benburwell/gohue/scene.go
@@ -0,0 +1,129 @@
+/*
+* scene.go
+* GoHue library for Philips Hue
+* Copyright (C) 2016 Collin Guarino (Collinux) collin.guarino@gmail.com
+* License: GPL version 2 or higher http://www.gnu.org/licenses/gpl.html
+ */
+// http://www.developers.meethue.com/documentation/scenes-api
+
+package hue
+
+import (
+ "encoding/json"
+ "errors"
+ "fmt"
+)
+
+// Scene struct defines attributes for Scene items
+type Scene struct {
+ Appdata *struct {
+ Data string `json:"data,omitempty"`
+ Version int `json:"version,omitempty"`
+ } `json:"appdata,omitempty"`
+ Lastupdated string `json:"lastupdated,omitempty"`
+ Lights []string `json:"lights,omitempty"`
+ Locked bool `json:"locked,omitempty"`
+ Name string `json:"name,omitempty"`
+ Owner string `json:"owner,omitempty"`
+ Picture string `json:"picture,omitempty"`
+ Recycle bool `json:"recycle,omitempty"`
+ Version int `json:"version,omitempty"`
+ ID string `json:",omitempty"`
+}
+
+// GetAllScenes gets the attributes for all scenes.
+func (bridge *Bridge) GetAllScenes() ([]Scene, error) {
+ uri := fmt.Sprintf("/api/%s/scenes", bridge.Username)
+ body, _, err := bridge.Get(uri)
+ if err != nil {
+ return []Scene{}, err
+ }
+
+ scenes := map[string]Scene{}
+ err = json.Unmarshal(body, &scenes)
+ if err != nil {
+ return []Scene{}, err
+ }
+ scenesList := []Scene{}
+ for key, value := range scenes {
+ scene := Scene{}
+ scene = value
+ scene.ID = key
+ scenesList = append(scenesList, scene)
+ }
+ return scenesList, nil
+}
+
+// GetScene gets the attributes for an individual scene.
+// This is used to optimize time when updating the state of the scene.
+// Note: The ID is not an index, it's a unique key generated for each scene.
+func (bridge *Bridge) GetScene(id string) (Scene, error) {
+ uri := fmt.Sprintf("/api/%s/scenes/%s", bridge.Username, id)
+ body, _, err := bridge.Get(uri)
+ if err != nil {
+ return Scene{}, err
+ }
+
+ scene := Scene{}
+ err = json.Unmarshal(body, &scene)
+ if err != nil {
+ return Scene{}, err
+ }
+ return scene, nil
+}
+
+// GetSceneByName gets the attributes for the scene identified by a name
+func (bridge *Bridge) GetSceneByName(name string) (Scene, error) {
+
+ scenes, _ := bridge.GetAllScenes()
+
+ // Iterate in reverse, as later entries seem to be the newest
+ for i := len(scenes) - 1; i >= 0; i-- {
+ if scenes[i].Name == name {
+ return scenes[i], nil
+ }
+ }
+
+ errOut := fmt.Sprintf("Error: Scene name '%s' not found. ", name)
+ return Scene{}, errors.New(errOut)
+}
+
+// RecallScene recalls a scene
+func (bridge *Bridge) RecallScene(id string) error {
+ action := &Action{Scene: id}
+ return bridge.SetGroupState(0, action)
+}
+
+// RecallSceneByName recalls a scene
+func (bridge *Bridge) RecallSceneByName(name string) error {
+ scene, err := bridge.GetSceneByName(name)
+ if err != nil {
+ return err
+ }
+ return bridge.RecallScene(scene.ID)
+}
+
+// CreateScene posts a new scene configuration to the bridge.
+func (bridge *Bridge) CreateScene(scene Scene) error {
+ uri := fmt.Sprintf("/api/%s/scenes/", bridge.Username)
+ _, _, err := bridge.Post(uri, scene)
+ if err != nil {
+ return err
+ }
+ return nil
+}
+
+// Bridge.ModifySceneState amends light states for lights
+// included in a scene list. See `Bridge.ModifyScene` for
+// changing the lights included in the scene list.
+// func (bridge *Bridge) ModifySceneState() error {
+//
+// }
+
+// Bridge.ModifyScene amends the lights included for a given scene or
+// it can be used to change the scene name. To amend light states for
+// lights included in a scene list see `Bridge.ModifySceneState`.
+// func (bridge *Bridge) ModifyScene() error {
+// uri := fmt.Sprintf("/api/%s/scenes/%s/lightstates/%s",
+// bridge.Username, oldScene.ID, )
+// }
diff --git a/vendor/github.com/benburwell/gohue/schedule.go b/vendor/github.com/benburwell/gohue/schedule.go
new file mode 100644
index 0000000..52315f9
--- /dev/null
+++ b/vendor/github.com/benburwell/gohue/schedule.go
@@ -0,0 +1,109 @@
+/*
+* schedule.go
+* GoHue library for Philips Hue
+* Copyright (C) 2016 Collin Guarino (Collinux) collin.guarino@gmail.com
+* License: GPL version 2 or higher http://www.gnu.org/licenses/gpl.html
+ */
+// http://www.developers.meethue.com/documentation/schedules-api-0
+
+package hue
+
+import (
+ "encoding/json"
+ "fmt"
+)
+
+// Schedule struct defines attributes of Alarms and Timers
+type Schedule struct {
+ Name string `json:"name"`
+ Description string `json:"description"`
+ Command struct {
+ Address string `json:"address"`
+ Body struct {
+ Scene string `json:"scene"`
+ } `json:"body"`
+ Method string `json:"method"`
+ } `json:"command"`
+ Localtime string `json:"localtime"`
+ Time string `json:"time"`
+ Created string `json:"created"`
+ Status string `json:"status"`
+ Autodelete bool `json:"autodelete"`
+ ID string
+}
+
+// GetAllSchedules gets Alarms and Timers in a Schedule struct.
+func (bridge *Bridge) GetAllSchedules() ([]Schedule, error) {
+ uri := fmt.Sprintf("/api/%s/schedules", bridge.Username)
+ body, _, err := bridge.Get(uri)
+ if err != nil {
+ return []Schedule{}, err
+ }
+
+ // Each index key is the topmost element of the json array.
+ // Unmarshal the array, loop through each index key, and add it to the list
+ schedules := map[string]Schedule{}
+ err = json.Unmarshal(body, &schedules)
+ if err != nil {
+ return []Schedule{}, err
+ }
+ scheduleList := []Schedule{}
+ for key, value := range schedules {
+ schedule := Schedule{}
+ schedule = value
+ schedule.ID = key
+ scheduleList = append(scheduleList, schedule)
+ }
+ return scheduleList, nil
+}
+
+// GetSchedule gets the attributes for an individual schedule.
+// This is used to optimize time when updating the state of a schedule item.
+// Note: The ID is not an index, it's a unique key generated for each schedule.
+func (bridge *Bridge) GetSchedule(id string) (Schedule, error) {
+ uri := fmt.Sprintf("/api/%s/schedules/%s", bridge.Username, id)
+ body, _, err := bridge.Get(uri)
+ if err != nil {
+ return Schedule{}, err
+ }
+
+ schedule := Schedule{}
+ err = json.Unmarshal(body, &schedule)
+ if err != nil {
+ return Schedule{}, err
+ }
+ return schedule, nil
+}
+
+// CreateSchedule TODO: NOT TESTED, NOT FULLY IMPLEMENTED
+func (bridge *Bridge) CreateSchedule(schedule Schedule) error {
+ uri := fmt.Sprintf("/api/%s/schedules", bridge.Username)
+ body, _, err := bridge.Post(uri, schedule)
+ if err != nil {
+ return err
+ }
+
+ fmt.Println("CREATE SCHEDULE BODY: ", string(body))
+ return nil
+}
+
+// func (schedule *Schedule) Disable() {
+//
+// }
+//
+// func (schedule *Schedule) Enable() {
+//
+// }
+//
+//
+// func (bridge *Bridge) GetSchedule(index int) (interface{}, error) {
+// return []interface{}, nil
+// }
+//
+// func (bridge *Bridge) SetSchedule(index int, schedule interface{}) error {
+// return nil
+// }
+//
+// func (bridge *Bridge) DeleteSchedule(index int) error {
+// return nil
+// }
diff --git a/vendor/github.com/cpucycle/astrotime/README.md b/vendor/github.com/cpucycle/astrotime/README.md
new file mode 100644
index 0000000..88c00ab
--- /dev/null
+++ b/vendor/github.com/cpucycle/astrotime/README.md
@@ -0,0 +1,44 @@
+astrotime
+=========
+
+NOAA astrological algorithms for sunrise and sunset ported to Go
+
+
+FUNCTIONS:
+
+// CalcSunrise calculates the sunrise, in local time, on the day t at the
+// location specified in longitude and latitude.
+func CalcSunrise(t time.Time, latitude float64, longitude float64) time.Time
+
+// NextSunrise returns date/time of the next sunrise after tAfter
+func NextSunrise(tAfter time.Time, latitude float64, longitude float64) (tSunrise time.Time)
+
+// CalcSunset calculates the sunset, in local time, on the day t at the
+// location specified in longitude and latitude.
+func CalcSunset(t time.Time, latitude float64, longitude float64) time.Time
+
+// NextSunset returns date/time of the next sunset after tAfter
+func NextSunset(tAfter time.Time, latitude float64, longitude float64) (tSunset time.Time)
+
+
+EXAMPLE:
+
+```go
+package main
+
+import (
+ "astrotime"
+ "fmt"
+ "time"
+)
+
+const LATITUDE = float64(38.8895)
+const LONGITUDE = float64(77.0352)
+
+func main() {
+ t := astrotime.NextSunrise(time.Now(), LATITUDE, LONGITUDE)
+
+ tzname, _ := t.Zone()
+ fmt.Printf("The next sunrise at the Washington Monument is %d:%02d %s on %d/%d/%d.\n", t.Hour(), t.Minute(), tzname, t.Month(), t.Day(), t.Year())
+}
+```
diff --git a/vendor/github.com/cpucycle/astrotime/astrotime.go b/vendor/github.com/cpucycle/astrotime/astrotime.go
new file mode 100755
index 0000000..f2164a7
--- /dev/null
+++ b/vendor/github.com/cpucycle/astrotime/astrotime.go
@@ -0,0 +1,405 @@
+// NAA - NOAA's Astronomical Algorithms
+package astrotime
+
+// (JavaScript web page
+// http://www.srrb.noaa.gov/highlights/sunrise/sunrise.html by
+// Chris Cornwall, Aaron Horiuchi and Chris Lehman)
+// Ported to C++ by Pete Gray (petegray@ieee.org), July 2006
+// Released as Open Source and can be used in any way, as long as the
+// above description remains in place.
+
+import (
+ "math"
+ "time"
+)
+
+// Conversions
+const (
+ RadToDeg = 180 / math.Pi
+ DegToRad = math.Pi / 180
+ RadToGrad = 200 / math.Pi
+ GradToDeg = math.Pi / 200
+)
+
+// More time constants
+const (
+ OneDay = time.Hour * 24
+)
+
+// CalcJD converts a time.Time object to a julian date
+func CalcJD(t time.Time) float64 {
+ y, m, d, hh, mm, ss, ms := t.Year(), int(t.Month()), t.Day(), t.Hour(), t.Minute(), t.Second(), t.Nanosecond()/1e6
+
+ // Calc integer part (days)
+ jday := (1461*(y+4800+(m-14)/12))/4 + (367*(m-2-12*((m-14)/12)))/12 - (3*((y+4900+(m-14)/12)/100))/4 + d - 32075
+
+ // Calc floating point part (fraction of a day)
+ jdatetime := float64(jday) + (float64(hh)-12.0)/24.0 + (float64(mm) / 1440.0) + (float64(ss) / 86400.0) + (float64(ms) / 86400000.0)
+
+ // Adjust to UT
+ _, zoneOffset := t.Zone()
+
+ return jdatetime + float64(zoneOffset)/86400
+}
+
+// Name: calcTimeJulianCent
+// Type: Function
+// Purpose: convert Julian Day to centuries since J2000.0.
+// Arguments:
+// jd : the Julian Day to convert
+// Return value:
+// the T value corresponding to the Julian Day
+
+func calcTimeJulianCent(t float64) float64 {
+ return (t - 2451545.0) / 36525.0
+}
+
+// Name: calcJDFromJulianCent
+// Type: Function
+// Purpose: convert centuries since J2000.0 to Julian Day.
+// Arguments:
+// t : number of Julian centuries since J2000.0
+// Return value:
+// the Julian Day corresponding to the t value
+
+func calcJDFromJulianCent(t float64) float64 {
+ return t*36525.0 + 2451545.0
+}
+
+// Name: calGeomMeanLongSun
+// Type: Function
+// Purpose: calculate the Geometric Mean Longitude of the Sun
+// Arguments:
+// t : number of Julian centuries since J2000.0
+// Return value:
+// the Geometric Mean Longitude of the Sun in degrees
+
+func calcGeomMeanLongSun(t float64) float64 {
+ L0 := 280.46646 + t*(36000.76983+0.0003032*t)
+ for L0 > 360.0 {
+ L0 -= 360.0
+ }
+ for L0 < 0.0 {
+ L0 += 360.0
+ }
+ return L0
+}
+
+// Name: calcMeanObliquityOfEcliptic
+// Type: Function
+// Purpose: calculate the mean obliquity of the ecliptic
+// Arguments:
+// t : number of Julian centuries since J2000.0
+// Return value:
+// mean obliquity in degrees
+
+func calcMeanObliquityOfEcliptic(t float64) float64 {
+ seconds := 21.448 - t*(46.8150+t*(0.00059-t*(0.001813)))
+ return 23.0 + (26.0+(seconds/60.0))/60.0
+}
+
+// Name: calcObliquityCorrection
+// Type: Function
+// Purpose: calculate the corrected obliquity of the ecliptic
+// Arguments:
+// t : number of Julian centuries since J2000.0
+// Return value:
+// corrected obliquity in degrees
+
+func calcObliquityCorrection(t float64) float64 {
+ e0 := calcMeanObliquityOfEcliptic(t)
+ omega := 125.04 - 1934.136*t
+ return e0 + 0.00256*math.Cos(omega*DegToRad)
+}
+
+// Name: calcEccentricityEarthOrbit
+// Type: Function
+// Purpose: calculate the eccentricity of earth's orbit
+// Arguments:
+// t : number of Julian centuries since J2000.0
+// Return value:
+// the unitless eccentricity
+
+func calcEccentricityEarthOrbit(t float64) float64 {
+ return 0.016708634 - t*(0.000042037+0.0000001267*t)
+}
+
+// Name: calGeomAnomalySun
+// Type: Function
+// Purpose: calculate the Geometric Mean Anomaly of the Sun
+// Arguments:
+// t : number of Julian centuries since J2000.0
+// Return value:
+// the Geometric Mean Anomaly of the Sun in degrees
+
+func calcGeomMeanAnomalySun(t float64) float64 {
+ return 357.52911 + t*(35999.05029-0.0001537*t)
+}
+
+// Name: calcEquationOfTime
+// Type: Function
+// Purpose: calculate the difference between true solar time and mean
+// solar time
+//Arguments:
+// t : number of Julian centuries since J2000.0
+// Return value:
+// equation of time in minutes of time
+
+func calcEquationOfTime(t float64) float64 {
+ epsilon := calcObliquityCorrection(t)
+ l0 := calcGeomMeanLongSun(t)
+ e := calcEccentricityEarthOrbit(t)
+ m := calcGeomMeanAnomalySun(t)
+
+ y := math.Tan(DegToRad * epsilon / 2.0)
+ y *= y
+
+ sin2l0 := math.Sin(2.0 * DegToRad * l0)
+ sinm := math.Sin(DegToRad * m)
+ cos2l0 := math.Cos(2.0 * DegToRad * l0)
+ sin4l0 := math.Sin(4.0 * DegToRad * l0)
+ sin2m := math.Sin(2.0 * DegToRad * m)
+
+ Etime := y*sin2l0 - 2.0*e*sinm + 4.0*e*y*sinm*cos2l0 - 0.5*y*y*sin4l0 - 1.25*e*e*sin2m
+
+ return RadToDeg * Etime * 4.0
+}
+
+// Name: calcSunEqOfCenter
+// Type: Function
+// Purpose: calculate the equation of center for the sun
+// Arguments:
+// t : number of Julian centuries since J2000.0
+// Return value:
+// in degrees
+
+func calcSunEqOfCenter(t float64) float64 {
+ m := calcGeomMeanAnomalySun(t)
+ mrad := DegToRad * m
+ sinm := math.Sin(mrad)
+ sin2m := math.Sin(mrad + mrad)
+ sin3m := math.Sin(mrad + mrad + mrad)
+ return sinm*(1.914602-t*(0.004817+0.000014*t)) + sin2m*(0.019993-0.000101*t) + sin3m*0.000289
+}
+
+// Name: calcSunTrueLong
+// Type: Function
+// Purpose: calculate the true longitude of the sun
+// Arguments:
+// t : number of Julian centuries since J2000.0
+// Return value:
+// sun's true longitude in degrees
+
+func calcSunTrueLong(t float64) float64 {
+ l0 := calcGeomMeanLongSun(t)
+ c := calcSunEqOfCenter(t)
+ return l0 + c
+}
+
+// Name: calcSunApparentLong
+// Type: Function
+// Purpose: calculate the apparent longitude of the sun
+// Arguments:
+// t : number of Julian centuries since J2000.0
+// Return value:
+// sun's apparent longitude in degrees
+
+func calcSunApparentLong(t float64) float64 {
+ o := calcSunTrueLong(t)
+ omega := 125.04 - 1934.136*t
+ return o - 0.00569 - 0.00478*math.Sin(DegToRad*omega)
+}
+
+// Name: calcSunDeclination
+// Type: Function
+// Purpose: calculate the declination of the sun
+// Arguments:
+// t : number of Julian centuries since J2000.0
+// Return value:
+// sun's declination in degrees
+
+func calcSunDeclination(t float64) float64 {
+ e := calcObliquityCorrection(t)
+ lambda := calcSunApparentLong(t)
+ sint := math.Sin(DegToRad*e) * math.Sin(DegToRad*lambda)
+ return RadToDeg * math.Asin(sint)
+}
+
+// Name: calcHourAngleSunrise
+// Type: Function
+// Purpose: calculate the hour angle of the sun at sunrise for the
+// latitude
+//Arguments:
+// lat : latitude of observer in degrees
+// solarDec : declination angle of sun in degrees
+//Return value:
+// hour angle of sunrise in radians
+
+func calcHourAngleSunrise(lat float64, solarDec float64) float64 {
+ latRad := DegToRad * lat
+ sdRad := DegToRad * solarDec
+ return (math.Acos(math.Cos(DegToRad*90.833)/(math.Cos(latRad)*math.Cos(sdRad)) - math.Tan(latRad)*math.Tan(sdRad)))
+}
+
+// Name: calcSolNoonUTC
+// Type: Function
+// Purpose: calculate the Universal Coordinated Time (UTC) of solar
+// noon for the given day at the given location on earth
+// Arguments:
+// t : number of Julian centuries since J2000.0
+// longitude : longitude of observer in degrees
+// Return value:
+// time in minutes from zero Z
+
+func calcSolNoonUTC(t float64, longitude float64) float64 {
+ // First pass uses approximate solar noon to calculate eqtime
+ tnoon := calcTimeJulianCent(calcJDFromJulianCent(t) + longitude/360.0)
+ eqTime := calcEquationOfTime(tnoon)
+ solNoonUTC := 720 + (longitude * 4) - eqTime
+ newt := calcTimeJulianCent(calcJDFromJulianCent(t) - 0.5 + solNoonUTC/1440.0)
+ eqTime = calcEquationOfTime(newt)
+ return 720 + (longitude * 4) - eqTime
+}
+
+// Name: calcSunriseUTC
+// Type: Function
+// Purpose: calculate the Universal Coordinated Time (UTC) of sunrise
+// for the given day at the given location on earth
+// Arguments:
+// JD : julian day
+// latitude : latitude of observer in degrees
+// longitude : longitude of observer in degrees
+// Return value:
+// time in minutes from zero Z
+
+// Calculate the UTC sunrise for the given day at the given location
+func calcSunriseUTC(jd float64, latitude float64, longitude float64) float64 {
+
+ t := calcTimeJulianCent(jd)
+
+ // *** Find the time of solar noon at the location, and use
+ // that declination. This is better than start of the
+ // Julian day
+
+ noonmin := calcSolNoonUTC(t, longitude)
+ tnoon := calcTimeJulianCent(jd + noonmin/1440.0)
+
+ // *** First pass to approximate sunrise (using solar noon)
+
+ eqTime := calcEquationOfTime(tnoon)
+ solarDec := calcSunDeclination(tnoon)
+ hourAngle := calcHourAngleSunrise(latitude, solarDec)
+
+ delta := longitude - RadToDeg*hourAngle
+ timeDiff := 4 * delta
+ timeUTC := 720 + timeDiff - eqTime
+
+ // *** Second pass includes fractional jday in gamma calc
+
+ newt := calcTimeJulianCent(calcJDFromJulianCent(t) + timeUTC/1440.0)
+ eqTime = calcEquationOfTime(newt)
+ solarDec = calcSunDeclination(newt)
+ hourAngle = calcHourAngleSunrise(latitude, solarDec)
+ delta = longitude - RadToDeg*hourAngle
+ timeDiff = 4 * delta
+ timeUTC = 720 + timeDiff - eqTime
+ return timeUTC
+}
+
+// CalcSunrise calculates the sunrise, in local time, on the day t at the
+// location specified in longitude and latitude.
+func CalcSunrise(t time.Time, latitude float64, longitude float64) time.Time {
+ jd := CalcJD(t)
+ sunriseUTC := time.Duration(math.Floor(calcSunriseUTC(jd, latitude, longitude)*60) * 1e9)
+ loc, _ := time.LoadLocation("UTC")
+ return time.Date(t.Year(), t.Month(), t.Day(), 0, 0, 0, 0, loc).Add(sunriseUTC).In(t.Location())
+}
+
+// Name: calcHourAngleSunset
+// Type: Function
+// Purpose: calculate the hour angle of the sun at sunset for the
+// latitude
+// Arguments:
+// lat : latitude of observer in degrees
+// solarDec : declination angle of sun in degrees
+// Return value:
+// hour angle of sunset in radians
+
+func calcHourAngleSunset(lat float64, solarDec float64) float64 {
+ latRad := DegToRad * lat
+ sdRad := DegToRad * solarDec
+
+ HA := (math.Acos(math.Cos(DegToRad*90.833)/(math.Cos(latRad)*math.Cos(sdRad)) - math.Tan(latRad)*math.Tan(sdRad)))
+
+ return -HA // in radians
+}
+
+// Name: calcSunsetUTC
+// Type: Function
+// Purpose: calculate the Universal Coordinated Time (UTC) of sunset
+// for the given day at the given location on earth
+//Arguments:
+// JD : julian day
+// latitude : latitude of observer in degrees
+// longitude : longitude of observer in degrees
+// Return value:
+// time in minutes from zero Z
+
+func calcSunsetUTC(jd float64, latitude float64, longitude float64) float64 {
+ t := calcTimeJulianCent(jd)
+
+ // *** Find the time of solar noon at the location, and use
+ // that declination. This is better than start of the
+ // Julian day
+
+ noonmin := calcSolNoonUTC(t, longitude)
+ tnoon := calcTimeJulianCent(jd + noonmin/1440.0)
+
+ // First calculates sunrise and approx length of day
+
+ eqTime := calcEquationOfTime(tnoon)
+ solarDec := calcSunDeclination(tnoon)
+ hourAngle := calcHourAngleSunset(latitude, solarDec)
+
+ delta := longitude - RadToDeg*hourAngle
+ timeDiff := 4 * delta
+ timeUTC := 720 + timeDiff - eqTime
+
+ // first pass used to include fractional day in gamma calc
+
+ newt := calcTimeJulianCent(calcJDFromJulianCent(t) + timeUTC/1440.0)
+ eqTime = calcEquationOfTime(newt)
+ solarDec = calcSunDeclination(newt)
+ hourAngle = calcHourAngleSunset(latitude, solarDec)
+
+ delta = longitude - RadToDeg*hourAngle
+ timeDiff = 4 * delta
+ return 720 + timeDiff - eqTime
+}
+
+// CalcSunset calculates the sunset, in local time, on the day t at the
+// location specified in longitude and latitude.
+func CalcSunset(t time.Time, latitude float64, longitude float64) time.Time {
+ jd := CalcJD(t)
+ sunsetUTC := time.Duration(math.Floor(calcSunsetUTC(jd, latitude, longitude)*60) * 1e9)
+ loc, _ := time.LoadLocation("UTC")
+ return time.Date(t.Year(), t.Month(), t.Day(), 0, 0, 0, 0, loc).Add(sunsetUTC).In(t.Location())
+}
+
+// NextSunrise returns date/time of the next sunrise after tAfter
+func NextSunrise(tAfter time.Time, latitude float64, longitude float64) (tSunrise time.Time) {
+ tSunrise = CalcSunrise(tAfter, latitude, longitude)
+ if tAfter.After(tSunrise) {
+ tSunrise = CalcSunrise(tAfter.Add(OneDay), latitude, longitude)
+ }
+ return
+}
+
+// NextSunset returns date/time of the next sunset after tAfter
+func NextSunset(tAfter time.Time, latitude float64, longitude float64) (tSunset time.Time) {
+ tSunset = CalcSunset(tAfter, latitude, longitude)
+ if tAfter.After(tSunset) {
+ tSunset = CalcSunset(tAfter.Add(OneDay), latitude, longitude)
+ }
+ return
+}
diff --git a/vendor/gopkg.in/yaml.v2/.travis.yml b/vendor/gopkg.in/yaml.v2/.travis.yml
new file mode 100644
index 0000000..9f55693
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/.travis.yml
@@ -0,0 +1,12 @@
+language: go
+
+go:
+ - 1.4
+ - 1.5
+ - 1.6
+ - 1.7
+ - 1.8
+ - 1.9
+ - tip
+
+go_import_path: gopkg.in/yaml.v2
diff --git a/vendor/gopkg.in/yaml.v2/LICENSE b/vendor/gopkg.in/yaml.v2/LICENSE
new file mode 100644
index 0000000..8dada3e
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/LICENSE
@@ -0,0 +1,201 @@
+ Apache License
+ Version 2.0, January 2004
+ http://www.apache.org/licenses/
+
+ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+ 1. Definitions.
+
+ "License" shall mean the terms and conditions for use, reproduction,
+ and distribution as defined by Sections 1 through 9 of this document.
+
+ "Licensor" shall mean the copyright owner or entity authorized by
+ the copyright owner that is granting the License.
+
+ "Legal Entity" shall mean the union of the acting entity and all
+ other entities that control, are controlled by, or are under common
+ control with that entity. For the purposes of this definition,
+ "control" means (i) the power, direct or indirect, to cause the
+ direction or management of such entity, whether by contract or
+ otherwise, or (ii) ownership of fifty percent (50%) or more of the
+ outstanding shares, or (iii) beneficial ownership of such entity.
+
+ "You" (or "Your") shall mean an individual or Legal Entity
+ exercising permissions granted by this License.
+
+ "Source" form shall mean the preferred form for making modifications,
+ including but not limited to software source code, documentation
+ source, and configuration files.
+
+ "Object" form shall mean any form resulting from mechanical
+ transformation or translation of a Source form, including but
+ not limited to compiled object code, generated documentation,
+ and conversions to other media types.
+
+ "Work" shall mean the work of authorship, whether in Source or
+ Object form, made available under the License, as indicated by a
+ copyright notice that is included in or attached to the work
+ (an example is provided in the Appendix below).
+
+ "Derivative Works" shall mean any work, whether in Source or Object
+ form, that is based on (or derived from) the Work and for which the
+ editorial revisions, annotations, elaborations, or other modifications
+ represent, as a whole, an original work of authorship. For the purposes
+ of this License, Derivative Works shall not include works that remain
+ separable from, or merely link (or bind by name) to the interfaces of,
+ the Work and Derivative Works thereof.
+
+ "Contribution" shall mean any work of authorship, including
+ the original version of the Work and any modifications or additions
+ to that Work or Derivative Works thereof, that is intentionally
+ submitted to Licensor for inclusion in the Work by the copyright owner
+ or by an individual or Legal Entity authorized to submit on behalf of
+ the copyright owner. For the purposes of this definition, "submitted"
+ means any form of electronic, verbal, or written communication sent
+ to the Licensor or its representatives, including but not limited to
+ communication on electronic mailing lists, source code control systems,
+ and issue tracking systems that are managed by, or on behalf of, the
+ Licensor for the purpose of discussing and improving the Work, but
+ excluding communication that is conspicuously marked or otherwise
+ designated in writing by the copyright owner as "Not a Contribution."
+
+ "Contributor" shall mean Licensor and any individual or Legal Entity
+ on behalf of whom a Contribution has been received by Licensor and
+ subsequently incorporated within the Work.
+
+ 2. Grant of Copyright License. Subject to the terms and conditions of
+ this License, each Contributor hereby grants to You a perpetual,
+ worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+ copyright license to reproduce, prepare Derivative Works of,
+ publicly display, publicly perform, sublicense, and distribute the
+ Work and such Derivative Works in Source or Object form.
+
+ 3. Grant of Patent License. Subject to the terms and conditions of
+ this License, each Contributor hereby grants to You a perpetual,
+ worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+ (except as stated in this section) patent license to make, have made,
+ use, offer to sell, sell, import, and otherwise transfer the Work,
+ where such license applies only to those patent claims licensable
+ by such Contributor that are necessarily infringed by their
+ Contribution(s) alone or by combination of their Contribution(s)
+ with the Work to which such Contribution(s) was submitted. If You
+ institute patent litigation against any entity (including a
+ cross-claim or counterclaim in a lawsuit) alleging that the Work
+ or a Contribution incorporated within the Work constitutes direct
+ or contributory patent infringement, then any patent licenses
+ granted to You under this License for that Work shall terminate
+ as of the date such litigation is filed.
+
+ 4. Redistribution. You may reproduce and distribute copies of the
+ Work or Derivative Works thereof in any medium, with or without
+ modifications, and in Source or Object form, provided that You
+ meet the following conditions:
+
+ (a) You must give any other recipients of the Work or
+ Derivative Works a copy of this License; and
+
+ (b) You must cause any modified files to carry prominent notices
+ stating that You changed the files; and
+
+ (c) You must retain, in the Source form of any Derivative Works
+ that You distribute, all copyright, patent, trademark, and
+ attribution notices from the Source form of the Work,
+ excluding those notices that do not pertain to any part of
+ the Derivative Works; and
+
+ (d) If the Work includes a "NOTICE" text file as part of its
+ distribution, then any Derivative Works that You distribute must
+ include a readable copy of the attribution notices contained
+ within such NOTICE file, excluding those notices that do not
+ pertain to any part of the Derivative Works, in at least one
+ of the following places: within a NOTICE text file distributed
+ as part of the Derivative Works; within the Source form or
+ documentation, if provided along with the Derivative Works; or,
+ within a display generated by the Derivative Works, if and
+ wherever such third-party notices normally appear. The contents
+ of the NOTICE file are for informational purposes only and
+ do not modify the License. You may add Your own attribution
+ notices within Derivative Works that You distribute, alongside
+ or as an addendum to the NOTICE text from the Work, provided
+ that such additional attribution notices cannot be construed
+ as modifying the License.
+
+ You may add Your own copyright statement to Your modifications and
+ may provide additional or different license terms and conditions
+ for use, reproduction, or distribution of Your modifications, or
+ for any such Derivative Works as a whole, provided Your use,
+ reproduction, and distribution of the Work otherwise complies with
+ the conditions stated in this License.
+
+ 5. Submission of Contributions. Unless You explicitly state otherwise,
+ any Contribution intentionally submitted for inclusion in the Work
+ by You to the Licensor shall be under the terms and conditions of
+ this License, without any additional terms or conditions.
+ Notwithstanding the above, nothing herein shall supersede or modify
+ the terms of any separate license agreement you may have executed
+ with Licensor regarding such Contributions.
+
+ 6. Trademarks. This License does not grant permission to use the trade
+ names, trademarks, service marks, or product names of the Licensor,
+ except as required for reasonable and customary use in describing the
+ origin of the Work and reproducing the content of the NOTICE file.
+
+ 7. Disclaimer of Warranty. Unless required by applicable law or
+ agreed to in writing, Licensor provides the Work (and each
+ Contributor provides its Contributions) on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ implied, including, without limitation, any warranties or conditions
+ of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+ PARTICULAR PURPOSE. You are solely responsible for determining the
+ appropriateness of using or redistributing the Work and assume any
+ risks associated with Your exercise of permissions under this License.
+
+ 8. Limitation of Liability. In no event and under no legal theory,
+ whether in tort (including negligence), contract, or otherwise,
+ unless required by applicable law (such as deliberate and grossly
+ negligent acts) or agreed to in writing, shall any Contributor be
+ liable to You for damages, including any direct, indirect, special,
+ incidental, or consequential damages of any character arising as a
+ result of this License or out of the use or inability to use the
+ Work (including but not limited to damages for loss of goodwill,
+ work stoppage, computer failure or malfunction, or any and all
+ other commercial damages or losses), even if such Contributor
+ has been advised of the possibility of such damages.
+
+ 9. Accepting Warranty or Additional Liability. While redistributing
+ the Work or Derivative Works thereof, You may choose to offer,
+ and charge a fee for, acceptance of support, warranty, indemnity,
+ or other liability obligations and/or rights consistent with this
+ License. However, in accepting such obligations, You may act only
+ on Your own behalf and on Your sole responsibility, not on behalf
+ of any other Contributor, and only if You agree to indemnify,
+ defend, and hold each Contributor harmless for any liability
+ incurred by, or claims asserted against, such Contributor by reason
+ of your accepting any such warranty or additional liability.
+
+ END OF TERMS AND CONDITIONS
+
+ APPENDIX: How to apply the Apache License to your work.
+
+ To apply the Apache License to your work, attach the following
+ boilerplate notice, with the fields enclosed by brackets "{}"
+ replaced with your own identifying information. (Don't include
+ the brackets!) The text should be enclosed in the appropriate
+ comment syntax for the file format. We also recommend that a
+ file or class name and description of purpose be included on the
+ same "printed page" as the copyright notice for easier
+ identification within third-party archives.
+
+ Copyright {yyyy} {name of copyright owner}
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
diff --git a/vendor/gopkg.in/yaml.v2/LICENSE.libyaml b/vendor/gopkg.in/yaml.v2/LICENSE.libyaml
new file mode 100644
index 0000000..8da58fb
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/LICENSE.libyaml
@@ -0,0 +1,31 @@
+The following files were ported to Go from C files of libyaml, and thus
+are still covered by their original copyright and license:
+
+ apic.go
+ emitterc.go
+ parserc.go
+ readerc.go
+ scannerc.go
+ writerc.go
+ yamlh.go
+ yamlprivateh.go
+
+Copyright (c) 2006 Kirill Simonov
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/vendor/gopkg.in/yaml.v2/NOTICE b/vendor/gopkg.in/yaml.v2/NOTICE
new file mode 100644
index 0000000..866d74a
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/NOTICE
@@ -0,0 +1,13 @@
+Copyright 2011-2016 Canonical Ltd.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
diff --git a/vendor/gopkg.in/yaml.v2/README.md b/vendor/gopkg.in/yaml.v2/README.md
new file mode 100644
index 0000000..b50c6e8
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/README.md
@@ -0,0 +1,133 @@
+# YAML support for the Go language
+
+Introduction
+------------
+
+The yaml package enables Go programs to comfortably encode and decode YAML
+values. It was developed within [Canonical](https://www.canonical.com) as
+part of the [juju](https://juju.ubuntu.com) project, and is based on a
+pure Go port of the well-known [libyaml](http://pyyaml.org/wiki/LibYAML)
+C library to parse and generate YAML data quickly and reliably.
+
+Compatibility
+-------------
+
+The yaml package supports most of YAML 1.1 and 1.2, including support for
+anchors, tags, map merging, etc. Multi-document unmarshalling is not yet
+implemented, and base-60 floats from YAML 1.1 are purposefully not
+supported since they're a poor design and are gone in YAML 1.2.
+
+Installation and usage
+----------------------
+
+The import path for the package is *gopkg.in/yaml.v2*.
+
+To install it, run:
+
+ go get gopkg.in/yaml.v2
+
+API documentation
+-----------------
+
+If opened in a browser, the import path itself leads to the API documentation:
+
+ * [https://gopkg.in/yaml.v2](https://gopkg.in/yaml.v2)
+
+API stability
+-------------
+
+The package API for yaml v2 will remain stable as described in [gopkg.in](https://gopkg.in).
+
+
+License
+-------
+
+The yaml package is licensed under the Apache License 2.0. Please see the LICENSE file for details.
+
+
+Example
+-------
+
+```Go
+package main
+
+import (
+ "fmt"
+ "log"
+
+ "gopkg.in/yaml.v2"
+)
+
+var data = `
+a: Easy!
+b:
+ c: 2
+ d: [3, 4]
+`
+
+// Note: struct fields must be public in order for unmarshal to
+// correctly populate the data.
+type T struct {
+ A string
+ B struct {
+ RenamedC int `yaml:"c"`
+ D []int `yaml:",flow"`
+ }
+}
+
+func main() {
+ t := T{}
+
+ err := yaml.Unmarshal([]byte(data), &t)
+ if err != nil {
+ log.Fatalf("error: %v", err)
+ }
+ fmt.Printf("--- t:\n%v\n\n", t)
+
+ d, err := yaml.Marshal(&t)
+ if err != nil {
+ log.Fatalf("error: %v", err)
+ }
+ fmt.Printf("--- t dump:\n%s\n\n", string(d))
+
+ m := make(map[interface{}]interface{})
+
+ err = yaml.Unmarshal([]byte(data), &m)
+ if err != nil {
+ log.Fatalf("error: %v", err)
+ }
+ fmt.Printf("--- m:\n%v\n\n", m)
+
+ d, err = yaml.Marshal(&m)
+ if err != nil {
+ log.Fatalf("error: %v", err)
+ }
+ fmt.Printf("--- m dump:\n%s\n\n", string(d))
+}
+```
+
+This example will generate the following output:
+
+```
+--- t:
+{Easy! {2 [3 4]}}
+
+--- t dump:
+a: Easy!
+b:
+ c: 2
+ d: [3, 4]
+
+
+--- m:
+map[a:Easy! b:map[c:2 d:[3 4]]]
+
+--- m dump:
+a: Easy!
+b:
+ c: 2
+ d:
+ - 3
+ - 4
+```
+
diff --git a/vendor/gopkg.in/yaml.v2/apic.go b/vendor/gopkg.in/yaml.v2/apic.go
new file mode 100644
index 0000000..1f7e87e
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/apic.go
@@ -0,0 +1,739 @@
+package yaml
+
+import (
+ "io"
+)
+
+func yaml_insert_token(parser *yaml_parser_t, pos int, token *yaml_token_t) {
+ //fmt.Println("yaml_insert_token", "pos:", pos, "typ:", token.typ, "head:", parser.tokens_head, "len:", len(parser.tokens))
+
+ // Check if we can move the queue at the beginning of the buffer.
+ if parser.tokens_head > 0 && len(parser.tokens) == cap(parser.tokens) {
+ if parser.tokens_head != len(parser.tokens) {
+ copy(parser.tokens, parser.tokens[parser.tokens_head:])
+ }
+ parser.tokens = parser.tokens[:len(parser.tokens)-parser.tokens_head]
+ parser.tokens_head = 0
+ }
+ parser.tokens = append(parser.tokens, *token)
+ if pos < 0 {
+ return
+ }
+ copy(parser.tokens[parser.tokens_head+pos+1:], parser.tokens[parser.tokens_head+pos:])
+ parser.tokens[parser.tokens_head+pos] = *token
+}
+
+// Create a new parser object.
+func yaml_parser_initialize(parser *yaml_parser_t) bool {
+ *parser = yaml_parser_t{
+ raw_buffer: make([]byte, 0, input_raw_buffer_size),
+ buffer: make([]byte, 0, input_buffer_size),
+ }
+ return true
+}
+
+// Destroy a parser object.
+func yaml_parser_delete(parser *yaml_parser_t) {
+ *parser = yaml_parser_t{}
+}
+
+// String read handler.
+func yaml_string_read_handler(parser *yaml_parser_t, buffer []byte) (n int, err error) {
+ if parser.input_pos == len(parser.input) {
+ return 0, io.EOF
+ }
+ n = copy(buffer, parser.input[parser.input_pos:])
+ parser.input_pos += n
+ return n, nil
+}
+
+// Reader read handler.
+func yaml_reader_read_handler(parser *yaml_parser_t, buffer []byte) (n int, err error) {
+ return parser.input_reader.Read(buffer)
+}
+
+// Set a string input.
+func yaml_parser_set_input_string(parser *yaml_parser_t, input []byte) {
+ if parser.read_handler != nil {
+ panic("must set the input source only once")
+ }
+ parser.read_handler = yaml_string_read_handler
+ parser.input = input
+ parser.input_pos = 0
+}
+
+// Set a file input.
+func yaml_parser_set_input_reader(parser *yaml_parser_t, r io.Reader) {
+ if parser.read_handler != nil {
+ panic("must set the input source only once")
+ }
+ parser.read_handler = yaml_reader_read_handler
+ parser.input_reader = r
+}
+
+// Set the source encoding.
+func yaml_parser_set_encoding(parser *yaml_parser_t, encoding yaml_encoding_t) {
+ if parser.encoding != yaml_ANY_ENCODING {
+ panic("must set the encoding only once")
+ }
+ parser.encoding = encoding
+}
+
+// Create a new emitter object.
+func yaml_emitter_initialize(emitter *yaml_emitter_t) {
+ *emitter = yaml_emitter_t{
+ buffer: make([]byte, output_buffer_size),
+ raw_buffer: make([]byte, 0, output_raw_buffer_size),
+ states: make([]yaml_emitter_state_t, 0, initial_stack_size),
+ events: make([]yaml_event_t, 0, initial_queue_size),
+ }
+}
+
+// Destroy an emitter object.
+func yaml_emitter_delete(emitter *yaml_emitter_t) {
+ *emitter = yaml_emitter_t{}
+}
+
+// String write handler.
+func yaml_string_write_handler(emitter *yaml_emitter_t, buffer []byte) error {
+ *emitter.output_buffer = append(*emitter.output_buffer, buffer...)
+ return nil
+}
+
+// yaml_writer_write_handler uses emitter.output_writer to write the
+// emitted text.
+func yaml_writer_write_handler(emitter *yaml_emitter_t, buffer []byte) error {
+ _, err := emitter.output_writer.Write(buffer)
+ return err
+}
+
+// Set a string output.
+func yaml_emitter_set_output_string(emitter *yaml_emitter_t, output_buffer *[]byte) {
+ if emitter.write_handler != nil {
+ panic("must set the output target only once")
+ }
+ emitter.write_handler = yaml_string_write_handler
+ emitter.output_buffer = output_buffer
+}
+
+// Set a file output.
+func yaml_emitter_set_output_writer(emitter *yaml_emitter_t, w io.Writer) {
+ if emitter.write_handler != nil {
+ panic("must set the output target only once")
+ }
+ emitter.write_handler = yaml_writer_write_handler
+ emitter.output_writer = w
+}
+
+// Set the output encoding.
+func yaml_emitter_set_encoding(emitter *yaml_emitter_t, encoding yaml_encoding_t) {
+ if emitter.encoding != yaml_ANY_ENCODING {
+ panic("must set the output encoding only once")
+ }
+ emitter.encoding = encoding
+}
+
+// Set the canonical output style.
+func yaml_emitter_set_canonical(emitter *yaml_emitter_t, canonical bool) {
+ emitter.canonical = canonical
+}
+
+//// Set the indentation increment.
+func yaml_emitter_set_indent(emitter *yaml_emitter_t, indent int) {
+ if indent < 2 || indent > 9 {
+ indent = 2
+ }
+ emitter.best_indent = indent
+}
+
+// Set the preferred line width.
+func yaml_emitter_set_width(emitter *yaml_emitter_t, width int) {
+ if width < 0 {
+ width = -1
+ }
+ emitter.best_width = width
+}
+
+// Set if unescaped non-ASCII characters are allowed.
+func yaml_emitter_set_unicode(emitter *yaml_emitter_t, unicode bool) {
+ emitter.unicode = unicode
+}
+
+// Set the preferred line break character.
+func yaml_emitter_set_break(emitter *yaml_emitter_t, line_break yaml_break_t) {
+ emitter.line_break = line_break
+}
+
+///*
+// * Destroy a token object.
+// */
+//
+//YAML_DECLARE(void)
+//yaml_token_delete(yaml_token_t *token)
+//{
+// assert(token); // Non-NULL token object expected.
+//
+// switch (token.type)
+// {
+// case YAML_TAG_DIRECTIVE_TOKEN:
+// yaml_free(token.data.tag_directive.handle);
+// yaml_free(token.data.tag_directive.prefix);
+// break;
+//
+// case YAML_ALIAS_TOKEN:
+// yaml_free(token.data.alias.value);
+// break;
+//
+// case YAML_ANCHOR_TOKEN:
+// yaml_free(token.data.anchor.value);
+// break;
+//
+// case YAML_TAG_TOKEN:
+// yaml_free(token.data.tag.handle);
+// yaml_free(token.data.tag.suffix);
+// break;
+//
+// case YAML_SCALAR_TOKEN:
+// yaml_free(token.data.scalar.value);
+// break;
+//
+// default:
+// break;
+// }
+//
+// memset(token, 0, sizeof(yaml_token_t));
+//}
+//
+///*
+// * Check if a string is a valid UTF-8 sequence.
+// *
+// * Check 'reader.c' for more details on UTF-8 encoding.
+// */
+//
+//static int
+//yaml_check_utf8(yaml_char_t *start, size_t length)
+//{
+// yaml_char_t *end = start+length;
+// yaml_char_t *pointer = start;
+//
+// while (pointer < end) {
+// unsigned char octet;
+// unsigned int width;
+// unsigned int value;
+// size_t k;
+//
+// octet = pointer[0];
+// width = (octet & 0x80) == 0x00 ? 1 :
+// (octet & 0xE0) == 0xC0 ? 2 :
+// (octet & 0xF0) == 0xE0 ? 3 :
+// (octet & 0xF8) == 0xF0 ? 4 : 0;
+// value = (octet & 0x80) == 0x00 ? octet & 0x7F :
+// (octet & 0xE0) == 0xC0 ? octet & 0x1F :
+// (octet & 0xF0) == 0xE0 ? octet & 0x0F :
+// (octet & 0xF8) == 0xF0 ? octet & 0x07 : 0;
+// if (!width) return 0;
+// if (pointer+width > end) return 0;
+// for (k = 1; k < width; k ++) {
+// octet = pointer[k];
+// if ((octet & 0xC0) != 0x80) return 0;
+// value = (value << 6) + (octet & 0x3F);
+// }
+// if (!((width == 1) ||
+// (width == 2 && value >= 0x80) ||
+// (width == 3 && value >= 0x800) ||
+// (width == 4 && value >= 0x10000))) return 0;
+//
+// pointer += width;
+// }
+//
+// return 1;
+//}
+//
+
+// Create STREAM-START.
+func yaml_stream_start_event_initialize(event *yaml_event_t, encoding yaml_encoding_t) {
+ *event = yaml_event_t{
+ typ: yaml_STREAM_START_EVENT,
+ encoding: encoding,
+ }
+}
+
+// Create STREAM-END.
+func yaml_stream_end_event_initialize(event *yaml_event_t) {
+ *event = yaml_event_t{
+ typ: yaml_STREAM_END_EVENT,
+ }
+}
+
+// Create DOCUMENT-START.
+func yaml_document_start_event_initialize(
+ event *yaml_event_t,
+ version_directive *yaml_version_directive_t,
+ tag_directives []yaml_tag_directive_t,
+ implicit bool,
+) {
+ *event = yaml_event_t{
+ typ: yaml_DOCUMENT_START_EVENT,
+ version_directive: version_directive,
+ tag_directives: tag_directives,
+ implicit: implicit,
+ }
+}
+
+// Create DOCUMENT-END.
+func yaml_document_end_event_initialize(event *yaml_event_t, implicit bool) {
+ *event = yaml_event_t{
+ typ: yaml_DOCUMENT_END_EVENT,
+ implicit: implicit,
+ }
+}
+
+///*
+// * Create ALIAS.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_alias_event_initialize(event *yaml_event_t, anchor *yaml_char_t)
+//{
+// mark yaml_mark_t = { 0, 0, 0 }
+// anchor_copy *yaml_char_t = NULL
+//
+// assert(event) // Non-NULL event object is expected.
+// assert(anchor) // Non-NULL anchor is expected.
+//
+// if (!yaml_check_utf8(anchor, strlen((char *)anchor))) return 0
+//
+// anchor_copy = yaml_strdup(anchor)
+// if (!anchor_copy)
+// return 0
+//
+// ALIAS_EVENT_INIT(*event, anchor_copy, mark, mark)
+//
+// return 1
+//}
+
+// Create SCALAR.
+func yaml_scalar_event_initialize(event *yaml_event_t, anchor, tag, value []byte, plain_implicit, quoted_implicit bool, style yaml_scalar_style_t) bool {
+ *event = yaml_event_t{
+ typ: yaml_SCALAR_EVENT,
+ anchor: anchor,
+ tag: tag,
+ value: value,
+ implicit: plain_implicit,
+ quoted_implicit: quoted_implicit,
+ style: yaml_style_t(style),
+ }
+ return true
+}
+
+// Create SEQUENCE-START.
+func yaml_sequence_start_event_initialize(event *yaml_event_t, anchor, tag []byte, implicit bool, style yaml_sequence_style_t) bool {
+ *event = yaml_event_t{
+ typ: yaml_SEQUENCE_START_EVENT,
+ anchor: anchor,
+ tag: tag,
+ implicit: implicit,
+ style: yaml_style_t(style),
+ }
+ return true
+}
+
+// Create SEQUENCE-END.
+func yaml_sequence_end_event_initialize(event *yaml_event_t) bool {
+ *event = yaml_event_t{
+ typ: yaml_SEQUENCE_END_EVENT,
+ }
+ return true
+}
+
+// Create MAPPING-START.
+func yaml_mapping_start_event_initialize(event *yaml_event_t, anchor, tag []byte, implicit bool, style yaml_mapping_style_t) {
+ *event = yaml_event_t{
+ typ: yaml_MAPPING_START_EVENT,
+ anchor: anchor,
+ tag: tag,
+ implicit: implicit,
+ style: yaml_style_t(style),
+ }
+}
+
+// Create MAPPING-END.
+func yaml_mapping_end_event_initialize(event *yaml_event_t) {
+ *event = yaml_event_t{
+ typ: yaml_MAPPING_END_EVENT,
+ }
+}
+
+// Destroy an event object.
+func yaml_event_delete(event *yaml_event_t) {
+ *event = yaml_event_t{}
+}
+
+///*
+// * Create a document object.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_document_initialize(document *yaml_document_t,
+// version_directive *yaml_version_directive_t,
+// tag_directives_start *yaml_tag_directive_t,
+// tag_directives_end *yaml_tag_directive_t,
+// start_implicit int, end_implicit int)
+//{
+// struct {
+// error yaml_error_type_t
+// } context
+// struct {
+// start *yaml_node_t
+// end *yaml_node_t
+// top *yaml_node_t
+// } nodes = { NULL, NULL, NULL }
+// version_directive_copy *yaml_version_directive_t = NULL
+// struct {
+// start *yaml_tag_directive_t
+// end *yaml_tag_directive_t
+// top *yaml_tag_directive_t
+// } tag_directives_copy = { NULL, NULL, NULL }
+// value yaml_tag_directive_t = { NULL, NULL }
+// mark yaml_mark_t = { 0, 0, 0 }
+//
+// assert(document) // Non-NULL document object is expected.
+// assert((tag_directives_start && tag_directives_end) ||
+// (tag_directives_start == tag_directives_end))
+// // Valid tag directives are expected.
+//
+// if (!STACK_INIT(&context, nodes, INITIAL_STACK_SIZE)) goto error
+//
+// if (version_directive) {
+// version_directive_copy = yaml_malloc(sizeof(yaml_version_directive_t))
+// if (!version_directive_copy) goto error
+// version_directive_copy.major = version_directive.major
+// version_directive_copy.minor = version_directive.minor
+// }
+//
+// if (tag_directives_start != tag_directives_end) {
+// tag_directive *yaml_tag_directive_t
+// if (!STACK_INIT(&context, tag_directives_copy, INITIAL_STACK_SIZE))
+// goto error
+// for (tag_directive = tag_directives_start
+// tag_directive != tag_directives_end; tag_directive ++) {
+// assert(tag_directive.handle)
+// assert(tag_directive.prefix)
+// if (!yaml_check_utf8(tag_directive.handle,
+// strlen((char *)tag_directive.handle)))
+// goto error
+// if (!yaml_check_utf8(tag_directive.prefix,
+// strlen((char *)tag_directive.prefix)))
+// goto error
+// value.handle = yaml_strdup(tag_directive.handle)
+// value.prefix = yaml_strdup(tag_directive.prefix)
+// if (!value.handle || !value.prefix) goto error
+// if (!PUSH(&context, tag_directives_copy, value))
+// goto error
+// value.handle = NULL
+// value.prefix = NULL
+// }
+// }
+//
+// DOCUMENT_INIT(*document, nodes.start, nodes.end, version_directive_copy,
+// tag_directives_copy.start, tag_directives_copy.top,
+// start_implicit, end_implicit, mark, mark)
+//
+// return 1
+//
+//error:
+// STACK_DEL(&context, nodes)
+// yaml_free(version_directive_copy)
+// while (!STACK_EMPTY(&context, tag_directives_copy)) {
+// value yaml_tag_directive_t = POP(&context, tag_directives_copy)
+// yaml_free(value.handle)
+// yaml_free(value.prefix)
+// }
+// STACK_DEL(&context, tag_directives_copy)
+// yaml_free(value.handle)
+// yaml_free(value.prefix)
+//
+// return 0
+//}
+//
+///*
+// * Destroy a document object.
+// */
+//
+//YAML_DECLARE(void)
+//yaml_document_delete(document *yaml_document_t)
+//{
+// struct {
+// error yaml_error_type_t
+// } context
+// tag_directive *yaml_tag_directive_t
+//
+// context.error = YAML_NO_ERROR // Eliminate a compiler warning.
+//
+// assert(document) // Non-NULL document object is expected.
+//
+// while (!STACK_EMPTY(&context, document.nodes)) {
+// node yaml_node_t = POP(&context, document.nodes)
+// yaml_free(node.tag)
+// switch (node.type) {
+// case YAML_SCALAR_NODE:
+// yaml_free(node.data.scalar.value)
+// break
+// case YAML_SEQUENCE_NODE:
+// STACK_DEL(&context, node.data.sequence.items)
+// break
+// case YAML_MAPPING_NODE:
+// STACK_DEL(&context, node.data.mapping.pairs)
+// break
+// default:
+// assert(0) // Should not happen.
+// }
+// }
+// STACK_DEL(&context, document.nodes)
+//
+// yaml_free(document.version_directive)
+// for (tag_directive = document.tag_directives.start
+// tag_directive != document.tag_directives.end
+// tag_directive++) {
+// yaml_free(tag_directive.handle)
+// yaml_free(tag_directive.prefix)
+// }
+// yaml_free(document.tag_directives.start)
+//
+// memset(document, 0, sizeof(yaml_document_t))
+//}
+//
+///**
+// * Get a document node.
+// */
+//
+//YAML_DECLARE(yaml_node_t *)
+//yaml_document_get_node(document *yaml_document_t, index int)
+//{
+// assert(document) // Non-NULL document object is expected.
+//
+// if (index > 0 && document.nodes.start + index <= document.nodes.top) {
+// return document.nodes.start + index - 1
+// }
+// return NULL
+//}
+//
+///**
+// * Get the root object.
+// */
+//
+//YAML_DECLARE(yaml_node_t *)
+//yaml_document_get_root_node(document *yaml_document_t)
+//{
+// assert(document) // Non-NULL document object is expected.
+//
+// if (document.nodes.top != document.nodes.start) {
+// return document.nodes.start
+// }
+// return NULL
+//}
+//
+///*
+// * Add a scalar node to a document.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_document_add_scalar(document *yaml_document_t,
+// tag *yaml_char_t, value *yaml_char_t, length int,
+// style yaml_scalar_style_t)
+//{
+// struct {
+// error yaml_error_type_t
+// } context
+// mark yaml_mark_t = { 0, 0, 0 }
+// tag_copy *yaml_char_t = NULL
+// value_copy *yaml_char_t = NULL
+// node yaml_node_t
+//
+// assert(document) // Non-NULL document object is expected.
+// assert(value) // Non-NULL value is expected.
+//
+// if (!tag) {
+// tag = (yaml_char_t *)YAML_DEFAULT_SCALAR_TAG
+// }
+//
+// if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error
+// tag_copy = yaml_strdup(tag)
+// if (!tag_copy) goto error
+//
+// if (length < 0) {
+// length = strlen((char *)value)
+// }
+//
+// if (!yaml_check_utf8(value, length)) goto error
+// value_copy = yaml_malloc(length+1)
+// if (!value_copy) goto error
+// memcpy(value_copy, value, length)
+// value_copy[length] = '\0'
+//
+// SCALAR_NODE_INIT(node, tag_copy, value_copy, length, style, mark, mark)
+// if (!PUSH(&context, document.nodes, node)) goto error
+//
+// return document.nodes.top - document.nodes.start
+//
+//error:
+// yaml_free(tag_copy)
+// yaml_free(value_copy)
+//
+// return 0
+//}
+//
+///*
+// * Add a sequence node to a document.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_document_add_sequence(document *yaml_document_t,
+// tag *yaml_char_t, style yaml_sequence_style_t)
+//{
+// struct {
+// error yaml_error_type_t
+// } context
+// mark yaml_mark_t = { 0, 0, 0 }
+// tag_copy *yaml_char_t = NULL
+// struct {
+// start *yaml_node_item_t
+// end *yaml_node_item_t
+// top *yaml_node_item_t
+// } items = { NULL, NULL, NULL }
+// node yaml_node_t
+//
+// assert(document) // Non-NULL document object is expected.
+//
+// if (!tag) {
+// tag = (yaml_char_t *)YAML_DEFAULT_SEQUENCE_TAG
+// }
+//
+// if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error
+// tag_copy = yaml_strdup(tag)
+// if (!tag_copy) goto error
+//
+// if (!STACK_INIT(&context, items, INITIAL_STACK_SIZE)) goto error
+//
+// SEQUENCE_NODE_INIT(node, tag_copy, items.start, items.end,
+// style, mark, mark)
+// if (!PUSH(&context, document.nodes, node)) goto error
+//
+// return document.nodes.top - document.nodes.start
+//
+//error:
+// STACK_DEL(&context, items)
+// yaml_free(tag_copy)
+//
+// return 0
+//}
+//
+///*
+// * Add a mapping node to a document.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_document_add_mapping(document *yaml_document_t,
+// tag *yaml_char_t, style yaml_mapping_style_t)
+//{
+// struct {
+// error yaml_error_type_t
+// } context
+// mark yaml_mark_t = { 0, 0, 0 }
+// tag_copy *yaml_char_t = NULL
+// struct {
+// start *yaml_node_pair_t
+// end *yaml_node_pair_t
+// top *yaml_node_pair_t
+// } pairs = { NULL, NULL, NULL }
+// node yaml_node_t
+//
+// assert(document) // Non-NULL document object is expected.
+//
+// if (!tag) {
+// tag = (yaml_char_t *)YAML_DEFAULT_MAPPING_TAG
+// }
+//
+// if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error
+// tag_copy = yaml_strdup(tag)
+// if (!tag_copy) goto error
+//
+// if (!STACK_INIT(&context, pairs, INITIAL_STACK_SIZE)) goto error
+//
+// MAPPING_NODE_INIT(node, tag_copy, pairs.start, pairs.end,
+// style, mark, mark)
+// if (!PUSH(&context, document.nodes, node)) goto error
+//
+// return document.nodes.top - document.nodes.start
+//
+//error:
+// STACK_DEL(&context, pairs)
+// yaml_free(tag_copy)
+//
+// return 0
+//}
+//
+///*
+// * Append an item to a sequence node.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_document_append_sequence_item(document *yaml_document_t,
+// sequence int, item int)
+//{
+// struct {
+// error yaml_error_type_t
+// } context
+//
+// assert(document) // Non-NULL document is required.
+// assert(sequence > 0
+// && document.nodes.start + sequence <= document.nodes.top)
+// // Valid sequence id is required.
+// assert(document.nodes.start[sequence-1].type == YAML_SEQUENCE_NODE)
+// // A sequence node is required.
+// assert(item > 0 && document.nodes.start + item <= document.nodes.top)
+// // Valid item id is required.
+//
+// if (!PUSH(&context,
+// document.nodes.start[sequence-1].data.sequence.items, item))
+// return 0
+//
+// return 1
+//}
+//
+///*
+// * Append a pair of a key and a value to a mapping node.
+// */
+//
+//YAML_DECLARE(int)
+//yaml_document_append_mapping_pair(document *yaml_document_t,
+// mapping int, key int, value int)
+//{
+// struct {
+// error yaml_error_type_t
+// } context
+//
+// pair yaml_node_pair_t
+//
+// assert(document) // Non-NULL document is required.
+// assert(mapping > 0
+// && document.nodes.start + mapping <= document.nodes.top)
+// // Valid mapping id is required.
+// assert(document.nodes.start[mapping-1].type == YAML_MAPPING_NODE)
+// // A mapping node is required.
+// assert(key > 0 && document.nodes.start + key <= document.nodes.top)
+// // Valid key id is required.
+// assert(value > 0 && document.nodes.start + value <= document.nodes.top)
+// // Valid value id is required.
+//
+// pair.key = key
+// pair.value = value
+//
+// if (!PUSH(&context,
+// document.nodes.start[mapping-1].data.mapping.pairs, pair))
+// return 0
+//
+// return 1
+//}
+//
+//
diff --git a/vendor/gopkg.in/yaml.v2/decode.go b/vendor/gopkg.in/yaml.v2/decode.go
new file mode 100644
index 0000000..e4e56e2
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/decode.go
@@ -0,0 +1,775 @@
+package yaml
+
+import (
+ "encoding"
+ "encoding/base64"
+ "fmt"
+ "io"
+ "math"
+ "reflect"
+ "strconv"
+ "time"
+)
+
+const (
+ documentNode = 1 << iota
+ mappingNode
+ sequenceNode
+ scalarNode
+ aliasNode
+)
+
+type node struct {
+ kind int
+ line, column int
+ tag string
+ // For an alias node, alias holds the resolved alias.
+ alias *node
+ value string
+ implicit bool
+ children []*node
+ anchors map[string]*node
+}
+
+// ----------------------------------------------------------------------------
+// Parser, produces a node tree out of a libyaml event stream.
+
+type parser struct {
+ parser yaml_parser_t
+ event yaml_event_t
+ doc *node
+ doneInit bool
+}
+
+func newParser(b []byte) *parser {
+ p := parser{}
+ if !yaml_parser_initialize(&p.parser) {
+ panic("failed to initialize YAML emitter")
+ }
+ if len(b) == 0 {
+ b = []byte{'\n'}
+ }
+ yaml_parser_set_input_string(&p.parser, b)
+ return &p
+}
+
+func newParserFromReader(r io.Reader) *parser {
+ p := parser{}
+ if !yaml_parser_initialize(&p.parser) {
+ panic("failed to initialize YAML emitter")
+ }
+ yaml_parser_set_input_reader(&p.parser, r)
+ return &p
+}
+
+func (p *parser) init() {
+ if p.doneInit {
+ return
+ }
+ p.expect(yaml_STREAM_START_EVENT)
+ p.doneInit = true
+}
+
+func (p *parser) destroy() {
+ if p.event.typ != yaml_NO_EVENT {
+ yaml_event_delete(&p.event)
+ }
+ yaml_parser_delete(&p.parser)
+}
+
+// expect consumes an event from the event stream and
+// checks that it's of the expected type.
+func (p *parser) expect(e yaml_event_type_t) {
+ if p.event.typ == yaml_NO_EVENT {
+ if !yaml_parser_parse(&p.parser, &p.event) {
+ p.fail()
+ }
+ }
+ if p.event.typ == yaml_STREAM_END_EVENT {
+ failf("attempted to go past the end of stream; corrupted value?")
+ }
+ if p.event.typ != e {
+ p.parser.problem = fmt.Sprintf("expected %s event but got %s", e, p.event.typ)
+ p.fail()
+ }
+ yaml_event_delete(&p.event)
+ p.event.typ = yaml_NO_EVENT
+}
+
+// peek peeks at the next event in the event stream,
+// puts the results into p.event and returns the event type.
+func (p *parser) peek() yaml_event_type_t {
+ if p.event.typ != yaml_NO_EVENT {
+ return p.event.typ
+ }
+ if !yaml_parser_parse(&p.parser, &p.event) {
+ p.fail()
+ }
+ return p.event.typ
+}
+
+func (p *parser) fail() {
+ var where string
+ var line int
+ if p.parser.problem_mark.line != 0 {
+ line = p.parser.problem_mark.line
+ // Scanner errors don't iterate line before returning error
+ if p.parser.error == yaml_SCANNER_ERROR {
+ line++
+ }
+ } else if p.parser.context_mark.line != 0 {
+ line = p.parser.context_mark.line
+ }
+ if line != 0 {
+ where = "line " + strconv.Itoa(line) + ": "
+ }
+ var msg string
+ if len(p.parser.problem) > 0 {
+ msg = p.parser.problem
+ } else {
+ msg = "unknown problem parsing YAML content"
+ }
+ failf("%s%s", where, msg)
+}
+
+func (p *parser) anchor(n *node, anchor []byte) {
+ if anchor != nil {
+ p.doc.anchors[string(anchor)] = n
+ }
+}
+
+func (p *parser) parse() *node {
+ p.init()
+ switch p.peek() {
+ case yaml_SCALAR_EVENT:
+ return p.scalar()
+ case yaml_ALIAS_EVENT:
+ return p.alias()
+ case yaml_MAPPING_START_EVENT:
+ return p.mapping()
+ case yaml_SEQUENCE_START_EVENT:
+ return p.sequence()
+ case yaml_DOCUMENT_START_EVENT:
+ return p.document()
+ case yaml_STREAM_END_EVENT:
+ // Happens when attempting to decode an empty buffer.
+ return nil
+ default:
+ panic("attempted to parse unknown event: " + p.event.typ.String())
+ }
+}
+
+func (p *parser) node(kind int) *node {
+ return &node{
+ kind: kind,
+ line: p.event.start_mark.line,
+ column: p.event.start_mark.column,
+ }
+}
+
+func (p *parser) document() *node {
+ n := p.node(documentNode)
+ n.anchors = make(map[string]*node)
+ p.doc = n
+ p.expect(yaml_DOCUMENT_START_EVENT)
+ n.children = append(n.children, p.parse())
+ p.expect(yaml_DOCUMENT_END_EVENT)
+ return n
+}
+
+func (p *parser) alias() *node {
+ n := p.node(aliasNode)
+ n.value = string(p.event.anchor)
+ n.alias = p.doc.anchors[n.value]
+ if n.alias == nil {
+ failf("unknown anchor '%s' referenced", n.value)
+ }
+ p.expect(yaml_ALIAS_EVENT)
+ return n
+}
+
+func (p *parser) scalar() *node {
+ n := p.node(scalarNode)
+ n.value = string(p.event.value)
+ n.tag = string(p.event.tag)
+ n.implicit = p.event.implicit
+ p.anchor(n, p.event.anchor)
+ p.expect(yaml_SCALAR_EVENT)
+ return n
+}
+
+func (p *parser) sequence() *node {
+ n := p.node(sequenceNode)
+ p.anchor(n, p.event.anchor)
+ p.expect(yaml_SEQUENCE_START_EVENT)
+ for p.peek() != yaml_SEQUENCE_END_EVENT {
+ n.children = append(n.children, p.parse())
+ }
+ p.expect(yaml_SEQUENCE_END_EVENT)
+ return n
+}
+
+func (p *parser) mapping() *node {
+ n := p.node(mappingNode)
+ p.anchor(n, p.event.anchor)
+ p.expect(yaml_MAPPING_START_EVENT)
+ for p.peek() != yaml_MAPPING_END_EVENT {
+ n.children = append(n.children, p.parse(), p.parse())
+ }
+ p.expect(yaml_MAPPING_END_EVENT)
+ return n
+}
+
+// ----------------------------------------------------------------------------
+// Decoder, unmarshals a node into a provided value.
+
+type decoder struct {
+ doc *node
+ aliases map[*node]bool
+ mapType reflect.Type
+ terrors []string
+ strict bool
+}
+
+var (
+ mapItemType = reflect.TypeOf(MapItem{})
+ durationType = reflect.TypeOf(time.Duration(0))
+ defaultMapType = reflect.TypeOf(map[interface{}]interface{}{})
+ ifaceType = defaultMapType.Elem()
+ timeType = reflect.TypeOf(time.Time{})
+ ptrTimeType = reflect.TypeOf(&time.Time{})
+)
+
+func newDecoder(strict bool) *decoder {
+ d := &decoder{mapType: defaultMapType, strict: strict}
+ d.aliases = make(map[*node]bool)
+ return d
+}
+
+func (d *decoder) terror(n *node, tag string, out reflect.Value) {
+ if n.tag != "" {
+ tag = n.tag
+ }
+ value := n.value
+ if tag != yaml_SEQ_TAG && tag != yaml_MAP_TAG {
+ if len(value) > 10 {
+ value = " `" + value[:7] + "...`"
+ } else {
+ value = " `" + value + "`"
+ }
+ }
+ d.terrors = append(d.terrors, fmt.Sprintf("line %d: cannot unmarshal %s%s into %s", n.line+1, shortTag(tag), value, out.Type()))
+}
+
+func (d *decoder) callUnmarshaler(n *node, u Unmarshaler) (good bool) {
+ terrlen := len(d.terrors)
+ err := u.UnmarshalYAML(func(v interface{}) (err error) {
+ defer handleErr(&err)
+ d.unmarshal(n, reflect.ValueOf(v))
+ if len(d.terrors) > terrlen {
+ issues := d.terrors[terrlen:]
+ d.terrors = d.terrors[:terrlen]
+ return &TypeError{issues}
+ }
+ return nil
+ })
+ if e, ok := err.(*TypeError); ok {
+ d.terrors = append(d.terrors, e.Errors...)
+ return false
+ }
+ if err != nil {
+ fail(err)
+ }
+ return true
+}
+
+// d.prepare initializes and dereferences pointers and calls UnmarshalYAML
+// if a value is found to implement it.
+// It returns the initialized and dereferenced out value, whether
+// unmarshalling was already done by UnmarshalYAML, and if so whether
+// its types unmarshalled appropriately.
+//
+// If n holds a null value, prepare returns before doing anything.
+func (d *decoder) prepare(n *node, out reflect.Value) (newout reflect.Value, unmarshaled, good bool) {
+ if n.tag == yaml_NULL_TAG || n.kind == scalarNode && n.tag == "" && (n.value == "null" || n.value == "~" || n.value == "" && n.implicit) {
+ return out, false, false
+ }
+ again := true
+ for again {
+ again = false
+ if out.Kind() == reflect.Ptr {
+ if out.IsNil() {
+ out.Set(reflect.New(out.Type().Elem()))
+ }
+ out = out.Elem()
+ again = true
+ }
+ if out.CanAddr() {
+ if u, ok := out.Addr().Interface().(Unmarshaler); ok {
+ good = d.callUnmarshaler(n, u)
+ return out, true, good
+ }
+ }
+ }
+ return out, false, false
+}
+
+func (d *decoder) unmarshal(n *node, out reflect.Value) (good bool) {
+ switch n.kind {
+ case documentNode:
+ return d.document(n, out)
+ case aliasNode:
+ return d.alias(n, out)
+ }
+ out, unmarshaled, good := d.prepare(n, out)
+ if unmarshaled {
+ return good
+ }
+ switch n.kind {
+ case scalarNode:
+ good = d.scalar(n, out)
+ case mappingNode:
+ good = d.mapping(n, out)
+ case sequenceNode:
+ good = d.sequence(n, out)
+ default:
+ panic("internal error: unknown node kind: " + strconv.Itoa(n.kind))
+ }
+ return good
+}
+
+func (d *decoder) document(n *node, out reflect.Value) (good bool) {
+ if len(n.children) == 1 {
+ d.doc = n
+ d.unmarshal(n.children[0], out)
+ return true
+ }
+ return false
+}
+
+func (d *decoder) alias(n *node, out reflect.Value) (good bool) {
+ if d.aliases[n] {
+ // TODO this could actually be allowed in some circumstances.
+ failf("anchor '%s' value contains itself", n.value)
+ }
+ d.aliases[n] = true
+ good = d.unmarshal(n.alias, out)
+ delete(d.aliases, n)
+ return good
+}
+
+var zeroValue reflect.Value
+
+func resetMap(out reflect.Value) {
+ for _, k := range out.MapKeys() {
+ out.SetMapIndex(k, zeroValue)
+ }
+}
+
+func (d *decoder) scalar(n *node, out reflect.Value) bool {
+ var tag string
+ var resolved interface{}
+ if n.tag == "" && !n.implicit {
+ tag = yaml_STR_TAG
+ resolved = n.value
+ } else {
+ tag, resolved = resolve(n.tag, n.value)
+ if tag == yaml_BINARY_TAG {
+ data, err := base64.StdEncoding.DecodeString(resolved.(string))
+ if err != nil {
+ failf("!!binary value contains invalid base64 data")
+ }
+ resolved = string(data)
+ }
+ }
+ if resolved == nil {
+ if out.Kind() == reflect.Map && !out.CanAddr() {
+ resetMap(out)
+ } else {
+ out.Set(reflect.Zero(out.Type()))
+ }
+ return true
+ }
+ if resolvedv := reflect.ValueOf(resolved); out.Type() == resolvedv.Type() {
+ // We've resolved to exactly the type we want, so use that.
+ out.Set(resolvedv)
+ return true
+ }
+ // Perhaps we can use the value as a TextUnmarshaler to
+ // set its value.
+ if out.CanAddr() {
+ u, ok := out.Addr().Interface().(encoding.TextUnmarshaler)
+ if ok {
+ var text []byte
+ if tag == yaml_BINARY_TAG {
+ text = []byte(resolved.(string))
+ } else {
+ // We let any value be unmarshaled into TextUnmarshaler.
+ // That might be more lax than we'd like, but the
+ // TextUnmarshaler itself should bowl out any dubious values.
+ text = []byte(n.value)
+ }
+ err := u.UnmarshalText(text)
+ if err != nil {
+ fail(err)
+ }
+ return true
+ }
+ }
+ switch out.Kind() {
+ case reflect.String:
+ if tag == yaml_BINARY_TAG {
+ out.SetString(resolved.(string))
+ return true
+ }
+ if resolved != nil {
+ out.SetString(n.value)
+ return true
+ }
+ case reflect.Interface:
+ if resolved == nil {
+ out.Set(reflect.Zero(out.Type()))
+ } else if tag == yaml_TIMESTAMP_TAG {
+ // It looks like a timestamp but for backward compatibility
+ // reasons we set it as a string, so that code that unmarshals
+ // timestamp-like values into interface{} will continue to
+ // see a string and not a time.Time.
+ // TODO(v3) Drop this.
+ out.Set(reflect.ValueOf(n.value))
+ } else {
+ out.Set(reflect.ValueOf(resolved))
+ }
+ return true
+ case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+ switch resolved := resolved.(type) {
+ case int:
+ if !out.OverflowInt(int64(resolved)) {
+ out.SetInt(int64(resolved))
+ return true
+ }
+ case int64:
+ if !out.OverflowInt(resolved) {
+ out.SetInt(resolved)
+ return true
+ }
+ case uint64:
+ if resolved <= math.MaxInt64 && !out.OverflowInt(int64(resolved)) {
+ out.SetInt(int64(resolved))
+ return true
+ }
+ case float64:
+ if resolved <= math.MaxInt64 && !out.OverflowInt(int64(resolved)) {
+ out.SetInt(int64(resolved))
+ return true
+ }
+ case string:
+ if out.Type() == durationType {
+ d, err := time.ParseDuration(resolved)
+ if err == nil {
+ out.SetInt(int64(d))
+ return true
+ }
+ }
+ }
+ case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+ switch resolved := resolved.(type) {
+ case int:
+ if resolved >= 0 && !out.OverflowUint(uint64(resolved)) {
+ out.SetUint(uint64(resolved))
+ return true
+ }
+ case int64:
+ if resolved >= 0 && !out.OverflowUint(uint64(resolved)) {
+ out.SetUint(uint64(resolved))
+ return true
+ }
+ case uint64:
+ if !out.OverflowUint(uint64(resolved)) {
+ out.SetUint(uint64(resolved))
+ return true
+ }
+ case float64:
+ if resolved <= math.MaxUint64 && !out.OverflowUint(uint64(resolved)) {
+ out.SetUint(uint64(resolved))
+ return true
+ }
+ }
+ case reflect.Bool:
+ switch resolved := resolved.(type) {
+ case bool:
+ out.SetBool(resolved)
+ return true
+ }
+ case reflect.Float32, reflect.Float64:
+ switch resolved := resolved.(type) {
+ case int:
+ out.SetFloat(float64(resolved))
+ return true
+ case int64:
+ out.SetFloat(float64(resolved))
+ return true
+ case uint64:
+ out.SetFloat(float64(resolved))
+ return true
+ case float64:
+ out.SetFloat(resolved)
+ return true
+ }
+ case reflect.Struct:
+ if resolvedv := reflect.ValueOf(resolved); out.Type() == resolvedv.Type() {
+ out.Set(resolvedv)
+ return true
+ }
+ case reflect.Ptr:
+ if out.Type().Elem() == reflect.TypeOf(resolved) {
+ // TODO DOes this make sense? When is out a Ptr except when decoding a nil value?
+ elem := reflect.New(out.Type().Elem())
+ elem.Elem().Set(reflect.ValueOf(resolved))
+ out.Set(elem)
+ return true
+ }
+ }
+ d.terror(n, tag, out)
+ return false
+}
+
+func settableValueOf(i interface{}) reflect.Value {
+ v := reflect.ValueOf(i)
+ sv := reflect.New(v.Type()).Elem()
+ sv.Set(v)
+ return sv
+}
+
+func (d *decoder) sequence(n *node, out reflect.Value) (good bool) {
+ l := len(n.children)
+
+ var iface reflect.Value
+ switch out.Kind() {
+ case reflect.Slice:
+ out.Set(reflect.MakeSlice(out.Type(), l, l))
+ case reflect.Array:
+ if l != out.Len() {
+ failf("invalid array: want %d elements but got %d", out.Len(), l)
+ }
+ case reflect.Interface:
+ // No type hints. Will have to use a generic sequence.
+ iface = out
+ out = settableValueOf(make([]interface{}, l))
+ default:
+ d.terror(n, yaml_SEQ_TAG, out)
+ return false
+ }
+ et := out.Type().Elem()
+
+ j := 0
+ for i := 0; i < l; i++ {
+ e := reflect.New(et).Elem()
+ if ok := d.unmarshal(n.children[i], e); ok {
+ out.Index(j).Set(e)
+ j++
+ }
+ }
+ if out.Kind() != reflect.Array {
+ out.Set(out.Slice(0, j))
+ }
+ if iface.IsValid() {
+ iface.Set(out)
+ }
+ return true
+}
+
+func (d *decoder) mapping(n *node, out reflect.Value) (good bool) {
+ switch out.Kind() {
+ case reflect.Struct:
+ return d.mappingStruct(n, out)
+ case reflect.Slice:
+ return d.mappingSlice(n, out)
+ case reflect.Map:
+ // okay
+ case reflect.Interface:
+ if d.mapType.Kind() == reflect.Map {
+ iface := out
+ out = reflect.MakeMap(d.mapType)
+ iface.Set(out)
+ } else {
+ slicev := reflect.New(d.mapType).Elem()
+ if !d.mappingSlice(n, slicev) {
+ return false
+ }
+ out.Set(slicev)
+ return true
+ }
+ default:
+ d.terror(n, yaml_MAP_TAG, out)
+ return false
+ }
+ outt := out.Type()
+ kt := outt.Key()
+ et := outt.Elem()
+
+ mapType := d.mapType
+ if outt.Key() == ifaceType && outt.Elem() == ifaceType {
+ d.mapType = outt
+ }
+
+ if out.IsNil() {
+ out.Set(reflect.MakeMap(outt))
+ }
+ l := len(n.children)
+ for i := 0; i < l; i += 2 {
+ if isMerge(n.children[i]) {
+ d.merge(n.children[i+1], out)
+ continue
+ }
+ k := reflect.New(kt).Elem()
+ if d.unmarshal(n.children[i], k) {
+ kkind := k.Kind()
+ if kkind == reflect.Interface {
+ kkind = k.Elem().Kind()
+ }
+ if kkind == reflect.Map || kkind == reflect.Slice {
+ failf("invalid map key: %#v", k.Interface())
+ }
+ e := reflect.New(et).Elem()
+ if d.unmarshal(n.children[i+1], e) {
+ d.setMapIndex(n.children[i+1], out, k, e)
+ }
+ }
+ }
+ d.mapType = mapType
+ return true
+}
+
+func (d *decoder) setMapIndex(n *node, out, k, v reflect.Value) {
+ if d.strict && out.MapIndex(k) != zeroValue {
+ d.terrors = append(d.terrors, fmt.Sprintf("line %d: key %#v already set in map", n.line+1, k.Interface()))
+ return
+ }
+ out.SetMapIndex(k, v)
+}
+
+func (d *decoder) mappingSlice(n *node, out reflect.Value) (good bool) {
+ outt := out.Type()
+ if outt.Elem() != mapItemType {
+ d.terror(n, yaml_MAP_TAG, out)
+ return false
+ }
+
+ mapType := d.mapType
+ d.mapType = outt
+
+ var slice []MapItem
+ var l = len(n.children)
+ for i := 0; i < l; i += 2 {
+ if isMerge(n.children[i]) {
+ d.merge(n.children[i+1], out)
+ continue
+ }
+ item := MapItem{}
+ k := reflect.ValueOf(&item.Key).Elem()
+ if d.unmarshal(n.children[i], k) {
+ v := reflect.ValueOf(&item.Value).Elem()
+ if d.unmarshal(n.children[i+1], v) {
+ slice = append(slice, item)
+ }
+ }
+ }
+ out.Set(reflect.ValueOf(slice))
+ d.mapType = mapType
+ return true
+}
+
+func (d *decoder) mappingStruct(n *node, out reflect.Value) (good bool) {
+ sinfo, err := getStructInfo(out.Type())
+ if err != nil {
+ panic(err)
+ }
+ name := settableValueOf("")
+ l := len(n.children)
+
+ var inlineMap reflect.Value
+ var elemType reflect.Type
+ if sinfo.InlineMap != -1 {
+ inlineMap = out.Field(sinfo.InlineMap)
+ inlineMap.Set(reflect.New(inlineMap.Type()).Elem())
+ elemType = inlineMap.Type().Elem()
+ }
+
+ var doneFields []bool
+ if d.strict {
+ doneFields = make([]bool, len(sinfo.FieldsList))
+ }
+ for i := 0; i < l; i += 2 {
+ ni := n.children[i]
+ if isMerge(ni) {
+ d.merge(n.children[i+1], out)
+ continue
+ }
+ if !d.unmarshal(ni, name) {
+ continue
+ }
+ if info, ok := sinfo.FieldsMap[name.String()]; ok {
+ if d.strict {
+ if doneFields[info.Id] {
+ d.terrors = append(d.terrors, fmt.Sprintf("line %d: field %s already set in type %s", ni.line+1, name.String(), out.Type()))
+ continue
+ }
+ doneFields[info.Id] = true
+ }
+ var field reflect.Value
+ if info.Inline == nil {
+ field = out.Field(info.Num)
+ } else {
+ field = out.FieldByIndex(info.Inline)
+ }
+ d.unmarshal(n.children[i+1], field)
+ } else if sinfo.InlineMap != -1 {
+ if inlineMap.IsNil() {
+ inlineMap.Set(reflect.MakeMap(inlineMap.Type()))
+ }
+ value := reflect.New(elemType).Elem()
+ d.unmarshal(n.children[i+1], value)
+ d.setMapIndex(n.children[i+1], inlineMap, name, value)
+ } else if d.strict {
+ d.terrors = append(d.terrors, fmt.Sprintf("line %d: field %s not found in type %s", ni.line+1, name.String(), out.Type()))
+ }
+ }
+ return true
+}
+
+func failWantMap() {
+ failf("map merge requires map or sequence of maps as the value")
+}
+
+func (d *decoder) merge(n *node, out reflect.Value) {
+ switch n.kind {
+ case mappingNode:
+ d.unmarshal(n, out)
+ case aliasNode:
+ an, ok := d.doc.anchors[n.value]
+ if ok && an.kind != mappingNode {
+ failWantMap()
+ }
+ d.unmarshal(n, out)
+ case sequenceNode:
+ // Step backwards as earlier nodes take precedence.
+ for i := len(n.children) - 1; i >= 0; i-- {
+ ni := n.children[i]
+ if ni.kind == aliasNode {
+ an, ok := d.doc.anchors[ni.value]
+ if ok && an.kind != mappingNode {
+ failWantMap()
+ }
+ } else if ni.kind != mappingNode {
+ failWantMap()
+ }
+ d.unmarshal(ni, out)
+ }
+ default:
+ failWantMap()
+ }
+}
+
+func isMerge(n *node) bool {
+ return n.kind == scalarNode && n.value == "<<" && (n.implicit == true || n.tag == yaml_MERGE_TAG)
+}
diff --git a/vendor/gopkg.in/yaml.v2/emitterc.go b/vendor/gopkg.in/yaml.v2/emitterc.go
new file mode 100644
index 0000000..a1c2cc5
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/emitterc.go
@@ -0,0 +1,1685 @@
+package yaml
+
+import (
+ "bytes"
+ "fmt"
+)
+
+// Flush the buffer if needed.
+func flush(emitter *yaml_emitter_t) bool {
+ if emitter.buffer_pos+5 >= len(emitter.buffer) {
+ return yaml_emitter_flush(emitter)
+ }
+ return true
+}
+
+// Put a character to the output buffer.
+func put(emitter *yaml_emitter_t, value byte) bool {
+ if emitter.buffer_pos+5 >= len(emitter.buffer) && !yaml_emitter_flush(emitter) {
+ return false
+ }
+ emitter.buffer[emitter.buffer_pos] = value
+ emitter.buffer_pos++
+ emitter.column++
+ return true
+}
+
+// Put a line break to the output buffer.
+func put_break(emitter *yaml_emitter_t) bool {
+ if emitter.buffer_pos+5 >= len(emitter.buffer) && !yaml_emitter_flush(emitter) {
+ return false
+ }
+ switch emitter.line_break {
+ case yaml_CR_BREAK:
+ emitter.buffer[emitter.buffer_pos] = '\r'
+ emitter.buffer_pos += 1
+ case yaml_LN_BREAK:
+ emitter.buffer[emitter.buffer_pos] = '\n'
+ emitter.buffer_pos += 1
+ case yaml_CRLN_BREAK:
+ emitter.buffer[emitter.buffer_pos+0] = '\r'
+ emitter.buffer[emitter.buffer_pos+1] = '\n'
+ emitter.buffer_pos += 2
+ default:
+ panic("unknown line break setting")
+ }
+ emitter.column = 0
+ emitter.line++
+ return true
+}
+
+// Copy a character from a string into buffer.
+func write(emitter *yaml_emitter_t, s []byte, i *int) bool {
+ if emitter.buffer_pos+5 >= len(emitter.buffer) && !yaml_emitter_flush(emitter) {
+ return false
+ }
+ p := emitter.buffer_pos
+ w := width(s[*i])
+ switch w {
+ case 4:
+ emitter.buffer[p+3] = s[*i+3]
+ fallthrough
+ case 3:
+ emitter.buffer[p+2] = s[*i+2]
+ fallthrough
+ case 2:
+ emitter.buffer[p+1] = s[*i+1]
+ fallthrough
+ case 1:
+ emitter.buffer[p+0] = s[*i+0]
+ default:
+ panic("unknown character width")
+ }
+ emitter.column++
+ emitter.buffer_pos += w
+ *i += w
+ return true
+}
+
+// Write a whole string into buffer.
+func write_all(emitter *yaml_emitter_t, s []byte) bool {
+ for i := 0; i < len(s); {
+ if !write(emitter, s, &i) {
+ return false
+ }
+ }
+ return true
+}
+
+// Copy a line break character from a string into buffer.
+func write_break(emitter *yaml_emitter_t, s []byte, i *int) bool {
+ if s[*i] == '\n' {
+ if !put_break(emitter) {
+ return false
+ }
+ *i++
+ } else {
+ if !write(emitter, s, i) {
+ return false
+ }
+ emitter.column = 0
+ emitter.line++
+ }
+ return true
+}
+
+// Set an emitter error and return false.
+func yaml_emitter_set_emitter_error(emitter *yaml_emitter_t, problem string) bool {
+ emitter.error = yaml_EMITTER_ERROR
+ emitter.problem = problem
+ return false
+}
+
+// Emit an event.
+func yaml_emitter_emit(emitter *yaml_emitter_t, event *yaml_event_t) bool {
+ emitter.events = append(emitter.events, *event)
+ for !yaml_emitter_need_more_events(emitter) {
+ event := &emitter.events[emitter.events_head]
+ if !yaml_emitter_analyze_event(emitter, event) {
+ return false
+ }
+ if !yaml_emitter_state_machine(emitter, event) {
+ return false
+ }
+ yaml_event_delete(event)
+ emitter.events_head++
+ }
+ return true
+}
+
+// Check if we need to accumulate more events before emitting.
+//
+// We accumulate extra
+// - 1 event for DOCUMENT-START
+// - 2 events for SEQUENCE-START
+// - 3 events for MAPPING-START
+//
+func yaml_emitter_need_more_events(emitter *yaml_emitter_t) bool {
+ if emitter.events_head == len(emitter.events) {
+ return true
+ }
+ var accumulate int
+ switch emitter.events[emitter.events_head].typ {
+ case yaml_DOCUMENT_START_EVENT:
+ accumulate = 1
+ break
+ case yaml_SEQUENCE_START_EVENT:
+ accumulate = 2
+ break
+ case yaml_MAPPING_START_EVENT:
+ accumulate = 3
+ break
+ default:
+ return false
+ }
+ if len(emitter.events)-emitter.events_head > accumulate {
+ return false
+ }
+ var level int
+ for i := emitter.events_head; i < len(emitter.events); i++ {
+ switch emitter.events[i].typ {
+ case yaml_STREAM_START_EVENT, yaml_DOCUMENT_START_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT:
+ level++
+ case yaml_STREAM_END_EVENT, yaml_DOCUMENT_END_EVENT, yaml_SEQUENCE_END_EVENT, yaml_MAPPING_END_EVENT:
+ level--
+ }
+ if level == 0 {
+ return false
+ }
+ }
+ return true
+}
+
+// Append a directive to the directives stack.
+func yaml_emitter_append_tag_directive(emitter *yaml_emitter_t, value *yaml_tag_directive_t, allow_duplicates bool) bool {
+ for i := 0; i < len(emitter.tag_directives); i++ {
+ if bytes.Equal(value.handle, emitter.tag_directives[i].handle) {
+ if allow_duplicates {
+ return true
+ }
+ return yaml_emitter_set_emitter_error(emitter, "duplicate %TAG directive")
+ }
+ }
+
+ // [Go] Do we actually need to copy this given garbage collection
+ // and the lack of deallocating destructors?
+ tag_copy := yaml_tag_directive_t{
+ handle: make([]byte, len(value.handle)),
+ prefix: make([]byte, len(value.prefix)),
+ }
+ copy(tag_copy.handle, value.handle)
+ copy(tag_copy.prefix, value.prefix)
+ emitter.tag_directives = append(emitter.tag_directives, tag_copy)
+ return true
+}
+
+// Increase the indentation level.
+func yaml_emitter_increase_indent(emitter *yaml_emitter_t, flow, indentless bool) bool {
+ emitter.indents = append(emitter.indents, emitter.indent)
+ if emitter.indent < 0 {
+ if flow {
+ emitter.indent = emitter.best_indent
+ } else {
+ emitter.indent = 0
+ }
+ } else if !indentless {
+ emitter.indent += emitter.best_indent
+ }
+ return true
+}
+
+// State dispatcher.
+func yaml_emitter_state_machine(emitter *yaml_emitter_t, event *yaml_event_t) bool {
+ switch emitter.state {
+ default:
+ case yaml_EMIT_STREAM_START_STATE:
+ return yaml_emitter_emit_stream_start(emitter, event)
+
+ case yaml_EMIT_FIRST_DOCUMENT_START_STATE:
+ return yaml_emitter_emit_document_start(emitter, event, true)
+
+ case yaml_EMIT_DOCUMENT_START_STATE:
+ return yaml_emitter_emit_document_start(emitter, event, false)
+
+ case yaml_EMIT_DOCUMENT_CONTENT_STATE:
+ return yaml_emitter_emit_document_content(emitter, event)
+
+ case yaml_EMIT_DOCUMENT_END_STATE:
+ return yaml_emitter_emit_document_end(emitter, event)
+
+ case yaml_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE:
+ return yaml_emitter_emit_flow_sequence_item(emitter, event, true)
+
+ case yaml_EMIT_FLOW_SEQUENCE_ITEM_STATE:
+ return yaml_emitter_emit_flow_sequence_item(emitter, event, false)
+
+ case yaml_EMIT_FLOW_MAPPING_FIRST_KEY_STATE:
+ return yaml_emitter_emit_flow_mapping_key(emitter, event, true)
+
+ case yaml_EMIT_FLOW_MAPPING_KEY_STATE:
+ return yaml_emitter_emit_flow_mapping_key(emitter, event, false)
+
+ case yaml_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE:
+ return yaml_emitter_emit_flow_mapping_value(emitter, event, true)
+
+ case yaml_EMIT_FLOW_MAPPING_VALUE_STATE:
+ return yaml_emitter_emit_flow_mapping_value(emitter, event, false)
+
+ case yaml_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE:
+ return yaml_emitter_emit_block_sequence_item(emitter, event, true)
+
+ case yaml_EMIT_BLOCK_SEQUENCE_ITEM_STATE:
+ return yaml_emitter_emit_block_sequence_item(emitter, event, false)
+
+ case yaml_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE:
+ return yaml_emitter_emit_block_mapping_key(emitter, event, true)
+
+ case yaml_EMIT_BLOCK_MAPPING_KEY_STATE:
+ return yaml_emitter_emit_block_mapping_key(emitter, event, false)
+
+ case yaml_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE:
+ return yaml_emitter_emit_block_mapping_value(emitter, event, true)
+
+ case yaml_EMIT_BLOCK_MAPPING_VALUE_STATE:
+ return yaml_emitter_emit_block_mapping_value(emitter, event, false)
+
+ case yaml_EMIT_END_STATE:
+ return yaml_emitter_set_emitter_error(emitter, "expected nothing after STREAM-END")
+ }
+ panic("invalid emitter state")
+}
+
+// Expect STREAM-START.
+func yaml_emitter_emit_stream_start(emitter *yaml_emitter_t, event *yaml_event_t) bool {
+ if event.typ != yaml_STREAM_START_EVENT {
+ return yaml_emitter_set_emitter_error(emitter, "expected STREAM-START")
+ }
+ if emitter.encoding == yaml_ANY_ENCODING {
+ emitter.encoding = event.encoding
+ if emitter.encoding == yaml_ANY_ENCODING {
+ emitter.encoding = yaml_UTF8_ENCODING
+ }
+ }
+ if emitter.best_indent < 2 || emitter.best_indent > 9 {
+ emitter.best_indent = 2
+ }
+ if emitter.best_width >= 0 && emitter.best_width <= emitter.best_indent*2 {
+ emitter.best_width = 80
+ }
+ if emitter.best_width < 0 {
+ emitter.best_width = 1<<31 - 1
+ }
+ if emitter.line_break == yaml_ANY_BREAK {
+ emitter.line_break = yaml_LN_BREAK
+ }
+
+ emitter.indent = -1
+ emitter.line = 0
+ emitter.column = 0
+ emitter.whitespace = true
+ emitter.indention = true
+
+ if emitter.encoding != yaml_UTF8_ENCODING {
+ if !yaml_emitter_write_bom(emitter) {
+ return false
+ }
+ }
+ emitter.state = yaml_EMIT_FIRST_DOCUMENT_START_STATE
+ return true
+}
+
+// Expect DOCUMENT-START or STREAM-END.
+func yaml_emitter_emit_document_start(emitter *yaml_emitter_t, event *yaml_event_t, first bool) bool {
+
+ if event.typ == yaml_DOCUMENT_START_EVENT {
+
+ if event.version_directive != nil {
+ if !yaml_emitter_analyze_version_directive(emitter, event.version_directive) {
+ return false
+ }
+ }
+
+ for i := 0; i < len(event.tag_directives); i++ {
+ tag_directive := &event.tag_directives[i]
+ if !yaml_emitter_analyze_tag_directive(emitter, tag_directive) {
+ return false
+ }
+ if !yaml_emitter_append_tag_directive(emitter, tag_directive, false) {
+ return false
+ }
+ }
+
+ for i := 0; i < len(default_tag_directives); i++ {
+ tag_directive := &default_tag_directives[i]
+ if !yaml_emitter_append_tag_directive(emitter, tag_directive, true) {
+ return false
+ }
+ }
+
+ implicit := event.implicit
+ if !first || emitter.canonical {
+ implicit = false
+ }
+
+ if emitter.open_ended && (event.version_directive != nil || len(event.tag_directives) > 0) {
+ if !yaml_emitter_write_indicator(emitter, []byte("..."), true, false, false) {
+ return false
+ }
+ if !yaml_emitter_write_indent(emitter) {
+ return false
+ }
+ }
+
+ if event.version_directive != nil {
+ implicit = false
+ if !yaml_emitter_write_indicator(emitter, []byte("%YAML"), true, false, false) {
+ return false
+ }
+ if !yaml_emitter_write_indicator(emitter, []byte("1.1"), true, false, false) {
+ return false
+ }
+ if !yaml_emitter_write_indent(emitter) {
+ return false
+ }
+ }
+
+ if len(event.tag_directives) > 0 {
+ implicit = false
+ for i := 0; i < len(event.tag_directives); i++ {
+ tag_directive := &event.tag_directives[i]
+ if !yaml_emitter_write_indicator(emitter, []byte("%TAG"), true, false, false) {
+ return false
+ }
+ if !yaml_emitter_write_tag_handle(emitter, tag_directive.handle) {
+ return false
+ }
+ if !yaml_emitter_write_tag_content(emitter, tag_directive.prefix, true) {
+ return false
+ }
+ if !yaml_emitter_write_indent(emitter) {
+ return false
+ }
+ }
+ }
+
+ if yaml_emitter_check_empty_document(emitter) {
+ implicit = false
+ }
+ if !implicit {
+ if !yaml_emitter_write_indent(emitter) {
+ return false
+ }
+ if !yaml_emitter_write_indicator(emitter, []byte("---"), true, false, false) {
+ return false
+ }
+ if emitter.canonical {
+ if !yaml_emitter_write_indent(emitter) {
+ return false
+ }
+ }
+ }
+
+ emitter.state = yaml_EMIT_DOCUMENT_CONTENT_STATE
+ return true
+ }
+
+ if event.typ == yaml_STREAM_END_EVENT {
+ if emitter.open_ended {
+ if !yaml_emitter_write_indicator(emitter, []byte("..."), true, false, false) {
+ return false
+ }
+ if !yaml_emitter_write_indent(emitter) {
+ return false
+ }
+ }
+ if !yaml_emitter_flush(emitter) {
+ return false
+ }
+ emitter.state = yaml_EMIT_END_STATE
+ return true
+ }
+
+ return yaml_emitter_set_emitter_error(emitter, "expected DOCUMENT-START or STREAM-END")
+}
+
+// Expect the root node.
+func yaml_emitter_emit_document_content(emitter *yaml_emitter_t, event *yaml_event_t) bool {
+ emitter.states = append(emitter.states, yaml_EMIT_DOCUMENT_END_STATE)
+ return yaml_emitter_emit_node(emitter, event, true, false, false, false)
+}
+
+// Expect DOCUMENT-END.
+func yaml_emitter_emit_document_end(emitter *yaml_emitter_t, event *yaml_event_t) bool {
+ if event.typ != yaml_DOCUMENT_END_EVENT {
+ return yaml_emitter_set_emitter_error(emitter, "expected DOCUMENT-END")
+ }
+ if !yaml_emitter_write_indent(emitter) {
+ return false
+ }
+ if !event.implicit {
+ // [Go] Allocate the slice elsewhere.
+ if !yaml_emitter_write_indicator(emitter, []byte("..."), true, false, false) {
+ return false
+ }
+ if !yaml_emitter_write_indent(emitter) {
+ return false
+ }
+ }
+ if !yaml_emitter_flush(emitter) {
+ return false
+ }
+ emitter.state = yaml_EMIT_DOCUMENT_START_STATE
+ emitter.tag_directives = emitter.tag_directives[:0]
+ return true
+}
+
+// Expect a flow item node.
+func yaml_emitter_emit_flow_sequence_item(emitter *yaml_emitter_t, event *yaml_event_t, first bool) bool {
+ if first {
+ if !yaml_emitter_write_indicator(emitter, []byte{'['}, true, true, false) {
+ return false
+ }
+ if !yaml_emitter_increase_indent(emitter, true, false) {
+ return false
+ }
+ emitter.flow_level++
+ }
+
+ if event.typ == yaml_SEQUENCE_END_EVENT {
+ emitter.flow_level--
+ emitter.indent = emitter.indents[len(emitter.indents)-1]
+ emitter.indents = emitter.indents[:len(emitter.indents)-1]
+ if emitter.canonical && !first {
+ if !yaml_emitter_write_indicator(emitter, []byte{','}, false, false, false) {
+ return false
+ }
+ if !yaml_emitter_write_indent(emitter) {
+ return false
+ }
+ }
+ if !yaml_emitter_write_indicator(emitter, []byte{']'}, false, false, false) {
+ return false
+ }
+ emitter.state = emitter.states[len(emitter.states)-1]
+ emitter.states = emitter.states[:len(emitter.states)-1]
+
+ return true
+ }
+
+ if !first {
+ if !yaml_emitter_write_indicator(emitter, []byte{','}, false, false, false) {
+ return false
+ }
+ }
+
+ if emitter.canonical || emitter.column > emitter.best_width {
+ if !yaml_emitter_write_indent(emitter) {
+ return false
+ }
+ }
+ emitter.states = append(emitter.states, yaml_EMIT_FLOW_SEQUENCE_ITEM_STATE)
+ return yaml_emitter_emit_node(emitter, event, false, true, false, false)
+}
+
+// Expect a flow key node.
+func yaml_emitter_emit_flow_mapping_key(emitter *yaml_emitter_t, event *yaml_event_t, first bool) bool {
+ if first {
+ if !yaml_emitter_write_indicator(emitter, []byte{'{'}, true, true, false) {
+ return false
+ }
+ if !yaml_emitter_increase_indent(emitter, true, false) {
+ return false
+ }
+ emitter.flow_level++
+ }
+
+ if event.typ == yaml_MAPPING_END_EVENT {
+ emitter.flow_level--
+ emitter.indent = emitter.indents[len(emitter.indents)-1]
+ emitter.indents = emitter.indents[:len(emitter.indents)-1]
+ if emitter.canonical && !first {
+ if !yaml_emitter_write_indicator(emitter, []byte{','}, false, false, false) {
+ return false
+ }
+ if !yaml_emitter_write_indent(emitter) {
+ return false
+ }
+ }
+ if !yaml_emitter_write_indicator(emitter, []byte{'}'}, false, false, false) {
+ return false
+ }
+ emitter.state = emitter.states[len(emitter.states)-1]
+ emitter.states = emitter.states[:len(emitter.states)-1]
+ return true
+ }
+
+ if !first {
+ if !yaml_emitter_write_indicator(emitter, []byte{','}, false, false, false) {
+ return false
+ }
+ }
+ if emitter.canonical || emitter.column > emitter.best_width {
+ if !yaml_emitter_write_indent(emitter) {
+ return false
+ }
+ }
+
+ if !emitter.canonical && yaml_emitter_check_simple_key(emitter) {
+ emitter.states = append(emitter.states, yaml_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE)
+ return yaml_emitter_emit_node(emitter, event, false, false, true, true)
+ }
+ if !yaml_emitter_write_indicator(emitter, []byte{'?'}, true, false, false) {
+ return false
+ }
+ emitter.states = append(emitter.states, yaml_EMIT_FLOW_MAPPING_VALUE_STATE)
+ return yaml_emitter_emit_node(emitter, event, false, false, true, false)
+}
+
+// Expect a flow value node.
+func yaml_emitter_emit_flow_mapping_value(emitter *yaml_emitter_t, event *yaml_event_t, simple bool) bool {
+ if simple {
+ if !yaml_emitter_write_indicator(emitter, []byte{':'}, false, false, false) {
+ return false
+ }
+ } else {
+ if emitter.canonical || emitter.column > emitter.best_width {
+ if !yaml_emitter_write_indent(emitter) {
+ return false
+ }
+ }
+ if !yaml_emitter_write_indicator(emitter, []byte{':'}, true, false, false) {
+ return false
+ }
+ }
+ emitter.states = append(emitter.states, yaml_EMIT_FLOW_MAPPING_KEY_STATE)
+ return yaml_emitter_emit_node(emitter, event, false, false, true, false)
+}
+
+// Expect a block item node.
+func yaml_emitter_emit_block_sequence_item(emitter *yaml_emitter_t, event *yaml_event_t, first bool) bool {
+ if first {
+ if !yaml_emitter_increase_indent(emitter, false, emitter.mapping_context && !emitter.indention) {
+ return false
+ }
+ }
+ if event.typ == yaml_SEQUENCE_END_EVENT {
+ emitter.indent = emitter.indents[len(emitter.indents)-1]
+ emitter.indents = emitter.indents[:len(emitter.indents)-1]
+ emitter.state = emitter.states[len(emitter.states)-1]
+ emitter.states = emitter.states[:len(emitter.states)-1]
+ return true
+ }
+ if !yaml_emitter_write_indent(emitter) {
+ return false
+ }
+ if !yaml_emitter_write_indicator(emitter, []byte{'-'}, true, false, true) {
+ return false
+ }
+ emitter.states = append(emitter.states, yaml_EMIT_BLOCK_SEQUENCE_ITEM_STATE)
+ return yaml_emitter_emit_node(emitter, event, false, true, false, false)
+}
+
+// Expect a block key node.
+func yaml_emitter_emit_block_mapping_key(emitter *yaml_emitter_t, event *yaml_event_t, first bool) bool {
+ if first {
+ if !yaml_emitter_increase_indent(emitter, false, false) {
+ return false
+ }
+ }
+ if event.typ == yaml_MAPPING_END_EVENT {
+ emitter.indent = emitter.indents[len(emitter.indents)-1]
+ emitter.indents = emitter.indents[:len(emitter.indents)-1]
+ emitter.state = emitter.states[len(emitter.states)-1]
+ emitter.states = emitter.states[:len(emitter.states)-1]
+ return true
+ }
+ if !yaml_emitter_write_indent(emitter) {
+ return false
+ }
+ if yaml_emitter_check_simple_key(emitter) {
+ emitter.states = append(emitter.states, yaml_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE)
+ return yaml_emitter_emit_node(emitter, event, false, false, true, true)
+ }
+ if !yaml_emitter_write_indicator(emitter, []byte{'?'}, true, false, true) {
+ return false
+ }
+ emitter.states = append(emitter.states, yaml_EMIT_BLOCK_MAPPING_VALUE_STATE)
+ return yaml_emitter_emit_node(emitter, event, false, false, true, false)
+}
+
+// Expect a block value node.
+func yaml_emitter_emit_block_mapping_value(emitter *yaml_emitter_t, event *yaml_event_t, simple bool) bool {
+ if simple {
+ if !yaml_emitter_write_indicator(emitter, []byte{':'}, false, false, false) {
+ return false
+ }
+ } else {
+ if !yaml_emitter_write_indent(emitter) {
+ return false
+ }
+ if !yaml_emitter_write_indicator(emitter, []byte{':'}, true, false, true) {
+ return false
+ }
+ }
+ emitter.states = append(emitter.states, yaml_EMIT_BLOCK_MAPPING_KEY_STATE)
+ return yaml_emitter_emit_node(emitter, event, false, false, true, false)
+}
+
+// Expect a node.
+func yaml_emitter_emit_node(emitter *yaml_emitter_t, event *yaml_event_t,
+ root bool, sequence bool, mapping bool, simple_key bool) bool {
+
+ emitter.root_context = root
+ emitter.sequence_context = sequence
+ emitter.mapping_context = mapping
+ emitter.simple_key_context = simple_key
+
+ switch event.typ {
+ case yaml_ALIAS_EVENT:
+ return yaml_emitter_emit_alias(emitter, event)
+ case yaml_SCALAR_EVENT:
+ return yaml_emitter_emit_scalar(emitter, event)
+ case yaml_SEQUENCE_START_EVENT:
+ return yaml_emitter_emit_sequence_start(emitter, event)
+ case yaml_MAPPING_START_EVENT:
+ return yaml_emitter_emit_mapping_start(emitter, event)
+ default:
+ return yaml_emitter_set_emitter_error(emitter,
+ fmt.Sprintf("expected SCALAR, SEQUENCE-START, MAPPING-START, or ALIAS, but got %v", event.typ))
+ }
+}
+
+// Expect ALIAS.
+func yaml_emitter_emit_alias(emitter *yaml_emitter_t, event *yaml_event_t) bool {
+ if !yaml_emitter_process_anchor(emitter) {
+ return false
+ }
+ emitter.state = emitter.states[len(emitter.states)-1]
+ emitter.states = emitter.states[:len(emitter.states)-1]
+ return true
+}
+
+// Expect SCALAR.
+func yaml_emitter_emit_scalar(emitter *yaml_emitter_t, event *yaml_event_t) bool {
+ if !yaml_emitter_select_scalar_style(emitter, event) {
+ return false
+ }
+ if !yaml_emitter_process_anchor(emitter) {
+ return false
+ }
+ if !yaml_emitter_process_tag(emitter) {
+ return false
+ }
+ if !yaml_emitter_increase_indent(emitter, true, false) {
+ return false
+ }
+ if !yaml_emitter_process_scalar(emitter) {
+ return false
+ }
+ emitter.indent = emitter.indents[len(emitter.indents)-1]
+ emitter.indents = emitter.indents[:len(emitter.indents)-1]
+ emitter.state = emitter.states[len(emitter.states)-1]
+ emitter.states = emitter.states[:len(emitter.states)-1]
+ return true
+}
+
+// Expect SEQUENCE-START.
+func yaml_emitter_emit_sequence_start(emitter *yaml_emitter_t, event *yaml_event_t) bool {
+ if !yaml_emitter_process_anchor(emitter) {
+ return false
+ }
+ if !yaml_emitter_process_tag(emitter) {
+ return false
+ }
+ if emitter.flow_level > 0 || emitter.canonical || event.sequence_style() == yaml_FLOW_SEQUENCE_STYLE ||
+ yaml_emitter_check_empty_sequence(emitter) {
+ emitter.state = yaml_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE
+ } else {
+ emitter.state = yaml_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE
+ }
+ return true
+}
+
+// Expect MAPPING-START.
+func yaml_emitter_emit_mapping_start(emitter *yaml_emitter_t, event *yaml_event_t) bool {
+ if !yaml_emitter_process_anchor(emitter) {
+ return false
+ }
+ if !yaml_emitter_process_tag(emitter) {
+ return false
+ }
+ if emitter.flow_level > 0 || emitter.canonical || event.mapping_style() == yaml_FLOW_MAPPING_STYLE ||
+ yaml_emitter_check_empty_mapping(emitter) {
+ emitter.state = yaml_EMIT_FLOW_MAPPING_FIRST_KEY_STATE
+ } else {
+ emitter.state = yaml_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE
+ }
+ return true
+}
+
+// Check if the document content is an empty scalar.
+func yaml_emitter_check_empty_document(emitter *yaml_emitter_t) bool {
+ return false // [Go] Huh?
+}
+
+// Check if the next events represent an empty sequence.
+func yaml_emitter_check_empty_sequence(emitter *yaml_emitter_t) bool {
+ if len(emitter.events)-emitter.events_head < 2 {
+ return false
+ }
+ return emitter.events[emitter.events_head].typ == yaml_SEQUENCE_START_EVENT &&
+ emitter.events[emitter.events_head+1].typ == yaml_SEQUENCE_END_EVENT
+}
+
+// Check if the next events represent an empty mapping.
+func yaml_emitter_check_empty_mapping(emitter *yaml_emitter_t) bool {
+ if len(emitter.events)-emitter.events_head < 2 {
+ return false
+ }
+ return emitter.events[emitter.events_head].typ == yaml_MAPPING_START_EVENT &&
+ emitter.events[emitter.events_head+1].typ == yaml_MAPPING_END_EVENT
+}
+
+// Check if the next node can be expressed as a simple key.
+func yaml_emitter_check_simple_key(emitter *yaml_emitter_t) bool {
+ length := 0
+ switch emitter.events[emitter.events_head].typ {
+ case yaml_ALIAS_EVENT:
+ length += len(emitter.anchor_data.anchor)
+ case yaml_SCALAR_EVENT:
+ if emitter.scalar_data.multiline {
+ return false
+ }
+ length += len(emitter.anchor_data.anchor) +
+ len(emitter.tag_data.handle) +
+ len(emitter.tag_data.suffix) +
+ len(emitter.scalar_data.value)
+ case yaml_SEQUENCE_START_EVENT:
+ if !yaml_emitter_check_empty_sequence(emitter) {
+ return false
+ }
+ length += len(emitter.anchor_data.anchor) +
+ len(emitter.tag_data.handle) +
+ len(emitter.tag_data.suffix)
+ case yaml_MAPPING_START_EVENT:
+ if !yaml_emitter_check_empty_mapping(emitter) {
+ return false
+ }
+ length += len(emitter.anchor_data.anchor) +
+ len(emitter.tag_data.handle) +
+ len(emitter.tag_data.suffix)
+ default:
+ return false
+ }
+ return length <= 128
+}
+
+// Determine an acceptable scalar style.
+func yaml_emitter_select_scalar_style(emitter *yaml_emitter_t, event *yaml_event_t) bool {
+
+ no_tag := len(emitter.tag_data.handle) == 0 && len(emitter.tag_data.suffix) == 0
+ if no_tag && !event.implicit && !event.quoted_implicit {
+ return yaml_emitter_set_emitter_error(emitter, "neither tag nor implicit flags are specified")
+ }
+
+ style := event.scalar_style()
+ if style == yaml_ANY_SCALAR_STYLE {
+ style = yaml_PLAIN_SCALAR_STYLE
+ }
+ if emitter.canonical {
+ style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
+ }
+ if emitter.simple_key_context && emitter.scalar_data.multiline {
+ style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
+ }
+
+ if style == yaml_PLAIN_SCALAR_STYLE {
+ if emitter.flow_level > 0 && !emitter.scalar_data.flow_plain_allowed ||
+ emitter.flow_level == 0 && !emitter.scalar_data.block_plain_allowed {
+ style = yaml_SINGLE_QUOTED_SCALAR_STYLE
+ }
+ if len(emitter.scalar_data.value) == 0 && (emitter.flow_level > 0 || emitter.simple_key_context) {
+ style = yaml_SINGLE_QUOTED_SCALAR_STYLE
+ }
+ if no_tag && !event.implicit {
+ style = yaml_SINGLE_QUOTED_SCALAR_STYLE
+ }
+ }
+ if style == yaml_SINGLE_QUOTED_SCALAR_STYLE {
+ if !emitter.scalar_data.single_quoted_allowed {
+ style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
+ }
+ }
+ if style == yaml_LITERAL_SCALAR_STYLE || style == yaml_FOLDED_SCALAR_STYLE {
+ if !emitter.scalar_data.block_allowed || emitter.flow_level > 0 || emitter.simple_key_context {
+ style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
+ }
+ }
+
+ if no_tag && !event.quoted_implicit && style != yaml_PLAIN_SCALAR_STYLE {
+ emitter.tag_data.handle = []byte{'!'}
+ }
+ emitter.scalar_data.style = style
+ return true
+}
+
+// Write an anchor.
+func yaml_emitter_process_anchor(emitter *yaml_emitter_t) bool {
+ if emitter.anchor_data.anchor == nil {
+ return true
+ }
+ c := []byte{'&'}
+ if emitter.anchor_data.alias {
+ c[0] = '*'
+ }
+ if !yaml_emitter_write_indicator(emitter, c, true, false, false) {
+ return false
+ }
+ return yaml_emitter_write_anchor(emitter, emitter.anchor_data.anchor)
+}
+
+// Write a tag.
+func yaml_emitter_process_tag(emitter *yaml_emitter_t) bool {
+ if len(emitter.tag_data.handle) == 0 && len(emitter.tag_data.suffix) == 0 {
+ return true
+ }
+ if len(emitter.tag_data.handle) > 0 {
+ if !yaml_emitter_write_tag_handle(emitter, emitter.tag_data.handle) {
+ return false
+ }
+ if len(emitter.tag_data.suffix) > 0 {
+ if !yaml_emitter_write_tag_content(emitter, emitter.tag_data.suffix, false) {
+ return false
+ }
+ }
+ } else {
+ // [Go] Allocate these slices elsewhere.
+ if !yaml_emitter_write_indicator(emitter, []byte("!<"), true, false, false) {
+ return false
+ }
+ if !yaml_emitter_write_tag_content(emitter, emitter.tag_data.suffix, false) {
+ return false
+ }
+ if !yaml_emitter_write_indicator(emitter, []byte{'>'}, false, false, false) {
+ return false
+ }
+ }
+ return true
+}
+
+// Write a scalar.
+func yaml_emitter_process_scalar(emitter *yaml_emitter_t) bool {
+ switch emitter.scalar_data.style {
+ case yaml_PLAIN_SCALAR_STYLE:
+ return yaml_emitter_write_plain_scalar(emitter, emitter.scalar_data.value, !emitter.simple_key_context)
+
+ case yaml_SINGLE_QUOTED_SCALAR_STYLE:
+ return yaml_emitter_write_single_quoted_scalar(emitter, emitter.scalar_data.value, !emitter.simple_key_context)
+
+ case yaml_DOUBLE_QUOTED_SCALAR_STYLE:
+ return yaml_emitter_write_double_quoted_scalar(emitter, emitter.scalar_data.value, !emitter.simple_key_context)
+
+ case yaml_LITERAL_SCALAR_STYLE:
+ return yaml_emitter_write_literal_scalar(emitter, emitter.scalar_data.value)
+
+ case yaml_FOLDED_SCALAR_STYLE:
+ return yaml_emitter_write_folded_scalar(emitter, emitter.scalar_data.value)
+ }
+ panic("unknown scalar style")
+}
+
+// Check if a %YAML directive is valid.
+func yaml_emitter_analyze_version_directive(emitter *yaml_emitter_t, version_directive *yaml_version_directive_t) bool {
+ if version_directive.major != 1 || version_directive.minor != 1 {
+ return yaml_emitter_set_emitter_error(emitter, "incompatible %YAML directive")
+ }
+ return true
+}
+
+// Check if a %TAG directive is valid.
+func yaml_emitter_analyze_tag_directive(emitter *yaml_emitter_t, tag_directive *yaml_tag_directive_t) bool {
+ handle := tag_directive.handle
+ prefix := tag_directive.prefix
+ if len(handle) == 0 {
+ return yaml_emitter_set_emitter_error(emitter, "tag handle must not be empty")
+ }
+ if handle[0] != '!' {
+ return yaml_emitter_set_emitter_error(emitter, "tag handle must start with '!'")
+ }
+ if handle[len(handle)-1] != '!' {
+ return yaml_emitter_set_emitter_error(emitter, "tag handle must end with '!'")
+ }
+ for i := 1; i < len(handle)-1; i += width(handle[i]) {
+ if !is_alpha(handle, i) {
+ return yaml_emitter_set_emitter_error(emitter, "tag handle must contain alphanumerical characters only")
+ }
+ }
+ if len(prefix) == 0 {
+ return yaml_emitter_set_emitter_error(emitter, "tag prefix must not be empty")
+ }
+ return true
+}
+
+// Check if an anchor is valid.
+func yaml_emitter_analyze_anchor(emitter *yaml_emitter_t, anchor []byte, alias bool) bool {
+ if len(anchor) == 0 {
+ problem := "anchor value must not be empty"
+ if alias {
+ problem = "alias value must not be empty"
+ }
+ return yaml_emitter_set_emitter_error(emitter, problem)
+ }
+ for i := 0; i < len(anchor); i += width(anchor[i]) {
+ if !is_alpha(anchor, i) {
+ problem := "anchor value must contain alphanumerical characters only"
+ if alias {
+ problem = "alias value must contain alphanumerical characters only"
+ }
+ return yaml_emitter_set_emitter_error(emitter, problem)
+ }
+ }
+ emitter.anchor_data.anchor = anchor
+ emitter.anchor_data.alias = alias
+ return true
+}
+
+// Check if a tag is valid.
+func yaml_emitter_analyze_tag(emitter *yaml_emitter_t, tag []byte) bool {
+ if len(tag) == 0 {
+ return yaml_emitter_set_emitter_error(emitter, "tag value must not be empty")
+ }
+ for i := 0; i < len(emitter.tag_directives); i++ {
+ tag_directive := &emitter.tag_directives[i]
+ if bytes.HasPrefix(tag, tag_directive.prefix) {
+ emitter.tag_data.handle = tag_directive.handle
+ emitter.tag_data.suffix = tag[len(tag_directive.prefix):]
+ return true
+ }
+ }
+ emitter.tag_data.suffix = tag
+ return true
+}
+
+// Check if a scalar is valid.
+func yaml_emitter_analyze_scalar(emitter *yaml_emitter_t, value []byte) bool {
+ var (
+ block_indicators = false
+ flow_indicators = false
+ line_breaks = false
+ special_characters = false
+
+ leading_space = false
+ leading_break = false
+ trailing_space = false
+ trailing_break = false
+ break_space = false
+ space_break = false
+
+ preceded_by_whitespace = false
+ followed_by_whitespace = false
+ previous_space = false
+ previous_break = false
+ )
+
+ emitter.scalar_data.value = value
+
+ if len(value) == 0 {
+ emitter.scalar_data.multiline = false
+ emitter.scalar_data.flow_plain_allowed = false
+ emitter.scalar_data.block_plain_allowed = true
+ emitter.scalar_data.single_quoted_allowed = true
+ emitter.scalar_data.block_allowed = false
+ return true
+ }
+
+ if len(value) >= 3 && ((value[0] == '-' && value[1] == '-' && value[2] == '-') || (value[0] == '.' && value[1] == '.' && value[2] == '.')) {
+ block_indicators = true
+ flow_indicators = true
+ }
+
+ preceded_by_whitespace = true
+ for i, w := 0, 0; i < len(value); i += w {
+ w = width(value[i])
+ followed_by_whitespace = i+w >= len(value) || is_blank(value, i+w)
+
+ if i == 0 {
+ switch value[i] {
+ case '#', ',', '[', ']', '{', '}', '&', '*', '!', '|', '>', '\'', '"', '%', '@', '`':
+ flow_indicators = true
+ block_indicators = true
+ case '?', ':':
+ flow_indicators = true
+ if followed_by_whitespace {
+ block_indicators = true
+ }
+ case '-':
+ if followed_by_whitespace {
+ flow_indicators = true
+ block_indicators = true
+ }
+ }
+ } else {
+ switch value[i] {
+ case ',', '?', '[', ']', '{', '}':
+ flow_indicators = true
+ case ':':
+ flow_indicators = true
+ if followed_by_whitespace {
+ block_indicators = true
+ }
+ case '#':
+ if preceded_by_whitespace {
+ flow_indicators = true
+ block_indicators = true
+ }
+ }
+ }
+
+ if !is_printable(value, i) || !is_ascii(value, i) && !emitter.unicode {
+ special_characters = true
+ }
+ if is_space(value, i) {
+ if i == 0 {
+ leading_space = true
+ }
+ if i+width(value[i]) == len(value) {
+ trailing_space = true
+ }
+ if previous_break {
+ break_space = true
+ }
+ previous_space = true
+ previous_break = false
+ } else if is_break(value, i) {
+ line_breaks = true
+ if i == 0 {
+ leading_break = true
+ }
+ if i+width(value[i]) == len(value) {
+ trailing_break = true
+ }
+ if previous_space {
+ space_break = true
+ }
+ previous_space = false
+ previous_break = true
+ } else {
+ previous_space = false
+ previous_break = false
+ }
+
+ // [Go]: Why 'z'? Couldn't be the end of the string as that's the loop condition.
+ preceded_by_whitespace = is_blankz(value, i)
+ }
+
+ emitter.scalar_data.multiline = line_breaks
+ emitter.scalar_data.flow_plain_allowed = true
+ emitter.scalar_data.block_plain_allowed = true
+ emitter.scalar_data.single_quoted_allowed = true
+ emitter.scalar_data.block_allowed = true
+
+ if leading_space || leading_break || trailing_space || trailing_break {
+ emitter.scalar_data.flow_plain_allowed = false
+ emitter.scalar_data.block_plain_allowed = false
+ }
+ if trailing_space {
+ emitter.scalar_data.block_allowed = false
+ }
+ if break_space {
+ emitter.scalar_data.flow_plain_allowed = false
+ emitter.scalar_data.block_plain_allowed = false
+ emitter.scalar_data.single_quoted_allowed = false
+ }
+ if space_break || special_characters {
+ emitter.scalar_data.flow_plain_allowed = false
+ emitter.scalar_data.block_plain_allowed = false
+ emitter.scalar_data.single_quoted_allowed = false
+ emitter.scalar_data.block_allowed = false
+ }
+ if line_breaks {
+ emitter.scalar_data.flow_plain_allowed = false
+ emitter.scalar_data.block_plain_allowed = false
+ }
+ if flow_indicators {
+ emitter.scalar_data.flow_plain_allowed = false
+ }
+ if block_indicators {
+ emitter.scalar_data.block_plain_allowed = false
+ }
+ return true
+}
+
+// Check if the event data is valid.
+func yaml_emitter_analyze_event(emitter *yaml_emitter_t, event *yaml_event_t) bool {
+
+ emitter.anchor_data.anchor = nil
+ emitter.tag_data.handle = nil
+ emitter.tag_data.suffix = nil
+ emitter.scalar_data.value = nil
+
+ switch event.typ {
+ case yaml_ALIAS_EVENT:
+ if !yaml_emitter_analyze_anchor(emitter, event.anchor, true) {
+ return false
+ }
+
+ case yaml_SCALAR_EVENT:
+ if len(event.anchor) > 0 {
+ if !yaml_emitter_analyze_anchor(emitter, event.anchor, false) {
+ return false
+ }
+ }
+ if len(event.tag) > 0 && (emitter.canonical || (!event.implicit && !event.quoted_implicit)) {
+ if !yaml_emitter_analyze_tag(emitter, event.tag) {
+ return false
+ }
+ }
+ if !yaml_emitter_analyze_scalar(emitter, event.value) {
+ return false
+ }
+
+ case yaml_SEQUENCE_START_EVENT:
+ if len(event.anchor) > 0 {
+ if !yaml_emitter_analyze_anchor(emitter, event.anchor, false) {
+ return false
+ }
+ }
+ if len(event.tag) > 0 && (emitter.canonical || !event.implicit) {
+ if !yaml_emitter_analyze_tag(emitter, event.tag) {
+ return false
+ }
+ }
+
+ case yaml_MAPPING_START_EVENT:
+ if len(event.anchor) > 0 {
+ if !yaml_emitter_analyze_anchor(emitter, event.anchor, false) {
+ return false
+ }
+ }
+ if len(event.tag) > 0 && (emitter.canonical || !event.implicit) {
+ if !yaml_emitter_analyze_tag(emitter, event.tag) {
+ return false
+ }
+ }
+ }
+ return true
+}
+
+// Write the BOM character.
+func yaml_emitter_write_bom(emitter *yaml_emitter_t) bool {
+ if !flush(emitter) {
+ return false
+ }
+ pos := emitter.buffer_pos
+ emitter.buffer[pos+0] = '\xEF'
+ emitter.buffer[pos+1] = '\xBB'
+ emitter.buffer[pos+2] = '\xBF'
+ emitter.buffer_pos += 3
+ return true
+}
+
+func yaml_emitter_write_indent(emitter *yaml_emitter_t) bool {
+ indent := emitter.indent
+ if indent < 0 {
+ indent = 0
+ }
+ if !emitter.indention || emitter.column > indent || (emitter.column == indent && !emitter.whitespace) {
+ if !put_break(emitter) {
+ return false
+ }
+ }
+ for emitter.column < indent {
+ if !put(emitter, ' ') {
+ return false
+ }
+ }
+ emitter.whitespace = true
+ emitter.indention = true
+ return true
+}
+
+func yaml_emitter_write_indicator(emitter *yaml_emitter_t, indicator []byte, need_whitespace, is_whitespace, is_indention bool) bool {
+ if need_whitespace && !emitter.whitespace {
+ if !put(emitter, ' ') {
+ return false
+ }
+ }
+ if !write_all(emitter, indicator) {
+ return false
+ }
+ emitter.whitespace = is_whitespace
+ emitter.indention = (emitter.indention && is_indention)
+ emitter.open_ended = false
+ return true
+}
+
+func yaml_emitter_write_anchor(emitter *yaml_emitter_t, value []byte) bool {
+ if !write_all(emitter, value) {
+ return false
+ }
+ emitter.whitespace = false
+ emitter.indention = false
+ return true
+}
+
+func yaml_emitter_write_tag_handle(emitter *yaml_emitter_t, value []byte) bool {
+ if !emitter.whitespace {
+ if !put(emitter, ' ') {
+ return false
+ }
+ }
+ if !write_all(emitter, value) {
+ return false
+ }
+ emitter.whitespace = false
+ emitter.indention = false
+ return true
+}
+
+func yaml_emitter_write_tag_content(emitter *yaml_emitter_t, value []byte, need_whitespace bool) bool {
+ if need_whitespace && !emitter.whitespace {
+ if !put(emitter, ' ') {
+ return false
+ }
+ }
+ for i := 0; i < len(value); {
+ var must_write bool
+ switch value[i] {
+ case ';', '/', '?', ':', '@', '&', '=', '+', '$', ',', '_', '.', '~', '*', '\'', '(', ')', '[', ']':
+ must_write = true
+ default:
+ must_write = is_alpha(value, i)
+ }
+ if must_write {
+ if !write(emitter, value, &i) {
+ return false
+ }
+ } else {
+ w := width(value[i])
+ for k := 0; k < w; k++ {
+ octet := value[i]
+ i++
+ if !put(emitter, '%') {
+ return false
+ }
+
+ c := octet >> 4
+ if c < 10 {
+ c += '0'
+ } else {
+ c += 'A' - 10
+ }
+ if !put(emitter, c) {
+ return false
+ }
+
+ c = octet & 0x0f
+ if c < 10 {
+ c += '0'
+ } else {
+ c += 'A' - 10
+ }
+ if !put(emitter, c) {
+ return false
+ }
+ }
+ }
+ }
+ emitter.whitespace = false
+ emitter.indention = false
+ return true
+}
+
+func yaml_emitter_write_plain_scalar(emitter *yaml_emitter_t, value []byte, allow_breaks bool) bool {
+ if !emitter.whitespace {
+ if !put(emitter, ' ') {
+ return false
+ }
+ }
+
+ spaces := false
+ breaks := false
+ for i := 0; i < len(value); {
+ if is_space(value, i) {
+ if allow_breaks && !spaces && emitter.column > emitter.best_width && !is_space(value, i+1) {
+ if !yaml_emitter_write_indent(emitter) {
+ return false
+ }
+ i += width(value[i])
+ } else {
+ if !write(emitter, value, &i) {
+ return false
+ }
+ }
+ spaces = true
+ } else if is_break(value, i) {
+ if !breaks && value[i] == '\n' {
+ if !put_break(emitter) {
+ return false
+ }
+ }
+ if !write_break(emitter, value, &i) {
+ return false
+ }
+ emitter.indention = true
+ breaks = true
+ } else {
+ if breaks {
+ if !yaml_emitter_write_indent(emitter) {
+ return false
+ }
+ }
+ if !write(emitter, value, &i) {
+ return false
+ }
+ emitter.indention = false
+ spaces = false
+ breaks = false
+ }
+ }
+
+ emitter.whitespace = false
+ emitter.indention = false
+ if emitter.root_context {
+ emitter.open_ended = true
+ }
+
+ return true
+}
+
+func yaml_emitter_write_single_quoted_scalar(emitter *yaml_emitter_t, value []byte, allow_breaks bool) bool {
+
+ if !yaml_emitter_write_indicator(emitter, []byte{'\''}, true, false, false) {
+ return false
+ }
+
+ spaces := false
+ breaks := false
+ for i := 0; i < len(value); {
+ if is_space(value, i) {
+ if allow_breaks && !spaces && emitter.column > emitter.best_width && i > 0 && i < len(value)-1 && !is_space(value, i+1) {
+ if !yaml_emitter_write_indent(emitter) {
+ return false
+ }
+ i += width(value[i])
+ } else {
+ if !write(emitter, value, &i) {
+ return false
+ }
+ }
+ spaces = true
+ } else if is_break(value, i) {
+ if !breaks && value[i] == '\n' {
+ if !put_break(emitter) {
+ return false
+ }
+ }
+ if !write_break(emitter, value, &i) {
+ return false
+ }
+ emitter.indention = true
+ breaks = true
+ } else {
+ if breaks {
+ if !yaml_emitter_write_indent(emitter) {
+ return false
+ }
+ }
+ if value[i] == '\'' {
+ if !put(emitter, '\'') {
+ return false
+ }
+ }
+ if !write(emitter, value, &i) {
+ return false
+ }
+ emitter.indention = false
+ spaces = false
+ breaks = false
+ }
+ }
+ if !yaml_emitter_write_indicator(emitter, []byte{'\''}, false, false, false) {
+ return false
+ }
+ emitter.whitespace = false
+ emitter.indention = false
+ return true
+}
+
+func yaml_emitter_write_double_quoted_scalar(emitter *yaml_emitter_t, value []byte, allow_breaks bool) bool {
+ spaces := false
+ if !yaml_emitter_write_indicator(emitter, []byte{'"'}, true, false, false) {
+ return false
+ }
+
+ for i := 0; i < len(value); {
+ if !is_printable(value, i) || (!emitter.unicode && !is_ascii(value, i)) ||
+ is_bom(value, i) || is_break(value, i) ||
+ value[i] == '"' || value[i] == '\\' {
+
+ octet := value[i]
+
+ var w int
+ var v rune
+ switch {
+ case octet&0x80 == 0x00:
+ w, v = 1, rune(octet&0x7F)
+ case octet&0xE0 == 0xC0:
+ w, v = 2, rune(octet&0x1F)
+ case octet&0xF0 == 0xE0:
+ w, v = 3, rune(octet&0x0F)
+ case octet&0xF8 == 0xF0:
+ w, v = 4, rune(octet&0x07)
+ }
+ for k := 1; k < w; k++ {
+ octet = value[i+k]
+ v = (v << 6) + (rune(octet) & 0x3F)
+ }
+ i += w
+
+ if !put(emitter, '\\') {
+ return false
+ }
+
+ var ok bool
+ switch v {
+ case 0x00:
+ ok = put(emitter, '0')
+ case 0x07:
+ ok = put(emitter, 'a')
+ case 0x08:
+ ok = put(emitter, 'b')
+ case 0x09:
+ ok = put(emitter, 't')
+ case 0x0A:
+ ok = put(emitter, 'n')
+ case 0x0b:
+ ok = put(emitter, 'v')
+ case 0x0c:
+ ok = put(emitter, 'f')
+ case 0x0d:
+ ok = put(emitter, 'r')
+ case 0x1b:
+ ok = put(emitter, 'e')
+ case 0x22:
+ ok = put(emitter, '"')
+ case 0x5c:
+ ok = put(emitter, '\\')
+ case 0x85:
+ ok = put(emitter, 'N')
+ case 0xA0:
+ ok = put(emitter, '_')
+ case 0x2028:
+ ok = put(emitter, 'L')
+ case 0x2029:
+ ok = put(emitter, 'P')
+ default:
+ if v <= 0xFF {
+ ok = put(emitter, 'x')
+ w = 2
+ } else if v <= 0xFFFF {
+ ok = put(emitter, 'u')
+ w = 4
+ } else {
+ ok = put(emitter, 'U')
+ w = 8
+ }
+ for k := (w - 1) * 4; ok && k >= 0; k -= 4 {
+ digit := byte((v >> uint(k)) & 0x0F)
+ if digit < 10 {
+ ok = put(emitter, digit+'0')
+ } else {
+ ok = put(emitter, digit+'A'-10)
+ }
+ }
+ }
+ if !ok {
+ return false
+ }
+ spaces = false
+ } else if is_space(value, i) {
+ if allow_breaks && !spaces && emitter.column > emitter.best_width && i > 0 && i < len(value)-1 {
+ if !yaml_emitter_write_indent(emitter) {
+ return false
+ }
+ if is_space(value, i+1) {
+ if !put(emitter, '\\') {
+ return false
+ }
+ }
+ i += width(value[i])
+ } else if !write(emitter, value, &i) {
+ return false
+ }
+ spaces = true
+ } else {
+ if !write(emitter, value, &i) {
+ return false
+ }
+ spaces = false
+ }
+ }
+ if !yaml_emitter_write_indicator(emitter, []byte{'"'}, false, false, false) {
+ return false
+ }
+ emitter.whitespace = false
+ emitter.indention = false
+ return true
+}
+
+func yaml_emitter_write_block_scalar_hints(emitter *yaml_emitter_t, value []byte) bool {
+ if is_space(value, 0) || is_break(value, 0) {
+ indent_hint := []byte{'0' + byte(emitter.best_indent)}
+ if !yaml_emitter_write_indicator(emitter, indent_hint, false, false, false) {
+ return false
+ }
+ }
+
+ emitter.open_ended = false
+
+ var chomp_hint [1]byte
+ if len(value) == 0 {
+ chomp_hint[0] = '-'
+ } else {
+ i := len(value) - 1
+ for value[i]&0xC0 == 0x80 {
+ i--
+ }
+ if !is_break(value, i) {
+ chomp_hint[0] = '-'
+ } else if i == 0 {
+ chomp_hint[0] = '+'
+ emitter.open_ended = true
+ } else {
+ i--
+ for value[i]&0xC0 == 0x80 {
+ i--
+ }
+ if is_break(value, i) {
+ chomp_hint[0] = '+'
+ emitter.open_ended = true
+ }
+ }
+ }
+ if chomp_hint[0] != 0 {
+ if !yaml_emitter_write_indicator(emitter, chomp_hint[:], false, false, false) {
+ return false
+ }
+ }
+ return true
+}
+
+func yaml_emitter_write_literal_scalar(emitter *yaml_emitter_t, value []byte) bool {
+ if !yaml_emitter_write_indicator(emitter, []byte{'|'}, true, false, false) {
+ return false
+ }
+ if !yaml_emitter_write_block_scalar_hints(emitter, value) {
+ return false
+ }
+ if !put_break(emitter) {
+ return false
+ }
+ emitter.indention = true
+ emitter.whitespace = true
+ breaks := true
+ for i := 0; i < len(value); {
+ if is_break(value, i) {
+ if !write_break(emitter, value, &i) {
+ return false
+ }
+ emitter.indention = true
+ breaks = true
+ } else {
+ if breaks {
+ if !yaml_emitter_write_indent(emitter) {
+ return false
+ }
+ }
+ if !write(emitter, value, &i) {
+ return false
+ }
+ emitter.indention = false
+ breaks = false
+ }
+ }
+
+ return true
+}
+
+func yaml_emitter_write_folded_scalar(emitter *yaml_emitter_t, value []byte) bool {
+ if !yaml_emitter_write_indicator(emitter, []byte{'>'}, true, false, false) {
+ return false
+ }
+ if !yaml_emitter_write_block_scalar_hints(emitter, value) {
+ return false
+ }
+
+ if !put_break(emitter) {
+ return false
+ }
+ emitter.indention = true
+ emitter.whitespace = true
+
+ breaks := true
+ leading_spaces := true
+ for i := 0; i < len(value); {
+ if is_break(value, i) {
+ if !breaks && !leading_spaces && value[i] == '\n' {
+ k := 0
+ for is_break(value, k) {
+ k += width(value[k])
+ }
+ if !is_blankz(value, k) {
+ if !put_break(emitter) {
+ return false
+ }
+ }
+ }
+ if !write_break(emitter, value, &i) {
+ return false
+ }
+ emitter.indention = true
+ breaks = true
+ } else {
+ if breaks {
+ if !yaml_emitter_write_indent(emitter) {
+ return false
+ }
+ leading_spaces = is_blank(value, i)
+ }
+ if !breaks && is_space(value, i) && !is_space(value, i+1) && emitter.column > emitter.best_width {
+ if !yaml_emitter_write_indent(emitter) {
+ return false
+ }
+ i += width(value[i])
+ } else {
+ if !write(emitter, value, &i) {
+ return false
+ }
+ }
+ emitter.indention = false
+ breaks = false
+ }
+ }
+ return true
+}
diff --git a/vendor/gopkg.in/yaml.v2/encode.go b/vendor/gopkg.in/yaml.v2/encode.go
new file mode 100644
index 0000000..a14435e
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/encode.go
@@ -0,0 +1,362 @@
+package yaml
+
+import (
+ "encoding"
+ "fmt"
+ "io"
+ "reflect"
+ "regexp"
+ "sort"
+ "strconv"
+ "strings"
+ "time"
+ "unicode/utf8"
+)
+
+type encoder struct {
+ emitter yaml_emitter_t
+ event yaml_event_t
+ out []byte
+ flow bool
+ // doneInit holds whether the initial stream_start_event has been
+ // emitted.
+ doneInit bool
+}
+
+func newEncoder() *encoder {
+ e := &encoder{}
+ yaml_emitter_initialize(&e.emitter)
+ yaml_emitter_set_output_string(&e.emitter, &e.out)
+ yaml_emitter_set_unicode(&e.emitter, true)
+ return e
+}
+
+func newEncoderWithWriter(w io.Writer) *encoder {
+ e := &encoder{}
+ yaml_emitter_initialize(&e.emitter)
+ yaml_emitter_set_output_writer(&e.emitter, w)
+ yaml_emitter_set_unicode(&e.emitter, true)
+ return e
+}
+
+func (e *encoder) init() {
+ if e.doneInit {
+ return
+ }
+ yaml_stream_start_event_initialize(&e.event, yaml_UTF8_ENCODING)
+ e.emit()
+ e.doneInit = true
+}
+
+func (e *encoder) finish() {
+ e.emitter.open_ended = false
+ yaml_stream_end_event_initialize(&e.event)
+ e.emit()
+}
+
+func (e *encoder) destroy() {
+ yaml_emitter_delete(&e.emitter)
+}
+
+func (e *encoder) emit() {
+ // This will internally delete the e.event value.
+ e.must(yaml_emitter_emit(&e.emitter, &e.event))
+}
+
+func (e *encoder) must(ok bool) {
+ if !ok {
+ msg := e.emitter.problem
+ if msg == "" {
+ msg = "unknown problem generating YAML content"
+ }
+ failf("%s", msg)
+ }
+}
+
+func (e *encoder) marshalDoc(tag string, in reflect.Value) {
+ e.init()
+ yaml_document_start_event_initialize(&e.event, nil, nil, true)
+ e.emit()
+ e.marshal(tag, in)
+ yaml_document_end_event_initialize(&e.event, true)
+ e.emit()
+}
+
+func (e *encoder) marshal(tag string, in reflect.Value) {
+ if !in.IsValid() || in.Kind() == reflect.Ptr && in.IsNil() {
+ e.nilv()
+ return
+ }
+ iface := in.Interface()
+ switch m := iface.(type) {
+ case time.Time, *time.Time:
+ // Although time.Time implements TextMarshaler,
+ // we don't want to treat it as a string for YAML
+ // purposes because YAML has special support for
+ // timestamps.
+ case Marshaler:
+ v, err := m.MarshalYAML()
+ if err != nil {
+ fail(err)
+ }
+ if v == nil {
+ e.nilv()
+ return
+ }
+ in = reflect.ValueOf(v)
+ case encoding.TextMarshaler:
+ text, err := m.MarshalText()
+ if err != nil {
+ fail(err)
+ }
+ in = reflect.ValueOf(string(text))
+ case nil:
+ e.nilv()
+ return
+ }
+ switch in.Kind() {
+ case reflect.Interface:
+ e.marshal(tag, in.Elem())
+ case reflect.Map:
+ e.mapv(tag, in)
+ case reflect.Ptr:
+ if in.Type() == ptrTimeType {
+ e.timev(tag, in.Elem())
+ } else {
+ e.marshal(tag, in.Elem())
+ }
+ case reflect.Struct:
+ if in.Type() == timeType {
+ e.timev(tag, in)
+ } else {
+ e.structv(tag, in)
+ }
+ case reflect.Slice, reflect.Array:
+ if in.Type().Elem() == mapItemType {
+ e.itemsv(tag, in)
+ } else {
+ e.slicev(tag, in)
+ }
+ case reflect.String:
+ e.stringv(tag, in)
+ case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+ if in.Type() == durationType {
+ e.stringv(tag, reflect.ValueOf(iface.(time.Duration).String()))
+ } else {
+ e.intv(tag, in)
+ }
+ case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+ e.uintv(tag, in)
+ case reflect.Float32, reflect.Float64:
+ e.floatv(tag, in)
+ case reflect.Bool:
+ e.boolv(tag, in)
+ default:
+ panic("cannot marshal type: " + in.Type().String())
+ }
+}
+
+func (e *encoder) mapv(tag string, in reflect.Value) {
+ e.mappingv(tag, func() {
+ keys := keyList(in.MapKeys())
+ sort.Sort(keys)
+ for _, k := range keys {
+ e.marshal("", k)
+ e.marshal("", in.MapIndex(k))
+ }
+ })
+}
+
+func (e *encoder) itemsv(tag string, in reflect.Value) {
+ e.mappingv(tag, func() {
+ slice := in.Convert(reflect.TypeOf([]MapItem{})).Interface().([]MapItem)
+ for _, item := range slice {
+ e.marshal("", reflect.ValueOf(item.Key))
+ e.marshal("", reflect.ValueOf(item.Value))
+ }
+ })
+}
+
+func (e *encoder) structv(tag string, in reflect.Value) {
+ sinfo, err := getStructInfo(in.Type())
+ if err != nil {
+ panic(err)
+ }
+ e.mappingv(tag, func() {
+ for _, info := range sinfo.FieldsList {
+ var value reflect.Value
+ if info.Inline == nil {
+ value = in.Field(info.Num)
+ } else {
+ value = in.FieldByIndex(info.Inline)
+ }
+ if info.OmitEmpty && isZero(value) {
+ continue
+ }
+ e.marshal("", reflect.ValueOf(info.Key))
+ e.flow = info.Flow
+ e.marshal("", value)
+ }
+ if sinfo.InlineMap >= 0 {
+ m := in.Field(sinfo.InlineMap)
+ if m.Len() > 0 {
+ e.flow = false
+ keys := keyList(m.MapKeys())
+ sort.Sort(keys)
+ for _, k := range keys {
+ if _, found := sinfo.FieldsMap[k.String()]; found {
+ panic(fmt.Sprintf("Can't have key %q in inlined map; conflicts with struct field", k.String()))
+ }
+ e.marshal("", k)
+ e.flow = false
+ e.marshal("", m.MapIndex(k))
+ }
+ }
+ }
+ })
+}
+
+func (e *encoder) mappingv(tag string, f func()) {
+ implicit := tag == ""
+ style := yaml_BLOCK_MAPPING_STYLE
+ if e.flow {
+ e.flow = false
+ style = yaml_FLOW_MAPPING_STYLE
+ }
+ yaml_mapping_start_event_initialize(&e.event, nil, []byte(tag), implicit, style)
+ e.emit()
+ f()
+ yaml_mapping_end_event_initialize(&e.event)
+ e.emit()
+}
+
+func (e *encoder) slicev(tag string, in reflect.Value) {
+ implicit := tag == ""
+ style := yaml_BLOCK_SEQUENCE_STYLE
+ if e.flow {
+ e.flow = false
+ style = yaml_FLOW_SEQUENCE_STYLE
+ }
+ e.must(yaml_sequence_start_event_initialize(&e.event, nil, []byte(tag), implicit, style))
+ e.emit()
+ n := in.Len()
+ for i := 0; i < n; i++ {
+ e.marshal("", in.Index(i))
+ }
+ e.must(yaml_sequence_end_event_initialize(&e.event))
+ e.emit()
+}
+
+// isBase60 returns whether s is in base 60 notation as defined in YAML 1.1.
+//
+// The base 60 float notation in YAML 1.1 is a terrible idea and is unsupported
+// in YAML 1.2 and by this package, but these should be marshalled quoted for
+// the time being for compatibility with other parsers.
+func isBase60Float(s string) (result bool) {
+ // Fast path.
+ if s == "" {
+ return false
+ }
+ c := s[0]
+ if !(c == '+' || c == '-' || c >= '0' && c <= '9') || strings.IndexByte(s, ':') < 0 {
+ return false
+ }
+ // Do the full match.
+ return base60float.MatchString(s)
+}
+
+// From http://yaml.org/type/float.html, except the regular expression there
+// is bogus. In practice parsers do not enforce the "\.[0-9_]*" suffix.
+var base60float = regexp.MustCompile(`^[-+]?[0-9][0-9_]*(?::[0-5]?[0-9])+(?:\.[0-9_]*)?$`)
+
+func (e *encoder) stringv(tag string, in reflect.Value) {
+ var style yaml_scalar_style_t
+ s := in.String()
+ canUsePlain := true
+ switch {
+ case !utf8.ValidString(s):
+ if tag == yaml_BINARY_TAG {
+ failf("explicitly tagged !!binary data must be base64-encoded")
+ }
+ if tag != "" {
+ failf("cannot marshal invalid UTF-8 data as %s", shortTag(tag))
+ }
+ // It can't be encoded directly as YAML so use a binary tag
+ // and encode it as base64.
+ tag = yaml_BINARY_TAG
+ s = encodeBase64(s)
+ case tag == "":
+ // Check to see if it would resolve to a specific
+ // tag when encoded unquoted. If it doesn't,
+ // there's no need to quote it.
+ rtag, _ := resolve("", s)
+ canUsePlain = rtag == yaml_STR_TAG && !isBase60Float(s)
+ }
+ // Note: it's possible for user code to emit invalid YAML
+ // if they explicitly specify a tag and a string containing
+ // text that's incompatible with that tag.
+ switch {
+ case strings.Contains(s, "\n"):
+ style = yaml_LITERAL_SCALAR_STYLE
+ case canUsePlain:
+ style = yaml_PLAIN_SCALAR_STYLE
+ default:
+ style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
+ }
+ e.emitScalar(s, "", tag, style)
+}
+
+func (e *encoder) boolv(tag string, in reflect.Value) {
+ var s string
+ if in.Bool() {
+ s = "true"
+ } else {
+ s = "false"
+ }
+ e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
+}
+
+func (e *encoder) intv(tag string, in reflect.Value) {
+ s := strconv.FormatInt(in.Int(), 10)
+ e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
+}
+
+func (e *encoder) uintv(tag string, in reflect.Value) {
+ s := strconv.FormatUint(in.Uint(), 10)
+ e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
+}
+
+func (e *encoder) timev(tag string, in reflect.Value) {
+ t := in.Interface().(time.Time)
+ s := t.Format(time.RFC3339Nano)
+ e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
+}
+
+func (e *encoder) floatv(tag string, in reflect.Value) {
+ // Issue #352: When formatting, use the precision of the underlying value
+ precision := 64
+ if in.Kind() == reflect.Float32 {
+ precision = 32
+ }
+
+ s := strconv.FormatFloat(in.Float(), 'g', -1, precision)
+ switch s {
+ case "+Inf":
+ s = ".inf"
+ case "-Inf":
+ s = "-.inf"
+ case "NaN":
+ s = ".nan"
+ }
+ e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE)
+}
+
+func (e *encoder) nilv() {
+ e.emitScalar("null", "", "", yaml_PLAIN_SCALAR_STYLE)
+}
+
+func (e *encoder) emitScalar(value, anchor, tag string, style yaml_scalar_style_t) {
+ implicit := tag == ""
+ e.must(yaml_scalar_event_initialize(&e.event, []byte(anchor), []byte(tag), []byte(value), implicit, implicit, style))
+ e.emit()
+}
diff --git a/vendor/gopkg.in/yaml.v2/go.mod b/vendor/gopkg.in/yaml.v2/go.mod
new file mode 100644
index 0000000..1934e87
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/go.mod
@@ -0,0 +1,5 @@
+module "gopkg.in/yaml.v2"
+
+require (
+ "gopkg.in/check.v1" v0.0.0-20161208181325-20d25e280405
+)
diff --git a/vendor/gopkg.in/yaml.v2/parserc.go b/vendor/gopkg.in/yaml.v2/parserc.go
new file mode 100644
index 0000000..81d05df
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/parserc.go
@@ -0,0 +1,1095 @@
+package yaml
+
+import (
+ "bytes"
+)
+
+// The parser implements the following grammar:
+//
+// stream ::= STREAM-START implicit_document? explicit_document* STREAM-END
+// implicit_document ::= block_node DOCUMENT-END*
+// explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*
+// block_node_or_indentless_sequence ::=
+// ALIAS
+// | properties (block_content | indentless_block_sequence)?
+// | block_content
+// | indentless_block_sequence
+// block_node ::= ALIAS
+// | properties block_content?
+// | block_content
+// flow_node ::= ALIAS
+// | properties flow_content?
+// | flow_content
+// properties ::= TAG ANCHOR? | ANCHOR TAG?
+// block_content ::= block_collection | flow_collection | SCALAR
+// flow_content ::= flow_collection | SCALAR
+// block_collection ::= block_sequence | block_mapping
+// flow_collection ::= flow_sequence | flow_mapping
+// block_sequence ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END
+// indentless_sequence ::= (BLOCK-ENTRY block_node?)+
+// block_mapping ::= BLOCK-MAPPING_START
+// ((KEY block_node_or_indentless_sequence?)?
+// (VALUE block_node_or_indentless_sequence?)?)*
+// BLOCK-END
+// flow_sequence ::= FLOW-SEQUENCE-START
+// (flow_sequence_entry FLOW-ENTRY)*
+// flow_sequence_entry?
+// FLOW-SEQUENCE-END
+// flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+// flow_mapping ::= FLOW-MAPPING-START
+// (flow_mapping_entry FLOW-ENTRY)*
+// flow_mapping_entry?
+// FLOW-MAPPING-END
+// flow_mapping_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+
+// Peek the next token in the token queue.
+func peek_token(parser *yaml_parser_t) *yaml_token_t {
+ if parser.token_available || yaml_parser_fetch_more_tokens(parser) {
+ return &parser.tokens[parser.tokens_head]
+ }
+ return nil
+}
+
+// Remove the next token from the queue (must be called after peek_token).
+func skip_token(parser *yaml_parser_t) {
+ parser.token_available = false
+ parser.tokens_parsed++
+ parser.stream_end_produced = parser.tokens[parser.tokens_head].typ == yaml_STREAM_END_TOKEN
+ parser.tokens_head++
+}
+
+// Get the next event.
+func yaml_parser_parse(parser *yaml_parser_t, event *yaml_event_t) bool {
+ // Erase the event object.
+ *event = yaml_event_t{}
+
+ // No events after the end of the stream or error.
+ if parser.stream_end_produced || parser.error != yaml_NO_ERROR || parser.state == yaml_PARSE_END_STATE {
+ return true
+ }
+
+ // Generate the next event.
+ return yaml_parser_state_machine(parser, event)
+}
+
+// Set parser error.
+func yaml_parser_set_parser_error(parser *yaml_parser_t, problem string, problem_mark yaml_mark_t) bool {
+ parser.error = yaml_PARSER_ERROR
+ parser.problem = problem
+ parser.problem_mark = problem_mark
+ return false
+}
+
+func yaml_parser_set_parser_error_context(parser *yaml_parser_t, context string, context_mark yaml_mark_t, problem string, problem_mark yaml_mark_t) bool {
+ parser.error = yaml_PARSER_ERROR
+ parser.context = context
+ parser.context_mark = context_mark
+ parser.problem = problem
+ parser.problem_mark = problem_mark
+ return false
+}
+
+// State dispatcher.
+func yaml_parser_state_machine(parser *yaml_parser_t, event *yaml_event_t) bool {
+ //trace("yaml_parser_state_machine", "state:", parser.state.String())
+
+ switch parser.state {
+ case yaml_PARSE_STREAM_START_STATE:
+ return yaml_parser_parse_stream_start(parser, event)
+
+ case yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE:
+ return yaml_parser_parse_document_start(parser, event, true)
+
+ case yaml_PARSE_DOCUMENT_START_STATE:
+ return yaml_parser_parse_document_start(parser, event, false)
+
+ case yaml_PARSE_DOCUMENT_CONTENT_STATE:
+ return yaml_parser_parse_document_content(parser, event)
+
+ case yaml_PARSE_DOCUMENT_END_STATE:
+ return yaml_parser_parse_document_end(parser, event)
+
+ case yaml_PARSE_BLOCK_NODE_STATE:
+ return yaml_parser_parse_node(parser, event, true, false)
+
+ case yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE:
+ return yaml_parser_parse_node(parser, event, true, true)
+
+ case yaml_PARSE_FLOW_NODE_STATE:
+ return yaml_parser_parse_node(parser, event, false, false)
+
+ case yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE:
+ return yaml_parser_parse_block_sequence_entry(parser, event, true)
+
+ case yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE:
+ return yaml_parser_parse_block_sequence_entry(parser, event, false)
+
+ case yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE:
+ return yaml_parser_parse_indentless_sequence_entry(parser, event)
+
+ case yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE:
+ return yaml_parser_parse_block_mapping_key(parser, event, true)
+
+ case yaml_PARSE_BLOCK_MAPPING_KEY_STATE:
+ return yaml_parser_parse_block_mapping_key(parser, event, false)
+
+ case yaml_PARSE_BLOCK_MAPPING_VALUE_STATE:
+ return yaml_parser_parse_block_mapping_value(parser, event)
+
+ case yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE:
+ return yaml_parser_parse_flow_sequence_entry(parser, event, true)
+
+ case yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE:
+ return yaml_parser_parse_flow_sequence_entry(parser, event, false)
+
+ case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE:
+ return yaml_parser_parse_flow_sequence_entry_mapping_key(parser, event)
+
+ case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE:
+ return yaml_parser_parse_flow_sequence_entry_mapping_value(parser, event)
+
+ case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE:
+ return yaml_parser_parse_flow_sequence_entry_mapping_end(parser, event)
+
+ case yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE:
+ return yaml_parser_parse_flow_mapping_key(parser, event, true)
+
+ case yaml_PARSE_FLOW_MAPPING_KEY_STATE:
+ return yaml_parser_parse_flow_mapping_key(parser, event, false)
+
+ case yaml_PARSE_FLOW_MAPPING_VALUE_STATE:
+ return yaml_parser_parse_flow_mapping_value(parser, event, false)
+
+ case yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE:
+ return yaml_parser_parse_flow_mapping_value(parser, event, true)
+
+ default:
+ panic("invalid parser state")
+ }
+}
+
+// Parse the production:
+// stream ::= STREAM-START implicit_document? explicit_document* STREAM-END
+// ************
+func yaml_parser_parse_stream_start(parser *yaml_parser_t, event *yaml_event_t) bool {
+ token := peek_token(parser)
+ if token == nil {
+ return false
+ }
+ if token.typ != yaml_STREAM_START_TOKEN {
+ return yaml_parser_set_parser_error(parser, "did not find expected <stream-start>", token.start_mark)
+ }
+ parser.state = yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE
+ *event = yaml_event_t{
+ typ: yaml_STREAM_START_EVENT,
+ start_mark: token.start_mark,
+ end_mark: token.end_mark,
+ encoding: token.encoding,
+ }
+ skip_token(parser)
+ return true
+}
+
+// Parse the productions:
+// implicit_document ::= block_node DOCUMENT-END*
+// *
+// explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*
+// *************************
+func yaml_parser_parse_document_start(parser *yaml_parser_t, event *yaml_event_t, implicit bool) bool {
+
+ token := peek_token(parser)
+ if token == nil {
+ return false
+ }
+
+ // Parse extra document end indicators.
+ if !implicit {
+ for token.typ == yaml_DOCUMENT_END_TOKEN {
+ skip_token(parser)
+ token = peek_token(parser)
+ if token == nil {
+ return false
+ }
+ }
+ }
+
+ if implicit && token.typ != yaml_VERSION_DIRECTIVE_TOKEN &&
+ token.typ != yaml_TAG_DIRECTIVE_TOKEN &&
+ token.typ != yaml_DOCUMENT_START_TOKEN &&
+ token.typ != yaml_STREAM_END_TOKEN {
+ // Parse an implicit document.
+ if !yaml_parser_process_directives(parser, nil, nil) {
+ return false
+ }
+ parser.states = append(parser.states, yaml_PARSE_DOCUMENT_END_STATE)
+ parser.state = yaml_PARSE_BLOCK_NODE_STATE
+
+ *event = yaml_event_t{
+ typ: yaml_DOCUMENT_START_EVENT,
+ start_mark: token.start_mark,
+ end_mark: token.end_mark,
+ }
+
+ } else if token.typ != yaml_STREAM_END_TOKEN {
+ // Parse an explicit document.
+ var version_directive *yaml_version_directive_t
+ var tag_directives []yaml_tag_directive_t
+ start_mark := token.start_mark
+ if !yaml_parser_process_directives(parser, &version_directive, &tag_directives) {
+ return false
+ }
+ token = peek_token(parser)
+ if token == nil {
+ return false
+ }
+ if token.typ != yaml_DOCUMENT_START_TOKEN {
+ yaml_parser_set_parser_error(parser,
+ "did not find expected <document start>", token.start_mark)
+ return false
+ }
+ parser.states = append(parser.states, yaml_PARSE_DOCUMENT_END_STATE)
+ parser.state = yaml_PARSE_DOCUMENT_CONTENT_STATE
+ end_mark := token.end_mark
+
+ *event = yaml_event_t{
+ typ: yaml_DOCUMENT_START_EVENT,
+ start_mark: start_mark,
+ end_mark: end_mark,
+ version_directive: version_directive,
+ tag_directives: tag_directives,
+ implicit: false,
+ }
+ skip_token(parser)
+
+ } else {
+ // Parse the stream end.
+ parser.state = yaml_PARSE_END_STATE
+ *event = yaml_event_t{
+ typ: yaml_STREAM_END_EVENT,
+ start_mark: token.start_mark,
+ end_mark: token.end_mark,
+ }
+ skip_token(parser)
+ }
+
+ return true
+}
+
+// Parse the productions:
+// explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*
+// ***********
+//
+func yaml_parser_parse_document_content(parser *yaml_parser_t, event *yaml_event_t) bool {
+ token := peek_token(parser)
+ if token == nil {
+ return false
+ }
+ if token.typ == yaml_VERSION_DIRECTIVE_TOKEN ||
+ token.typ == yaml_TAG_DIRECTIVE_TOKEN ||
+ token.typ == yaml_DOCUMENT_START_TOKEN ||
+ token.typ == yaml_DOCUMENT_END_TOKEN ||
+ token.typ == yaml_STREAM_END_TOKEN {
+ parser.state = parser.states[len(parser.states)-1]
+ parser.states = parser.states[:len(parser.states)-1]
+ return yaml_parser_process_empty_scalar(parser, event,
+ token.start_mark)
+ }
+ return yaml_parser_parse_node(parser, event, true, false)
+}
+
+// Parse the productions:
+// implicit_document ::= block_node DOCUMENT-END*
+// *************
+// explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*
+//
+func yaml_parser_parse_document_end(parser *yaml_parser_t, event *yaml_event_t) bool {
+ token := peek_token(parser)
+ if token == nil {
+ return false
+ }
+
+ start_mark := token.start_mark
+ end_mark := token.start_mark
+
+ implicit := true
+ if token.typ == yaml_DOCUMENT_END_TOKEN {
+ end_mark = token.end_mark
+ skip_token(parser)
+ implicit = false
+ }
+
+ parser.tag_directives = parser.tag_directives[:0]
+
+ parser.state = yaml_PARSE_DOCUMENT_START_STATE
+ *event = yaml_event_t{
+ typ: yaml_DOCUMENT_END_EVENT,
+ start_mark: start_mark,
+ end_mark: end_mark,
+ implicit: implicit,
+ }
+ return true
+}
+
+// Parse the productions:
+// block_node_or_indentless_sequence ::=
+// ALIAS
+// *****
+// | properties (block_content | indentless_block_sequence)?
+// ********** *
+// | block_content | indentless_block_sequence
+// *
+// block_node ::= ALIAS
+// *****
+// | properties block_content?
+// ********** *
+// | block_content
+// *
+// flow_node ::= ALIAS
+// *****
+// | properties flow_content?
+// ********** *
+// | flow_content
+// *
+// properties ::= TAG ANCHOR? | ANCHOR TAG?
+// *************************
+// block_content ::= block_collection | flow_collection | SCALAR
+// ******
+// flow_content ::= flow_collection | SCALAR
+// ******
+func yaml_parser_parse_node(parser *yaml_parser_t, event *yaml_event_t, block, indentless_sequence bool) bool {
+ //defer trace("yaml_parser_parse_node", "block:", block, "indentless_sequence:", indentless_sequence)()
+
+ token := peek_token(parser)
+ if token == nil {
+ return false
+ }
+
+ if token.typ == yaml_ALIAS_TOKEN {
+ parser.state = parser.states[len(parser.states)-1]
+ parser.states = parser.states[:len(parser.states)-1]
+ *event = yaml_event_t{
+ typ: yaml_ALIAS_EVENT,
+ start_mark: token.start_mark,
+ end_mark: token.end_mark,
+ anchor: token.value,
+ }
+ skip_token(parser)
+ return true
+ }
+
+ start_mark := token.start_mark
+ end_mark := token.start_mark
+
+ var tag_token bool
+ var tag_handle, tag_suffix, anchor []byte
+ var tag_mark yaml_mark_t
+ if token.typ == yaml_ANCHOR_TOKEN {
+ anchor = token.value
+ start_mark = token.start_mark
+ end_mark = token.end_mark
+ skip_token(parser)
+ token = peek_token(parser)
+ if token == nil {
+ return false
+ }
+ if token.typ == yaml_TAG_TOKEN {
+ tag_token = true
+ tag_handle = token.value
+ tag_suffix = token.suffix
+ tag_mark = token.start_mark
+ end_mark = token.end_mark
+ skip_token(parser)
+ token = peek_token(parser)
+ if token == nil {
+ return false
+ }
+ }
+ } else if token.typ == yaml_TAG_TOKEN {
+ tag_token = true
+ tag_handle = token.value
+ tag_suffix = token.suffix
+ start_mark = token.start_mark
+ tag_mark = token.start_mark
+ end_mark = token.end_mark
+ skip_token(parser)
+ token = peek_token(parser)
+ if token == nil {
+ return false
+ }
+ if token.typ == yaml_ANCHOR_TOKEN {
+ anchor = token.value
+ end_mark = token.end_mark
+ skip_token(parser)
+ token = peek_token(parser)
+ if token == nil {
+ return false
+ }
+ }
+ }
+
+ var tag []byte
+ if tag_token {
+ if len(tag_handle) == 0 {
+ tag = tag_suffix
+ tag_suffix = nil
+ } else {
+ for i := range parser.tag_directives {
+ if bytes.Equal(parser.tag_directives[i].handle, tag_handle) {
+ tag = append([]byte(nil), parser.tag_directives[i].prefix...)
+ tag = append(tag, tag_suffix...)
+ break
+ }
+ }
+ if len(tag) == 0 {
+ yaml_parser_set_parser_error_context(parser,
+ "while parsing a node", start_mark,
+ "found undefined tag handle", tag_mark)
+ return false
+ }
+ }
+ }
+
+ implicit := len(tag) == 0
+ if indentless_sequence && token.typ == yaml_BLOCK_ENTRY_TOKEN {
+ end_mark = token.end_mark
+ parser.state = yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE
+ *event = yaml_event_t{
+ typ: yaml_SEQUENCE_START_EVENT,
+ start_mark: start_mark,
+ end_mark: end_mark,
+ anchor: anchor,
+ tag: tag,
+ implicit: implicit,
+ style: yaml_style_t(yaml_BLOCK_SEQUENCE_STYLE),
+ }
+ return true
+ }
+ if token.typ == yaml_SCALAR_TOKEN {
+ var plain_implicit, quoted_implicit bool
+ end_mark = token.end_mark
+ if (len(tag) == 0 && token.style == yaml_PLAIN_SCALAR_STYLE) || (len(tag) == 1 && tag[0] == '!') {
+ plain_implicit = true
+ } else if len(tag) == 0 {
+ quoted_implicit = true
+ }
+ parser.state = parser.states[len(parser.states)-1]
+ parser.states = parser.states[:len(parser.states)-1]
+
+ *event = yaml_event_t{
+ typ: yaml_SCALAR_EVENT,
+ start_mark: start_mark,
+ end_mark: end_mark,
+ anchor: anchor,
+ tag: tag,
+ value: token.value,
+ implicit: plain_implicit,
+ quoted_implicit: quoted_implicit,
+ style: yaml_style_t(token.style),
+ }
+ skip_token(parser)
+ return true
+ }
+ if token.typ == yaml_FLOW_SEQUENCE_START_TOKEN {
+ // [Go] Some of the events below can be merged as they differ only on style.
+ end_mark = token.end_mark
+ parser.state = yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE
+ *event = yaml_event_t{
+ typ: yaml_SEQUENCE_START_EVENT,
+ start_mark: start_mark,
+ end_mark: end_mark,
+ anchor: anchor,
+ tag: tag,
+ implicit: implicit,
+ style: yaml_style_t(yaml_FLOW_SEQUENCE_STYLE),
+ }
+ return true
+ }
+ if token.typ == yaml_FLOW_MAPPING_START_TOKEN {
+ end_mark = token.end_mark
+ parser.state = yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE
+ *event = yaml_event_t{
+ typ: yaml_MAPPING_START_EVENT,
+ start_mark: start_mark,
+ end_mark: end_mark,
+ anchor: anchor,
+ tag: tag,
+ implicit: implicit,
+ style: yaml_style_t(yaml_FLOW_MAPPING_STYLE),
+ }
+ return true
+ }
+ if block && token.typ == yaml_BLOCK_SEQUENCE_START_TOKEN {
+ end_mark = token.end_mark
+ parser.state = yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE
+ *event = yaml_event_t{
+ typ: yaml_SEQUENCE_START_EVENT,
+ start_mark: start_mark,
+ end_mark: end_mark,
+ anchor: anchor,
+ tag: tag,
+ implicit: implicit,
+ style: yaml_style_t(yaml_BLOCK_SEQUENCE_STYLE),
+ }
+ return true
+ }
+ if block && token.typ == yaml_BLOCK_MAPPING_START_TOKEN {
+ end_mark = token.end_mark
+ parser.state = yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE
+ *event = yaml_event_t{
+ typ: yaml_MAPPING_START_EVENT,
+ start_mark: start_mark,
+ end_mark: end_mark,
+ anchor: anchor,
+ tag: tag,
+ implicit: implicit,
+ style: yaml_style_t(yaml_BLOCK_MAPPING_STYLE),
+ }
+ return true
+ }
+ if len(anchor) > 0 || len(tag) > 0 {
+ parser.state = parser.states[len(parser.states)-1]
+ parser.states = parser.states[:len(parser.states)-1]
+
+ *event = yaml_event_t{
+ typ: yaml_SCALAR_EVENT,
+ start_mark: start_mark,
+ end_mark: end_mark,
+ anchor: anchor,
+ tag: tag,
+ implicit: implicit,
+ quoted_implicit: false,
+ style: yaml_style_t(yaml_PLAIN_SCALAR_STYLE),
+ }
+ return true
+ }
+
+ context := "while parsing a flow node"
+ if block {
+ context = "while parsing a block node"
+ }
+ yaml_parser_set_parser_error_context(parser, context, start_mark,
+ "did not find expected node content", token.start_mark)
+ return false
+}
+
+// Parse the productions:
+// block_sequence ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END
+// ******************** *********** * *********
+//
+func yaml_parser_parse_block_sequence_entry(parser *yaml_parser_t, event *yaml_event_t, first bool) bool {
+ if first {
+ token := peek_token(parser)
+ parser.marks = append(parser.marks, token.start_mark)
+ skip_token(parser)
+ }
+
+ token := peek_token(parser)
+ if token == nil {
+ return false
+ }
+
+ if token.typ == yaml_BLOCK_ENTRY_TOKEN {
+ mark := token.end_mark
+ skip_token(parser)
+ token = peek_token(parser)
+ if token == nil {
+ return false
+ }
+ if token.typ != yaml_BLOCK_ENTRY_TOKEN && token.typ != yaml_BLOCK_END_TOKEN {
+ parser.states = append(parser.states, yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE)
+ return yaml_parser_parse_node(parser, event, true, false)
+ } else {
+ parser.state = yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE
+ return yaml_parser_process_empty_scalar(parser, event, mark)
+ }
+ }
+ if token.typ == yaml_BLOCK_END_TOKEN {
+ parser.state = parser.states[len(parser.states)-1]
+ parser.states = parser.states[:len(parser.states)-1]
+ parser.marks = parser.marks[:len(parser.marks)-1]
+
+ *event = yaml_event_t{
+ typ: yaml_SEQUENCE_END_EVENT,
+ start_mark: token.start_mark,
+ end_mark: token.end_mark,
+ }
+
+ skip_token(parser)
+ return true
+ }
+
+ context_mark := parser.marks[len(parser.marks)-1]
+ parser.marks = parser.marks[:len(parser.marks)-1]
+ return yaml_parser_set_parser_error_context(parser,
+ "while parsing a block collection", context_mark,
+ "did not find expected '-' indicator", token.start_mark)
+}
+
+// Parse the productions:
+// indentless_sequence ::= (BLOCK-ENTRY block_node?)+
+// *********** *
+func yaml_parser_parse_indentless_sequence_entry(parser *yaml_parser_t, event *yaml_event_t) bool {
+ token := peek_token(parser)
+ if token == nil {
+ return false
+ }
+
+ if token.typ == yaml_BLOCK_ENTRY_TOKEN {
+ mark := token.end_mark
+ skip_token(parser)
+ token = peek_token(parser)
+ if token == nil {
+ return false
+ }
+ if token.typ != yaml_BLOCK_ENTRY_TOKEN &&
+ token.typ != yaml_KEY_TOKEN &&
+ token.typ != yaml_VALUE_TOKEN &&
+ token.typ != yaml_BLOCK_END_TOKEN {
+ parser.states = append(parser.states, yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE)
+ return yaml_parser_parse_node(parser, event, true, false)
+ }
+ parser.state = yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE
+ return yaml_parser_process_empty_scalar(parser, event, mark)
+ }
+ parser.state = parser.states[len(parser.states)-1]
+ parser.states = parser.states[:len(parser.states)-1]
+
+ *event = yaml_event_t{
+ typ: yaml_SEQUENCE_END_EVENT,
+ start_mark: token.start_mark,
+ end_mark: token.start_mark, // [Go] Shouldn't this be token.end_mark?
+ }
+ return true
+}
+
+// Parse the productions:
+// block_mapping ::= BLOCK-MAPPING_START
+// *******************
+// ((KEY block_node_or_indentless_sequence?)?
+// *** *
+// (VALUE block_node_or_indentless_sequence?)?)*
+//
+// BLOCK-END
+// *********
+//
+func yaml_parser_parse_block_mapping_key(parser *yaml_parser_t, event *yaml_event_t, first bool) bool {
+ if first {
+ token := peek_token(parser)
+ parser.marks = append(parser.marks, token.start_mark)
+ skip_token(parser)
+ }
+
+ token := peek_token(parser)
+ if token == nil {
+ return false
+ }
+
+ if token.typ == yaml_KEY_TOKEN {
+ mark := token.end_mark
+ skip_token(parser)
+ token = peek_token(parser)
+ if token == nil {
+ return false
+ }
+ if token.typ != yaml_KEY_TOKEN &&
+ token.typ != yaml_VALUE_TOKEN &&
+ token.typ != yaml_BLOCK_END_TOKEN {
+ parser.states = append(parser.states, yaml_PARSE_BLOCK_MAPPING_VALUE_STATE)
+ return yaml_parser_parse_node(parser, event, true, true)
+ } else {
+ parser.state = yaml_PARSE_BLOCK_MAPPING_VALUE_STATE
+ return yaml_parser_process_empty_scalar(parser, event, mark)
+ }
+ } else if token.typ == yaml_BLOCK_END_TOKEN {
+ parser.state = parser.states[len(parser.states)-1]
+ parser.states = parser.states[:len(parser.states)-1]
+ parser.marks = parser.marks[:len(parser.marks)-1]
+ *event = yaml_event_t{
+ typ: yaml_MAPPING_END_EVENT,
+ start_mark: token.start_mark,
+ end_mark: token.end_mark,
+ }
+ skip_token(parser)
+ return true
+ }
+
+ context_mark := parser.marks[len(parser.marks)-1]
+ parser.marks = parser.marks[:len(parser.marks)-1]
+ return yaml_parser_set_parser_error_context(parser,
+ "while parsing a block mapping", context_mark,
+ "did not find expected key", token.start_mark)
+}
+
+// Parse the productions:
+// block_mapping ::= BLOCK-MAPPING_START
+//
+// ((KEY block_node_or_indentless_sequence?)?
+//
+// (VALUE block_node_or_indentless_sequence?)?)*
+// ***** *
+// BLOCK-END
+//
+//
+func yaml_parser_parse_block_mapping_value(parser *yaml_parser_t, event *yaml_event_t) bool {
+ token := peek_token(parser)
+ if token == nil {
+ return false
+ }
+ if token.typ == yaml_VALUE_TOKEN {
+ mark := token.end_mark
+ skip_token(parser)
+ token = peek_token(parser)
+ if token == nil {
+ return false
+ }
+ if token.typ != yaml_KEY_TOKEN &&
+ token.typ != yaml_VALUE_TOKEN &&
+ token.typ != yaml_BLOCK_END_TOKEN {
+ parser.states = append(parser.states, yaml_PARSE_BLOCK_MAPPING_KEY_STATE)
+ return yaml_parser_parse_node(parser, event, true, true)
+ }
+ parser.state = yaml_PARSE_BLOCK_MAPPING_KEY_STATE
+ return yaml_parser_process_empty_scalar(parser, event, mark)
+ }
+ parser.state = yaml_PARSE_BLOCK_MAPPING_KEY_STATE
+ return yaml_parser_process_empty_scalar(parser, event, token.start_mark)
+}
+
+// Parse the productions:
+// flow_sequence ::= FLOW-SEQUENCE-START
+// *******************
+// (flow_sequence_entry FLOW-ENTRY)*
+// * **********
+// flow_sequence_entry?
+// *
+// FLOW-SEQUENCE-END
+// *****************
+// flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+// *
+//
+func yaml_parser_parse_flow_sequence_entry(parser *yaml_parser_t, event *yaml_event_t, first bool) bool {
+ if first {
+ token := peek_token(parser)
+ parser.marks = append(parser.marks, token.start_mark)
+ skip_token(parser)
+ }
+ token := peek_token(parser)
+ if token == nil {
+ return false
+ }
+ if token.typ != yaml_FLOW_SEQUENCE_END_TOKEN {
+ if !first {
+ if token.typ == yaml_FLOW_ENTRY_TOKEN {
+ skip_token(parser)
+ token = peek_token(parser)
+ if token == nil {
+ return false
+ }
+ } else {
+ context_mark := parser.marks[len(parser.marks)-1]
+ parser.marks = parser.marks[:len(parser.marks)-1]
+ return yaml_parser_set_parser_error_context(parser,
+ "while parsing a flow sequence", context_mark,
+ "did not find expected ',' or ']'", token.start_mark)
+ }
+ }
+
+ if token.typ == yaml_KEY_TOKEN {
+ parser.state = yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE
+ *event = yaml_event_t{
+ typ: yaml_MAPPING_START_EVENT,
+ start_mark: token.start_mark,
+ end_mark: token.end_mark,
+ implicit: true,
+ style: yaml_style_t(yaml_FLOW_MAPPING_STYLE),
+ }
+ skip_token(parser)
+ return true
+ } else if token.typ != yaml_FLOW_SEQUENCE_END_TOKEN {
+ parser.states = append(parser.states, yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE)
+ return yaml_parser_parse_node(parser, event, false, false)
+ }
+ }
+
+ parser.state = parser.states[len(parser.states)-1]
+ parser.states = parser.states[:len(parser.states)-1]
+ parser.marks = parser.marks[:len(parser.marks)-1]
+
+ *event = yaml_event_t{
+ typ: yaml_SEQUENCE_END_EVENT,
+ start_mark: token.start_mark,
+ end_mark: token.end_mark,
+ }
+
+ skip_token(parser)
+ return true
+}
+
+//
+// Parse the productions:
+// flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+// *** *
+//
+func yaml_parser_parse_flow_sequence_entry_mapping_key(parser *yaml_parser_t, event *yaml_event_t) bool {
+ token := peek_token(parser)
+ if token == nil {
+ return false
+ }
+ if token.typ != yaml_VALUE_TOKEN &&
+ token.typ != yaml_FLOW_ENTRY_TOKEN &&
+ token.typ != yaml_FLOW_SEQUENCE_END_TOKEN {
+ parser.states = append(parser.states, yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE)
+ return yaml_parser_parse_node(parser, event, false, false)
+ }
+ mark := token.end_mark
+ skip_token(parser)
+ parser.state = yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE
+ return yaml_parser_process_empty_scalar(parser, event, mark)
+}
+
+// Parse the productions:
+// flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+// ***** *
+//
+func yaml_parser_parse_flow_sequence_entry_mapping_value(parser *yaml_parser_t, event *yaml_event_t) bool {
+ token := peek_token(parser)
+ if token == nil {
+ return false
+ }
+ if token.typ == yaml_VALUE_TOKEN {
+ skip_token(parser)
+ token := peek_token(parser)
+ if token == nil {
+ return false
+ }
+ if token.typ != yaml_FLOW_ENTRY_TOKEN && token.typ != yaml_FLOW_SEQUENCE_END_TOKEN {
+ parser.states = append(parser.states, yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE)
+ return yaml_parser_parse_node(parser, event, false, false)
+ }
+ }
+ parser.state = yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE
+ return yaml_parser_process_empty_scalar(parser, event, token.start_mark)
+}
+
+// Parse the productions:
+// flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+// *
+//
+func yaml_parser_parse_flow_sequence_entry_mapping_end(parser *yaml_parser_t, event *yaml_event_t) bool {
+ token := peek_token(parser)
+ if token == nil {
+ return false
+ }
+ parser.state = yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE
+ *event = yaml_event_t{
+ typ: yaml_MAPPING_END_EVENT,
+ start_mark: token.start_mark,
+ end_mark: token.start_mark, // [Go] Shouldn't this be end_mark?
+ }
+ return true
+}
+
+// Parse the productions:
+// flow_mapping ::= FLOW-MAPPING-START
+// ******************
+// (flow_mapping_entry FLOW-ENTRY)*
+// * **********
+// flow_mapping_entry?
+// ******************
+// FLOW-MAPPING-END
+// ****************
+// flow_mapping_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+// * *** *
+//
+func yaml_parser_parse_flow_mapping_key(parser *yaml_parser_t, event *yaml_event_t, first bool) bool {
+ if first {
+ token := peek_token(parser)
+ parser.marks = append(parser.marks, token.start_mark)
+ skip_token(parser)
+ }
+
+ token := peek_token(parser)
+ if token == nil {
+ return false
+ }
+
+ if token.typ != yaml_FLOW_MAPPING_END_TOKEN {
+ if !first {
+ if token.typ == yaml_FLOW_ENTRY_TOKEN {
+ skip_token(parser)
+ token = peek_token(parser)
+ if token == nil {
+ return false
+ }
+ } else {
+ context_mark := parser.marks[len(parser.marks)-1]
+ parser.marks = parser.marks[:len(parser.marks)-1]
+ return yaml_parser_set_parser_error_context(parser,
+ "while parsing a flow mapping", context_mark,
+ "did not find expected ',' or '}'", token.start_mark)
+ }
+ }
+
+ if token.typ == yaml_KEY_TOKEN {
+ skip_token(parser)
+ token = peek_token(parser)
+ if token == nil {
+ return false
+ }
+ if token.typ != yaml_VALUE_TOKEN &&
+ token.typ != yaml_FLOW_ENTRY_TOKEN &&
+ token.typ != yaml_FLOW_MAPPING_END_TOKEN {
+ parser.states = append(parser.states, yaml_PARSE_FLOW_MAPPING_VALUE_STATE)
+ return yaml_parser_parse_node(parser, event, false, false)
+ } else {
+ parser.state = yaml_PARSE_FLOW_MAPPING_VALUE_STATE
+ return yaml_parser_process_empty_scalar(parser, event, token.start_mark)
+ }
+ } else if token.typ != yaml_FLOW_MAPPING_END_TOKEN {
+ parser.states = append(parser.states, yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE)
+ return yaml_parser_parse_node(parser, event, false, false)
+ }
+ }
+
+ parser.state = parser.states[len(parser.states)-1]
+ parser.states = parser.states[:len(parser.states)-1]
+ parser.marks = parser.marks[:len(parser.marks)-1]
+ *event = yaml_event_t{
+ typ: yaml_MAPPING_END_EVENT,
+ start_mark: token.start_mark,
+ end_mark: token.end_mark,
+ }
+ skip_token(parser)
+ return true
+}
+
+// Parse the productions:
+// flow_mapping_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)?
+// * ***** *
+//
+func yaml_parser_parse_flow_mapping_value(parser *yaml_parser_t, event *yaml_event_t, empty bool) bool {
+ token := peek_token(parser)
+ if token == nil {
+ return false
+ }
+ if empty {
+ parser.state = yaml_PARSE_FLOW_MAPPING_KEY_STATE
+ return yaml_parser_process_empty_scalar(parser, event, token.start_mark)
+ }
+ if token.typ == yaml_VALUE_TOKEN {
+ skip_token(parser)
+ token = peek_token(parser)
+ if token == nil {
+ return false
+ }
+ if token.typ != yaml_FLOW_ENTRY_TOKEN && token.typ != yaml_FLOW_MAPPING_END_TOKEN {
+ parser.states = append(parser.states, yaml_PARSE_FLOW_MAPPING_KEY_STATE)
+ return yaml_parser_parse_node(parser, event, false, false)
+ }
+ }
+ parser.state = yaml_PARSE_FLOW_MAPPING_KEY_STATE
+ return yaml_parser_process_empty_scalar(parser, event, token.start_mark)
+}
+
+// Generate an empty scalar event.
+func yaml_parser_process_empty_scalar(parser *yaml_parser_t, event *yaml_event_t, mark yaml_mark_t) bool {
+ *event = yaml_event_t{
+ typ: yaml_SCALAR_EVENT,
+ start_mark: mark,
+ end_mark: mark,
+ value: nil, // Empty
+ implicit: true,
+ style: yaml_style_t(yaml_PLAIN_SCALAR_STYLE),
+ }
+ return true
+}
+
+var default_tag_directives = []yaml_tag_directive_t{
+ {[]byte("!"), []byte("!")},
+ {[]byte("!!"), []byte("tag:yaml.org,2002:")},
+}
+
+// Parse directives.
+func yaml_parser_process_directives(parser *yaml_parser_t,
+ version_directive_ref **yaml_version_directive_t,
+ tag_directives_ref *[]yaml_tag_directive_t) bool {
+
+ var version_directive *yaml_version_directive_t
+ var tag_directives []yaml_tag_directive_t
+
+ token := peek_token(parser)
+ if token == nil {
+ return false
+ }
+
+ for token.typ == yaml_VERSION_DIRECTIVE_TOKEN || token.typ == yaml_TAG_DIRECTIVE_TOKEN {
+ if token.typ == yaml_VERSION_DIRECTIVE_TOKEN {
+ if version_directive != nil {
+ yaml_parser_set_parser_error(parser,
+ "found duplicate %YAML directive", token.start_mark)
+ return false
+ }
+ if token.major != 1 || token.minor != 1 {
+ yaml_parser_set_parser_error(parser,
+ "found incompatible YAML document", token.start_mark)
+ return false
+ }
+ version_directive = &yaml_version_directive_t{
+ major: token.major,
+ minor: token.minor,
+ }
+ } else if token.typ == yaml_TAG_DIRECTIVE_TOKEN {
+ value := yaml_tag_directive_t{
+ handle: token.value,
+ prefix: token.prefix,
+ }
+ if !yaml_parser_append_tag_directive(parser, value, false, token.start_mark) {
+ return false
+ }
+ tag_directives = append(tag_directives, value)
+ }
+
+ skip_token(parser)
+ token = peek_token(parser)
+ if token == nil {
+ return false
+ }
+ }
+
+ for i := range default_tag_directives {
+ if !yaml_parser_append_tag_directive(parser, default_tag_directives[i], true, token.start_mark) {
+ return false
+ }
+ }
+
+ if version_directive_ref != nil {
+ *version_directive_ref = version_directive
+ }
+ if tag_directives_ref != nil {
+ *tag_directives_ref = tag_directives
+ }
+ return true
+}
+
+// Append a tag directive to the directives stack.
+func yaml_parser_append_tag_directive(parser *yaml_parser_t, value yaml_tag_directive_t, allow_duplicates bool, mark yaml_mark_t) bool {
+ for i := range parser.tag_directives {
+ if bytes.Equal(value.handle, parser.tag_directives[i].handle) {
+ if allow_duplicates {
+ return true
+ }
+ return yaml_parser_set_parser_error(parser, "found duplicate %TAG directive", mark)
+ }
+ }
+
+ // [Go] I suspect the copy is unnecessary. This was likely done
+ // because there was no way to track ownership of the data.
+ value_copy := yaml_tag_directive_t{
+ handle: make([]byte, len(value.handle)),
+ prefix: make([]byte, len(value.prefix)),
+ }
+ copy(value_copy.handle, value.handle)
+ copy(value_copy.prefix, value.prefix)
+ parser.tag_directives = append(parser.tag_directives, value_copy)
+ return true
+}
diff --git a/vendor/gopkg.in/yaml.v2/readerc.go b/vendor/gopkg.in/yaml.v2/readerc.go
new file mode 100644
index 0000000..7c1f5fa
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/readerc.go
@@ -0,0 +1,412 @@
+package yaml
+
+import (
+ "io"
+)
+
+// Set the reader error and return 0.
+func yaml_parser_set_reader_error(parser *yaml_parser_t, problem string, offset int, value int) bool {
+ parser.error = yaml_READER_ERROR
+ parser.problem = problem
+ parser.problem_offset = offset
+ parser.problem_value = value
+ return false
+}
+
+// Byte order marks.
+const (
+ bom_UTF8 = "\xef\xbb\xbf"
+ bom_UTF16LE = "\xff\xfe"
+ bom_UTF16BE = "\xfe\xff"
+)
+
+// Determine the input stream encoding by checking the BOM symbol. If no BOM is
+// found, the UTF-8 encoding is assumed. Return 1 on success, 0 on failure.
+func yaml_parser_determine_encoding(parser *yaml_parser_t) bool {
+ // Ensure that we had enough bytes in the raw buffer.
+ for !parser.eof && len(parser.raw_buffer)-parser.raw_buffer_pos < 3 {
+ if !yaml_parser_update_raw_buffer(parser) {
+ return false
+ }
+ }
+
+ // Determine the encoding.
+ buf := parser.raw_buffer
+ pos := parser.raw_buffer_pos
+ avail := len(buf) - pos
+ if avail >= 2 && buf[pos] == bom_UTF16LE[0] && buf[pos+1] == bom_UTF16LE[1] {
+ parser.encoding = yaml_UTF16LE_ENCODING
+ parser.raw_buffer_pos += 2
+ parser.offset += 2
+ } else if avail >= 2 && buf[pos] == bom_UTF16BE[0] && buf[pos+1] == bom_UTF16BE[1] {
+ parser.encoding = yaml_UTF16BE_ENCODING
+ parser.raw_buffer_pos += 2
+ parser.offset += 2
+ } else if avail >= 3 && buf[pos] == bom_UTF8[0] && buf[pos+1] == bom_UTF8[1] && buf[pos+2] == bom_UTF8[2] {
+ parser.encoding = yaml_UTF8_ENCODING
+ parser.raw_buffer_pos += 3
+ parser.offset += 3
+ } else {
+ parser.encoding = yaml_UTF8_ENCODING
+ }
+ return true
+}
+
+// Update the raw buffer.
+func yaml_parser_update_raw_buffer(parser *yaml_parser_t) bool {
+ size_read := 0
+
+ // Return if the raw buffer is full.
+ if parser.raw_buffer_pos == 0 && len(parser.raw_buffer) == cap(parser.raw_buffer) {
+ return true
+ }
+
+ // Return on EOF.
+ if parser.eof {
+ return true
+ }
+
+ // Move the remaining bytes in the raw buffer to the beginning.
+ if parser.raw_buffer_pos > 0 && parser.raw_buffer_pos < len(parser.raw_buffer) {
+ copy(parser.raw_buffer, parser.raw_buffer[parser.raw_buffer_pos:])
+ }
+ parser.raw_buffer = parser.raw_buffer[:len(parser.raw_buffer)-parser.raw_buffer_pos]
+ parser.raw_buffer_pos = 0
+
+ // Call the read handler to fill the buffer.
+ size_read, err := parser.read_handler(parser, parser.raw_buffer[len(parser.raw_buffer):cap(parser.raw_buffer)])
+ parser.raw_buffer = parser.raw_buffer[:len(parser.raw_buffer)+size_read]
+ if err == io.EOF {
+ parser.eof = true
+ } else if err != nil {
+ return yaml_parser_set_reader_error(parser, "input error: "+err.Error(), parser.offset, -1)
+ }
+ return true
+}
+
+// Ensure that the buffer contains at least `length` characters.
+// Return true on success, false on failure.
+//
+// The length is supposed to be significantly less that the buffer size.
+func yaml_parser_update_buffer(parser *yaml_parser_t, length int) bool {
+ if parser.read_handler == nil {
+ panic("read handler must be set")
+ }
+
+ // [Go] This function was changed to guarantee the requested length size at EOF.
+ // The fact we need to do this is pretty awful, but the description above implies
+ // for that to be the case, and there are tests
+
+ // If the EOF flag is set and the raw buffer is empty, do nothing.
+ if parser.eof && parser.raw_buffer_pos == len(parser.raw_buffer) {
+ // [Go] ACTUALLY! Read the documentation of this function above.
+ // This is just broken. To return true, we need to have the
+ // given length in the buffer. Not doing that means every single
+ // check that calls this function to make sure the buffer has a
+ // given length is Go) panicking; or C) accessing invalid memory.
+ //return true
+ }
+
+ // Return if the buffer contains enough characters.
+ if parser.unread >= length {
+ return true
+ }
+
+ // Determine the input encoding if it is not known yet.
+ if parser.encoding == yaml_ANY_ENCODING {
+ if !yaml_parser_determine_encoding(parser) {
+ return false
+ }
+ }
+
+ // Move the unread characters to the beginning of the buffer.
+ buffer_len := len(parser.buffer)
+ if parser.buffer_pos > 0 && parser.buffer_pos < buffer_len {
+ copy(parser.buffer, parser.buffer[parser.buffer_pos:])
+ buffer_len -= parser.buffer_pos
+ parser.buffer_pos = 0
+ } else if parser.buffer_pos == buffer_len {
+ buffer_len = 0
+ parser.buffer_pos = 0
+ }
+
+ // Open the whole buffer for writing, and cut it before returning.
+ parser.buffer = parser.buffer[:cap(parser.buffer)]
+
+ // Fill the buffer until it has enough characters.
+ first := true
+ for parser.unread < length {
+
+ // Fill the raw buffer if necessary.
+ if !first || parser.raw_buffer_pos == len(parser.raw_buffer) {
+ if !yaml_parser_update_raw_buffer(parser) {
+ parser.buffer = parser.buffer[:buffer_len]
+ return false
+ }
+ }
+ first = false
+
+ // Decode the raw buffer.
+ inner:
+ for parser.raw_buffer_pos != len(parser.raw_buffer) {
+ var value rune
+ var width int
+
+ raw_unread := len(parser.raw_buffer) - parser.raw_buffer_pos
+
+ // Decode the next character.
+ switch parser.encoding {
+ case yaml_UTF8_ENCODING:
+ // Decode a UTF-8 character. Check RFC 3629
+ // (http://www.ietf.org/rfc/rfc3629.txt) for more details.
+ //
+ // The following table (taken from the RFC) is used for
+ // decoding.
+ //
+ // Char. number range | UTF-8 octet sequence
+ // (hexadecimal) | (binary)
+ // --------------------+------------------------------------
+ // 0000 0000-0000 007F | 0xxxxxxx
+ // 0000 0080-0000 07FF | 110xxxxx 10xxxxxx
+ // 0000 0800-0000 FFFF | 1110xxxx 10xxxxxx 10xxxxxx
+ // 0001 0000-0010 FFFF | 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
+ //
+ // Additionally, the characters in the range 0xD800-0xDFFF
+ // are prohibited as they are reserved for use with UTF-16
+ // surrogate pairs.
+
+ // Determine the length of the UTF-8 sequence.
+ octet := parser.raw_buffer[parser.raw_buffer_pos]
+ switch {
+ case octet&0x80 == 0x00:
+ width = 1
+ case octet&0xE0 == 0xC0:
+ width = 2
+ case octet&0xF0 == 0xE0:
+ width = 3
+ case octet&0xF8 == 0xF0:
+ width = 4
+ default:
+ // The leading octet is invalid.
+ return yaml_parser_set_reader_error(parser,
+ "invalid leading UTF-8 octet",
+ parser.offset, int(octet))
+ }
+
+ // Check if the raw buffer contains an incomplete character.
+ if width > raw_unread {
+ if parser.eof {
+ return yaml_parser_set_reader_error(parser,
+ "incomplete UTF-8 octet sequence",
+ parser.offset, -1)
+ }
+ break inner
+ }
+
+ // Decode the leading octet.
+ switch {
+ case octet&0x80 == 0x00:
+ value = rune(octet & 0x7F)
+ case octet&0xE0 == 0xC0:
+ value = rune(octet & 0x1F)
+ case octet&0xF0 == 0xE0:
+ value = rune(octet & 0x0F)
+ case octet&0xF8 == 0xF0:
+ value = rune(octet & 0x07)
+ default:
+ value = 0
+ }
+
+ // Check and decode the trailing octets.
+ for k := 1; k < width; k++ {
+ octet = parser.raw_buffer[parser.raw_buffer_pos+k]
+
+ // Check if the octet is valid.
+ if (octet & 0xC0) != 0x80 {
+ return yaml_parser_set_reader_error(parser,
+ "invalid trailing UTF-8 octet",
+ parser.offset+k, int(octet))
+ }
+
+ // Decode the octet.
+ value = (value << 6) + rune(octet&0x3F)
+ }
+
+ // Check the length of the sequence against the value.
+ switch {
+ case width == 1:
+ case width == 2 && value >= 0x80:
+ case width == 3 && value >= 0x800:
+ case width == 4 && value >= 0x10000:
+ default:
+ return yaml_parser_set_reader_error(parser,
+ "invalid length of a UTF-8 sequence",
+ parser.offset, -1)
+ }
+
+ // Check the range of the value.
+ if value >= 0xD800 && value <= 0xDFFF || value > 0x10FFFF {
+ return yaml_parser_set_reader_error(parser,
+ "invalid Unicode character",
+ parser.offset, int(value))
+ }
+
+ case yaml_UTF16LE_ENCODING, yaml_UTF16BE_ENCODING:
+ var low, high int
+ if parser.encoding == yaml_UTF16LE_ENCODING {
+ low, high = 0, 1
+ } else {
+ low, high = 1, 0
+ }
+
+ // The UTF-16 encoding is not as simple as one might
+ // naively think. Check RFC 2781
+ // (http://www.ietf.org/rfc/rfc2781.txt).
+ //
+ // Normally, two subsequent bytes describe a Unicode
+ // character. However a special technique (called a
+ // surrogate pair) is used for specifying character
+ // values larger than 0xFFFF.
+ //
+ // A surrogate pair consists of two pseudo-characters:
+ // high surrogate area (0xD800-0xDBFF)
+ // low surrogate area (0xDC00-0xDFFF)
+ //
+ // The following formulas are used for decoding
+ // and encoding characters using surrogate pairs:
+ //
+ // U = U' + 0x10000 (0x01 00 00 <= U <= 0x10 FF FF)
+ // U' = yyyyyyyyyyxxxxxxxxxx (0 <= U' <= 0x0F FF FF)
+ // W1 = 110110yyyyyyyyyy
+ // W2 = 110111xxxxxxxxxx
+ //
+ // where U is the character value, W1 is the high surrogate
+ // area, W2 is the low surrogate area.
+
+ // Check for incomplete UTF-16 character.
+ if raw_unread < 2 {
+ if parser.eof {
+ return yaml_parser_set_reader_error(parser,
+ "incomplete UTF-16 character",
+ parser.offset, -1)
+ }
+ break inner
+ }
+
+ // Get the character.
+ value = rune(parser.raw_buffer[parser.raw_buffer_pos+low]) +
+ (rune(parser.raw_buffer[parser.raw_buffer_pos+high]) << 8)
+
+ // Check for unexpected low surrogate area.
+ if value&0xFC00 == 0xDC00 {
+ return yaml_parser_set_reader_error(parser,
+ "unexpected low surrogate area",
+ parser.offset, int(value))
+ }
+
+ // Check for a high surrogate area.
+ if value&0xFC00 == 0xD800 {
+ width = 4
+
+ // Check for incomplete surrogate pair.
+ if raw_unread < 4 {
+ if parser.eof {
+ return yaml_parser_set_reader_error(parser,
+ "incomplete UTF-16 surrogate pair",
+ parser.offset, -1)
+ }
+ break inner
+ }
+
+ // Get the next character.
+ value2 := rune(parser.raw_buffer[parser.raw_buffer_pos+low+2]) +
+ (rune(parser.raw_buffer[parser.raw_buffer_pos+high+2]) << 8)
+
+ // Check for a low surrogate area.
+ if value2&0xFC00 != 0xDC00 {
+ return yaml_parser_set_reader_error(parser,
+ "expected low surrogate area",
+ parser.offset+2, int(value2))
+ }
+
+ // Generate the value of the surrogate pair.
+ value = 0x10000 + ((value & 0x3FF) << 10) + (value2 & 0x3FF)
+ } else {
+ width = 2
+ }
+
+ default:
+ panic("impossible")
+ }
+
+ // Check if the character is in the allowed range:
+ // #x9 | #xA | #xD | [#x20-#x7E] (8 bit)
+ // | #x85 | [#xA0-#xD7FF] | [#xE000-#xFFFD] (16 bit)
+ // | [#x10000-#x10FFFF] (32 bit)
+ switch {
+ case value == 0x09:
+ case value == 0x0A:
+ case value == 0x0D:
+ case value >= 0x20 && value <= 0x7E:
+ case value == 0x85:
+ case value >= 0xA0 && value <= 0xD7FF:
+ case value >= 0xE000 && value <= 0xFFFD:
+ case value >= 0x10000 && value <= 0x10FFFF:
+ default:
+ return yaml_parser_set_reader_error(parser,
+ "control characters are not allowed",
+ parser.offset, int(value))
+ }
+
+ // Move the raw pointers.
+ parser.raw_buffer_pos += width
+ parser.offset += width
+
+ // Finally put the character into the buffer.
+ if value <= 0x7F {
+ // 0000 0000-0000 007F . 0xxxxxxx
+ parser.buffer[buffer_len+0] = byte(value)
+ buffer_len += 1
+ } else if value <= 0x7FF {
+ // 0000 0080-0000 07FF . 110xxxxx 10xxxxxx
+ parser.buffer[buffer_len+0] = byte(0xC0 + (value >> 6))
+ parser.buffer[buffer_len+1] = byte(0x80 + (value & 0x3F))
+ buffer_len += 2
+ } else if value <= 0xFFFF {
+ // 0000 0800-0000 FFFF . 1110xxxx 10xxxxxx 10xxxxxx
+ parser.buffer[buffer_len+0] = byte(0xE0 + (value >> 12))
+ parser.buffer[buffer_len+1] = byte(0x80 + ((value >> 6) & 0x3F))
+ parser.buffer[buffer_len+2] = byte(0x80 + (value & 0x3F))
+ buffer_len += 3
+ } else {
+ // 0001 0000-0010 FFFF . 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
+ parser.buffer[buffer_len+0] = byte(0xF0 + (value >> 18))
+ parser.buffer[buffer_len+1] = byte(0x80 + ((value >> 12) & 0x3F))
+ parser.buffer[buffer_len+2] = byte(0x80 + ((value >> 6) & 0x3F))
+ parser.buffer[buffer_len+3] = byte(0x80 + (value & 0x3F))
+ buffer_len += 4
+ }
+
+ parser.unread++
+ }
+
+ // On EOF, put NUL into the buffer and return.
+ if parser.eof {
+ parser.buffer[buffer_len] = 0
+ buffer_len++
+ parser.unread++
+ break
+ }
+ }
+ // [Go] Read the documentation of this function above. To return true,
+ // we need to have the given length in the buffer. Not doing that means
+ // every single check that calls this function to make sure the buffer
+ // has a given length is Go) panicking; or C) accessing invalid memory.
+ // This happens here due to the EOF above breaking early.
+ for buffer_len < length {
+ parser.buffer[buffer_len] = 0
+ buffer_len++
+ }
+ parser.buffer = parser.buffer[:buffer_len]
+ return true
+}
diff --git a/vendor/gopkg.in/yaml.v2/resolve.go b/vendor/gopkg.in/yaml.v2/resolve.go
new file mode 100644
index 0000000..6c151db
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/resolve.go
@@ -0,0 +1,258 @@
+package yaml
+
+import (
+ "encoding/base64"
+ "math"
+ "regexp"
+ "strconv"
+ "strings"
+ "time"
+)
+
+type resolveMapItem struct {
+ value interface{}
+ tag string
+}
+
+var resolveTable = make([]byte, 256)
+var resolveMap = make(map[string]resolveMapItem)
+
+func init() {
+ t := resolveTable
+ t[int('+')] = 'S' // Sign
+ t[int('-')] = 'S'
+ for _, c := range "0123456789" {
+ t[int(c)] = 'D' // Digit
+ }
+ for _, c := range "yYnNtTfFoO~" {
+ t[int(c)] = 'M' // In map
+ }
+ t[int('.')] = '.' // Float (potentially in map)
+
+ var resolveMapList = []struct {
+ v interface{}
+ tag string
+ l []string
+ }{
+ {true, yaml_BOOL_TAG, []string{"y", "Y", "yes", "Yes", "YES"}},
+ {true, yaml_BOOL_TAG, []string{"true", "True", "TRUE"}},
+ {true, yaml_BOOL_TAG, []string{"on", "On", "ON"}},
+ {false, yaml_BOOL_TAG, []string{"n", "N", "no", "No", "NO"}},
+ {false, yaml_BOOL_TAG, []string{"false", "False", "FALSE"}},
+ {false, yaml_BOOL_TAG, []string{"off", "Off", "OFF"}},
+ {nil, yaml_NULL_TAG, []string{"", "~", "null", "Null", "NULL"}},
+ {math.NaN(), yaml_FLOAT_TAG, []string{".nan", ".NaN", ".NAN"}},
+ {math.Inf(+1), yaml_FLOAT_TAG, []string{".inf", ".Inf", ".INF"}},
+ {math.Inf(+1), yaml_FLOAT_TAG, []string{"+.inf", "+.Inf", "+.INF"}},
+ {math.Inf(-1), yaml_FLOAT_TAG, []string{"-.inf", "-.Inf", "-.INF"}},
+ {"<<", yaml_MERGE_TAG, []string{"<<"}},
+ }
+
+ m := resolveMap
+ for _, item := range resolveMapList {
+ for _, s := range item.l {
+ m[s] = resolveMapItem{item.v, item.tag}
+ }
+ }
+}
+
+const longTagPrefix = "tag:yaml.org,2002:"
+
+func shortTag(tag string) string {
+ // TODO This can easily be made faster and produce less garbage.
+ if strings.HasPrefix(tag, longTagPrefix) {
+ return "!!" + tag[len(longTagPrefix):]
+ }
+ return tag
+}
+
+func longTag(tag string) string {
+ if strings.HasPrefix(tag, "!!") {
+ return longTagPrefix + tag[2:]
+ }
+ return tag
+}
+
+func resolvableTag(tag string) bool {
+ switch tag {
+ case "", yaml_STR_TAG, yaml_BOOL_TAG, yaml_INT_TAG, yaml_FLOAT_TAG, yaml_NULL_TAG, yaml_TIMESTAMP_TAG:
+ return true
+ }
+ return false
+}
+
+var yamlStyleFloat = regexp.MustCompile(`^[-+]?[0-9]*\.?[0-9]+([eE][-+][0-9]+)?$`)
+
+func resolve(tag string, in string) (rtag string, out interface{}) {
+ if !resolvableTag(tag) {
+ return tag, in
+ }
+
+ defer func() {
+ switch tag {
+ case "", rtag, yaml_STR_TAG, yaml_BINARY_TAG:
+ return
+ case yaml_FLOAT_TAG:
+ if rtag == yaml_INT_TAG {
+ switch v := out.(type) {
+ case int64:
+ rtag = yaml_FLOAT_TAG
+ out = float64(v)
+ return
+ case int:
+ rtag = yaml_FLOAT_TAG
+ out = float64(v)
+ return
+ }
+ }
+ }
+ failf("cannot decode %s `%s` as a %s", shortTag(rtag), in, shortTag(tag))
+ }()
+
+ // Any data is accepted as a !!str or !!binary.
+ // Otherwise, the prefix is enough of a hint about what it might be.
+ hint := byte('N')
+ if in != "" {
+ hint = resolveTable[in[0]]
+ }
+ if hint != 0 && tag != yaml_STR_TAG && tag != yaml_BINARY_TAG {
+ // Handle things we can lookup in a map.
+ if item, ok := resolveMap[in]; ok {
+ return item.tag, item.value
+ }
+
+ // Base 60 floats are a bad idea, were dropped in YAML 1.2, and
+ // are purposefully unsupported here. They're still quoted on
+ // the way out for compatibility with other parser, though.
+
+ switch hint {
+ case 'M':
+ // We've already checked the map above.
+
+ case '.':
+ // Not in the map, so maybe a normal float.
+ floatv, err := strconv.ParseFloat(in, 64)
+ if err == nil {
+ return yaml_FLOAT_TAG, floatv
+ }
+
+ case 'D', 'S':
+ // Int, float, or timestamp.
+ // Only try values as a timestamp if the value is unquoted or there's an explicit
+ // !!timestamp tag.
+ if tag == "" || tag == yaml_TIMESTAMP_TAG {
+ t, ok := parseTimestamp(in)
+ if ok {
+ return yaml_TIMESTAMP_TAG, t
+ }
+ }
+
+ plain := strings.Replace(in, "_", "", -1)
+ intv, err := strconv.ParseInt(plain, 0, 64)
+ if err == nil {
+ if intv == int64(int(intv)) {
+ return yaml_INT_TAG, int(intv)
+ } else {
+ return yaml_INT_TAG, intv
+ }
+ }
+ uintv, err := strconv.ParseUint(plain, 0, 64)
+ if err == nil {
+ return yaml_INT_TAG, uintv
+ }
+ if yamlStyleFloat.MatchString(plain) {
+ floatv, err := strconv.ParseFloat(plain, 64)
+ if err == nil {
+ return yaml_FLOAT_TAG, floatv
+ }
+ }
+ if strings.HasPrefix(plain, "0b") {
+ intv, err := strconv.ParseInt(plain[2:], 2, 64)
+ if err == nil {
+ if intv == int64(int(intv)) {
+ return yaml_INT_TAG, int(intv)
+ } else {
+ return yaml_INT_TAG, intv
+ }
+ }
+ uintv, err := strconv.ParseUint(plain[2:], 2, 64)
+ if err == nil {
+ return yaml_INT_TAG, uintv
+ }
+ } else if strings.HasPrefix(plain, "-0b") {
+ intv, err := strconv.ParseInt("-" + plain[3:], 2, 64)
+ if err == nil {
+ if true || intv == int64(int(intv)) {
+ return yaml_INT_TAG, int(intv)
+ } else {
+ return yaml_INT_TAG, intv
+ }
+ }
+ }
+ default:
+ panic("resolveTable item not yet handled: " + string(rune(hint)) + " (with " + in + ")")
+ }
+ }
+ return yaml_STR_TAG, in
+}
+
+// encodeBase64 encodes s as base64 that is broken up into multiple lines
+// as appropriate for the resulting length.
+func encodeBase64(s string) string {
+ const lineLen = 70
+ encLen := base64.StdEncoding.EncodedLen(len(s))
+ lines := encLen/lineLen + 1
+ buf := make([]byte, encLen*2+lines)
+ in := buf[0:encLen]
+ out := buf[encLen:]
+ base64.StdEncoding.Encode(in, []byte(s))
+ k := 0
+ for i := 0; i < len(in); i += lineLen {
+ j := i + lineLen
+ if j > len(in) {
+ j = len(in)
+ }
+ k += copy(out[k:], in[i:j])
+ if lines > 1 {
+ out[k] = '\n'
+ k++
+ }
+ }
+ return string(out[:k])
+}
+
+// This is a subset of the formats allowed by the regular expression
+// defined at http://yaml.org/type/timestamp.html.
+var allowedTimestampFormats = []string{
+ "2006-1-2T15:4:5.999999999Z07:00", // RCF3339Nano with short date fields.
+ "2006-1-2t15:4:5.999999999Z07:00", // RFC3339Nano with short date fields and lower-case "t".
+ "2006-1-2 15:4:5.999999999", // space separated with no time zone
+ "2006-1-2", // date only
+ // Notable exception: time.Parse cannot handle: "2001-12-14 21:59:43.10 -5"
+ // from the set of examples.
+}
+
+// parseTimestamp parses s as a timestamp string and
+// returns the timestamp and reports whether it succeeded.
+// Timestamp formats are defined at http://yaml.org/type/timestamp.html
+func parseTimestamp(s string) (time.Time, bool) {
+ // TODO write code to check all the formats supported by
+ // http://yaml.org/type/timestamp.html instead of using time.Parse.
+
+ // Quick check: all date formats start with YYYY-.
+ i := 0
+ for ; i < len(s); i++ {
+ if c := s[i]; c < '0' || c > '9' {
+ break
+ }
+ }
+ if i != 4 || i == len(s) || s[i] != '-' {
+ return time.Time{}, false
+ }
+ for _, format := range allowedTimestampFormats {
+ if t, err := time.Parse(format, s); err == nil {
+ return t, true
+ }
+ }
+ return time.Time{}, false
+}
diff --git a/vendor/gopkg.in/yaml.v2/scannerc.go b/vendor/gopkg.in/yaml.v2/scannerc.go
new file mode 100644
index 0000000..077fd1d
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/scannerc.go
@@ -0,0 +1,2696 @@
+package yaml
+
+import (
+ "bytes"
+ "fmt"
+)
+
+// Introduction
+// ************
+//
+// The following notes assume that you are familiar with the YAML specification
+// (http://yaml.org/spec/1.2/spec.html). We mostly follow it, although in
+// some cases we are less restrictive that it requires.
+//
+// The process of transforming a YAML stream into a sequence of events is
+// divided on two steps: Scanning and Parsing.
+//
+// The Scanner transforms the input stream into a sequence of tokens, while the
+// parser transform the sequence of tokens produced by the Scanner into a
+// sequence of parsing events.
+//
+// The Scanner is rather clever and complicated. The Parser, on the contrary,
+// is a straightforward implementation of a recursive-descendant parser (or,
+// LL(1) parser, as it is usually called).
+//
+// Actually there are two issues of Scanning that might be called "clever", the
+// rest is quite straightforward. The issues are "block collection start" and
+// "simple keys". Both issues are explained below in details.
+//
+// Here the Scanning step is explained and implemented. We start with the list
+// of all the tokens produced by the Scanner together with short descriptions.
+//
+// Now, tokens:
+//
+// STREAM-START(encoding) # The stream start.
+// STREAM-END # The stream end.
+// VERSION-DIRECTIVE(major,minor) # The '%YAML' directive.
+// TAG-DIRECTIVE(handle,prefix) # The '%TAG' directive.
+// DOCUMENT-START # '---'
+// DOCUMENT-END # '...'
+// BLOCK-SEQUENCE-START # Indentation increase denoting a block
+// BLOCK-MAPPING-START # sequence or a block mapping.
+// BLOCK-END # Indentation decrease.
+// FLOW-SEQUENCE-START # '['
+// FLOW-SEQUENCE-END # ']'
+// BLOCK-SEQUENCE-START # '{'
+// BLOCK-SEQUENCE-END # '}'
+// BLOCK-ENTRY # '-'
+// FLOW-ENTRY # ','
+// KEY # '?' or nothing (simple keys).
+// VALUE # ':'
+// ALIAS(anchor) # '*anchor'
+// ANCHOR(anchor) # '&anchor'
+// TAG(handle,suffix) # '!handle!suffix'
+// SCALAR(value,style) # A scalar.
+//
+// The following two tokens are "virtual" tokens denoting the beginning and the
+// end of the stream:
+//
+// STREAM-START(encoding)
+// STREAM-END
+//
+// We pass the information about the input stream encoding with the
+// STREAM-START token.
+//
+// The next two tokens are responsible for tags:
+//
+// VERSION-DIRECTIVE(major,minor)
+// TAG-DIRECTIVE(handle,prefix)
+//
+// Example:
+//
+// %YAML 1.1
+// %TAG ! !foo
+// %TAG !yaml! tag:yaml.org,2002:
+// ---
+//
+// The correspoding sequence of tokens:
+//
+// STREAM-START(utf-8)
+// VERSION-DIRECTIVE(1,1)
+// TAG-DIRECTIVE("!","!foo")
+// TAG-DIRECTIVE("!yaml","tag:yaml.org,2002:")
+// DOCUMENT-START
+// STREAM-END
+//
+// Note that the VERSION-DIRECTIVE and TAG-DIRECTIVE tokens occupy a whole
+// line.
+//
+// The document start and end indicators are represented by:
+//
+// DOCUMENT-START
+// DOCUMENT-END
+//
+// Note that if a YAML stream contains an implicit document (without '---'
+// and '...' indicators), no DOCUMENT-START and DOCUMENT-END tokens will be
+// produced.
+//
+// In the following examples, we present whole documents together with the
+// produced tokens.
+//
+// 1. An implicit document:
+//
+// 'a scalar'
+//
+// Tokens:
+//
+// STREAM-START(utf-8)
+// SCALAR("a scalar",single-quoted)
+// STREAM-END
+//
+// 2. An explicit document:
+//
+// ---
+// 'a scalar'
+// ...
+//
+// Tokens:
+//
+// STREAM-START(utf-8)
+// DOCUMENT-START
+// SCALAR("a scalar",single-quoted)
+// DOCUMENT-END
+// STREAM-END
+//
+// 3. Several documents in a stream:
+//
+// 'a scalar'
+// ---
+// 'another scalar'
+// ---
+// 'yet another scalar'
+//
+// Tokens:
+//
+// STREAM-START(utf-8)
+// SCALAR("a scalar",single-quoted)
+// DOCUMENT-START
+// SCALAR("another scalar",single-quoted)
+// DOCUMENT-START
+// SCALAR("yet another scalar",single-quoted)
+// STREAM-END
+//
+// We have already introduced the SCALAR token above. The following tokens are
+// used to describe aliases, anchors, tag, and scalars:
+//
+// ALIAS(anchor)
+// ANCHOR(anchor)
+// TAG(handle,suffix)
+// SCALAR(value,style)
+//
+// The following series of examples illustrate the usage of these tokens:
+//
+// 1. A recursive sequence:
+//
+// &A [ *A ]
+//
+// Tokens:
+//
+// STREAM-START(utf-8)
+// ANCHOR("A")
+// FLOW-SEQUENCE-START
+// ALIAS("A")
+// FLOW-SEQUENCE-END
+// STREAM-END
+//
+// 2. A tagged scalar:
+//
+// !!float "3.14" # A good approximation.
+//
+// Tokens:
+//
+// STREAM-START(utf-8)
+// TAG("!!","float")
+// SCALAR("3.14",double-quoted)
+// STREAM-END
+//
+// 3. Various scalar styles:
+//
+// --- # Implicit empty plain scalars do not produce tokens.
+// --- a plain scalar
+// --- 'a single-quoted scalar'
+// --- "a double-quoted scalar"
+// --- |-
+// a literal scalar
+// --- >-
+// a folded
+// scalar
+//
+// Tokens:
+//
+// STREAM-START(utf-8)
+// DOCUMENT-START
+// DOCUMENT-START
+// SCALAR("a plain scalar",plain)
+// DOCUMENT-START
+// SCALAR("a single-quoted scalar",single-quoted)
+// DOCUMENT-START
+// SCALAR("a double-quoted scalar",double-quoted)
+// DOCUMENT-START
+// SCALAR("a literal scalar",literal)
+// DOCUMENT-START
+// SCALAR("a folded scalar",folded)
+// STREAM-END
+//
+// Now it's time to review collection-related tokens. We will start with
+// flow collections:
+//
+// FLOW-SEQUENCE-START
+// FLOW-SEQUENCE-END
+// FLOW-MAPPING-START
+// FLOW-MAPPING-END
+// FLOW-ENTRY
+// KEY
+// VALUE
+//
+// The tokens FLOW-SEQUENCE-START, FLOW-SEQUENCE-END, FLOW-MAPPING-START, and
+// FLOW-MAPPING-END represent the indicators '[', ']', '{', and '}'
+// correspondingly. FLOW-ENTRY represent the ',' indicator. Finally the
+// indicators '?' and ':', which are used for denoting mapping keys and values,
+// are represented by the KEY and VALUE tokens.
+//
+// The following examples show flow collections:
+//
+// 1. A flow sequence:
+//
+// [item 1, item 2, item 3]
+//
+// Tokens:
+//
+// STREAM-START(utf-8)
+// FLOW-SEQUENCE-START
+// SCALAR("item 1",plain)
+// FLOW-ENTRY
+// SCALAR("item 2",plain)
+// FLOW-ENTRY
+// SCALAR("item 3",plain)
+// FLOW-SEQUENCE-END
+// STREAM-END
+//
+// 2. A flow mapping:
+//
+// {
+// a simple key: a value, # Note that the KEY token is produced.
+// ? a complex key: another value,
+// }
+//
+// Tokens:
+//
+// STREAM-START(utf-8)
+// FLOW-MAPPING-START
+// KEY
+// SCALAR("a simple key",plain)
+// VALUE
+// SCALAR("a value",plain)
+// FLOW-ENTRY
+// KEY
+// SCALAR("a complex key",plain)
+// VALUE
+// SCALAR("another value",plain)
+// FLOW-ENTRY
+// FLOW-MAPPING-END
+// STREAM-END
+//
+// A simple key is a key which is not denoted by the '?' indicator. Note that
+// the Scanner still produce the KEY token whenever it encounters a simple key.
+//
+// For scanning block collections, the following tokens are used (note that we
+// repeat KEY and VALUE here):
+//
+// BLOCK-SEQUENCE-START
+// BLOCK-MAPPING-START
+// BLOCK-END
+// BLOCK-ENTRY
+// KEY
+// VALUE
+//
+// The tokens BLOCK-SEQUENCE-START and BLOCK-MAPPING-START denote indentation
+// increase that precedes a block collection (cf. the INDENT token in Python).
+// The token BLOCK-END denote indentation decrease that ends a block collection
+// (cf. the DEDENT token in Python). However YAML has some syntax pecularities
+// that makes detections of these tokens more complex.
+//
+// The tokens BLOCK-ENTRY, KEY, and VALUE are used to represent the indicators
+// '-', '?', and ':' correspondingly.
+//
+// The following examples show how the tokens BLOCK-SEQUENCE-START,
+// BLOCK-MAPPING-START, and BLOCK-END are emitted by the Scanner:
+//
+// 1. Block sequences:
+//
+// - item 1
+// - item 2
+// -
+// - item 3.1
+// - item 3.2
+// -
+// key 1: value 1
+// key 2: value 2
+//
+// Tokens:
+//
+// STREAM-START(utf-8)
+// BLOCK-SEQUENCE-START
+// BLOCK-ENTRY
+// SCALAR("item 1",plain)
+// BLOCK-ENTRY
+// SCALAR("item 2",plain)
+// BLOCK-ENTRY
+// BLOCK-SEQUENCE-START
+// BLOCK-ENTRY
+// SCALAR("item 3.1",plain)
+// BLOCK-ENTRY
+// SCALAR("item 3.2",plain)
+// BLOCK-END
+// BLOCK-ENTRY
+// BLOCK-MAPPING-START
+// KEY
+// SCALAR("key 1",plain)
+// VALUE
+// SCALAR("value 1",plain)
+// KEY
+// SCALAR("key 2",plain)
+// VALUE
+// SCALAR("value 2",plain)
+// BLOCK-END
+// BLOCK-END
+// STREAM-END
+//
+// 2. Block mappings:
+//
+// a simple key: a value # The KEY token is produced here.
+// ? a complex key
+// : another value
+// a mapping:
+// key 1: value 1
+// key 2: value 2
+// a sequence:
+// - item 1
+// - item 2
+//
+// Tokens:
+//
+// STREAM-START(utf-8)
+// BLOCK-MAPPING-START
+// KEY
+// SCALAR("a simple key",plain)
+// VALUE
+// SCALAR("a value",plain)
+// KEY
+// SCALAR("a complex key",plain)
+// VALUE
+// SCALAR("another value",plain)
+// KEY
+// SCALAR("a mapping",plain)
+// BLOCK-MAPPING-START
+// KEY
+// SCALAR("key 1",plain)
+// VALUE
+// SCALAR("value 1",plain)
+// KEY
+// SCALAR("key 2",plain)
+// VALUE
+// SCALAR("value 2",plain)
+// BLOCK-END
+// KEY
+// SCALAR("a sequence",plain)
+// VALUE
+// BLOCK-SEQUENCE-START
+// BLOCK-ENTRY
+// SCALAR("item 1",plain)
+// BLOCK-ENTRY
+// SCALAR("item 2",plain)
+// BLOCK-END
+// BLOCK-END
+// STREAM-END
+//
+// YAML does not always require to start a new block collection from a new
+// line. If the current line contains only '-', '?', and ':' indicators, a new
+// block collection may start at the current line. The following examples
+// illustrate this case:
+//
+// 1. Collections in a sequence:
+//
+// - - item 1
+// - item 2
+// - key 1: value 1
+// key 2: value 2
+// - ? complex key
+// : complex value
+//
+// Tokens:
+//
+// STREAM-START(utf-8)
+// BLOCK-SEQUENCE-START
+// BLOCK-ENTRY
+// BLOCK-SEQUENCE-START
+// BLOCK-ENTRY
+// SCALAR("item 1",plain)
+// BLOCK-ENTRY
+// SCALAR("item 2",plain)
+// BLOCK-END
+// BLOCK-ENTRY
+// BLOCK-MAPPING-START
+// KEY
+// SCALAR("key 1",plain)
+// VALUE
+// SCALAR("value 1",plain)
+// KEY
+// SCALAR("key 2",plain)
+// VALUE
+// SCALAR("value 2",plain)
+// BLOCK-END
+// BLOCK-ENTRY
+// BLOCK-MAPPING-START
+// KEY
+// SCALAR("complex key")
+// VALUE
+// SCALAR("complex value")
+// BLOCK-END
+// BLOCK-END
+// STREAM-END
+//
+// 2. Collections in a mapping:
+//
+// ? a sequence
+// : - item 1
+// - item 2
+// ? a mapping
+// : key 1: value 1
+// key 2: value 2
+//
+// Tokens:
+//
+// STREAM-START(utf-8)
+// BLOCK-MAPPING-START
+// KEY
+// SCALAR("a sequence",plain)
+// VALUE
+// BLOCK-SEQUENCE-START
+// BLOCK-ENTRY
+// SCALAR("item 1",plain)
+// BLOCK-ENTRY
+// SCALAR("item 2",plain)
+// BLOCK-END
+// KEY
+// SCALAR("a mapping",plain)
+// VALUE
+// BLOCK-MAPPING-START
+// KEY
+// SCALAR("key 1",plain)
+// VALUE
+// SCALAR("value 1",plain)
+// KEY
+// SCALAR("key 2",plain)
+// VALUE
+// SCALAR("value 2",plain)
+// BLOCK-END
+// BLOCK-END
+// STREAM-END
+//
+// YAML also permits non-indented sequences if they are included into a block
+// mapping. In this case, the token BLOCK-SEQUENCE-START is not produced:
+//
+// key:
+// - item 1 # BLOCK-SEQUENCE-START is NOT produced here.
+// - item 2
+//
+// Tokens:
+//
+// STREAM-START(utf-8)
+// BLOCK-MAPPING-START
+// KEY
+// SCALAR("key",plain)
+// VALUE
+// BLOCK-ENTRY
+// SCALAR("item 1",plain)
+// BLOCK-ENTRY
+// SCALAR("item 2",plain)
+// BLOCK-END
+//
+
+// Ensure that the buffer contains the required number of characters.
+// Return true on success, false on failure (reader error or memory error).
+func cache(parser *yaml_parser_t, length int) bool {
+ // [Go] This was inlined: !cache(A, B) -> unread < B && !update(A, B)
+ return parser.unread >= length || yaml_parser_update_buffer(parser, length)
+}
+
+// Advance the buffer pointer.
+func skip(parser *yaml_parser_t) {
+ parser.mark.index++
+ parser.mark.column++
+ parser.unread--
+ parser.buffer_pos += width(parser.buffer[parser.buffer_pos])
+}
+
+func skip_line(parser *yaml_parser_t) {
+ if is_crlf(parser.buffer, parser.buffer_pos) {
+ parser.mark.index += 2
+ parser.mark.column = 0
+ parser.mark.line++
+ parser.unread -= 2
+ parser.buffer_pos += 2
+ } else if is_break(parser.buffer, parser.buffer_pos) {
+ parser.mark.index++
+ parser.mark.column = 0
+ parser.mark.line++
+ parser.unread--
+ parser.buffer_pos += width(parser.buffer[parser.buffer_pos])
+ }
+}
+
+// Copy a character to a string buffer and advance pointers.
+func read(parser *yaml_parser_t, s []byte) []byte {
+ w := width(parser.buffer[parser.buffer_pos])
+ if w == 0 {
+ panic("invalid character sequence")
+ }
+ if len(s) == 0 {
+ s = make([]byte, 0, 32)
+ }
+ if w == 1 && len(s)+w <= cap(s) {
+ s = s[:len(s)+1]
+ s[len(s)-1] = parser.buffer[parser.buffer_pos]
+ parser.buffer_pos++
+ } else {
+ s = append(s, parser.buffer[parser.buffer_pos:parser.buffer_pos+w]...)
+ parser.buffer_pos += w
+ }
+ parser.mark.index++
+ parser.mark.column++
+ parser.unread--
+ return s
+}
+
+// Copy a line break character to a string buffer and advance pointers.
+func read_line(parser *yaml_parser_t, s []byte) []byte {
+ buf := parser.buffer
+ pos := parser.buffer_pos
+ switch {
+ case buf[pos] == '\r' && buf[pos+1] == '\n':
+ // CR LF . LF
+ s = append(s, '\n')
+ parser.buffer_pos += 2
+ parser.mark.index++
+ parser.unread--
+ case buf[pos] == '\r' || buf[pos] == '\n':
+ // CR|LF . LF
+ s = append(s, '\n')
+ parser.buffer_pos += 1
+ case buf[pos] == '\xC2' && buf[pos+1] == '\x85':
+ // NEL . LF
+ s = append(s, '\n')
+ parser.buffer_pos += 2
+ case buf[pos] == '\xE2' && buf[pos+1] == '\x80' && (buf[pos+2] == '\xA8' || buf[pos+2] == '\xA9'):
+ // LS|PS . LS|PS
+ s = append(s, buf[parser.buffer_pos:pos+3]...)
+ parser.buffer_pos += 3
+ default:
+ return s
+ }
+ parser.mark.index++
+ parser.mark.column = 0
+ parser.mark.line++
+ parser.unread--
+ return s
+}
+
+// Get the next token.
+func yaml_parser_scan(parser *yaml_parser_t, token *yaml_token_t) bool {
+ // Erase the token object.
+ *token = yaml_token_t{} // [Go] Is this necessary?
+
+ // No tokens after STREAM-END or error.
+ if parser.stream_end_produced || parser.error != yaml_NO_ERROR {
+ return true
+ }
+
+ // Ensure that the tokens queue contains enough tokens.
+ if !parser.token_available {
+ if !yaml_parser_fetch_more_tokens(parser) {
+ return false
+ }
+ }
+
+ // Fetch the next token from the queue.
+ *token = parser.tokens[parser.tokens_head]
+ parser.tokens_head++
+ parser.tokens_parsed++
+ parser.token_available = false
+
+ if token.typ == yaml_STREAM_END_TOKEN {
+ parser.stream_end_produced = true
+ }
+ return true
+}
+
+// Set the scanner error and return false.
+func yaml_parser_set_scanner_error(parser *yaml_parser_t, context string, context_mark yaml_mark_t, problem string) bool {
+ parser.error = yaml_SCANNER_ERROR
+ parser.context = context
+ parser.context_mark = context_mark
+ parser.problem = problem
+ parser.problem_mark = parser.mark
+ return false
+}
+
+func yaml_parser_set_scanner_tag_error(parser *yaml_parser_t, directive bool, context_mark yaml_mark_t, problem string) bool {
+ context := "while parsing a tag"
+ if directive {
+ context = "while parsing a %TAG directive"
+ }
+ return yaml_parser_set_scanner_error(parser, context, context_mark, problem)
+}
+
+func trace(args ...interface{}) func() {
+ pargs := append([]interface{}{"+++"}, args...)
+ fmt.Println(pargs...)
+ pargs = append([]interface{}{"---"}, args...)
+ return func() { fmt.Println(pargs...) }
+}
+
+// Ensure that the tokens queue contains at least one token which can be
+// returned to the Parser.
+func yaml_parser_fetch_more_tokens(parser *yaml_parser_t) bool {
+ // While we need more tokens to fetch, do it.
+ for {
+ // Check if we really need to fetch more tokens.
+ need_more_tokens := false
+
+ if parser.tokens_head == len(parser.tokens) {
+ // Queue is empty.
+ need_more_tokens = true
+ } else {
+ // Check if any potential simple key may occupy the head position.
+ if !yaml_parser_stale_simple_keys(parser) {
+ return false
+ }
+
+ for i := range parser.simple_keys {
+ simple_key := &parser.simple_keys[i]
+ if simple_key.possible && simple_key.token_number == parser.tokens_parsed {
+ need_more_tokens = true
+ break
+ }
+ }
+ }
+
+ // We are finished.
+ if !need_more_tokens {
+ break
+ }
+ // Fetch the next token.
+ if !yaml_parser_fetch_next_token(parser) {
+ return false
+ }
+ }
+
+ parser.token_available = true
+ return true
+}
+
+// The dispatcher for token fetchers.
+func yaml_parser_fetch_next_token(parser *yaml_parser_t) bool {
+ // Ensure that the buffer is initialized.
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+
+ // Check if we just started scanning. Fetch STREAM-START then.
+ if !parser.stream_start_produced {
+ return yaml_parser_fetch_stream_start(parser)
+ }
+
+ // Eat whitespaces and comments until we reach the next token.
+ if !yaml_parser_scan_to_next_token(parser) {
+ return false
+ }
+
+ // Remove obsolete potential simple keys.
+ if !yaml_parser_stale_simple_keys(parser) {
+ return false
+ }
+
+ // Check the indentation level against the current column.
+ if !yaml_parser_unroll_indent(parser, parser.mark.column) {
+ return false
+ }
+
+ // Ensure that the buffer contains at least 4 characters. 4 is the length
+ // of the longest indicators ('--- ' and '... ').
+ if parser.unread < 4 && !yaml_parser_update_buffer(parser, 4) {
+ return false
+ }
+
+ // Is it the end of the stream?
+ if is_z(parser.buffer, parser.buffer_pos) {
+ return yaml_parser_fetch_stream_end(parser)
+ }
+
+ // Is it a directive?
+ if parser.mark.column == 0 && parser.buffer[parser.buffer_pos] == '%' {
+ return yaml_parser_fetch_directive(parser)
+ }
+
+ buf := parser.buffer
+ pos := parser.buffer_pos
+
+ // Is it the document start indicator?
+ if parser.mark.column == 0 && buf[pos] == '-' && buf[pos+1] == '-' && buf[pos+2] == '-' && is_blankz(buf, pos+3) {
+ return yaml_parser_fetch_document_indicator(parser, yaml_DOCUMENT_START_TOKEN)
+ }
+
+ // Is it the document end indicator?
+ if parser.mark.column == 0 && buf[pos] == '.' && buf[pos+1] == '.' && buf[pos+2] == '.' && is_blankz(buf, pos+3) {
+ return yaml_parser_fetch_document_indicator(parser, yaml_DOCUMENT_END_TOKEN)
+ }
+
+ // Is it the flow sequence start indicator?
+ if buf[pos] == '[' {
+ return yaml_parser_fetch_flow_collection_start(parser, yaml_FLOW_SEQUENCE_START_TOKEN)
+ }
+
+ // Is it the flow mapping start indicator?
+ if parser.buffer[parser.buffer_pos] == '{' {
+ return yaml_parser_fetch_flow_collection_start(parser, yaml_FLOW_MAPPING_START_TOKEN)
+ }
+
+ // Is it the flow sequence end indicator?
+ if parser.buffer[parser.buffer_pos] == ']' {
+ return yaml_parser_fetch_flow_collection_end(parser,
+ yaml_FLOW_SEQUENCE_END_TOKEN)
+ }
+
+ // Is it the flow mapping end indicator?
+ if parser.buffer[parser.buffer_pos] == '}' {
+ return yaml_parser_fetch_flow_collection_end(parser,
+ yaml_FLOW_MAPPING_END_TOKEN)
+ }
+
+ // Is it the flow entry indicator?
+ if parser.buffer[parser.buffer_pos] == ',' {
+ return yaml_parser_fetch_flow_entry(parser)
+ }
+
+ // Is it the block entry indicator?
+ if parser.buffer[parser.buffer_pos] == '-' && is_blankz(parser.buffer, parser.buffer_pos+1) {
+ return yaml_parser_fetch_block_entry(parser)
+ }
+
+ // Is it the key indicator?
+ if parser.buffer[parser.buffer_pos] == '?' && (parser.flow_level > 0 || is_blankz(parser.buffer, parser.buffer_pos+1)) {
+ return yaml_parser_fetch_key(parser)
+ }
+
+ // Is it the value indicator?
+ if parser.buffer[parser.buffer_pos] == ':' && (parser.flow_level > 0 || is_blankz(parser.buffer, parser.buffer_pos+1)) {
+ return yaml_parser_fetch_value(parser)
+ }
+
+ // Is it an alias?
+ if parser.buffer[parser.buffer_pos] == '*' {
+ return yaml_parser_fetch_anchor(parser, yaml_ALIAS_TOKEN)
+ }
+
+ // Is it an anchor?
+ if parser.buffer[parser.buffer_pos] == '&' {
+ return yaml_parser_fetch_anchor(parser, yaml_ANCHOR_TOKEN)
+ }
+
+ // Is it a tag?
+ if parser.buffer[parser.buffer_pos] == '!' {
+ return yaml_parser_fetch_tag(parser)
+ }
+
+ // Is it a literal scalar?
+ if parser.buffer[parser.buffer_pos] == '|' && parser.flow_level == 0 {
+ return yaml_parser_fetch_block_scalar(parser, true)
+ }
+
+ // Is it a folded scalar?
+ if parser.buffer[parser.buffer_pos] == '>' && parser.flow_level == 0 {
+ return yaml_parser_fetch_block_scalar(parser, false)
+ }
+
+ // Is it a single-quoted scalar?
+ if parser.buffer[parser.buffer_pos] == '\'' {
+ return yaml_parser_fetch_flow_scalar(parser, true)
+ }
+
+ // Is it a double-quoted scalar?
+ if parser.buffer[parser.buffer_pos] == '"' {
+ return yaml_parser_fetch_flow_scalar(parser, false)
+ }
+
+ // Is it a plain scalar?
+ //
+ // A plain scalar may start with any non-blank characters except
+ //
+ // '-', '?', ':', ',', '[', ']', '{', '}',
+ // '#', '&', '*', '!', '|', '>', '\'', '\"',
+ // '%', '@', '`'.
+ //
+ // In the block context (and, for the '-' indicator, in the flow context
+ // too), it may also start with the characters
+ //
+ // '-', '?', ':'
+ //
+ // if it is followed by a non-space character.
+ //
+ // The last rule is more restrictive than the specification requires.
+ // [Go] Make this logic more reasonable.
+ //switch parser.buffer[parser.buffer_pos] {
+ //case '-', '?', ':', ',', '?', '-', ',', ':', ']', '[', '}', '{', '&', '#', '!', '*', '>', '|', '"', '\'', '@', '%', '-', '`':
+ //}
+ if !(is_blankz(parser.buffer, parser.buffer_pos) || parser.buffer[parser.buffer_pos] == '-' ||
+ parser.buffer[parser.buffer_pos] == '?' || parser.buffer[parser.buffer_pos] == ':' ||
+ parser.buffer[parser.buffer_pos] == ',' || parser.buffer[parser.buffer_pos] == '[' ||
+ parser.buffer[parser.buffer_pos] == ']' || parser.buffer[parser.buffer_pos] == '{' ||
+ parser.buffer[parser.buffer_pos] == '}' || parser.buffer[parser.buffer_pos] == '#' ||
+ parser.buffer[parser.buffer_pos] == '&' || parser.buffer[parser.buffer_pos] == '*' ||
+ parser.buffer[parser.buffer_pos] == '!' || parser.buffer[parser.buffer_pos] == '|' ||
+ parser.buffer[parser.buffer_pos] == '>' || parser.buffer[parser.buffer_pos] == '\'' ||
+ parser.buffer[parser.buffer_pos] == '"' || parser.buffer[parser.buffer_pos] == '%' ||
+ parser.buffer[parser.buffer_pos] == '@' || parser.buffer[parser.buffer_pos] == '`') ||
+ (parser.buffer[parser.buffer_pos] == '-' && !is_blank(parser.buffer, parser.buffer_pos+1)) ||
+ (parser.flow_level == 0 &&
+ (parser.buffer[parser.buffer_pos] == '?' || parser.buffer[parser.buffer_pos] == ':') &&
+ !is_blankz(parser.buffer, parser.buffer_pos+1)) {
+ return yaml_parser_fetch_plain_scalar(parser)
+ }
+
+ // If we don't determine the token type so far, it is an error.
+ return yaml_parser_set_scanner_error(parser,
+ "while scanning for the next token", parser.mark,
+ "found character that cannot start any token")
+}
+
+// Check the list of potential simple keys and remove the positions that
+// cannot contain simple keys anymore.
+func yaml_parser_stale_simple_keys(parser *yaml_parser_t) bool {
+ // Check for a potential simple key for each flow level.
+ for i := range parser.simple_keys {
+ simple_key := &parser.simple_keys[i]
+
+ // The specification requires that a simple key
+ //
+ // - is limited to a single line,
+ // - is shorter than 1024 characters.
+ if simple_key.possible && (simple_key.mark.line < parser.mark.line || simple_key.mark.index+1024 < parser.mark.index) {
+
+ // Check if the potential simple key to be removed is required.
+ if simple_key.required {
+ return yaml_parser_set_scanner_error(parser,
+ "while scanning a simple key", simple_key.mark,
+ "could not find expected ':'")
+ }
+ simple_key.possible = false
+ }
+ }
+ return true
+}
+
+// Check if a simple key may start at the current position and add it if
+// needed.
+func yaml_parser_save_simple_key(parser *yaml_parser_t) bool {
+ // A simple key is required at the current position if the scanner is in
+ // the block context and the current column coincides with the indentation
+ // level.
+
+ required := parser.flow_level == 0 && parser.indent == parser.mark.column
+
+ //
+ // If the current position may start a simple key, save it.
+ //
+ if parser.simple_key_allowed {
+ simple_key := yaml_simple_key_t{
+ possible: true,
+ required: required,
+ token_number: parser.tokens_parsed + (len(parser.tokens) - parser.tokens_head),
+ }
+ simple_key.mark = parser.mark
+
+ if !yaml_parser_remove_simple_key(parser) {
+ return false
+ }
+ parser.simple_keys[len(parser.simple_keys)-1] = simple_key
+ }
+ return true
+}
+
+// Remove a potential simple key at the current flow level.
+func yaml_parser_remove_simple_key(parser *yaml_parser_t) bool {
+ i := len(parser.simple_keys) - 1
+ if parser.simple_keys[i].possible {
+ // If the key is required, it is an error.
+ if parser.simple_keys[i].required {
+ return yaml_parser_set_scanner_error(parser,
+ "while scanning a simple key", parser.simple_keys[i].mark,
+ "could not find expected ':'")
+ }
+ }
+ // Remove the key from the stack.
+ parser.simple_keys[i].possible = false
+ return true
+}
+
+// Increase the flow level and resize the simple key list if needed.
+func yaml_parser_increase_flow_level(parser *yaml_parser_t) bool {
+ // Reset the simple key on the next level.
+ parser.simple_keys = append(parser.simple_keys, yaml_simple_key_t{})
+
+ // Increase the flow level.
+ parser.flow_level++
+ return true
+}
+
+// Decrease the flow level.
+func yaml_parser_decrease_flow_level(parser *yaml_parser_t) bool {
+ if parser.flow_level > 0 {
+ parser.flow_level--
+ parser.simple_keys = parser.simple_keys[:len(parser.simple_keys)-1]
+ }
+ return true
+}
+
+// Push the current indentation level to the stack and set the new level
+// the current column is greater than the indentation level. In this case,
+// append or insert the specified token into the token queue.
+func yaml_parser_roll_indent(parser *yaml_parser_t, column, number int, typ yaml_token_type_t, mark yaml_mark_t) bool {
+ // In the flow context, do nothing.
+ if parser.flow_level > 0 {
+ return true
+ }
+
+ if parser.indent < column {
+ // Push the current indentation level to the stack and set the new
+ // indentation level.
+ parser.indents = append(parser.indents, parser.indent)
+ parser.indent = column
+
+ // Create a token and insert it into the queue.
+ token := yaml_token_t{
+ typ: typ,
+ start_mark: mark,
+ end_mark: mark,
+ }
+ if number > -1 {
+ number -= parser.tokens_parsed
+ }
+ yaml_insert_token(parser, number, &token)
+ }
+ return true
+}
+
+// Pop indentation levels from the indents stack until the current level
+// becomes less or equal to the column. For each indentation level, append
+// the BLOCK-END token.
+func yaml_parser_unroll_indent(parser *yaml_parser_t, column int) bool {
+ // In the flow context, do nothing.
+ if parser.flow_level > 0 {
+ return true
+ }
+
+ // Loop through the indentation levels in the stack.
+ for parser.indent > column {
+ // Create a token and append it to the queue.
+ token := yaml_token_t{
+ typ: yaml_BLOCK_END_TOKEN,
+ start_mark: parser.mark,
+ end_mark: parser.mark,
+ }
+ yaml_insert_token(parser, -1, &token)
+
+ // Pop the indentation level.
+ parser.indent = parser.indents[len(parser.indents)-1]
+ parser.indents = parser.indents[:len(parser.indents)-1]
+ }
+ return true
+}
+
+// Initialize the scanner and produce the STREAM-START token.
+func yaml_parser_fetch_stream_start(parser *yaml_parser_t) bool {
+
+ // Set the initial indentation.
+ parser.indent = -1
+
+ // Initialize the simple key stack.
+ parser.simple_keys = append(parser.simple_keys, yaml_simple_key_t{})
+
+ // A simple key is allowed at the beginning of the stream.
+ parser.simple_key_allowed = true
+
+ // We have started.
+ parser.stream_start_produced = true
+
+ // Create the STREAM-START token and append it to the queue.
+ token := yaml_token_t{
+ typ: yaml_STREAM_START_TOKEN,
+ start_mark: parser.mark,
+ end_mark: parser.mark,
+ encoding: parser.encoding,
+ }
+ yaml_insert_token(parser, -1, &token)
+ return true
+}
+
+// Produce the STREAM-END token and shut down the scanner.
+func yaml_parser_fetch_stream_end(parser *yaml_parser_t) bool {
+
+ // Force new line.
+ if parser.mark.column != 0 {
+ parser.mark.column = 0
+ parser.mark.line++
+ }
+
+ // Reset the indentation level.
+ if !yaml_parser_unroll_indent(parser, -1) {
+ return false
+ }
+
+ // Reset simple keys.
+ if !yaml_parser_remove_simple_key(parser) {
+ return false
+ }
+
+ parser.simple_key_allowed = false
+
+ // Create the STREAM-END token and append it to the queue.
+ token := yaml_token_t{
+ typ: yaml_STREAM_END_TOKEN,
+ start_mark: parser.mark,
+ end_mark: parser.mark,
+ }
+ yaml_insert_token(parser, -1, &token)
+ return true
+}
+
+// Produce a VERSION-DIRECTIVE or TAG-DIRECTIVE token.
+func yaml_parser_fetch_directive(parser *yaml_parser_t) bool {
+ // Reset the indentation level.
+ if !yaml_parser_unroll_indent(parser, -1) {
+ return false
+ }
+
+ // Reset simple keys.
+ if !yaml_parser_remove_simple_key(parser) {
+ return false
+ }
+
+ parser.simple_key_allowed = false
+
+ // Create the YAML-DIRECTIVE or TAG-DIRECTIVE token.
+ token := yaml_token_t{}
+ if !yaml_parser_scan_directive(parser, &token) {
+ return false
+ }
+ // Append the token to the queue.
+ yaml_insert_token(parser, -1, &token)
+ return true
+}
+
+// Produce the DOCUMENT-START or DOCUMENT-END token.
+func yaml_parser_fetch_document_indicator(parser *yaml_parser_t, typ yaml_token_type_t) bool {
+ // Reset the indentation level.
+ if !yaml_parser_unroll_indent(parser, -1) {
+ return false
+ }
+
+ // Reset simple keys.
+ if !yaml_parser_remove_simple_key(parser) {
+ return false
+ }
+
+ parser.simple_key_allowed = false
+
+ // Consume the token.
+ start_mark := parser.mark
+
+ skip(parser)
+ skip(parser)
+ skip(parser)
+
+ end_mark := parser.mark
+
+ // Create the DOCUMENT-START or DOCUMENT-END token.
+ token := yaml_token_t{
+ typ: typ,
+ start_mark: start_mark,
+ end_mark: end_mark,
+ }
+ // Append the token to the queue.
+ yaml_insert_token(parser, -1, &token)
+ return true
+}
+
+// Produce the FLOW-SEQUENCE-START or FLOW-MAPPING-START token.
+func yaml_parser_fetch_flow_collection_start(parser *yaml_parser_t, typ yaml_token_type_t) bool {
+ // The indicators '[' and '{' may start a simple key.
+ if !yaml_parser_save_simple_key(parser) {
+ return false
+ }
+
+ // Increase the flow level.
+ if !yaml_parser_increase_flow_level(parser) {
+ return false
+ }
+
+ // A simple key may follow the indicators '[' and '{'.
+ parser.simple_key_allowed = true
+
+ // Consume the token.
+ start_mark := parser.mark
+ skip(parser)
+ end_mark := parser.mark
+
+ // Create the FLOW-SEQUENCE-START of FLOW-MAPPING-START token.
+ token := yaml_token_t{
+ typ: typ,
+ start_mark: start_mark,
+ end_mark: end_mark,
+ }
+ // Append the token to the queue.
+ yaml_insert_token(parser, -1, &token)
+ return true
+}
+
+// Produce the FLOW-SEQUENCE-END or FLOW-MAPPING-END token.
+func yaml_parser_fetch_flow_collection_end(parser *yaml_parser_t, typ yaml_token_type_t) bool {
+ // Reset any potential simple key on the current flow level.
+ if !yaml_parser_remove_simple_key(parser) {
+ return false
+ }
+
+ // Decrease the flow level.
+ if !yaml_parser_decrease_flow_level(parser) {
+ return false
+ }
+
+ // No simple keys after the indicators ']' and '}'.
+ parser.simple_key_allowed = false
+
+ // Consume the token.
+
+ start_mark := parser.mark
+ skip(parser)
+ end_mark := parser.mark
+
+ // Create the FLOW-SEQUENCE-END of FLOW-MAPPING-END token.
+ token := yaml_token_t{
+ typ: typ,
+ start_mark: start_mark,
+ end_mark: end_mark,
+ }
+ // Append the token to the queue.
+ yaml_insert_token(parser, -1, &token)
+ return true
+}
+
+// Produce the FLOW-ENTRY token.
+func yaml_parser_fetch_flow_entry(parser *yaml_parser_t) bool {
+ // Reset any potential simple keys on the current flow level.
+ if !yaml_parser_remove_simple_key(parser) {
+ return false
+ }
+
+ // Simple keys are allowed after ','.
+ parser.simple_key_allowed = true
+
+ // Consume the token.
+ start_mark := parser.mark
+ skip(parser)
+ end_mark := parser.mark
+
+ // Create the FLOW-ENTRY token and append it to the queue.
+ token := yaml_token_t{
+ typ: yaml_FLOW_ENTRY_TOKEN,
+ start_mark: start_mark,
+ end_mark: end_mark,
+ }
+ yaml_insert_token(parser, -1, &token)
+ return true
+}
+
+// Produce the BLOCK-ENTRY token.
+func yaml_parser_fetch_block_entry(parser *yaml_parser_t) bool {
+ // Check if the scanner is in the block context.
+ if parser.flow_level == 0 {
+ // Check if we are allowed to start a new entry.
+ if !parser.simple_key_allowed {
+ return yaml_parser_set_scanner_error(parser, "", parser.mark,
+ "block sequence entries are not allowed in this context")
+ }
+ // Add the BLOCK-SEQUENCE-START token if needed.
+ if !yaml_parser_roll_indent(parser, parser.mark.column, -1, yaml_BLOCK_SEQUENCE_START_TOKEN, parser.mark) {
+ return false
+ }
+ } else {
+ // It is an error for the '-' indicator to occur in the flow context,
+ // but we let the Parser detect and report about it because the Parser
+ // is able to point to the context.
+ }
+
+ // Reset any potential simple keys on the current flow level.
+ if !yaml_parser_remove_simple_key(parser) {
+ return false
+ }
+
+ // Simple keys are allowed after '-'.
+ parser.simple_key_allowed = true
+
+ // Consume the token.
+ start_mark := parser.mark
+ skip(parser)
+ end_mark := parser.mark
+
+ // Create the BLOCK-ENTRY token and append it to the queue.
+ token := yaml_token_t{
+ typ: yaml_BLOCK_ENTRY_TOKEN,
+ start_mark: start_mark,
+ end_mark: end_mark,
+ }
+ yaml_insert_token(parser, -1, &token)
+ return true
+}
+
+// Produce the KEY token.
+func yaml_parser_fetch_key(parser *yaml_parser_t) bool {
+
+ // In the block context, additional checks are required.
+ if parser.flow_level == 0 {
+ // Check if we are allowed to start a new key (not nessesary simple).
+ if !parser.simple_key_allowed {
+ return yaml_parser_set_scanner_error(parser, "", parser.mark,
+ "mapping keys are not allowed in this context")
+ }
+ // Add the BLOCK-MAPPING-START token if needed.
+ if !yaml_parser_roll_indent(parser, parser.mark.column, -1, yaml_BLOCK_MAPPING_START_TOKEN, parser.mark) {
+ return false
+ }
+ }
+
+ // Reset any potential simple keys on the current flow level.
+ if !yaml_parser_remove_simple_key(parser) {
+ return false
+ }
+
+ // Simple keys are allowed after '?' in the block context.
+ parser.simple_key_allowed = parser.flow_level == 0
+
+ // Consume the token.
+ start_mark := parser.mark
+ skip(parser)
+ end_mark := parser.mark
+
+ // Create the KEY token and append it to the queue.
+ token := yaml_token_t{
+ typ: yaml_KEY_TOKEN,
+ start_mark: start_mark,
+ end_mark: end_mark,
+ }
+ yaml_insert_token(parser, -1, &token)
+ return true
+}
+
+// Produce the VALUE token.
+func yaml_parser_fetch_value(parser *yaml_parser_t) bool {
+
+ simple_key := &parser.simple_keys[len(parser.simple_keys)-1]
+
+ // Have we found a simple key?
+ if simple_key.possible {
+ // Create the KEY token and insert it into the queue.
+ token := yaml_token_t{
+ typ: yaml_KEY_TOKEN,
+ start_mark: simple_key.mark,
+ end_mark: simple_key.mark,
+ }
+ yaml_insert_token(parser, simple_key.token_number-parser.tokens_parsed, &token)
+
+ // In the block context, we may need to add the BLOCK-MAPPING-START token.
+ if !yaml_parser_roll_indent(parser, simple_key.mark.column,
+ simple_key.token_number,
+ yaml_BLOCK_MAPPING_START_TOKEN, simple_key.mark) {
+ return false
+ }
+
+ // Remove the simple key.
+ simple_key.possible = false
+
+ // A simple key cannot follow another simple key.
+ parser.simple_key_allowed = false
+
+ } else {
+ // The ':' indicator follows a complex key.
+
+ // In the block context, extra checks are required.
+ if parser.flow_level == 0 {
+
+ // Check if we are allowed to start a complex value.
+ if !parser.simple_key_allowed {
+ return yaml_parser_set_scanner_error(parser, "", parser.mark,
+ "mapping values are not allowed in this context")
+ }
+
+ // Add the BLOCK-MAPPING-START token if needed.
+ if !yaml_parser_roll_indent(parser, parser.mark.column, -1, yaml_BLOCK_MAPPING_START_TOKEN, parser.mark) {
+ return false
+ }
+ }
+
+ // Simple keys after ':' are allowed in the block context.
+ parser.simple_key_allowed = parser.flow_level == 0
+ }
+
+ // Consume the token.
+ start_mark := parser.mark
+ skip(parser)
+ end_mark := parser.mark
+
+ // Create the VALUE token and append it to the queue.
+ token := yaml_token_t{
+ typ: yaml_VALUE_TOKEN,
+ start_mark: start_mark,
+ end_mark: end_mark,
+ }
+ yaml_insert_token(parser, -1, &token)
+ return true
+}
+
+// Produce the ALIAS or ANCHOR token.
+func yaml_parser_fetch_anchor(parser *yaml_parser_t, typ yaml_token_type_t) bool {
+ // An anchor or an alias could be a simple key.
+ if !yaml_parser_save_simple_key(parser) {
+ return false
+ }
+
+ // A simple key cannot follow an anchor or an alias.
+ parser.simple_key_allowed = false
+
+ // Create the ALIAS or ANCHOR token and append it to the queue.
+ var token yaml_token_t
+ if !yaml_parser_scan_anchor(parser, &token, typ) {
+ return false
+ }
+ yaml_insert_token(parser, -1, &token)
+ return true
+}
+
+// Produce the TAG token.
+func yaml_parser_fetch_tag(parser *yaml_parser_t) bool {
+ // A tag could be a simple key.
+ if !yaml_parser_save_simple_key(parser) {
+ return false
+ }
+
+ // A simple key cannot follow a tag.
+ parser.simple_key_allowed = false
+
+ // Create the TAG token and append it to the queue.
+ var token yaml_token_t
+ if !yaml_parser_scan_tag(parser, &token) {
+ return false
+ }
+ yaml_insert_token(parser, -1, &token)
+ return true
+}
+
+// Produce the SCALAR(...,literal) or SCALAR(...,folded) tokens.
+func yaml_parser_fetch_block_scalar(parser *yaml_parser_t, literal bool) bool {
+ // Remove any potential simple keys.
+ if !yaml_parser_remove_simple_key(parser) {
+ return false
+ }
+
+ // A simple key may follow a block scalar.
+ parser.simple_key_allowed = true
+
+ // Create the SCALAR token and append it to the queue.
+ var token yaml_token_t
+ if !yaml_parser_scan_block_scalar(parser, &token, literal) {
+ return false
+ }
+ yaml_insert_token(parser, -1, &token)
+ return true
+}
+
+// Produce the SCALAR(...,single-quoted) or SCALAR(...,double-quoted) tokens.
+func yaml_parser_fetch_flow_scalar(parser *yaml_parser_t, single bool) bool {
+ // A plain scalar could be a simple key.
+ if !yaml_parser_save_simple_key(parser) {
+ return false
+ }
+
+ // A simple key cannot follow a flow scalar.
+ parser.simple_key_allowed = false
+
+ // Create the SCALAR token and append it to the queue.
+ var token yaml_token_t
+ if !yaml_parser_scan_flow_scalar(parser, &token, single) {
+ return false
+ }
+ yaml_insert_token(parser, -1, &token)
+ return true
+}
+
+// Produce the SCALAR(...,plain) token.
+func yaml_parser_fetch_plain_scalar(parser *yaml_parser_t) bool {
+ // A plain scalar could be a simple key.
+ if !yaml_parser_save_simple_key(parser) {
+ return false
+ }
+
+ // A simple key cannot follow a flow scalar.
+ parser.simple_key_allowed = false
+
+ // Create the SCALAR token and append it to the queue.
+ var token yaml_token_t
+ if !yaml_parser_scan_plain_scalar(parser, &token) {
+ return false
+ }
+ yaml_insert_token(parser, -1, &token)
+ return true
+}
+
+// Eat whitespaces and comments until the next token is found.
+func yaml_parser_scan_to_next_token(parser *yaml_parser_t) bool {
+
+ // Until the next token is not found.
+ for {
+ // Allow the BOM mark to start a line.
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+ if parser.mark.column == 0 && is_bom(parser.buffer, parser.buffer_pos) {
+ skip(parser)
+ }
+
+ // Eat whitespaces.
+ // Tabs are allowed:
+ // - in the flow context
+ // - in the block context, but not at the beginning of the line or
+ // after '-', '?', or ':' (complex value).
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+
+ for parser.buffer[parser.buffer_pos] == ' ' || ((parser.flow_level > 0 || !parser.simple_key_allowed) && parser.buffer[parser.buffer_pos] == '\t') {
+ skip(parser)
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+ }
+
+ // Eat a comment until a line break.
+ if parser.buffer[parser.buffer_pos] == '#' {
+ for !is_breakz(parser.buffer, parser.buffer_pos) {
+ skip(parser)
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+ }
+ }
+
+ // If it is a line break, eat it.
+ if is_break(parser.buffer, parser.buffer_pos) {
+ if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
+ return false
+ }
+ skip_line(parser)
+
+ // In the block context, a new line may start a simple key.
+ if parser.flow_level == 0 {
+ parser.simple_key_allowed = true
+ }
+ } else {
+ break // We have found a token.
+ }
+ }
+
+ return true
+}
+
+// Scan a YAML-DIRECTIVE or TAG-DIRECTIVE token.
+//
+// Scope:
+// %YAML 1.1 # a comment \n
+// ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+// %TAG !yaml! tag:yaml.org,2002: \n
+// ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+//
+func yaml_parser_scan_directive(parser *yaml_parser_t, token *yaml_token_t) bool {
+ // Eat '%'.
+ start_mark := parser.mark
+ skip(parser)
+
+ // Scan the directive name.
+ var name []byte
+ if !yaml_parser_scan_directive_name(parser, start_mark, &name) {
+ return false
+ }
+
+ // Is it a YAML directive?
+ if bytes.Equal(name, []byte("YAML")) {
+ // Scan the VERSION directive value.
+ var major, minor int8
+ if !yaml_parser_scan_version_directive_value(parser, start_mark, &major, &minor) {
+ return false
+ }
+ end_mark := parser.mark
+
+ // Create a VERSION-DIRECTIVE token.
+ *token = yaml_token_t{
+ typ: yaml_VERSION_DIRECTIVE_TOKEN,
+ start_mark: start_mark,
+ end_mark: end_mark,
+ major: major,
+ minor: minor,
+ }
+
+ // Is it a TAG directive?
+ } else if bytes.Equal(name, []byte("TAG")) {
+ // Scan the TAG directive value.
+ var handle, prefix []byte
+ if !yaml_parser_scan_tag_directive_value(parser, start_mark, &handle, &prefix) {
+ return false
+ }
+ end_mark := parser.mark
+
+ // Create a TAG-DIRECTIVE token.
+ *token = yaml_token_t{
+ typ: yaml_TAG_DIRECTIVE_TOKEN,
+ start_mark: start_mark,
+ end_mark: end_mark,
+ value: handle,
+ prefix: prefix,
+ }
+
+ // Unknown directive.
+ } else {
+ yaml_parser_set_scanner_error(parser, "while scanning a directive",
+ start_mark, "found unknown directive name")
+ return false
+ }
+
+ // Eat the rest of the line including any comments.
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+
+ for is_blank(parser.buffer, parser.buffer_pos) {
+ skip(parser)
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+ }
+
+ if parser.buffer[parser.buffer_pos] == '#' {
+ for !is_breakz(parser.buffer, parser.buffer_pos) {
+ skip(parser)
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+ }
+ }
+
+ // Check if we are at the end of the line.
+ if !is_breakz(parser.buffer, parser.buffer_pos) {
+ yaml_parser_set_scanner_error(parser, "while scanning a directive",
+ start_mark, "did not find expected comment or line break")
+ return false
+ }
+
+ // Eat a line break.
+ if is_break(parser.buffer, parser.buffer_pos) {
+ if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
+ return false
+ }
+ skip_line(parser)
+ }
+
+ return true
+}
+
+// Scan the directive name.
+//
+// Scope:
+// %YAML 1.1 # a comment \n
+// ^^^^
+// %TAG !yaml! tag:yaml.org,2002: \n
+// ^^^
+//
+func yaml_parser_scan_directive_name(parser *yaml_parser_t, start_mark yaml_mark_t, name *[]byte) bool {
+ // Consume the directive name.
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+
+ var s []byte
+ for is_alpha(parser.buffer, parser.buffer_pos) {
+ s = read(parser, s)
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+ }
+
+ // Check if the name is empty.
+ if len(s) == 0 {
+ yaml_parser_set_scanner_error(parser, "while scanning a directive",
+ start_mark, "could not find expected directive name")
+ return false
+ }
+
+ // Check for an blank character after the name.
+ if !is_blankz(parser.buffer, parser.buffer_pos) {
+ yaml_parser_set_scanner_error(parser, "while scanning a directive",
+ start_mark, "found unexpected non-alphabetical character")
+ return false
+ }
+ *name = s
+ return true
+}
+
+// Scan the value of VERSION-DIRECTIVE.
+//
+// Scope:
+// %YAML 1.1 # a comment \n
+// ^^^^^^
+func yaml_parser_scan_version_directive_value(parser *yaml_parser_t, start_mark yaml_mark_t, major, minor *int8) bool {
+ // Eat whitespaces.
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+ for is_blank(parser.buffer, parser.buffer_pos) {
+ skip(parser)
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+ }
+
+ // Consume the major version number.
+ if !yaml_parser_scan_version_directive_number(parser, start_mark, major) {
+ return false
+ }
+
+ // Eat '.'.
+ if parser.buffer[parser.buffer_pos] != '.' {
+ return yaml_parser_set_scanner_error(parser, "while scanning a %YAML directive",
+ start_mark, "did not find expected digit or '.' character")
+ }
+
+ skip(parser)
+
+ // Consume the minor version number.
+ if !yaml_parser_scan_version_directive_number(parser, start_mark, minor) {
+ return false
+ }
+ return true
+}
+
+const max_number_length = 2
+
+// Scan the version number of VERSION-DIRECTIVE.
+//
+// Scope:
+// %YAML 1.1 # a comment \n
+// ^
+// %YAML 1.1 # a comment \n
+// ^
+func yaml_parser_scan_version_directive_number(parser *yaml_parser_t, start_mark yaml_mark_t, number *int8) bool {
+
+ // Repeat while the next character is digit.
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+ var value, length int8
+ for is_digit(parser.buffer, parser.buffer_pos) {
+ // Check if the number is too long.
+ length++
+ if length > max_number_length {
+ return yaml_parser_set_scanner_error(parser, "while scanning a %YAML directive",
+ start_mark, "found extremely long version number")
+ }
+ value = value*10 + int8(as_digit(parser.buffer, parser.buffer_pos))
+ skip(parser)
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+ }
+
+ // Check if the number was present.
+ if length == 0 {
+ return yaml_parser_set_scanner_error(parser, "while scanning a %YAML directive",
+ start_mark, "did not find expected version number")
+ }
+ *number = value
+ return true
+}
+
+// Scan the value of a TAG-DIRECTIVE token.
+//
+// Scope:
+// %TAG !yaml! tag:yaml.org,2002: \n
+// ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+//
+func yaml_parser_scan_tag_directive_value(parser *yaml_parser_t, start_mark yaml_mark_t, handle, prefix *[]byte) bool {
+ var handle_value, prefix_value []byte
+
+ // Eat whitespaces.
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+
+ for is_blank(parser.buffer, parser.buffer_pos) {
+ skip(parser)
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+ }
+
+ // Scan a handle.
+ if !yaml_parser_scan_tag_handle(parser, true, start_mark, &handle_value) {
+ return false
+ }
+
+ // Expect a whitespace.
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+ if !is_blank(parser.buffer, parser.buffer_pos) {
+ yaml_parser_set_scanner_error(parser, "while scanning a %TAG directive",
+ start_mark, "did not find expected whitespace")
+ return false
+ }
+
+ // Eat whitespaces.
+ for is_blank(parser.buffer, parser.buffer_pos) {
+ skip(parser)
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+ }
+
+ // Scan a prefix.
+ if !yaml_parser_scan_tag_uri(parser, true, nil, start_mark, &prefix_value) {
+ return false
+ }
+
+ // Expect a whitespace or line break.
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+ if !is_blankz(parser.buffer, parser.buffer_pos) {
+ yaml_parser_set_scanner_error(parser, "while scanning a %TAG directive",
+ start_mark, "did not find expected whitespace or line break")
+ return false
+ }
+
+ *handle = handle_value
+ *prefix = prefix_value
+ return true
+}
+
+func yaml_parser_scan_anchor(parser *yaml_parser_t, token *yaml_token_t, typ yaml_token_type_t) bool {
+ var s []byte
+
+ // Eat the indicator character.
+ start_mark := parser.mark
+ skip(parser)
+
+ // Consume the value.
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+
+ for is_alpha(parser.buffer, parser.buffer_pos) {
+ s = read(parser, s)
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+ }
+
+ end_mark := parser.mark
+
+ /*
+ * Check if length of the anchor is greater than 0 and it is followed by
+ * a whitespace character or one of the indicators:
+ *
+ * '?', ':', ',', ']', '}', '%', '@', '`'.
+ */
+
+ if len(s) == 0 ||
+ !(is_blankz(parser.buffer, parser.buffer_pos) || parser.buffer[parser.buffer_pos] == '?' ||
+ parser.buffer[parser.buffer_pos] == ':' || parser.buffer[parser.buffer_pos] == ',' ||
+ parser.buffer[parser.buffer_pos] == ']' || parser.buffer[parser.buffer_pos] == '}' ||
+ parser.buffer[parser.buffer_pos] == '%' || parser.buffer[parser.buffer_pos] == '@' ||
+ parser.buffer[parser.buffer_pos] == '`') {
+ context := "while scanning an alias"
+ if typ == yaml_ANCHOR_TOKEN {
+ context = "while scanning an anchor"
+ }
+ yaml_parser_set_scanner_error(parser, context, start_mark,
+ "did not find expected alphabetic or numeric character")
+ return false
+ }
+
+ // Create a token.
+ *token = yaml_token_t{
+ typ: typ,
+ start_mark: start_mark,
+ end_mark: end_mark,
+ value: s,
+ }
+
+ return true
+}
+
+/*
+ * Scan a TAG token.
+ */
+
+func yaml_parser_scan_tag(parser *yaml_parser_t, token *yaml_token_t) bool {
+ var handle, suffix []byte
+
+ start_mark := parser.mark
+
+ // Check if the tag is in the canonical form.
+ if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
+ return false
+ }
+
+ if parser.buffer[parser.buffer_pos+1] == '<' {
+ // Keep the handle as ''
+
+ // Eat '!<'
+ skip(parser)
+ skip(parser)
+
+ // Consume the tag value.
+ if !yaml_parser_scan_tag_uri(parser, false, nil, start_mark, &suffix) {
+ return false
+ }
+
+ // Check for '>' and eat it.
+ if parser.buffer[parser.buffer_pos] != '>' {
+ yaml_parser_set_scanner_error(parser, "while scanning a tag",
+ start_mark, "did not find the expected '>'")
+ return false
+ }
+
+ skip(parser)
+ } else {
+ // The tag has either the '!suffix' or the '!handle!suffix' form.
+
+ // First, try to scan a handle.
+ if !yaml_parser_scan_tag_handle(parser, false, start_mark, &handle) {
+ return false
+ }
+
+ // Check if it is, indeed, handle.
+ if handle[0] == '!' && len(handle) > 1 && handle[len(handle)-1] == '!' {
+ // Scan the suffix now.
+ if !yaml_parser_scan_tag_uri(parser, false, nil, start_mark, &suffix) {
+ return false
+ }
+ } else {
+ // It wasn't a handle after all. Scan the rest of the tag.
+ if !yaml_parser_scan_tag_uri(parser, false, handle, start_mark, &suffix) {
+ return false
+ }
+
+ // Set the handle to '!'.
+ handle = []byte{'!'}
+
+ // A special case: the '!' tag. Set the handle to '' and the
+ // suffix to '!'.
+ if len(suffix) == 0 {
+ handle, suffix = suffix, handle
+ }
+ }
+ }
+
+ // Check the character which ends the tag.
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+ if !is_blankz(parser.buffer, parser.buffer_pos) {
+ yaml_parser_set_scanner_error(parser, "while scanning a tag",
+ start_mark, "did not find expected whitespace or line break")
+ return false
+ }
+
+ end_mark := parser.mark
+
+ // Create a token.
+ *token = yaml_token_t{
+ typ: yaml_TAG_TOKEN,
+ start_mark: start_mark,
+ end_mark: end_mark,
+ value: handle,
+ suffix: suffix,
+ }
+ return true
+}
+
+// Scan a tag handle.
+func yaml_parser_scan_tag_handle(parser *yaml_parser_t, directive bool, start_mark yaml_mark_t, handle *[]byte) bool {
+ // Check the initial '!' character.
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+ if parser.buffer[parser.buffer_pos] != '!' {
+ yaml_parser_set_scanner_tag_error(parser, directive,
+ start_mark, "did not find expected '!'")
+ return false
+ }
+
+ var s []byte
+
+ // Copy the '!' character.
+ s = read(parser, s)
+
+ // Copy all subsequent alphabetical and numerical characters.
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+ for is_alpha(parser.buffer, parser.buffer_pos) {
+ s = read(parser, s)
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+ }
+
+ // Check if the trailing character is '!' and copy it.
+ if parser.buffer[parser.buffer_pos] == '!' {
+ s = read(parser, s)
+ } else {
+ // It's either the '!' tag or not really a tag handle. If it's a %TAG
+ // directive, it's an error. If it's a tag token, it must be a part of URI.
+ if directive && string(s) != "!" {
+ yaml_parser_set_scanner_tag_error(parser, directive,
+ start_mark, "did not find expected '!'")
+ return false
+ }
+ }
+
+ *handle = s
+ return true
+}
+
+// Scan a tag.
+func yaml_parser_scan_tag_uri(parser *yaml_parser_t, directive bool, head []byte, start_mark yaml_mark_t, uri *[]byte) bool {
+ //size_t length = head ? strlen((char *)head) : 0
+ var s []byte
+ hasTag := len(head) > 0
+
+ // Copy the head if needed.
+ //
+ // Note that we don't copy the leading '!' character.
+ if len(head) > 1 {
+ s = append(s, head[1:]...)
+ }
+
+ // Scan the tag.
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+
+ // The set of characters that may appear in URI is as follows:
+ //
+ // '0'-'9', 'A'-'Z', 'a'-'z', '_', '-', ';', '/', '?', ':', '@', '&',
+ // '=', '+', '$', ',', '.', '!', '~', '*', '\'', '(', ')', '[', ']',
+ // '%'.
+ // [Go] Convert this into more reasonable logic.
+ for is_alpha(parser.buffer, parser.buffer_pos) || parser.buffer[parser.buffer_pos] == ';' ||
+ parser.buffer[parser.buffer_pos] == '/' || parser.buffer[parser.buffer_pos] == '?' ||
+ parser.buffer[parser.buffer_pos] == ':' || parser.buffer[parser.buffer_pos] == '@' ||
+ parser.buffer[parser.buffer_pos] == '&' || parser.buffer[parser.buffer_pos] == '=' ||
+ parser.buffer[parser.buffer_pos] == '+' || parser.buffer[parser.buffer_pos] == '$' ||
+ parser.buffer[parser.buffer_pos] == ',' || parser.buffer[parser.buffer_pos] == '.' ||
+ parser.buffer[parser.buffer_pos] == '!' || parser.buffer[parser.buffer_pos] == '~' ||
+ parser.buffer[parser.buffer_pos] == '*' || parser.buffer[parser.buffer_pos] == '\'' ||
+ parser.buffer[parser.buffer_pos] == '(' || parser.buffer[parser.buffer_pos] == ')' ||
+ parser.buffer[parser.buffer_pos] == '[' || parser.buffer[parser.buffer_pos] == ']' ||
+ parser.buffer[parser.buffer_pos] == '%' {
+ // Check if it is a URI-escape sequence.
+ if parser.buffer[parser.buffer_pos] == '%' {
+ if !yaml_parser_scan_uri_escapes(parser, directive, start_mark, &s) {
+ return false
+ }
+ } else {
+ s = read(parser, s)
+ }
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+ hasTag = true
+ }
+
+ if !hasTag {
+ yaml_parser_set_scanner_tag_error(parser, directive,
+ start_mark, "did not find expected tag URI")
+ return false
+ }
+ *uri = s
+ return true
+}
+
+// Decode an URI-escape sequence corresponding to a single UTF-8 character.
+func yaml_parser_scan_uri_escapes(parser *yaml_parser_t, directive bool, start_mark yaml_mark_t, s *[]byte) bool {
+
+ // Decode the required number of characters.
+ w := 1024
+ for w > 0 {
+ // Check for a URI-escaped octet.
+ if parser.unread < 3 && !yaml_parser_update_buffer(parser, 3) {
+ return false
+ }
+
+ if !(parser.buffer[parser.buffer_pos] == '%' &&
+ is_hex(parser.buffer, parser.buffer_pos+1) &&
+ is_hex(parser.buffer, parser.buffer_pos+2)) {
+ return yaml_parser_set_scanner_tag_error(parser, directive,
+ start_mark, "did not find URI escaped octet")
+ }
+
+ // Get the octet.
+ octet := byte((as_hex(parser.buffer, parser.buffer_pos+1) << 4) + as_hex(parser.buffer, parser.buffer_pos+2))
+
+ // If it is the leading octet, determine the length of the UTF-8 sequence.
+ if w == 1024 {
+ w = width(octet)
+ if w == 0 {
+ return yaml_parser_set_scanner_tag_error(parser, directive,
+ start_mark, "found an incorrect leading UTF-8 octet")
+ }
+ } else {
+ // Check if the trailing octet is correct.
+ if octet&0xC0 != 0x80 {
+ return yaml_parser_set_scanner_tag_error(parser, directive,
+ start_mark, "found an incorrect trailing UTF-8 octet")
+ }
+ }
+
+ // Copy the octet and move the pointers.
+ *s = append(*s, octet)
+ skip(parser)
+ skip(parser)
+ skip(parser)
+ w--
+ }
+ return true
+}
+
+// Scan a block scalar.
+func yaml_parser_scan_block_scalar(parser *yaml_parser_t, token *yaml_token_t, literal bool) bool {
+ // Eat the indicator '|' or '>'.
+ start_mark := parser.mark
+ skip(parser)
+
+ // Scan the additional block scalar indicators.
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+
+ // Check for a chomping indicator.
+ var chomping, increment int
+ if parser.buffer[parser.buffer_pos] == '+' || parser.buffer[parser.buffer_pos] == '-' {
+ // Set the chomping method and eat the indicator.
+ if parser.buffer[parser.buffer_pos] == '+' {
+ chomping = +1
+ } else {
+ chomping = -1
+ }
+ skip(parser)
+
+ // Check for an indentation indicator.
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+ if is_digit(parser.buffer, parser.buffer_pos) {
+ // Check that the indentation is greater than 0.
+ if parser.buffer[parser.buffer_pos] == '0' {
+ yaml_parser_set_scanner_error(parser, "while scanning a block scalar",
+ start_mark, "found an indentation indicator equal to 0")
+ return false
+ }
+
+ // Get the indentation level and eat the indicator.
+ increment = as_digit(parser.buffer, parser.buffer_pos)
+ skip(parser)
+ }
+
+ } else if is_digit(parser.buffer, parser.buffer_pos) {
+ // Do the same as above, but in the opposite order.
+
+ if parser.buffer[parser.buffer_pos] == '0' {
+ yaml_parser_set_scanner_error(parser, "while scanning a block scalar",
+ start_mark, "found an indentation indicator equal to 0")
+ return false
+ }
+ increment = as_digit(parser.buffer, parser.buffer_pos)
+ skip(parser)
+
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+ if parser.buffer[parser.buffer_pos] == '+' || parser.buffer[parser.buffer_pos] == '-' {
+ if parser.buffer[parser.buffer_pos] == '+' {
+ chomping = +1
+ } else {
+ chomping = -1
+ }
+ skip(parser)
+ }
+ }
+
+ // Eat whitespaces and comments to the end of the line.
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+ for is_blank(parser.buffer, parser.buffer_pos) {
+ skip(parser)
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+ }
+ if parser.buffer[parser.buffer_pos] == '#' {
+ for !is_breakz(parser.buffer, parser.buffer_pos) {
+ skip(parser)
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+ }
+ }
+
+ // Check if we are at the end of the line.
+ if !is_breakz(parser.buffer, parser.buffer_pos) {
+ yaml_parser_set_scanner_error(parser, "while scanning a block scalar",
+ start_mark, "did not find expected comment or line break")
+ return false
+ }
+
+ // Eat a line break.
+ if is_break(parser.buffer, parser.buffer_pos) {
+ if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
+ return false
+ }
+ skip_line(parser)
+ }
+
+ end_mark := parser.mark
+
+ // Set the indentation level if it was specified.
+ var indent int
+ if increment > 0 {
+ if parser.indent >= 0 {
+ indent = parser.indent + increment
+ } else {
+ indent = increment
+ }
+ }
+
+ // Scan the leading line breaks and determine the indentation level if needed.
+ var s, leading_break, trailing_breaks []byte
+ if !yaml_parser_scan_block_scalar_breaks(parser, &indent, &trailing_breaks, start_mark, &end_mark) {
+ return false
+ }
+
+ // Scan the block scalar content.
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+ var leading_blank, trailing_blank bool
+ for parser.mark.column == indent && !is_z(parser.buffer, parser.buffer_pos) {
+ // We are at the beginning of a non-empty line.
+
+ // Is it a trailing whitespace?
+ trailing_blank = is_blank(parser.buffer, parser.buffer_pos)
+
+ // Check if we need to fold the leading line break.
+ if !literal && !leading_blank && !trailing_blank && len(leading_break) > 0 && leading_break[0] == '\n' {
+ // Do we need to join the lines by space?
+ if len(trailing_breaks) == 0 {
+ s = append(s, ' ')
+ }
+ } else {
+ s = append(s, leading_break...)
+ }
+ leading_break = leading_break[:0]
+
+ // Append the remaining line breaks.
+ s = append(s, trailing_breaks...)
+ trailing_breaks = trailing_breaks[:0]
+
+ // Is it a leading whitespace?
+ leading_blank = is_blank(parser.buffer, parser.buffer_pos)
+
+ // Consume the current line.
+ for !is_breakz(parser.buffer, parser.buffer_pos) {
+ s = read(parser, s)
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+ }
+
+ // Consume the line break.
+ if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
+ return false
+ }
+
+ leading_break = read_line(parser, leading_break)
+
+ // Eat the following indentation spaces and line breaks.
+ if !yaml_parser_scan_block_scalar_breaks(parser, &indent, &trailing_breaks, start_mark, &end_mark) {
+ return false
+ }
+ }
+
+ // Chomp the tail.
+ if chomping != -1 {
+ s = append(s, leading_break...)
+ }
+ if chomping == 1 {
+ s = append(s, trailing_breaks...)
+ }
+
+ // Create a token.
+ *token = yaml_token_t{
+ typ: yaml_SCALAR_TOKEN,
+ start_mark: start_mark,
+ end_mark: end_mark,
+ value: s,
+ style: yaml_LITERAL_SCALAR_STYLE,
+ }
+ if !literal {
+ token.style = yaml_FOLDED_SCALAR_STYLE
+ }
+ return true
+}
+
+// Scan indentation spaces and line breaks for a block scalar. Determine the
+// indentation level if needed.
+func yaml_parser_scan_block_scalar_breaks(parser *yaml_parser_t, indent *int, breaks *[]byte, start_mark yaml_mark_t, end_mark *yaml_mark_t) bool {
+ *end_mark = parser.mark
+
+ // Eat the indentation spaces and line breaks.
+ max_indent := 0
+ for {
+ // Eat the indentation spaces.
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+ for (*indent == 0 || parser.mark.column < *indent) && is_space(parser.buffer, parser.buffer_pos) {
+ skip(parser)
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+ }
+ if parser.mark.column > max_indent {
+ max_indent = parser.mark.column
+ }
+
+ // Check for a tab character messing the indentation.
+ if (*indent == 0 || parser.mark.column < *indent) && is_tab(parser.buffer, parser.buffer_pos) {
+ return yaml_parser_set_scanner_error(parser, "while scanning a block scalar",
+ start_mark, "found a tab character where an indentation space is expected")
+ }
+
+ // Have we found a non-empty line?
+ if !is_break(parser.buffer, parser.buffer_pos) {
+ break
+ }
+
+ // Consume the line break.
+ if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
+ return false
+ }
+ // [Go] Should really be returning breaks instead.
+ *breaks = read_line(parser, *breaks)
+ *end_mark = parser.mark
+ }
+
+ // Determine the indentation level if needed.
+ if *indent == 0 {
+ *indent = max_indent
+ if *indent < parser.indent+1 {
+ *indent = parser.indent + 1
+ }
+ if *indent < 1 {
+ *indent = 1
+ }
+ }
+ return true
+}
+
+// Scan a quoted scalar.
+func yaml_parser_scan_flow_scalar(parser *yaml_parser_t, token *yaml_token_t, single bool) bool {
+ // Eat the left quote.
+ start_mark := parser.mark
+ skip(parser)
+
+ // Consume the content of the quoted scalar.
+ var s, leading_break, trailing_breaks, whitespaces []byte
+ for {
+ // Check that there are no document indicators at the beginning of the line.
+ if parser.unread < 4 && !yaml_parser_update_buffer(parser, 4) {
+ return false
+ }
+
+ if parser.mark.column == 0 &&
+ ((parser.buffer[parser.buffer_pos+0] == '-' &&
+ parser.buffer[parser.buffer_pos+1] == '-' &&
+ parser.buffer[parser.buffer_pos+2] == '-') ||
+ (parser.buffer[parser.buffer_pos+0] == '.' &&
+ parser.buffer[parser.buffer_pos+1] == '.' &&
+ parser.buffer[parser.buffer_pos+2] == '.')) &&
+ is_blankz(parser.buffer, parser.buffer_pos+3) {
+ yaml_parser_set_scanner_error(parser, "while scanning a quoted scalar",
+ start_mark, "found unexpected document indicator")
+ return false
+ }
+
+ // Check for EOF.
+ if is_z(parser.buffer, parser.buffer_pos) {
+ yaml_parser_set_scanner_error(parser, "while scanning a quoted scalar",
+ start_mark, "found unexpected end of stream")
+ return false
+ }
+
+ // Consume non-blank characters.
+ leading_blanks := false
+ for !is_blankz(parser.buffer, parser.buffer_pos) {
+ if single && parser.buffer[parser.buffer_pos] == '\'' && parser.buffer[parser.buffer_pos+1] == '\'' {
+ // Is is an escaped single quote.
+ s = append(s, '\'')
+ skip(parser)
+ skip(parser)
+
+ } else if single && parser.buffer[parser.buffer_pos] == '\'' {
+ // It is a right single quote.
+ break
+ } else if !single && parser.buffer[parser.buffer_pos] == '"' {
+ // It is a right double quote.
+ break
+
+ } else if !single && parser.buffer[parser.buffer_pos] == '\\' && is_break(parser.buffer, parser.buffer_pos+1) {
+ // It is an escaped line break.
+ if parser.unread < 3 && !yaml_parser_update_buffer(parser, 3) {
+ return false
+ }
+ skip(parser)
+ skip_line(parser)
+ leading_blanks = true
+ break
+
+ } else if !single && parser.buffer[parser.buffer_pos] == '\\' {
+ // It is an escape sequence.
+ code_length := 0
+
+ // Check the escape character.
+ switch parser.buffer[parser.buffer_pos+1] {
+ case '0':
+ s = append(s, 0)
+ case 'a':
+ s = append(s, '\x07')
+ case 'b':
+ s = append(s, '\x08')
+ case 't', '\t':
+ s = append(s, '\x09')
+ case 'n':
+ s = append(s, '\x0A')
+ case 'v':
+ s = append(s, '\x0B')
+ case 'f':
+ s = append(s, '\x0C')
+ case 'r':
+ s = append(s, '\x0D')
+ case 'e':
+ s = append(s, '\x1B')
+ case ' ':
+ s = append(s, '\x20')
+ case '"':
+ s = append(s, '"')
+ case '\'':
+ s = append(s, '\'')
+ case '\\':
+ s = append(s, '\\')
+ case 'N': // NEL (#x85)
+ s = append(s, '\xC2')
+ s = append(s, '\x85')
+ case '_': // #xA0
+ s = append(s, '\xC2')
+ s = append(s, '\xA0')
+ case 'L': // LS (#x2028)
+ s = append(s, '\xE2')
+ s = append(s, '\x80')
+ s = append(s, '\xA8')
+ case 'P': // PS (#x2029)
+ s = append(s, '\xE2')
+ s = append(s, '\x80')
+ s = append(s, '\xA9')
+ case 'x':
+ code_length = 2
+ case 'u':
+ code_length = 4
+ case 'U':
+ code_length = 8
+ default:
+ yaml_parser_set_scanner_error(parser, "while parsing a quoted scalar",
+ start_mark, "found unknown escape character")
+ return false
+ }
+
+ skip(parser)
+ skip(parser)
+
+ // Consume an arbitrary escape code.
+ if code_length > 0 {
+ var value int
+
+ // Scan the character value.
+ if parser.unread < code_length && !yaml_parser_update_buffer(parser, code_length) {
+ return false
+ }
+ for k := 0; k < code_length; k++ {
+ if !is_hex(parser.buffer, parser.buffer_pos+k) {
+ yaml_parser_set_scanner_error(parser, "while parsing a quoted scalar",
+ start_mark, "did not find expected hexdecimal number")
+ return false
+ }
+ value = (value << 4) + as_hex(parser.buffer, parser.buffer_pos+k)
+ }
+
+ // Check the value and write the character.
+ if (value >= 0xD800 && value <= 0xDFFF) || value > 0x10FFFF {
+ yaml_parser_set_scanner_error(parser, "while parsing a quoted scalar",
+ start_mark, "found invalid Unicode character escape code")
+ return false
+ }
+ if value <= 0x7F {
+ s = append(s, byte(value))
+ } else if value <= 0x7FF {
+ s = append(s, byte(0xC0+(value>>6)))
+ s = append(s, byte(0x80+(value&0x3F)))
+ } else if value <= 0xFFFF {
+ s = append(s, byte(0xE0+(value>>12)))
+ s = append(s, byte(0x80+((value>>6)&0x3F)))
+ s = append(s, byte(0x80+(value&0x3F)))
+ } else {
+ s = append(s, byte(0xF0+(value>>18)))
+ s = append(s, byte(0x80+((value>>12)&0x3F)))
+ s = append(s, byte(0x80+((value>>6)&0x3F)))
+ s = append(s, byte(0x80+(value&0x3F)))
+ }
+
+ // Advance the pointer.
+ for k := 0; k < code_length; k++ {
+ skip(parser)
+ }
+ }
+ } else {
+ // It is a non-escaped non-blank character.
+ s = read(parser, s)
+ }
+ if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
+ return false
+ }
+ }
+
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+
+ // Check if we are at the end of the scalar.
+ if single {
+ if parser.buffer[parser.buffer_pos] == '\'' {
+ break
+ }
+ } else {
+ if parser.buffer[parser.buffer_pos] == '"' {
+ break
+ }
+ }
+
+ // Consume blank characters.
+ for is_blank(parser.buffer, parser.buffer_pos) || is_break(parser.buffer, parser.buffer_pos) {
+ if is_blank(parser.buffer, parser.buffer_pos) {
+ // Consume a space or a tab character.
+ if !leading_blanks {
+ whitespaces = read(parser, whitespaces)
+ } else {
+ skip(parser)
+ }
+ } else {
+ if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
+ return false
+ }
+
+ // Check if it is a first line break.
+ if !leading_blanks {
+ whitespaces = whitespaces[:0]
+ leading_break = read_line(parser, leading_break)
+ leading_blanks = true
+ } else {
+ trailing_breaks = read_line(parser, trailing_breaks)
+ }
+ }
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+ }
+
+ // Join the whitespaces or fold line breaks.
+ if leading_blanks {
+ // Do we need to fold line breaks?
+ if len(leading_break) > 0 && leading_break[0] == '\n' {
+ if len(trailing_breaks) == 0 {
+ s = append(s, ' ')
+ } else {
+ s = append(s, trailing_breaks...)
+ }
+ } else {
+ s = append(s, leading_break...)
+ s = append(s, trailing_breaks...)
+ }
+ trailing_breaks = trailing_breaks[:0]
+ leading_break = leading_break[:0]
+ } else {
+ s = append(s, whitespaces...)
+ whitespaces = whitespaces[:0]
+ }
+ }
+
+ // Eat the right quote.
+ skip(parser)
+ end_mark := parser.mark
+
+ // Create a token.
+ *token = yaml_token_t{
+ typ: yaml_SCALAR_TOKEN,
+ start_mark: start_mark,
+ end_mark: end_mark,
+ value: s,
+ style: yaml_SINGLE_QUOTED_SCALAR_STYLE,
+ }
+ if !single {
+ token.style = yaml_DOUBLE_QUOTED_SCALAR_STYLE
+ }
+ return true
+}
+
+// Scan a plain scalar.
+func yaml_parser_scan_plain_scalar(parser *yaml_parser_t, token *yaml_token_t) bool {
+
+ var s, leading_break, trailing_breaks, whitespaces []byte
+ var leading_blanks bool
+ var indent = parser.indent + 1
+
+ start_mark := parser.mark
+ end_mark := parser.mark
+
+ // Consume the content of the plain scalar.
+ for {
+ // Check for a document indicator.
+ if parser.unread < 4 && !yaml_parser_update_buffer(parser, 4) {
+ return false
+ }
+ if parser.mark.column == 0 &&
+ ((parser.buffer[parser.buffer_pos+0] == '-' &&
+ parser.buffer[parser.buffer_pos+1] == '-' &&
+ parser.buffer[parser.buffer_pos+2] == '-') ||
+ (parser.buffer[parser.buffer_pos+0] == '.' &&
+ parser.buffer[parser.buffer_pos+1] == '.' &&
+ parser.buffer[parser.buffer_pos+2] == '.')) &&
+ is_blankz(parser.buffer, parser.buffer_pos+3) {
+ break
+ }
+
+ // Check for a comment.
+ if parser.buffer[parser.buffer_pos] == '#' {
+ break
+ }
+
+ // Consume non-blank characters.
+ for !is_blankz(parser.buffer, parser.buffer_pos) {
+
+ // Check for indicators that may end a plain scalar.
+ if (parser.buffer[parser.buffer_pos] == ':' && is_blankz(parser.buffer, parser.buffer_pos+1)) ||
+ (parser.flow_level > 0 &&
+ (parser.buffer[parser.buffer_pos] == ',' ||
+ parser.buffer[parser.buffer_pos] == '?' || parser.buffer[parser.buffer_pos] == '[' ||
+ parser.buffer[parser.buffer_pos] == ']' || parser.buffer[parser.buffer_pos] == '{' ||
+ parser.buffer[parser.buffer_pos] == '}')) {
+ break
+ }
+
+ // Check if we need to join whitespaces and breaks.
+ if leading_blanks || len(whitespaces) > 0 {
+ if leading_blanks {
+ // Do we need to fold line breaks?
+ if leading_break[0] == '\n' {
+ if len(trailing_breaks) == 0 {
+ s = append(s, ' ')
+ } else {
+ s = append(s, trailing_breaks...)
+ }
+ } else {
+ s = append(s, leading_break...)
+ s = append(s, trailing_breaks...)
+ }
+ trailing_breaks = trailing_breaks[:0]
+ leading_break = leading_break[:0]
+ leading_blanks = false
+ } else {
+ s = append(s, whitespaces...)
+ whitespaces = whitespaces[:0]
+ }
+ }
+
+ // Copy the character.
+ s = read(parser, s)
+
+ end_mark = parser.mark
+ if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
+ return false
+ }
+ }
+
+ // Is it the end?
+ if !(is_blank(parser.buffer, parser.buffer_pos) || is_break(parser.buffer, parser.buffer_pos)) {
+ break
+ }
+
+ // Consume blank characters.
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+
+ for is_blank(parser.buffer, parser.buffer_pos) || is_break(parser.buffer, parser.buffer_pos) {
+ if is_blank(parser.buffer, parser.buffer_pos) {
+
+ // Check for tab characters that abuse indentation.
+ if leading_blanks && parser.mark.column < indent && is_tab(parser.buffer, parser.buffer_pos) {
+ yaml_parser_set_scanner_error(parser, "while scanning a plain scalar",
+ start_mark, "found a tab character that violates indentation")
+ return false
+ }
+
+ // Consume a space or a tab character.
+ if !leading_blanks {
+ whitespaces = read(parser, whitespaces)
+ } else {
+ skip(parser)
+ }
+ } else {
+ if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) {
+ return false
+ }
+
+ // Check if it is a first line break.
+ if !leading_blanks {
+ whitespaces = whitespaces[:0]
+ leading_break = read_line(parser, leading_break)
+ leading_blanks = true
+ } else {
+ trailing_breaks = read_line(parser, trailing_breaks)
+ }
+ }
+ if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) {
+ return false
+ }
+ }
+
+ // Check indentation level.
+ if parser.flow_level == 0 && parser.mark.column < indent {
+ break
+ }
+ }
+
+ // Create a token.
+ *token = yaml_token_t{
+ typ: yaml_SCALAR_TOKEN,
+ start_mark: start_mark,
+ end_mark: end_mark,
+ value: s,
+ style: yaml_PLAIN_SCALAR_STYLE,
+ }
+
+ // Note that we change the 'simple_key_allowed' flag.
+ if leading_blanks {
+ parser.simple_key_allowed = true
+ }
+ return true
+}
diff --git a/vendor/gopkg.in/yaml.v2/sorter.go b/vendor/gopkg.in/yaml.v2/sorter.go
new file mode 100644
index 0000000..4c45e66
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/sorter.go
@@ -0,0 +1,113 @@
+package yaml
+
+import (
+ "reflect"
+ "unicode"
+)
+
+type keyList []reflect.Value
+
+func (l keyList) Len() int { return len(l) }
+func (l keyList) Swap(i, j int) { l[i], l[j] = l[j], l[i] }
+func (l keyList) Less(i, j int) bool {
+ a := l[i]
+ b := l[j]
+ ak := a.Kind()
+ bk := b.Kind()
+ for (ak == reflect.Interface || ak == reflect.Ptr) && !a.IsNil() {
+ a = a.Elem()
+ ak = a.Kind()
+ }
+ for (bk == reflect.Interface || bk == reflect.Ptr) && !b.IsNil() {
+ b = b.Elem()
+ bk = b.Kind()
+ }
+ af, aok := keyFloat(a)
+ bf, bok := keyFloat(b)
+ if aok && bok {
+ if af != bf {
+ return af < bf
+ }
+ if ak != bk {
+ return ak < bk
+ }
+ return numLess(a, b)
+ }
+ if ak != reflect.String || bk != reflect.String {
+ return ak < bk
+ }
+ ar, br := []rune(a.String()), []rune(b.String())
+ for i := 0; i < len(ar) && i < len(br); i++ {
+ if ar[i] == br[i] {
+ continue
+ }
+ al := unicode.IsLetter(ar[i])
+ bl := unicode.IsLetter(br[i])
+ if al && bl {
+ return ar[i] < br[i]
+ }
+ if al || bl {
+ return bl
+ }
+ var ai, bi int
+ var an, bn int64
+ if ar[i] == '0' || br[i] == '0' {
+ for j := i-1; j >= 0 && unicode.IsDigit(ar[j]); j-- {
+ if ar[j] != '0' {
+ an = 1
+ bn = 1
+ break
+ }
+ }
+ }
+ for ai = i; ai < len(ar) && unicode.IsDigit(ar[ai]); ai++ {
+ an = an*10 + int64(ar[ai]-'0')
+ }
+ for bi = i; bi < len(br) && unicode.IsDigit(br[bi]); bi++ {
+ bn = bn*10 + int64(br[bi]-'0')
+ }
+ if an != bn {
+ return an < bn
+ }
+ if ai != bi {
+ return ai < bi
+ }
+ return ar[i] < br[i]
+ }
+ return len(ar) < len(br)
+}
+
+// keyFloat returns a float value for v if it is a number/bool
+// and whether it is a number/bool or not.
+func keyFloat(v reflect.Value) (f float64, ok bool) {
+ switch v.Kind() {
+ case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+ return float64(v.Int()), true
+ case reflect.Float32, reflect.Float64:
+ return v.Float(), true
+ case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+ return float64(v.Uint()), true
+ case reflect.Bool:
+ if v.Bool() {
+ return 1, true
+ }
+ return 0, true
+ }
+ return 0, false
+}
+
+// numLess returns whether a < b.
+// a and b must necessarily have the same kind.
+func numLess(a, b reflect.Value) bool {
+ switch a.Kind() {
+ case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+ return a.Int() < b.Int()
+ case reflect.Float32, reflect.Float64:
+ return a.Float() < b.Float()
+ case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+ return a.Uint() < b.Uint()
+ case reflect.Bool:
+ return !a.Bool() && b.Bool()
+ }
+ panic("not a number")
+}
diff --git a/vendor/gopkg.in/yaml.v2/writerc.go b/vendor/gopkg.in/yaml.v2/writerc.go
new file mode 100644
index 0000000..a2dde60
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/writerc.go
@@ -0,0 +1,26 @@
+package yaml
+
+// Set the writer error and return false.
+func yaml_emitter_set_writer_error(emitter *yaml_emitter_t, problem string) bool {
+ emitter.error = yaml_WRITER_ERROR
+ emitter.problem = problem
+ return false
+}
+
+// Flush the output buffer.
+func yaml_emitter_flush(emitter *yaml_emitter_t) bool {
+ if emitter.write_handler == nil {
+ panic("write handler not set")
+ }
+
+ // Check if the buffer is empty.
+ if emitter.buffer_pos == 0 {
+ return true
+ }
+
+ if err := emitter.write_handler(emitter, emitter.buffer[:emitter.buffer_pos]); err != nil {
+ return yaml_emitter_set_writer_error(emitter, "write error: "+err.Error())
+ }
+ emitter.buffer_pos = 0
+ return true
+}
diff --git a/vendor/gopkg.in/yaml.v2/yaml.go b/vendor/gopkg.in/yaml.v2/yaml.go
new file mode 100644
index 0000000..de85aa4
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/yaml.go
@@ -0,0 +1,466 @@
+// Package yaml implements YAML support for the Go language.
+//
+// Source code and other details for the project are available at GitHub:
+//
+// https://github.com/go-yaml/yaml
+//
+package yaml
+
+import (
+ "errors"
+ "fmt"
+ "io"
+ "reflect"
+ "strings"
+ "sync"
+)
+
+// MapSlice encodes and decodes as a YAML map.
+// The order of keys is preserved when encoding and decoding.
+type MapSlice []MapItem
+
+// MapItem is an item in a MapSlice.
+type MapItem struct {
+ Key, Value interface{}
+}
+
+// The Unmarshaler interface may be implemented by types to customize their
+// behavior when being unmarshaled from a YAML document. The UnmarshalYAML
+// method receives a function that may be called to unmarshal the original
+// YAML value into a field or variable. It is safe to call the unmarshal
+// function parameter more than once if necessary.
+type Unmarshaler interface {
+ UnmarshalYAML(unmarshal func(interface{}) error) error
+}
+
+// The Marshaler interface may be implemented by types to customize their
+// behavior when being marshaled into a YAML document. The returned value
+// is marshaled in place of the original value implementing Marshaler.
+//
+// If an error is returned by MarshalYAML, the marshaling procedure stops
+// and returns with the provided error.
+type Marshaler interface {
+ MarshalYAML() (interface{}, error)
+}
+
+// Unmarshal decodes the first document found within the in byte slice
+// and assigns decoded values into the out value.
+//
+// Maps and pointers (to a struct, string, int, etc) are accepted as out
+// values. If an internal pointer within a struct is not initialized,
+// the yaml package will initialize it if necessary for unmarshalling
+// the provided data. The out parameter must not be nil.
+//
+// The type of the decoded values should be compatible with the respective
+// values in out. If one or more values cannot be decoded due to a type
+// mismatches, decoding continues partially until the end of the YAML
+// content, and a *yaml.TypeError is returned with details for all
+// missed values.
+//
+// Struct fields are only unmarshalled if they are exported (have an
+// upper case first letter), and are unmarshalled using the field name
+// lowercased as the default key. Custom keys may be defined via the
+// "yaml" name in the field tag: the content preceding the first comma
+// is used as the key, and the following comma-separated options are
+// used to tweak the marshalling process (see Marshal).
+// Conflicting names result in a runtime error.
+//
+// For example:
+//
+// type T struct {
+// F int `yaml:"a,omitempty"`
+// B int
+// }
+// var t T
+// yaml.Unmarshal([]byte("a: 1\nb: 2"), &t)
+//
+// See the documentation of Marshal for the format of tags and a list of
+// supported tag options.
+//
+func Unmarshal(in []byte, out interface{}) (err error) {
+ return unmarshal(in, out, false)
+}
+
+// UnmarshalStrict is like Unmarshal except that any fields that are found
+// in the data that do not have corresponding struct members, or mapping
+// keys that are duplicates, will result in
+// an error.
+func UnmarshalStrict(in []byte, out interface{}) (err error) {
+ return unmarshal(in, out, true)
+}
+
+// A Decorder reads and decodes YAML values from an input stream.
+type Decoder struct {
+ strict bool
+ parser *parser
+}
+
+// NewDecoder returns a new decoder that reads from r.
+//
+// The decoder introduces its own buffering and may read
+// data from r beyond the YAML values requested.
+func NewDecoder(r io.Reader) *Decoder {
+ return &Decoder{
+ parser: newParserFromReader(r),
+ }
+}
+
+// SetStrict sets whether strict decoding behaviour is enabled when
+// decoding items in the data (see UnmarshalStrict). By default, decoding is not strict.
+func (dec *Decoder) SetStrict(strict bool) {
+ dec.strict = strict
+}
+
+// Decode reads the next YAML-encoded value from its input
+// and stores it in the value pointed to by v.
+//
+// See the documentation for Unmarshal for details about the
+// conversion of YAML into a Go value.
+func (dec *Decoder) Decode(v interface{}) (err error) {
+ d := newDecoder(dec.strict)
+ defer handleErr(&err)
+ node := dec.parser.parse()
+ if node == nil {
+ return io.EOF
+ }
+ out := reflect.ValueOf(v)
+ if out.Kind() == reflect.Ptr && !out.IsNil() {
+ out = out.Elem()
+ }
+ d.unmarshal(node, out)
+ if len(d.terrors) > 0 {
+ return &TypeError{d.terrors}
+ }
+ return nil
+}
+
+func unmarshal(in []byte, out interface{}, strict bool) (err error) {
+ defer handleErr(&err)
+ d := newDecoder(strict)
+ p := newParser(in)
+ defer p.destroy()
+ node := p.parse()
+ if node != nil {
+ v := reflect.ValueOf(out)
+ if v.Kind() == reflect.Ptr && !v.IsNil() {
+ v = v.Elem()
+ }
+ d.unmarshal(node, v)
+ }
+ if len(d.terrors) > 0 {
+ return &TypeError{d.terrors}
+ }
+ return nil
+}
+
+// Marshal serializes the value provided into a YAML document. The structure
+// of the generated document will reflect the structure of the value itself.
+// Maps and pointers (to struct, string, int, etc) are accepted as the in value.
+//
+// Struct fields are only marshalled if they are exported (have an upper case
+// first letter), and are marshalled using the field name lowercased as the
+// default key. Custom keys may be defined via the "yaml" name in the field
+// tag: the content preceding the first comma is used as the key, and the
+// following comma-separated options are used to tweak the marshalling process.
+// Conflicting names result in a runtime error.
+//
+// The field tag format accepted is:
+//
+// `(...) yaml:"[<key>][,<flag1>[,<flag2>]]" (...)`
+//
+// The following flags are currently supported:
+//
+// omitempty Only include the field if it's not set to the zero
+// value for the type or to empty slices or maps.
+// Zero valued structs will be omitted if all their public
+// fields are zero, unless they implement an IsZero
+// method (see the IsZeroer interface type), in which
+// case the field will be included if that method returns true.
+//
+// flow Marshal using a flow style (useful for structs,
+// sequences and maps).
+//
+// inline Inline the field, which must be a struct or a map,
+// causing all of its fields or keys to be processed as if
+// they were part of the outer struct. For maps, keys must
+// not conflict with the yaml keys of other struct fields.
+//
+// In addition, if the key is "-", the field is ignored.
+//
+// For example:
+//
+// type T struct {
+// F int `yaml:"a,omitempty"`
+// B int
+// }
+// yaml.Marshal(&T{B: 2}) // Returns "b: 2\n"
+// yaml.Marshal(&T{F: 1}} // Returns "a: 1\nb: 0\n"
+//
+func Marshal(in interface{}) (out []byte, err error) {
+ defer handleErr(&err)
+ e := newEncoder()
+ defer e.destroy()
+ e.marshalDoc("", reflect.ValueOf(in))
+ e.finish()
+ out = e.out
+ return
+}
+
+// An Encoder writes YAML values to an output stream.
+type Encoder struct {
+ encoder *encoder
+}
+
+// NewEncoder returns a new encoder that writes to w.
+// The Encoder should be closed after use to flush all data
+// to w.
+func NewEncoder(w io.Writer) *Encoder {
+ return &Encoder{
+ encoder: newEncoderWithWriter(w),
+ }
+}
+
+// Encode writes the YAML encoding of v to the stream.
+// If multiple items are encoded to the stream, the
+// second and subsequent document will be preceded
+// with a "---" document separator, but the first will not.
+//
+// See the documentation for Marshal for details about the conversion of Go
+// values to YAML.
+func (e *Encoder) Encode(v interface{}) (err error) {
+ defer handleErr(&err)
+ e.encoder.marshalDoc("", reflect.ValueOf(v))
+ return nil
+}
+
+// Close closes the encoder by writing any remaining data.
+// It does not write a stream terminating string "...".
+func (e *Encoder) Close() (err error) {
+ defer handleErr(&err)
+ e.encoder.finish()
+ return nil
+}
+
+func handleErr(err *error) {
+ if v := recover(); v != nil {
+ if e, ok := v.(yamlError); ok {
+ *err = e.err
+ } else {
+ panic(v)
+ }
+ }
+}
+
+type yamlError struct {
+ err error
+}
+
+func fail(err error) {
+ panic(yamlError{err})
+}
+
+func failf(format string, args ...interface{}) {
+ panic(yamlError{fmt.Errorf("yaml: "+format, args...)})
+}
+
+// A TypeError is returned by Unmarshal when one or more fields in
+// the YAML document cannot be properly decoded into the requested
+// types. When this error is returned, the value is still
+// unmarshaled partially.
+type TypeError struct {
+ Errors []string
+}
+
+func (e *TypeError) Error() string {
+ return fmt.Sprintf("yaml: unmarshal errors:\n %s", strings.Join(e.Errors, "\n "))
+}
+
+// --------------------------------------------------------------------------
+// Maintain a mapping of keys to structure field indexes
+
+// The code in this section was copied from mgo/bson.
+
+// structInfo holds details for the serialization of fields of
+// a given struct.
+type structInfo struct {
+ FieldsMap map[string]fieldInfo
+ FieldsList []fieldInfo
+
+ // InlineMap is the number of the field in the struct that
+ // contains an ,inline map, or -1 if there's none.
+ InlineMap int
+}
+
+type fieldInfo struct {
+ Key string
+ Num int
+ OmitEmpty bool
+ Flow bool
+ // Id holds the unique field identifier, so we can cheaply
+ // check for field duplicates without maintaining an extra map.
+ Id int
+
+ // Inline holds the field index if the field is part of an inlined struct.
+ Inline []int
+}
+
+var structMap = make(map[reflect.Type]*structInfo)
+var fieldMapMutex sync.RWMutex
+
+func getStructInfo(st reflect.Type) (*structInfo, error) {
+ fieldMapMutex.RLock()
+ sinfo, found := structMap[st]
+ fieldMapMutex.RUnlock()
+ if found {
+ return sinfo, nil
+ }
+
+ n := st.NumField()
+ fieldsMap := make(map[string]fieldInfo)
+ fieldsList := make([]fieldInfo, 0, n)
+ inlineMap := -1
+ for i := 0; i != n; i++ {
+ field := st.Field(i)
+ if field.PkgPath != "" && !field.Anonymous {
+ continue // Private field
+ }
+
+ info := fieldInfo{Num: i}
+
+ tag := field.Tag.Get("yaml")
+ if tag == "" && strings.Index(string(field.Tag), ":") < 0 {
+ tag = string(field.Tag)
+ }
+ if tag == "-" {
+ continue
+ }
+
+ inline := false
+ fields := strings.Split(tag, ",")
+ if len(fields) > 1 {
+ for _, flag := range fields[1:] {
+ switch flag {
+ case "omitempty":
+ info.OmitEmpty = true
+ case "flow":
+ info.Flow = true
+ case "inline":
+ inline = true
+ default:
+ return nil, errors.New(fmt.Sprintf("Unsupported flag %q in tag %q of type %s", flag, tag, st))
+ }
+ }
+ tag = fields[0]
+ }
+
+ if inline {
+ switch field.Type.Kind() {
+ case reflect.Map:
+ if inlineMap >= 0 {
+ return nil, errors.New("Multiple ,inline maps in struct " + st.String())
+ }
+ if field.Type.Key() != reflect.TypeOf("") {
+ return nil, errors.New("Option ,inline needs a map with string keys in struct " + st.String())
+ }
+ inlineMap = info.Num
+ case reflect.Struct:
+ sinfo, err := getStructInfo(field.Type)
+ if err != nil {
+ return nil, err
+ }
+ for _, finfo := range sinfo.FieldsList {
+ if _, found := fieldsMap[finfo.Key]; found {
+ msg := "Duplicated key '" + finfo.Key + "' in struct " + st.String()
+ return nil, errors.New(msg)
+ }
+ if finfo.Inline == nil {
+ finfo.Inline = []int{i, finfo.Num}
+ } else {
+ finfo.Inline = append([]int{i}, finfo.Inline...)
+ }
+ finfo.Id = len(fieldsList)
+ fieldsMap[finfo.Key] = finfo
+ fieldsList = append(fieldsList, finfo)
+ }
+ default:
+ //return nil, errors.New("Option ,inline needs a struct value or map field")
+ return nil, errors.New("Option ,inline needs a struct value field")
+ }
+ continue
+ }
+
+ if tag != "" {
+ info.Key = tag
+ } else {
+ info.Key = strings.ToLower(field.Name)
+ }
+
+ if _, found = fieldsMap[info.Key]; found {
+ msg := "Duplicated key '" + info.Key + "' in struct " + st.String()
+ return nil, errors.New(msg)
+ }
+
+ info.Id = len(fieldsList)
+ fieldsList = append(fieldsList, info)
+ fieldsMap[info.Key] = info
+ }
+
+ sinfo = &structInfo{
+ FieldsMap: fieldsMap,
+ FieldsList: fieldsList,
+ InlineMap: inlineMap,
+ }
+
+ fieldMapMutex.Lock()
+ structMap[st] = sinfo
+ fieldMapMutex.Unlock()
+ return sinfo, nil
+}
+
+// IsZeroer is used to check whether an object is zero to
+// determine whether it should be omitted when marshaling
+// with the omitempty flag. One notable implementation
+// is time.Time.
+type IsZeroer interface {
+ IsZero() bool
+}
+
+func isZero(v reflect.Value) bool {
+ kind := v.Kind()
+ if z, ok := v.Interface().(IsZeroer); ok {
+ if (kind == reflect.Ptr || kind == reflect.Interface) && v.IsNil() {
+ return true
+ }
+ return z.IsZero()
+ }
+ switch kind {
+ case reflect.String:
+ return len(v.String()) == 0
+ case reflect.Interface, reflect.Ptr:
+ return v.IsNil()
+ case reflect.Slice:
+ return v.Len() == 0
+ case reflect.Map:
+ return v.Len() == 0
+ case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+ return v.Int() == 0
+ case reflect.Float32, reflect.Float64:
+ return v.Float() == 0
+ case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
+ return v.Uint() == 0
+ case reflect.Bool:
+ return !v.Bool()
+ case reflect.Struct:
+ vt := v.Type()
+ for i := v.NumField() - 1; i >= 0; i-- {
+ if vt.Field(i).PkgPath != "" {
+ continue // Private field
+ }
+ if !isZero(v.Field(i)) {
+ return false
+ }
+ }
+ return true
+ }
+ return false
+}
diff --git a/vendor/gopkg.in/yaml.v2/yamlh.go b/vendor/gopkg.in/yaml.v2/yamlh.go
new file mode 100644
index 0000000..e25cee5
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/yamlh.go
@@ -0,0 +1,738 @@
+package yaml
+
+import (
+ "fmt"
+ "io"
+)
+
+// The version directive data.
+type yaml_version_directive_t struct {
+ major int8 // The major version number.
+ minor int8 // The minor version number.
+}
+
+// The tag directive data.
+type yaml_tag_directive_t struct {
+ handle []byte // The tag handle.
+ prefix []byte // The tag prefix.
+}
+
+type yaml_encoding_t int
+
+// The stream encoding.
+const (
+ // Let the parser choose the encoding.
+ yaml_ANY_ENCODING yaml_encoding_t = iota
+
+ yaml_UTF8_ENCODING // The default UTF-8 encoding.
+ yaml_UTF16LE_ENCODING // The UTF-16-LE encoding with BOM.
+ yaml_UTF16BE_ENCODING // The UTF-16-BE encoding with BOM.
+)
+
+type yaml_break_t int
+
+// Line break types.
+const (
+ // Let the parser choose the break type.
+ yaml_ANY_BREAK yaml_break_t = iota
+
+ yaml_CR_BREAK // Use CR for line breaks (Mac style).
+ yaml_LN_BREAK // Use LN for line breaks (Unix style).
+ yaml_CRLN_BREAK // Use CR LN for line breaks (DOS style).
+)
+
+type yaml_error_type_t int
+
+// Many bad things could happen with the parser and emitter.
+const (
+ // No error is produced.
+ yaml_NO_ERROR yaml_error_type_t = iota
+
+ yaml_MEMORY_ERROR // Cannot allocate or reallocate a block of memory.
+ yaml_READER_ERROR // Cannot read or decode the input stream.
+ yaml_SCANNER_ERROR // Cannot scan the input stream.
+ yaml_PARSER_ERROR // Cannot parse the input stream.
+ yaml_COMPOSER_ERROR // Cannot compose a YAML document.
+ yaml_WRITER_ERROR // Cannot write to the output stream.
+ yaml_EMITTER_ERROR // Cannot emit a YAML stream.
+)
+
+// The pointer position.
+type yaml_mark_t struct {
+ index int // The position index.
+ line int // The position line.
+ column int // The position column.
+}
+
+// Node Styles
+
+type yaml_style_t int8
+
+type yaml_scalar_style_t yaml_style_t
+
+// Scalar styles.
+const (
+ // Let the emitter choose the style.
+ yaml_ANY_SCALAR_STYLE yaml_scalar_style_t = iota
+
+ yaml_PLAIN_SCALAR_STYLE // The plain scalar style.
+ yaml_SINGLE_QUOTED_SCALAR_STYLE // The single-quoted scalar style.
+ yaml_DOUBLE_QUOTED_SCALAR_STYLE // The double-quoted scalar style.
+ yaml_LITERAL_SCALAR_STYLE // The literal scalar style.
+ yaml_FOLDED_SCALAR_STYLE // The folded scalar style.
+)
+
+type yaml_sequence_style_t yaml_style_t
+
+// Sequence styles.
+const (
+ // Let the emitter choose the style.
+ yaml_ANY_SEQUENCE_STYLE yaml_sequence_style_t = iota
+
+ yaml_BLOCK_SEQUENCE_STYLE // The block sequence style.
+ yaml_FLOW_SEQUENCE_STYLE // The flow sequence style.
+)
+
+type yaml_mapping_style_t yaml_style_t
+
+// Mapping styles.
+const (
+ // Let the emitter choose the style.
+ yaml_ANY_MAPPING_STYLE yaml_mapping_style_t = iota
+
+ yaml_BLOCK_MAPPING_STYLE // The block mapping style.
+ yaml_FLOW_MAPPING_STYLE // The flow mapping style.
+)
+
+// Tokens
+
+type yaml_token_type_t int
+
+// Token types.
+const (
+ // An empty token.
+ yaml_NO_TOKEN yaml_token_type_t = iota
+
+ yaml_STREAM_START_TOKEN // A STREAM-START token.
+ yaml_STREAM_END_TOKEN // A STREAM-END token.
+
+ yaml_VERSION_DIRECTIVE_TOKEN // A VERSION-DIRECTIVE token.
+ yaml_TAG_DIRECTIVE_TOKEN // A TAG-DIRECTIVE token.
+ yaml_DOCUMENT_START_TOKEN // A DOCUMENT-START token.
+ yaml_DOCUMENT_END_TOKEN // A DOCUMENT-END token.
+
+ yaml_BLOCK_SEQUENCE_START_TOKEN // A BLOCK-SEQUENCE-START token.
+ yaml_BLOCK_MAPPING_START_TOKEN // A BLOCK-SEQUENCE-END token.
+ yaml_BLOCK_END_TOKEN // A BLOCK-END token.
+
+ yaml_FLOW_SEQUENCE_START_TOKEN // A FLOW-SEQUENCE-START token.
+ yaml_FLOW_SEQUENCE_END_TOKEN // A FLOW-SEQUENCE-END token.
+ yaml_FLOW_MAPPING_START_TOKEN // A FLOW-MAPPING-START token.
+ yaml_FLOW_MAPPING_END_TOKEN // A FLOW-MAPPING-END token.
+
+ yaml_BLOCK_ENTRY_TOKEN // A BLOCK-ENTRY token.
+ yaml_FLOW_ENTRY_TOKEN // A FLOW-ENTRY token.
+ yaml_KEY_TOKEN // A KEY token.
+ yaml_VALUE_TOKEN // A VALUE token.
+
+ yaml_ALIAS_TOKEN // An ALIAS token.
+ yaml_ANCHOR_TOKEN // An ANCHOR token.
+ yaml_TAG_TOKEN // A TAG token.
+ yaml_SCALAR_TOKEN // A SCALAR token.
+)
+
+func (tt yaml_token_type_t) String() string {
+ switch tt {
+ case yaml_NO_TOKEN:
+ return "yaml_NO_TOKEN"
+ case yaml_STREAM_START_TOKEN:
+ return "yaml_STREAM_START_TOKEN"
+ case yaml_STREAM_END_TOKEN:
+ return "yaml_STREAM_END_TOKEN"
+ case yaml_VERSION_DIRECTIVE_TOKEN:
+ return "yaml_VERSION_DIRECTIVE_TOKEN"
+ case yaml_TAG_DIRECTIVE_TOKEN:
+ return "yaml_TAG_DIRECTIVE_TOKEN"
+ case yaml_DOCUMENT_START_TOKEN:
+ return "yaml_DOCUMENT_START_TOKEN"
+ case yaml_DOCUMENT_END_TOKEN:
+ return "yaml_DOCUMENT_END_TOKEN"
+ case yaml_BLOCK_SEQUENCE_START_TOKEN:
+ return "yaml_BLOCK_SEQUENCE_START_TOKEN"
+ case yaml_BLOCK_MAPPING_START_TOKEN:
+ return "yaml_BLOCK_MAPPING_START_TOKEN"
+ case yaml_BLOCK_END_TOKEN:
+ return "yaml_BLOCK_END_TOKEN"
+ case yaml_FLOW_SEQUENCE_START_TOKEN:
+ return "yaml_FLOW_SEQUENCE_START_TOKEN"
+ case yaml_FLOW_SEQUENCE_END_TOKEN:
+ return "yaml_FLOW_SEQUENCE_END_TOKEN"
+ case yaml_FLOW_MAPPING_START_TOKEN:
+ return "yaml_FLOW_MAPPING_START_TOKEN"
+ case yaml_FLOW_MAPPING_END_TOKEN:
+ return "yaml_FLOW_MAPPING_END_TOKEN"
+ case yaml_BLOCK_ENTRY_TOKEN:
+ return "yaml_BLOCK_ENTRY_TOKEN"
+ case yaml_FLOW_ENTRY_TOKEN:
+ return "yaml_FLOW_ENTRY_TOKEN"
+ case yaml_KEY_TOKEN:
+ return "yaml_KEY_TOKEN"
+ case yaml_VALUE_TOKEN:
+ return "yaml_VALUE_TOKEN"
+ case yaml_ALIAS_TOKEN:
+ return "yaml_ALIAS_TOKEN"
+ case yaml_ANCHOR_TOKEN:
+ return "yaml_ANCHOR_TOKEN"
+ case yaml_TAG_TOKEN:
+ return "yaml_TAG_TOKEN"
+ case yaml_SCALAR_TOKEN:
+ return "yaml_SCALAR_TOKEN"
+ }
+ return "<unknown token>"
+}
+
+// The token structure.
+type yaml_token_t struct {
+ // The token type.
+ typ yaml_token_type_t
+
+ // The start/end of the token.
+ start_mark, end_mark yaml_mark_t
+
+ // The stream encoding (for yaml_STREAM_START_TOKEN).
+ encoding yaml_encoding_t
+
+ // The alias/anchor/scalar value or tag/tag directive handle
+ // (for yaml_ALIAS_TOKEN, yaml_ANCHOR_TOKEN, yaml_SCALAR_TOKEN, yaml_TAG_TOKEN, yaml_TAG_DIRECTIVE_TOKEN).
+ value []byte
+
+ // The tag suffix (for yaml_TAG_TOKEN).
+ suffix []byte
+
+ // The tag directive prefix (for yaml_TAG_DIRECTIVE_TOKEN).
+ prefix []byte
+
+ // The scalar style (for yaml_SCALAR_TOKEN).
+ style yaml_scalar_style_t
+
+ // The version directive major/minor (for yaml_VERSION_DIRECTIVE_TOKEN).
+ major, minor int8
+}
+
+// Events
+
+type yaml_event_type_t int8
+
+// Event types.
+const (
+ // An empty event.
+ yaml_NO_EVENT yaml_event_type_t = iota
+
+ yaml_STREAM_START_EVENT // A STREAM-START event.
+ yaml_STREAM_END_EVENT // A STREAM-END event.
+ yaml_DOCUMENT_START_EVENT // A DOCUMENT-START event.
+ yaml_DOCUMENT_END_EVENT // A DOCUMENT-END event.
+ yaml_ALIAS_EVENT // An ALIAS event.
+ yaml_SCALAR_EVENT // A SCALAR event.
+ yaml_SEQUENCE_START_EVENT // A SEQUENCE-START event.
+ yaml_SEQUENCE_END_EVENT // A SEQUENCE-END event.
+ yaml_MAPPING_START_EVENT // A MAPPING-START event.
+ yaml_MAPPING_END_EVENT // A MAPPING-END event.
+)
+
+var eventStrings = []string{
+ yaml_NO_EVENT: "none",
+ yaml_STREAM_START_EVENT: "stream start",
+ yaml_STREAM_END_EVENT: "stream end",
+ yaml_DOCUMENT_START_EVENT: "document start",
+ yaml_DOCUMENT_END_EVENT: "document end",
+ yaml_ALIAS_EVENT: "alias",
+ yaml_SCALAR_EVENT: "scalar",
+ yaml_SEQUENCE_START_EVENT: "sequence start",
+ yaml_SEQUENCE_END_EVENT: "sequence end",
+ yaml_MAPPING_START_EVENT: "mapping start",
+ yaml_MAPPING_END_EVENT: "mapping end",
+}
+
+func (e yaml_event_type_t) String() string {
+ if e < 0 || int(e) >= len(eventStrings) {
+ return fmt.Sprintf("unknown event %d", e)
+ }
+ return eventStrings[e]
+}
+
+// The event structure.
+type yaml_event_t struct {
+
+ // The event type.
+ typ yaml_event_type_t
+
+ // The start and end of the event.
+ start_mark, end_mark yaml_mark_t
+
+ // The document encoding (for yaml_STREAM_START_EVENT).
+ encoding yaml_encoding_t
+
+ // The version directive (for yaml_DOCUMENT_START_EVENT).
+ version_directive *yaml_version_directive_t
+
+ // The list of tag directives (for yaml_DOCUMENT_START_EVENT).
+ tag_directives []yaml_tag_directive_t
+
+ // The anchor (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT, yaml_ALIAS_EVENT).
+ anchor []byte
+
+ // The tag (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT).
+ tag []byte
+
+ // The scalar value (for yaml_SCALAR_EVENT).
+ value []byte
+
+ // Is the document start/end indicator implicit, or the tag optional?
+ // (for yaml_DOCUMENT_START_EVENT, yaml_DOCUMENT_END_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT, yaml_SCALAR_EVENT).
+ implicit bool
+
+ // Is the tag optional for any non-plain style? (for yaml_SCALAR_EVENT).
+ quoted_implicit bool
+
+ // The style (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT).
+ style yaml_style_t
+}
+
+func (e *yaml_event_t) scalar_style() yaml_scalar_style_t { return yaml_scalar_style_t(e.style) }
+func (e *yaml_event_t) sequence_style() yaml_sequence_style_t { return yaml_sequence_style_t(e.style) }
+func (e *yaml_event_t) mapping_style() yaml_mapping_style_t { return yaml_mapping_style_t(e.style) }
+
+// Nodes
+
+const (
+ yaml_NULL_TAG = "tag:yaml.org,2002:null" // The tag !!null with the only possible value: null.
+ yaml_BOOL_TAG = "tag:yaml.org,2002:bool" // The tag !!bool with the values: true and false.
+ yaml_STR_TAG = "tag:yaml.org,2002:str" // The tag !!str for string values.
+ yaml_INT_TAG = "tag:yaml.org,2002:int" // The tag !!int for integer values.
+ yaml_FLOAT_TAG = "tag:yaml.org,2002:float" // The tag !!float for float values.
+ yaml_TIMESTAMP_TAG = "tag:yaml.org,2002:timestamp" // The tag !!timestamp for date and time values.
+
+ yaml_SEQ_TAG = "tag:yaml.org,2002:seq" // The tag !!seq is used to denote sequences.
+ yaml_MAP_TAG = "tag:yaml.org,2002:map" // The tag !!map is used to denote mapping.
+
+ // Not in original libyaml.
+ yaml_BINARY_TAG = "tag:yaml.org,2002:binary"
+ yaml_MERGE_TAG = "tag:yaml.org,2002:merge"
+
+ yaml_DEFAULT_SCALAR_TAG = yaml_STR_TAG // The default scalar tag is !!str.
+ yaml_DEFAULT_SEQUENCE_TAG = yaml_SEQ_TAG // The default sequence tag is !!seq.
+ yaml_DEFAULT_MAPPING_TAG = yaml_MAP_TAG // The default mapping tag is !!map.
+)
+
+type yaml_node_type_t int
+
+// Node types.
+const (
+ // An empty node.
+ yaml_NO_NODE yaml_node_type_t = iota
+
+ yaml_SCALAR_NODE // A scalar node.
+ yaml_SEQUENCE_NODE // A sequence node.
+ yaml_MAPPING_NODE // A mapping node.
+)
+
+// An element of a sequence node.
+type yaml_node_item_t int
+
+// An element of a mapping node.
+type yaml_node_pair_t struct {
+ key int // The key of the element.
+ value int // The value of the element.
+}
+
+// The node structure.
+type yaml_node_t struct {
+ typ yaml_node_type_t // The node type.
+ tag []byte // The node tag.
+
+ // The node data.
+
+ // The scalar parameters (for yaml_SCALAR_NODE).
+ scalar struct {
+ value []byte // The scalar value.
+ length int // The length of the scalar value.
+ style yaml_scalar_style_t // The scalar style.
+ }
+
+ // The sequence parameters (for YAML_SEQUENCE_NODE).
+ sequence struct {
+ items_data []yaml_node_item_t // The stack of sequence items.
+ style yaml_sequence_style_t // The sequence style.
+ }
+
+ // The mapping parameters (for yaml_MAPPING_NODE).
+ mapping struct {
+ pairs_data []yaml_node_pair_t // The stack of mapping pairs (key, value).
+ pairs_start *yaml_node_pair_t // The beginning of the stack.
+ pairs_end *yaml_node_pair_t // The end of the stack.
+ pairs_top *yaml_node_pair_t // The top of the stack.
+ style yaml_mapping_style_t // The mapping style.
+ }
+
+ start_mark yaml_mark_t // The beginning of the node.
+ end_mark yaml_mark_t // The end of the node.
+
+}
+
+// The document structure.
+type yaml_document_t struct {
+
+ // The document nodes.
+ nodes []yaml_node_t
+
+ // The version directive.
+ version_directive *yaml_version_directive_t
+
+ // The list of tag directives.
+ tag_directives_data []yaml_tag_directive_t
+ tag_directives_start int // The beginning of the tag directives list.
+ tag_directives_end int // The end of the tag directives list.
+
+ start_implicit int // Is the document start indicator implicit?
+ end_implicit int // Is the document end indicator implicit?
+
+ // The start/end of the document.
+ start_mark, end_mark yaml_mark_t
+}
+
+// The prototype of a read handler.
+//
+// The read handler is called when the parser needs to read more bytes from the
+// source. The handler should write not more than size bytes to the buffer.
+// The number of written bytes should be set to the size_read variable.
+//
+// [in,out] data A pointer to an application data specified by
+// yaml_parser_set_input().
+// [out] buffer The buffer to write the data from the source.
+// [in] size The size of the buffer.
+// [out] size_read The actual number of bytes read from the source.
+//
+// On success, the handler should return 1. If the handler failed,
+// the returned value should be 0. On EOF, the handler should set the
+// size_read to 0 and return 1.
+type yaml_read_handler_t func(parser *yaml_parser_t, buffer []byte) (n int, err error)
+
+// This structure holds information about a potential simple key.
+type yaml_simple_key_t struct {
+ possible bool // Is a simple key possible?
+ required bool // Is a simple key required?
+ token_number int // The number of the token.
+ mark yaml_mark_t // The position mark.
+}
+
+// The states of the parser.
+type yaml_parser_state_t int
+
+const (
+ yaml_PARSE_STREAM_START_STATE yaml_parser_state_t = iota
+
+ yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE // Expect the beginning of an implicit document.
+ yaml_PARSE_DOCUMENT_START_STATE // Expect DOCUMENT-START.
+ yaml_PARSE_DOCUMENT_CONTENT_STATE // Expect the content of a document.
+ yaml_PARSE_DOCUMENT_END_STATE // Expect DOCUMENT-END.
+ yaml_PARSE_BLOCK_NODE_STATE // Expect a block node.
+ yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE // Expect a block node or indentless sequence.
+ yaml_PARSE_FLOW_NODE_STATE // Expect a flow node.
+ yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE // Expect the first entry of a block sequence.
+ yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE // Expect an entry of a block sequence.
+ yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE // Expect an entry of an indentless sequence.
+ yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE // Expect the first key of a block mapping.
+ yaml_PARSE_BLOCK_MAPPING_KEY_STATE // Expect a block mapping key.
+ yaml_PARSE_BLOCK_MAPPING_VALUE_STATE // Expect a block mapping value.
+ yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE // Expect the first entry of a flow sequence.
+ yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE // Expect an entry of a flow sequence.
+ yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE // Expect a key of an ordered mapping.
+ yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE // Expect a value of an ordered mapping.
+ yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE // Expect the and of an ordered mapping entry.
+ yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE // Expect the first key of a flow mapping.
+ yaml_PARSE_FLOW_MAPPING_KEY_STATE // Expect a key of a flow mapping.
+ yaml_PARSE_FLOW_MAPPING_VALUE_STATE // Expect a value of a flow mapping.
+ yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE // Expect an empty value of a flow mapping.
+ yaml_PARSE_END_STATE // Expect nothing.
+)
+
+func (ps yaml_parser_state_t) String() string {
+ switch ps {
+ case yaml_PARSE_STREAM_START_STATE:
+ return "yaml_PARSE_STREAM_START_STATE"
+ case yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE:
+ return "yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE"
+ case yaml_PARSE_DOCUMENT_START_STATE:
+ return "yaml_PARSE_DOCUMENT_START_STATE"
+ case yaml_PARSE_DOCUMENT_CONTENT_STATE:
+ return "yaml_PARSE_DOCUMENT_CONTENT_STATE"
+ case yaml_PARSE_DOCUMENT_END_STATE:
+ return "yaml_PARSE_DOCUMENT_END_STATE"
+ case yaml_PARSE_BLOCK_NODE_STATE:
+ return "yaml_PARSE_BLOCK_NODE_STATE"
+ case yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE:
+ return "yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE"
+ case yaml_PARSE_FLOW_NODE_STATE:
+ return "yaml_PARSE_FLOW_NODE_STATE"
+ case yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE:
+ return "yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE"
+ case yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE:
+ return "yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE"
+ case yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE:
+ return "yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE"
+ case yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE:
+ return "yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE"
+ case yaml_PARSE_BLOCK_MAPPING_KEY_STATE:
+ return "yaml_PARSE_BLOCK_MAPPING_KEY_STATE"
+ case yaml_PARSE_BLOCK_MAPPING_VALUE_STATE:
+ return "yaml_PARSE_BLOCK_MAPPING_VALUE_STATE"
+ case yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE:
+ return "yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE"
+ case yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE:
+ return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE"
+ case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE:
+ return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE"
+ case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE:
+ return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE"
+ case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE:
+ return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE"
+ case yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE:
+ return "yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE"
+ case yaml_PARSE_FLOW_MAPPING_KEY_STATE:
+ return "yaml_PARSE_FLOW_MAPPING_KEY_STATE"
+ case yaml_PARSE_FLOW_MAPPING_VALUE_STATE:
+ return "yaml_PARSE_FLOW_MAPPING_VALUE_STATE"
+ case yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE:
+ return "yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE"
+ case yaml_PARSE_END_STATE:
+ return "yaml_PARSE_END_STATE"
+ }
+ return "<unknown parser state>"
+}
+
+// This structure holds aliases data.
+type yaml_alias_data_t struct {
+ anchor []byte // The anchor.
+ index int // The node id.
+ mark yaml_mark_t // The anchor mark.
+}
+
+// The parser structure.
+//
+// All members are internal. Manage the structure using the
+// yaml_parser_ family of functions.
+type yaml_parser_t struct {
+
+ // Error handling
+
+ error yaml_error_type_t // Error type.
+
+ problem string // Error description.
+
+ // The byte about which the problem occurred.
+ problem_offset int
+ problem_value int
+ problem_mark yaml_mark_t
+
+ // The error context.
+ context string
+ context_mark yaml_mark_t
+
+ // Reader stuff
+
+ read_handler yaml_read_handler_t // Read handler.
+
+ input_reader io.Reader // File input data.
+ input []byte // String input data.
+ input_pos int
+
+ eof bool // EOF flag
+
+ buffer []byte // The working buffer.
+ buffer_pos int // The current position of the buffer.
+
+ unread int // The number of unread characters in the buffer.
+
+ raw_buffer []byte // The raw buffer.
+ raw_buffer_pos int // The current position of the buffer.
+
+ encoding yaml_encoding_t // The input encoding.
+
+ offset int // The offset of the current position (in bytes).
+ mark yaml_mark_t // The mark of the current position.
+
+ // Scanner stuff
+
+ stream_start_produced bool // Have we started to scan the input stream?
+ stream_end_produced bool // Have we reached the end of the input stream?
+
+ flow_level int // The number of unclosed '[' and '{' indicators.
+
+ tokens []yaml_token_t // The tokens queue.
+ tokens_head int // The head of the tokens queue.
+ tokens_parsed int // The number of tokens fetched from the queue.
+ token_available bool // Does the tokens queue contain a token ready for dequeueing.
+
+ indent int // The current indentation level.
+ indents []int // The indentation levels stack.
+
+ simple_key_allowed bool // May a simple key occur at the current position?
+ simple_keys []yaml_simple_key_t // The stack of simple keys.
+
+ // Parser stuff
+
+ state yaml_parser_state_t // The current parser state.
+ states []yaml_parser_state_t // The parser states stack.
+ marks []yaml_mark_t // The stack of marks.
+ tag_directives []yaml_tag_directive_t // The list of TAG directives.
+
+ // Dumper stuff
+
+ aliases []yaml_alias_data_t // The alias data.
+
+ document *yaml_document_t // The currently parsed document.
+}
+
+// Emitter Definitions
+
+// The prototype of a write handler.
+//
+// The write handler is called when the emitter needs to flush the accumulated
+// characters to the output. The handler should write @a size bytes of the
+// @a buffer to the output.
+//
+// @param[in,out] data A pointer to an application data specified by
+// yaml_emitter_set_output().
+// @param[in] buffer The buffer with bytes to be written.
+// @param[in] size The size of the buffer.
+//
+// @returns On success, the handler should return @c 1. If the handler failed,
+// the returned value should be @c 0.
+//
+type yaml_write_handler_t func(emitter *yaml_emitter_t, buffer []byte) error
+
+type yaml_emitter_state_t int
+
+// The emitter states.
+const (
+ // Expect STREAM-START.
+ yaml_EMIT_STREAM_START_STATE yaml_emitter_state_t = iota
+
+ yaml_EMIT_FIRST_DOCUMENT_START_STATE // Expect the first DOCUMENT-START or STREAM-END.
+ yaml_EMIT_DOCUMENT_START_STATE // Expect DOCUMENT-START or STREAM-END.
+ yaml_EMIT_DOCUMENT_CONTENT_STATE // Expect the content of a document.
+ yaml_EMIT_DOCUMENT_END_STATE // Expect DOCUMENT-END.
+ yaml_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE // Expect the first item of a flow sequence.
+ yaml_EMIT_FLOW_SEQUENCE_ITEM_STATE // Expect an item of a flow sequence.
+ yaml_EMIT_FLOW_MAPPING_FIRST_KEY_STATE // Expect the first key of a flow mapping.
+ yaml_EMIT_FLOW_MAPPING_KEY_STATE // Expect a key of a flow mapping.
+ yaml_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE // Expect a value for a simple key of a flow mapping.
+ yaml_EMIT_FLOW_MAPPING_VALUE_STATE // Expect a value of a flow mapping.
+ yaml_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE // Expect the first item of a block sequence.
+ yaml_EMIT_BLOCK_SEQUENCE_ITEM_STATE // Expect an item of a block sequence.
+ yaml_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE // Expect the first key of a block mapping.
+ yaml_EMIT_BLOCK_MAPPING_KEY_STATE // Expect the key of a block mapping.
+ yaml_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE // Expect a value for a simple key of a block mapping.
+ yaml_EMIT_BLOCK_MAPPING_VALUE_STATE // Expect a value of a block mapping.
+ yaml_EMIT_END_STATE // Expect nothing.
+)
+
+// The emitter structure.
+//
+// All members are internal. Manage the structure using the @c yaml_emitter_
+// family of functions.
+type yaml_emitter_t struct {
+
+ // Error handling
+
+ error yaml_error_type_t // Error type.
+ problem string // Error description.
+
+ // Writer stuff
+
+ write_handler yaml_write_handler_t // Write handler.
+
+ output_buffer *[]byte // String output data.
+ output_writer io.Writer // File output data.
+
+ buffer []byte // The working buffer.
+ buffer_pos int // The current position of the buffer.
+
+ raw_buffer []byte // The raw buffer.
+ raw_buffer_pos int // The current position of the buffer.
+
+ encoding yaml_encoding_t // The stream encoding.
+
+ // Emitter stuff
+
+ canonical bool // If the output is in the canonical style?
+ best_indent int // The number of indentation spaces.
+ best_width int // The preferred width of the output lines.
+ unicode bool // Allow unescaped non-ASCII characters?
+ line_break yaml_break_t // The preferred line break.
+
+ state yaml_emitter_state_t // The current emitter state.
+ states []yaml_emitter_state_t // The stack of states.
+
+ events []yaml_event_t // The event queue.
+ events_head int // The head of the event queue.
+
+ indents []int // The stack of indentation levels.
+
+ tag_directives []yaml_tag_directive_t // The list of tag directives.
+
+ indent int // The current indentation level.
+
+ flow_level int // The current flow level.
+
+ root_context bool // Is it the document root context?
+ sequence_context bool // Is it a sequence context?
+ mapping_context bool // Is it a mapping context?
+ simple_key_context bool // Is it a simple mapping key context?
+
+ line int // The current line.
+ column int // The current column.
+ whitespace bool // If the last character was a whitespace?
+ indention bool // If the last character was an indentation character (' ', '-', '?', ':')?
+ open_ended bool // If an explicit document end is required?
+
+ // Anchor analysis.
+ anchor_data struct {
+ anchor []byte // The anchor value.
+ alias bool // Is it an alias?
+ }
+
+ // Tag analysis.
+ tag_data struct {
+ handle []byte // The tag handle.
+ suffix []byte // The tag suffix.
+ }
+
+ // Scalar analysis.
+ scalar_data struct {
+ value []byte // The scalar value.
+ multiline bool // Does the scalar contain line breaks?
+ flow_plain_allowed bool // Can the scalar be expessed in the flow plain style?
+ block_plain_allowed bool // Can the scalar be expressed in the block plain style?
+ single_quoted_allowed bool // Can the scalar be expressed in the single quoted style?
+ block_allowed bool // Can the scalar be expressed in the literal or folded styles?
+ style yaml_scalar_style_t // The output style.
+ }
+
+ // Dumper stuff
+
+ opened bool // If the stream was already opened?
+ closed bool // If the stream was already closed?
+
+ // The information associated with the document nodes.
+ anchors *struct {
+ references int // The number of references.
+ anchor int // The anchor id.
+ serialized bool // If the node has been emitted?
+ }
+
+ last_anchor_id int // The last assigned anchor id.
+
+ document *yaml_document_t // The currently emitted document.
+}
diff --git a/vendor/gopkg.in/yaml.v2/yamlprivateh.go b/vendor/gopkg.in/yaml.v2/yamlprivateh.go
new file mode 100644
index 0000000..8110ce3
--- /dev/null
+++ b/vendor/gopkg.in/yaml.v2/yamlprivateh.go
@@ -0,0 +1,173 @@
+package yaml
+
+const (
+ // The size of the input raw buffer.
+ input_raw_buffer_size = 512
+
+ // The size of the input buffer.
+ // It should be possible to decode the whole raw buffer.
+ input_buffer_size = input_raw_buffer_size * 3
+
+ // The size of the output buffer.
+ output_buffer_size = 128
+
+ // The size of the output raw buffer.
+ // It should be possible to encode the whole output buffer.
+ output_raw_buffer_size = (output_buffer_size*2 + 2)
+
+ // The size of other stacks and queues.
+ initial_stack_size = 16
+ initial_queue_size = 16
+ initial_string_size = 16
+)
+
+// Check if the character at the specified position is an alphabetical
+// character, a digit, '_', or '-'.
+func is_alpha(b []byte, i int) bool {
+ return b[i] >= '0' && b[i] <= '9' || b[i] >= 'A' && b[i] <= 'Z' || b[i] >= 'a' && b[i] <= 'z' || b[i] == '_' || b[i] == '-'
+}
+
+// Check if the character at the specified position is a digit.
+func is_digit(b []byte, i int) bool {
+ return b[i] >= '0' && b[i] <= '9'
+}
+
+// Get the value of a digit.
+func as_digit(b []byte, i int) int {
+ return int(b[i]) - '0'
+}
+
+// Check if the character at the specified position is a hex-digit.
+func is_hex(b []byte, i int) bool {
+ return b[i] >= '0' && b[i] <= '9' || b[i] >= 'A' && b[i] <= 'F' || b[i] >= 'a' && b[i] <= 'f'
+}
+
+// Get the value of a hex-digit.
+func as_hex(b []byte, i int) int {
+ bi := b[i]
+ if bi >= 'A' && bi <= 'F' {
+ return int(bi) - 'A' + 10
+ }
+ if bi >= 'a' && bi <= 'f' {
+ return int(bi) - 'a' + 10
+ }
+ return int(bi) - '0'
+}
+
+// Check if the character is ASCII.
+func is_ascii(b []byte, i int) bool {
+ return b[i] <= 0x7F
+}
+
+// Check if the character at the start of the buffer can be printed unescaped.
+func is_printable(b []byte, i int) bool {
+ return ((b[i] == 0x0A) || // . == #x0A
+ (b[i] >= 0x20 && b[i] <= 0x7E) || // #x20 <= . <= #x7E
+ (b[i] == 0xC2 && b[i+1] >= 0xA0) || // #0xA0 <= . <= #xD7FF
+ (b[i] > 0xC2 && b[i] < 0xED) ||
+ (b[i] == 0xED && b[i+1] < 0xA0) ||
+ (b[i] == 0xEE) ||
+ (b[i] == 0xEF && // #xE000 <= . <= #xFFFD
+ !(b[i+1] == 0xBB && b[i+2] == 0xBF) && // && . != #xFEFF
+ !(b[i+1] == 0xBF && (b[i+2] == 0xBE || b[i+2] == 0xBF))))
+}
+
+// Check if the character at the specified position is NUL.
+func is_z(b []byte, i int) bool {
+ return b[i] == 0x00
+}
+
+// Check if the beginning of the buffer is a BOM.
+func is_bom(b []byte, i int) bool {
+ return b[0] == 0xEF && b[1] == 0xBB && b[2] == 0xBF
+}
+
+// Check if the character at the specified position is space.
+func is_space(b []byte, i int) bool {
+ return b[i] == ' '
+}
+
+// Check if the character at the specified position is tab.
+func is_tab(b []byte, i int) bool {
+ return b[i] == '\t'
+}
+
+// Check if the character at the specified position is blank (space or tab).
+func is_blank(b []byte, i int) bool {
+ //return is_space(b, i) || is_tab(b, i)
+ return b[i] == ' ' || b[i] == '\t'
+}
+
+// Check if the character at the specified position is a line break.
+func is_break(b []byte, i int) bool {
+ return (b[i] == '\r' || // CR (#xD)
+ b[i] == '\n' || // LF (#xA)
+ b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
+ b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
+ b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9) // PS (#x2029)
+}
+
+func is_crlf(b []byte, i int) bool {
+ return b[i] == '\r' && b[i+1] == '\n'
+}
+
+// Check if the character is a line break or NUL.
+func is_breakz(b []byte, i int) bool {
+ //return is_break(b, i) || is_z(b, i)
+ return ( // is_break:
+ b[i] == '\r' || // CR (#xD)
+ b[i] == '\n' || // LF (#xA)
+ b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
+ b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
+ b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9 || // PS (#x2029)
+ // is_z:
+ b[i] == 0)
+}
+
+// Check if the character is a line break, space, or NUL.
+func is_spacez(b []byte, i int) bool {
+ //return is_space(b, i) || is_breakz(b, i)
+ return ( // is_space:
+ b[i] == ' ' ||
+ // is_breakz:
+ b[i] == '\r' || // CR (#xD)
+ b[i] == '\n' || // LF (#xA)
+ b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
+ b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
+ b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9 || // PS (#x2029)
+ b[i] == 0)
+}
+
+// Check if the character is a line break, space, tab, or NUL.
+func is_blankz(b []byte, i int) bool {
+ //return is_blank(b, i) || is_breakz(b, i)
+ return ( // is_blank:
+ b[i] == ' ' || b[i] == '\t' ||
+ // is_breakz:
+ b[i] == '\r' || // CR (#xD)
+ b[i] == '\n' || // LF (#xA)
+ b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85)
+ b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028)
+ b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9 || // PS (#x2029)
+ b[i] == 0)
+}
+
+// Determine the width of the character.
+func width(b byte) int {
+ // Don't replace these by a switch without first
+ // confirming that it is being inlined.
+ if b&0x80 == 0x00 {
+ return 1
+ }
+ if b&0xE0 == 0xC0 {
+ return 2
+ }
+ if b&0xF0 == 0xE0 {
+ return 3
+ }
+ if b&0xF8 == 0xF0 {
+ return 4
+ }
+ return 0
+
+}