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Diffstat (limited to 'vendor/github.com/pelletier/go-buffruneio')
| -rw-r--r-- | vendor/github.com/pelletier/go-buffruneio/README.md | 62 | ||||
| -rw-r--r-- | vendor/github.com/pelletier/go-buffruneio/buffruneio.go | 117 |
2 files changed, 0 insertions, 179 deletions
diff --git a/vendor/github.com/pelletier/go-buffruneio/README.md b/vendor/github.com/pelletier/go-buffruneio/README.md deleted file mode 100644 index ff608b3..0000000 --- a/vendor/github.com/pelletier/go-buffruneio/README.md +++ /dev/null @@ -1,62 +0,0 @@ -# buffruneio - -[](https://travis-ci.org/pelletier/go-buffruneio) -[](https://godoc.org/github.com/pelletier/go-buffruneio) - -Buffruneio is a wrapper around bufio to provide buffered runes access with -unlimited unreads. - -```go -import "github.com/pelletier/go-buffruneio" -``` - -## Examples - -```go -import ( - "fmt" - "github.com/pelletier/go-buffruneio" - "strings" -) - -reader := buffruneio.NewReader(strings.NewReader("abcd")) -fmt.Println(reader.ReadRune()) // 'a' -fmt.Println(reader.ReadRune()) // 'b' -fmt.Println(reader.ReadRune()) // 'c' -reader.UnreadRune() -reader.UnreadRune() -fmt.Println(reader.ReadRune()) // 'b' -fmt.Println(reader.ReadRune()) // 'c' -``` - -## Documentation - -The documentation and additional examples are available at -[godoc.org](http://godoc.org/github.com/pelletier/go-buffruneio). - -## Contribute - -Feel free to report bugs and patches using GitHub's pull requests system on -[pelletier/go-toml](https://github.com/pelletier/go-buffruneio). Any feedback is -much appreciated! - -## LICENSE - -Copyright (c) 2016 Thomas Pelletier - -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/github.com/pelletier/go-buffruneio/buffruneio.go b/vendor/github.com/pelletier/go-buffruneio/buffruneio.go deleted file mode 100644 index 4e6d6ea..0000000 --- a/vendor/github.com/pelletier/go-buffruneio/buffruneio.go +++ /dev/null @@ -1,117 +0,0 @@ -// Package buffruneio is a wrapper around bufio to provide buffered runes access with unlimited unreads. -package buffruneio - -import ( - "bufio" - "container/list" - "errors" - "io" -) - -// Rune to indicate end of file. -const ( - EOF = -(iota + 1) -) - -// ErrNoRuneToUnread is returned by UnreadRune() when the read index is already at the beginning of the buffer. -var ErrNoRuneToUnread = errors.New("no rune to unwind") - -// Reader implements runes buffering for an io.Reader object. -type Reader struct { - buffer *list.List - current *list.Element - input *bufio.Reader -} - -// NewReader returns a new Reader. -func NewReader(rd io.Reader) *Reader { - return &Reader{ - buffer: list.New(), - input: bufio.NewReader(rd), - } -} - -type runeWithSize struct { - r rune - size int -} - -func (rd *Reader) feedBuffer() error { - r, size, err := rd.input.ReadRune() - - if err != nil { - if err != io.EOF { - return err - } - r = EOF - } - - newRuneWithSize := runeWithSize{r, size} - - rd.buffer.PushBack(newRuneWithSize) - if rd.current == nil { - rd.current = rd.buffer.Back() - } - return nil -} - -// ReadRune reads the next rune from buffer, or from the underlying reader if needed. -func (rd *Reader) ReadRune() (rune, int, error) { - if rd.current == rd.buffer.Back() || rd.current == nil { - err := rd.feedBuffer() - if err != nil { - return EOF, 0, err - } - } - - runeWithSize := rd.current.Value.(runeWithSize) - rd.current = rd.current.Next() - return runeWithSize.r, runeWithSize.size, nil -} - -// UnreadRune pushes back the previously read rune in the buffer, extending it if needed. -func (rd *Reader) UnreadRune() error { - if rd.current == rd.buffer.Front() { - return ErrNoRuneToUnread - } - if rd.current == nil { - rd.current = rd.buffer.Back() - } else { - rd.current = rd.current.Prev() - } - return nil -} - -// Forget removes runes stored before the current stream position index. -func (rd *Reader) Forget() { - if rd.current == nil { - rd.current = rd.buffer.Back() - } - for ; rd.current != rd.buffer.Front(); rd.buffer.Remove(rd.current.Prev()) { - } -} - -// PeekRune returns at most the next n runes, reading from the uderlying source if -// needed. Does not move the current index. It includes EOF if reached. -func (rd *Reader) PeekRunes(n int) []rune { - res := make([]rune, 0, n) - cursor := rd.current - for i := 0; i < n; i++ { - if cursor == nil { - err := rd.feedBuffer() - if err != nil { - return res - } - cursor = rd.buffer.Back() - } - if cursor != nil { - r := cursor.Value.(runeWithSize).r - res = append(res, r) - if r == EOF { - return res - } - cursor = cursor.Next() - } - } - return res -} |