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path: root/vendor/github.com/magiconair/properties/parser.go
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Diffstat (limited to 'vendor/github.com/magiconair/properties/parser.go')
-rw-r--r--vendor/github.com/magiconair/properties/parser.go95
1 files changed, 95 insertions, 0 deletions
diff --git a/vendor/github.com/magiconair/properties/parser.go b/vendor/github.com/magiconair/properties/parser.go
new file mode 100644
index 0000000..ff0e1e1
--- /dev/null
+++ b/vendor/github.com/magiconair/properties/parser.go
@@ -0,0 +1,95 @@
+// Copyright 2016 Frank Schroeder. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package properties
+
+import (
+ "fmt"
+ "runtime"
+)
+
+type parser struct {
+ lex *lexer
+}
+
+func parse(input string) (properties *Properties, err error) {
+ p := &parser{lex: lex(input)}
+ defer p.recover(&err)
+
+ properties = NewProperties()
+ key := ""
+ comments := []string{}
+
+ for {
+ token := p.expectOneOf(itemComment, itemKey, itemEOF)
+ switch token.typ {
+ case itemEOF:
+ goto done
+ case itemComment:
+ comments = append(comments, token.val)
+ continue
+ case itemKey:
+ key = token.val
+ if _, ok := properties.m[key]; !ok {
+ properties.k = append(properties.k, key)
+ }
+ }
+
+ token = p.expectOneOf(itemValue, itemEOF)
+ if len(comments) > 0 {
+ properties.c[key] = comments
+ comments = []string{}
+ }
+ switch token.typ {
+ case itemEOF:
+ properties.m[key] = ""
+ goto done
+ case itemValue:
+ properties.m[key] = token.val
+ }
+ }
+
+done:
+ return properties, nil
+}
+
+func (p *parser) errorf(format string, args ...interface{}) {
+ format = fmt.Sprintf("properties: Line %d: %s", p.lex.lineNumber(), format)
+ panic(fmt.Errorf(format, args...))
+}
+
+func (p *parser) expect(expected itemType) (token item) {
+ token = p.lex.nextItem()
+ if token.typ != expected {
+ p.unexpected(token)
+ }
+ return token
+}
+
+func (p *parser) expectOneOf(expected ...itemType) (token item) {
+ token = p.lex.nextItem()
+ for _, v := range expected {
+ if token.typ == v {
+ return token
+ }
+ }
+ p.unexpected(token)
+ panic("unexpected token")
+}
+
+func (p *parser) unexpected(token item) {
+ p.errorf(token.String())
+}
+
+// recover is the handler that turns panics into returns from the top level of Parse.
+func (p *parser) recover(errp *error) {
+ e := recover()
+ if e != nil {
+ if _, ok := e.(runtime.Error); ok {
+ panic(e)
+ }
+ *errp = e.(error)
+ }
+ return
+}