diff options
Diffstat (limited to 'vendor/github.com/pelletier/go-toml/lexer.go')
| -rw-r--r-- | vendor/github.com/pelletier/go-toml/lexer.go | 97 |
1 files changed, 73 insertions, 24 deletions
diff --git a/vendor/github.com/pelletier/go-toml/lexer.go b/vendor/github.com/pelletier/go-toml/lexer.go index 6254d390dc..425e847a7a 100644 --- a/vendor/github.com/pelletier/go-toml/lexer.go +++ b/vendor/github.com/pelletier/go-toml/lexer.go @@ -26,7 +26,7 @@ type tomlLexer struct { currentTokenStart int currentTokenStop int tokens []token - depth int + brackets []rune line int col int endbufferLine int @@ -123,6 +123,8 @@ func (l *tomlLexer) lexVoid() tomlLexStateFn { for { next := l.peek() switch next { + case '}': // after '{' + return l.lexRightCurlyBrace case '[': return l.lexTableKey case '#': @@ -140,10 +142,6 @@ func (l *tomlLexer) lexVoid() tomlLexStateFn { l.skip() } - if l.depth > 0 { - return l.lexRvalue - } - if isKeyStartChar(next) { return l.lexKey } @@ -167,10 +165,8 @@ func (l *tomlLexer) lexRvalue() tomlLexStateFn { case '=': return l.lexEqual case '[': - l.depth++ return l.lexLeftBracket case ']': - l.depth-- return l.lexRightBracket case '{': return l.lexLeftCurlyBrace @@ -188,12 +184,10 @@ func (l *tomlLexer) lexRvalue() tomlLexStateFn { fallthrough case '\n': l.skip() - if l.depth == 0 { - return l.lexVoid + if len(l.brackets) > 0 && l.brackets[len(l.brackets)-1] == '[' { + return l.lexRvalue } - return l.lexRvalue - case '_': - return l.errorf("cannot start number with underscore") + return l.lexVoid } if l.follow("true") { @@ -223,9 +217,12 @@ func (l *tomlLexer) lexRvalue() tomlLexStateFn { } possibleDate := l.peekString(35) - dateMatch := dateRegexp.FindString(possibleDate) - if dateMatch != "" { - l.fastForward(len(dateMatch)) + dateSubmatches := dateRegexp.FindStringSubmatch(possibleDate) + if dateSubmatches != nil && dateSubmatches[0] != "" { + l.fastForward(len(dateSubmatches[0])) + if dateSubmatches[2] == "" { // no timezone information => local date + return l.lexLocalDate + } return l.lexDate } @@ -233,10 +230,6 @@ func (l *tomlLexer) lexRvalue() tomlLexStateFn { return l.lexNumber } - if isAlphanumeric(next) { - return l.lexKey - } - return l.errorf("no value can start with %c", next) } @@ -247,12 +240,17 @@ func (l *tomlLexer) lexRvalue() tomlLexStateFn { func (l *tomlLexer) lexLeftCurlyBrace() tomlLexStateFn { l.next() l.emit(tokenLeftCurlyBrace) - return l.lexRvalue + l.brackets = append(l.brackets, '{') + return l.lexVoid } func (l *tomlLexer) lexRightCurlyBrace() tomlLexStateFn { l.next() l.emit(tokenRightCurlyBrace) + if len(l.brackets) == 0 || l.brackets[len(l.brackets)-1] != '{' { + return l.errorf("cannot have '}' here") + } + l.brackets = l.brackets[:len(l.brackets)-1] return l.lexRvalue } @@ -261,6 +259,11 @@ func (l *tomlLexer) lexDate() tomlLexStateFn { return l.lexRvalue } +func (l *tomlLexer) lexLocalDate() tomlLexStateFn { + l.emit(tokenLocalDate) + return l.lexRvalue +} + func (l *tomlLexer) lexTrue() tomlLexStateFn { l.fastForward(4) l.emit(tokenTrue) @@ -294,6 +297,9 @@ func (l *tomlLexer) lexEqual() tomlLexStateFn { func (l *tomlLexer) lexComma() tomlLexStateFn { l.next() l.emit(tokenComma) + if len(l.brackets) > 0 && l.brackets[len(l.brackets)-1] == '{' { + return l.lexVoid + } return l.lexRvalue } @@ -324,7 +330,26 @@ func (l *tomlLexer) lexKey() tomlLexStateFn { } else if r == '\n' { return l.errorf("keys cannot contain new lines") } else if isSpace(r) { - break + str := " " + // skip trailing whitespace + l.next() + for r = l.peek(); isSpace(r); r = l.peek() { + str += string(r) + l.next() + } + // break loop if not a dot + if r != '.' { + break + } + str += "." + // skip trailing whitespace after dot + l.next() + for r = l.peek(); isSpace(r); r = l.peek() { + str += string(r) + l.next() + } + growingString += str + continue } else if r == '.' { // skip } else if !isValidBareChar(r) { @@ -353,6 +378,7 @@ func (l *tomlLexer) lexComment(previousState tomlLexStateFn) tomlLexStateFn { func (l *tomlLexer) lexLeftBracket() tomlLexStateFn { l.next() l.emit(tokenLeftBracket) + l.brackets = append(l.brackets, '[') return l.lexRvalue } @@ -504,7 +530,7 @@ func (l *tomlLexer) lexStringAsString(terminator string, discardLeadingNewLine, } else { r := l.peek() - if 0x00 <= r && r <= 0x1F && !(acceptNewLines && (r == '\n' || r == '\r')) { + if 0x00 <= r && r <= 0x1F && r != '\t' && !(acceptNewLines && (r == '\n' || r == '\r')) { return "", fmt.Errorf("unescaped control character %U", r) } l.next() @@ -535,7 +561,6 @@ func (l *tomlLexer) lexString() tomlLexStateFn { } str, err := l.lexStringAsString(terminator, discardLeadingNewLine, acceptNewLines) - if err != nil { return l.errorf(err.Error()) } @@ -607,6 +632,10 @@ func (l *tomlLexer) lexInsideTableKey() tomlLexStateFn { func (l *tomlLexer) lexRightBracket() tomlLexStateFn { l.next() l.emit(tokenRightBracket) + if len(l.brackets) == 0 || l.brackets[len(l.brackets)-1] != '[' { + return l.errorf("cannot have ']' here") + } + l.brackets = l.brackets[:len(l.brackets)-1] return l.lexRvalue } @@ -733,7 +762,27 @@ func (l *tomlLexer) run() { } func init() { - dateRegexp = regexp.MustCompile(`^\d{1,4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}(\.\d{1,9})?(Z|[+-]\d{2}:\d{2})`) + // Regexp for all date/time formats supported by TOML. + // Group 1: nano precision + // Group 2: timezone + // + // /!\ also matches the empty string + // + // Example matches: + //1979-05-27T07:32:00Z + //1979-05-27T00:32:00-07:00 + //1979-05-27T00:32:00.999999-07:00 + //1979-05-27 07:32:00Z + //1979-05-27 00:32:00-07:00 + //1979-05-27 00:32:00.999999-07:00 + //1979-05-27T07:32:00 + //1979-05-27T00:32:00.999999 + //1979-05-27 07:32:00 + //1979-05-27 00:32:00.999999 + //1979-05-27 + //07:32:00 + //00:32:00.999999 + dateRegexp = regexp.MustCompile(`^(?:\d{1,4}-\d{2}-\d{2})?(?:[T ]?\d{2}:\d{2}:\d{2}(\.\d{1,9})?(Z|[+-]\d{2}:\d{2})?)?`) } // Entry point |