diff options
Diffstat (limited to 'subex/lex.go')
| -rw-r--r-- | subex/lex.go | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/subex/lex.go b/subex/lex.go index 0f00a99..dfe89b7 100644 --- a/subex/lex.go +++ b/subex/lex.go @@ -22,6 +22,9 @@ func (l *StringRuneReader) Next() rune { func (l *StringRuneReader) Rewind() { l.pos -= l.width } +func (l *StringRuneReader) RewindRune(r rune) { + l.pos -= utf8.RuneLen(r) +} func NewStringRuneReader(input string) RuneReader { return &StringRuneReader { |