diff options
Diffstat (limited to 'compiler/lexer.go')
| -rw-r--r-- | compiler/lexer.go | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/compiler/lexer.go b/compiler/lexer.go index f78b920..1c09260 100644 --- a/compiler/lexer.go +++ b/compiler/lexer.go @@ -10,6 +10,7 @@ type tokenKind string const ( tokenKindChar = tokenKind("char") + tokenKindAnyChar = tokenKind(".") tokenKindRepeat = tokenKind("*") tokenKindAlt = tokenKind("|") tokenKindGroupOpen = tokenKind("(") @@ -59,6 +60,8 @@ func (l *lexer) next() (*token, error) { switch c { case '*': return newToken(tokenKindRepeat, nullChar), nil + case '.': + return newToken(tokenKindAnyChar, nullChar), nil case '|': return newToken(tokenKindAlt, nullChar), nil case '(': @@ -76,7 +79,7 @@ func (l *lexer) next() (*token, error) { } } switch { - case c == '\\' || c == '*' || c == '|' || c == '(' || c == ')': + case c == '\\' || c == '.' || c == '*' || c == '|' || c == '(' || c == ')': return newToken(tokenKindChar, c), nil default: return nil, &SyntaxError{ |