diff options
Diffstat (limited to 'vendor/github.com/alecthomas/chroma/regexp.go')
| -rw-r--r-- | vendor/github.com/alecthomas/chroma/regexp.go | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/vendor/github.com/alecthomas/chroma/regexp.go b/vendor/github.com/alecthomas/chroma/regexp.go index d13d58d69f..a3f4eb139f 100644 --- a/vendor/github.com/alecthomas/chroma/regexp.go +++ b/vendor/github.com/alecthomas/chroma/regexp.go @@ -6,6 +6,7 @@ import ( "regexp" "strings" "sync" + "time" "unicode/utf8" "github.com/dlclark/regexp2" @@ -160,6 +161,14 @@ func Tokenise(lexer Lexer, options *TokeniseOptions, text string) ([]Token, erro // Rules maps from state to a sequence of Rules. type Rules map[string][]Rule +// Rename clones rules then a rule. +func (r Rules) Rename(old, new string) Rules { + r = r.Clone() + r[new] = r[old] + delete(r, old) + return r +} + // Clone returns a clone of the Rules. func (r Rules) Clone() Rules { out := map[string][]Rule{} @@ -170,6 +179,15 @@ func (r Rules) Clone() Rules { return out } +// Merge creates a clone of "r" then merges "rules" into the clone. +func (r Rules) Merge(rules Rules) Rules { + out := r.Clone() + for k, v := range rules.Clone() { + out[k] = v + } + return out +} + // MustNewLexer creates a new Lexer or panics. func MustNewLexer(config *Config, rules Rules) *RegexLexer { lexer, err := NewLexer(config, rules) @@ -376,6 +394,7 @@ func (r *RegexLexer) maybeCompile() (err error) { if err != nil { return fmt.Errorf("failed to compile rule %s.%d: %s", state, i, err) } + rule.Regexp.MatchTimeout = time.Millisecond * 250 } } } |