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Implement PCRE Matching (prefer left-branch) #2

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Rockingcool merged 48 commits from implementPCREMatchingRules into master 2025-02-09 15:24:29 -06:00
Conversation 0 Commits 48 Files Changed 11 +635 -387
6 changed files with 635 additions and 387 deletions
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Showing only changes of commit 62ca1a872a - Show all commits

9
regex/nfa.go
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@@ -402,19 +402,20 @@ func newState() nfaState {
} }
// Creates and returns a state that _always_ has a zero-length match. // Creates and returns a state that _always_ has a zero-length match.
func zeroLengthMatchState() nfaState { func zeroLengthMatchState() *nfaState {
start := newState() start := &nfaState{}
start.content = newContents(epsilon) start.content = newContents(epsilon)
start.isEmpty = true start.isEmpty = true
start.assert = alwaysTrueAssert start.assert = alwaysTrueAssert
start.output = append([]*nfaState{}, start)
return start return start
} }
func (s nfaState) equals(other nfaState) bool { func (s nfaState) equals(other nfaState) bool {
return slices.Equal(s.content, other.content) && return s.isEmpty == other.isEmpty &&
s.isEmpty == other.isEmpty &&
s.isLast == other.isLast && s.isLast == other.isLast &&
slices.Equal(s.output, other.output) && slices.Equal(s.output, other.output) &&
slices.Equal(s.content, other.content) &&
s.next == other.next && s.next == other.next &&
s.isKleene == other.isKleene && s.isKleene == other.isKleene &&
s.isQuestion == other.isQuestion && s.isQuestion == other.isQuestion &&