Rockingcool/kleingrep
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This commit is contained in:
Aadhavan Srinivasan
2025-02-02 12:44:06 -05:00
parent b129d83c3f
commit f94e3f2e71
1 changed files with 3 additions and 3 deletions
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6
regex/compile.go
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@@ -966,9 +966,9 @@ func thompson(re []postfixNode) (Reg, error) {
s.groupNum = lparenNode.groupNum s.groupNum = lparenNode.groupNum
to_add := concatenate(lparenNode, s) to_add := concatenate(lparenNode, s)
nfa = append(nfa, to_add) nfa = append(nfa, to_add)
} else if middleNode.groupBegin && len(middleNode.transitions) == 0 { // The middle node is a lone lparen - something like '(())', and I'm looking at the first closing parentheses } else if middleNode.groupBegin && len(middleNode.transitions) == 0 { // The middle node is a lone lparen - something like '(())', and I'm looking at the first rparen
nfa = append(nfa, lparenNode) nfa = append(nfa, lparenNode) // I shouldn't have popped this out, because it is not involved in the current capturing group
s.groupNum = middleNode.groupNum // In this case, the 'middle' node is actually a paren node s.groupNum = middleNode.groupNum // In this case, the 'middle' node is actually an lparen
to_add := concatenate(middleNode, s) to_add := concatenate(middleNode, s)
nfa = append(nfa, to_add) nfa = append(nfa, to_add)
} else { } else {