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REFACTOR NEEDED: Added another special case; insert instead of appending into currentStates

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This commit is contained in:
Aadhavan Srinivasan
2025-02-05 22:51:55 -05:00
parent fbc9bea9fb
commit ed4ffde64e
1 changed files with 6 additions and 4 deletions
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10
regex/matching.go
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@@ -379,17 +379,17 @@ func findAllSubmatchHelper(start *nfaState, str []rune, offset int, numGroups in
if currentState.isKleene { // Reverse order of adding things
rightState := currentState.splitState
copyThread(rightState, currentState)
currentStates = append(currentStates, *currentState.splitState)
currentStates = slices.Insert(currentStates, currentStateIdx+1, *rightState)
leftState := currentState.next
copyThread(leftState, currentState)
currentStates = append(currentStates, *currentState.next)
currentStates = slices.Insert(currentStates, currentStateIdx+2, *leftState)
} else {
leftState := currentState.next
copyThread(leftState, currentState)
currentStates = append(currentStates, *currentState.next)
currentStates = slices.Insert(currentStates, currentStateIdx+1, *leftState)
rightState := currentState.splitState
copyThread(rightState, currentState)
currentStates = append(currentStates, *currentState.splitState)
currentStates = slices.Insert(currentStates, currentStateIdx+2, *rightState)
}
continue
}
@@ -417,6 +417,8 @@ func findAllSubmatchHelper(start *nfaState, str []rune, offset int, numGroups in
currentStates = slices.Insert(currentStates, currentStateIdx+1, allMatches...)
} else if currentState.groupEnd {
currentStates = append(currentStates, allMatches...)
} else if currentState.assert != noneAssert {
currentStates = append(currentStates, allMatches...)
} else {
nextStates = append(nextStates, allMatches...)
}