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Added unicode support

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Replaced strings with rune-slices, which capture unicode codepoints more
accurately.
This commit is contained in:
Aadhavan Srinivasan
2024-11-18 10:41:50 -05:00
parent 805766a5ba
commit 8a1f1dc621
5 changed files with 8 additions and 8 deletions
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6
nfa.go
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@@ -73,7 +73,7 @@ func cloneStateHelper(state *State, cloneMap map[*State]*State) *State {
// Checks if the given state's assertion is true. Returns true if the given
// state doesn't have an assertion.
func (s State) checkAssertion(str string, idx int) bool {
func (s State) checkAssertion(str []rune, idx int) bool {
if s.assert == SOS {
return idx == 0
}
@@ -90,7 +90,7 @@ func (s State) checkAssertion(str string, idx int) bool {
}
// Returns true if the contents of 's' contain the value at the given index of the given string
func (s State) contentContains(str string, idx int) bool {
func (s State) contentContains(str []rune, idx int) bool {
if s.assert != NONE {
return s.checkAssertion(str, idx)
}
@@ -100,7 +100,7 @@ func (s State) contentContains(str string, idx int) bool {
// Returns the matches for the character at the given index of the given string.
// Also returns the number of matches. Returns -1 if an assertion failed.
func (s State) matchesFor(str string, idx int) ([]*State, int) {
func (s State) matchesFor(str []rune, idx int) ([]*State, int) {
// Assertions can be viewed as 'checks'. If the check fails, we return
// an empty array and 0.
// If it passes, we treat it like any other state, and return all the transitions.