From ce2db2bc333ed938ec93d5ad0838f8cb720c4865 Mon Sep 17 00:00:00 2001 From: Charlie Stanton Date: Sat, 24 Dec 2022 10:03:56 +0000 Subject: Remove the redundant regex implementation --- main/regexstate.go | 48 ------------------------------------------------ 1 file changed, 48 deletions(-) delete mode 100644 main/regexstate.go (limited to 'main/regexstate.go') diff --git a/main/regexstate.go b/main/regexstate.go deleted file mode 100644 index 16d5581..0000000 --- a/main/regexstate.go +++ /dev/null @@ -1,48 +0,0 @@ -package main - -type RegexState interface { - eat(char rune) []RegexState - accepting() bool -} - -type RegexNoneState struct {} -func (state RegexNoneState) eat(char rune) []RegexState { - return nil -} -func (state RegexNoneState) accepting() bool { - return true -} - -type RegexAnyState struct { - next RegexState -} -func (state RegexAnyState) eat(char rune) []RegexState { - return []RegexState{state.next} -} -func (state RegexAnyState) accepting() bool { - return false -} - -type RegexRuneState struct { - rune rune - next RegexState -} -func (state RegexRuneState) eat(char rune) []RegexState { - if char == state.rune { - return []RegexState{state.next} - } - return nil -} -func (state RegexRuneState) accepting() bool { - return false -} - -type RegexGroupState struct { - first, second RegexState -} -func (state RegexGroupState) eat(char rune) []RegexState { - return append(state.first.eat(char), state.second.eat(char)...) -} -func (state RegexGroupState) accepting() bool { - return state.first.accepting() || state.second.accepting() -} -- cgit v1.2.3