Remove the redundant regex implementation

1 files changed, 0 insertions, 48 deletions

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()
-}