Adds try, maybe and join operators with !, ? and ; respectively

1 files changed, 20 insertions, 0 deletions

diff --git a/main/regexast.go b/main/regexast.go
index 0aab053..a5a60c4 100644
--- a/main/regexast.go
+++ b/main/regexast.go
@@ -70,3 +70,23 @@ func (ast RegexASTMinimise) compileWith(next RegexState) RegexState {
 	state.second = ast.content.compileWith(state)
 	return state
 }
+
+type RegexASTTry struct {
+	content RegexAST
+}
+func (ast RegexASTTry) compileWith(next RegexState) RegexState {
+	return RegexGroupState{
+		ast.content.compileWith(next),
+		next,
+	}
+}
+
+type RegexASTMaybe struct {
+	content RegexAST
+}
+func (ast RegexASTMaybe) compileWith(next RegexState) RegexState {
+	return RegexGroupState {
+		next,
+		ast.content.compileWith(next),
+	}
+}