From cfbe645715114234510bda068d2f30ffbe208eae Mon Sep 17 00:00:00 2001
From: Charlie Stanton <charlie@shtanton.xyz>
Date: Sat, 27 Aug 2022 18:11:10 +0100
Subject: Adds new filters

- Begin terminals
- End terminals
- All terminals
- Negate
- AND
---
 main/lex.go | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

(limited to 'main/lex.go')

diff --git a/main/lex.go b/main/lex.go
index fdb3b59..91231ed 100644
--- a/main/lex.go
+++ b/main/lex.go
@@ -116,7 +116,13 @@ const (
 	TokenDot // .
 	TokenAst // *
 	TokenBar // |
+	TokenAnd // &&
+	TokenHat // ^
+	TokenDollar // $
 	TokenQuestion // ?
+	TokenHatDollar // ^$
+	TokenExclamation // !
+	TokenTilde // ~
 	TokenPatternStringIndex // A string index in a pattern
 	TokenPatternIntegerIndex // An integer index in a pattern
 )
@@ -205,6 +211,27 @@ func lexCommand(l *lexer) stateFunc {
 		case '}':
 			l.emit(TokenRBrace)
 			return lexCommandEnd
+		case '&':
+			if l.accept("&") {
+				l.emit(TokenAnd)
+				return lexCommand
+			}
+		case '^':
+			if l.accept("$") {
+				l.emit(TokenHatDollar)
+			} else {
+				l.emit(TokenHat)
+			}
+			return lexCommand
+		case '$':
+			l.emit(TokenDollar)
+			return lexCommand
+		case '!':
+			l.emit(TokenExclamation)
+			return lexCommand
+		case '~':
+			l.emit(TokenTilde)
+			return lexCommand
 	}
 	if isAlpha(r) {
 		l.emit(TokenCommand)
-- 
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