From a3cb4c5d02f0ee75094fc27814c71f8a025d034b Mon Sep 17 00:00:00 2001
From: sbrandt <sbrandt@17b73243-c579-4c4c-a9d2-2d5706c11dac>
Date: Wed, 3 Apr 2013 19:12:46 +0000
Subject: Add the basic grammar files, and the changes to the piraha code
 necessary to parse all of Cactus.

git-svn-id: http://svn.cactuscode.org/flesh/trunk@4990 17b73243-c579-4c4c-a9d2-2d5706c11dac
---
 src/piraha/NegLookAhead.cc | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 src/piraha/NegLookAhead.cc

(limited to 'src/piraha/NegLookAhead.cc')

diff --git a/src/piraha/NegLookAhead.cc b/src/piraha/NegLookAhead.cc
new file mode 100644
index 00000000..a70e5539
--- /dev/null
+++ b/src/piraha/NegLookAhead.cc
@@ -0,0 +1,10 @@
+#include "Piraha.hpp"
+
+using namespace piraha;
+
+bool NegLookAhead::match(Matcher *m) {
+    int pos = m->pos;
+    bool b = pattern->match(m);
+    m->pos = pos;
+    return !b;
+}
-- 
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