Imported WebKit commit 2ea9d364d0f6efa8fa64acf19f451504c59be0e4 (http://svn.webkit.org/repository/webkit/trunk@104285)

1 files changed, 59 insertions, 0 deletions

diff --git a/Source/JavaScriptCore/yarr/YarrSyntaxChecker.cpp b/Source/JavaScriptCore/yarr/YarrSyntaxChecker.cpp
new file mode 100644
index 000000000..51fda94d8
--- /dev/null
+++ b/Source/JavaScriptCore/yarr/YarrSyntaxChecker.cpp
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2011 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */
+
+#include "config.h"
+#include "YarrSyntaxChecker.h"
+
+#include "YarrParser.h"
+
+namespace JSC { namespace Yarr {
+
+class SyntaxChecker {
+public:
+    void assertionBOL() {}
+    void assertionEOL() {}
+    void assertionWordBoundary(bool) {}
+    void atomPatternCharacter(UChar) {}
+    void atomBuiltInCharacterClass(BuiltInCharacterClassID, bool) {}
+    void atomCharacterClassBegin(bool = false) {}
+    void atomCharacterClassAtom(UChar) {}
+    void atomCharacterClassRange(UChar, UChar) {}
+    void atomCharacterClassBuiltIn(BuiltInCharacterClassID, bool) {}
+    void atomCharacterClassEnd() {}
+    void atomParenthesesSubpatternBegin(bool = true) {}
+    void atomParentheticalAssertionBegin(bool = false) {}
+    void atomParenthesesEnd() {}
+    void atomBackReference(unsigned) {}
+    void quantifyAtom(unsigned, unsigned, bool) {}
+    void disjunction() {}
+};
+
+const char* checkSyntax(const UString& pattern)
+{
+    SyntaxChecker syntaxChecker;
+    return parse(syntaxChecker, pattern);
+}
+
+}} // JSC::YARR