Event matching by regular expression matching on URLs.

chrome/common/extensions/matcher/string_pattern.h

+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROME_COMMON_EXTENSIONS_MATCHER_STRING_PATTERN_H_
+#define CHROME_COMMON_EXTENSIONS_MATCHER_STRING_PATTERN_H_
+
+#include <string>
+#include <vector>
+
+#include "base/basictypes.h"
+
+namespace extensions {
+
+// An individual pattern of a substring or regex matcher. A pattern consists of
+// a string (interpreted as individual bytes, no character encoding) and an
+// identifier.
+// IDs are returned to the caller of SubstringSetMatcher::Match() or
+// RegexMatcher::MatchURL() to help the caller to figure out what
+// patterns matched a string. All patterns registered to a matcher
+// need to contain unique IDs.
+class StringPattern {
+ public:
+  typedef int ID;
+
+  StringPattern(const std::string& pattern, ID id);
+  ~StringPattern();
+  const std::string& pattern() const { return pattern_; }
+  ID id() const { return id_; }
+
+  bool operator<(const StringPattern& rhs) const;
+
+ private:
+  std::string pattern_;
+  ID id_;
+
+  DISALLOW_COPY_AND_ASSIGN(StringPattern);
+};
+
+}  // namespace extensions
+
+#endif  // CHROME_COMMON_EXTENSIONS_MATCHER_STRING_PATTERN_H_