src/net/instaweb/util/public/wildcard.h

/**
 * Copyright 2010 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

// Author: jmarantz@google.com (Joshua Marantz)

#ifndef NET_INSTAWEB_UTIL_PUBLIC_WILDCARD_H_
#define NET_INSTAWEB_UTIL_PUBLIC_WILDCARD_H_

#include <vector>
#include "net/instaweb/util/public/string_util.h"

namespace net_instaweb {

class Wildcard {
 public:
  static const char kMatchAny;  // *
  static const char kMatchOne;  // ?

  // Create a wildcard object with the specification using * and ?
  // as wildcards.  There is currently no way to quote * or ?.
  explicit Wildcard(const StringPiece& wildcard_spec);

  // Determines whether a string matches the wildcard.
  bool Match(const StringPiece& str) { return MatchHelper(0, str); }

  // Determines whether this wildcard is just a simple name, lacking
  // any wildcard characters.
  bool IsSimple() const;

 private:
  bool MatchHelper(int piece_index, const StringPiece& str);

  std::string storage_;
  std::vector<StringPiece> pieces_;
  DISALLOW_COPY_AND_ASSIGN(Wildcard);
};

}  // namespace net_instaweb

#endif  // NET_INSTAWEB_UTIL_PUBLIC_WILDCARD_H_