ui/app_list/search/tokenized_string.h

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef UI_APP_LIST_SEARCH_TOKENIZED_STRING_H_
   6 #define UI_APP_LIST_SEARCH_TOKENIZED_STRING_H_
   7
   8 #include <vector>
   9
  10 #include "base/basictypes.h"
  11 #include "base/strings/string16.h"
  12 #include "ui/app_list/app_list_export.h"
  13 #include "ui/gfx/range/range.h"
  14
  15 namespace app_list {
  16
  17 // TokenizedString takes a string and breaks it down into token words. It
  18 // first breaks using BreakIterator to get all the words. Then it breaks
  19 // the words again at camel case boundaries and alpha/number boundaries.
  20 class APP_LIST_EXPORT TokenizedString {
  21  public:
  22   typedef std::vector<base::string16> Tokens;
  23   typedef std::vector<gfx::Range> Mappings;
  24
  25   explicit TokenizedString(const base::string16& text);
  26   ~TokenizedString();
  27
  28   const base::string16& text() const { return text_; }
  29   const Tokens& tokens() const { return tokens_; }
  30   const Mappings& mappings() const { return mappings_; }
  31
  32  private:
  33   void Tokenize();
  34
  35   // Input text.
  36   const base::string16 text_;
  37
  38   // Broken down tokens and the index mapping of tokens in original string.
  39   Tokens tokens_;
  40   Mappings mappings_;
  41
  42   DISALLOW_COPY_AND_ASSIGN(TokenizedString);
  43 };
  44
  45 }  // namespace app_list
  46
  47 #endif  // UI_APP_LIST_SEARCH_TOKENIZED_STRING_H_