intl/lwbrk/WordBreaker.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5 #ifndef mozilla_intl_WordBreaker_h__
   6 #define mozilla_intl_WordBreaker_h__
   7
   8 #include "nscore.h"
   9 #include "nsISupports.h"
  10
  11 #define NS_WORDBREAKER_NEED_MORE_TEXT -1
  12
  13 namespace mozilla {
  14 namespace intl {
  15
  16 typedef struct {
  17   uint32_t mBegin;
  18   uint32_t mEnd;
  19 } WordRange;
  20
  21 enum WordBreakClass : uint8_t {
  22   kWbClassSpace = 0,
  23   kWbClassAlphaLetter,
  24   kWbClassPunct,
  25   kWbClassHanLetter,
  26   kWbClassKatakanaLetter,
  27   kWbClassHiraganaLetter,
  28   kWbClassHWKatakanaLetter,
  29   kWbClassScriptioContinua
  30 };
  31
  32 class WordBreaker {
  33  public:
  34   NS_INLINE_DECL_REFCOUNTING(WordBreaker)
  35
  36   static already_AddRefed<WordBreaker> Create();
  37
  38   bool BreakInBetween(const char16_t* aText1, uint32_t aTextLen1,
  39                       const char16_t* aText2, uint32_t aTextLen2);
  40   WordRange FindWord(const char16_t* aText1, uint32_t aTextLen1,
  41                      uint32_t aOffset);
  42   int32_t NextWord(const char16_t* aText, uint32_t aLen, uint32_t aPos);
  43
  44   static WordBreakClass GetClass(char16_t aChar);
  45
  46  private:
  47   ~WordBreaker() = default;
  48 };
  49
  50 }  // namespace intl
  51 }  // namespace mozilla
  52
  53 #endif /* mozilla_intl_WordBreaker_h__ */