LCOV - code coverage report
Current view: directory - objdir/dist/include - nsILineBreaker.h (source / functions) Found Hit Coverage
Test: app.info Lines: 5 5 100.0 %
Date: 2012-06-02 Functions: 3 3 100.0 %

       1                 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2                 : /* ***** BEGIN LICENSE BLOCK *****
       3                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       4                 :  *
       5                 :  * The contents of this file are subject to the Mozilla Public License Version
       6                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       7                 :  * the License. You may obtain a copy of the License at
       8                 :  * http://www.mozilla.org/MPL/
       9                 :  *
      10                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      11                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      12                 :  * for the specific language governing rights and limitations under the
      13                 :  * License.
      14                 :  *
      15                 :  * The Original Code is mozilla.org code.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is
      18                 :  * Netscape Communications Corporation.
      19                 :  * Portions created by the Initial Developer are Copyright (C) 1998
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *
      24                 :  * Alternatively, the contents of this file may be used under the terms of
      25                 :  * either of the GNU General Public License Version 2 or later (the "GPL"),
      26                 :  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      27                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      28                 :  * of those above. If you wish to allow use of your version of this file only
      29                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      30                 :  * use your version of this file under the terms of the MPL, indicate your
      31                 :  * decision by deleting the provisions above and replace them with the notice
      32                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      33                 :  * the provisions above, a recipient may use your version of this file under
      34                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      35                 :  *
      36                 :  * ***** END LICENSE BLOCK ***** */
      37                 : #ifndef nsILineBreaker_h__
      38                 : #define nsILineBreaker_h__
      39                 : 
      40                 : #include "nsISupports.h"
      41                 : 
      42                 : #include "nscore.h"
      43                 : 
      44                 : #define NS_LINEBREAKER_NEED_MORE_TEXT -1
      45                 : 
      46                 : // {5ae68851-d9a3-49fd-9388-58586dad8044}
      47                 : #define NS_ILINEBREAKER_IID \
      48                 : { 0x5ae68851, 0xd9a3, 0x49fd, \
      49                 :     { 0x93, 0x88, 0x58, 0x58, 0x6d, 0xad, 0x80, 0x44 } }
      50                 : 
      51                 : class nsILineBreaker : public nsISupports
      52            1404 : {
      53                 : public:
      54                 :   NS_DECLARE_STATIC_IID_ACCESSOR(NS_ILINEBREAKER_IID)
      55                 :   virtual PRInt32 Next( const PRUnichar* aText, PRUint32 aLen, 
      56                 :                         PRUint32 aPos) = 0;
      57                 : 
      58                 :   virtual PRInt32 Prev( const PRUnichar* aText, PRUint32 aLen, 
      59                 :                         PRUint32 aPos) = 0;
      60                 : 
      61                 :   // Call this on a word with whitespace at either end. We will apply JISx4501
      62                 :   // rules to find breaks inside the word. aBreakBefore is set to the break-
      63                 :   // before status of each character; aBreakBefore[0] will always be false
      64                 :   // because we never return a break before the first character.
      65                 :   // aLength is the length of the aText array and also the length of the aBreakBefore
      66                 :   // output array.
      67                 :   virtual void GetJISx4051Breaks(const PRUnichar* aText, PRUint32 aLength,
      68                 :                                  PRUint8* aBreakBefore) = 0;
      69                 :   virtual void GetJISx4051Breaks(const PRUint8* aText, PRUint32 aLength,
      70                 :                                  PRUint8* aBreakBefore) = 0;
      71                 : };
      72                 : 
      73                 : NS_DEFINE_STATIC_IID_ACCESSOR(nsILineBreaker, NS_ILINEBREAKER_IID)
      74                 : 
      75                 : static inline bool
      76             858 : NS_IsSpace(PRUnichar u)
      77                 : {
      78                 :   return u == 0x0020 ||                  // SPACE
      79                 :          u == 0x0009 ||                  // CHARACTER TABULATION
      80                 :          u == 0x000D ||                  // CARRIAGE RETURN
      81                 :          (0x2000 <= u && u <= 0x2006) || // EN QUAD, EM QUAD, EN SPACE,
      82                 :                                          // EM SPACE, THREE-PER-EM SPACE,
      83                 :                                          // FOUR-PER-SPACE, SIX-PER-EM SPACE,
      84                 :          (0x2008 <= u && u <= 0x200B) || // PUNCTUATION SPACE, THIN SPACE,
      85                 :                                          // HAIR SPACE, ZERO WIDTH SPACE
      86             858 :          u == 0x3000;                    // IDEOGRAPHIC SPACE
      87                 : }
      88                 : 
      89                 : static inline bool
      90             850 : NS_NeedsPlatformNativeHandling(PRUnichar aChar)
      91                 : {
      92             850 :   return (0x0e01 <= aChar && aChar <= 0x0fff); // Thai, Lao, Tibetan
      93                 : }
      94                 : 
      95                 : #endif  /* nsILineBreaker_h__ */

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