LCOV - code coverage report
Current view: directory - intl/lwbrk/src - nsSemanticUnitScanner.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 31 0 0.0 %
Date: 2012-06-02 Functions: 8 0 0.0 %

       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                 : 
      38                 : #include "nsSemanticUnitScanner.h"
      39                 : #include "prmem.h"
      40                 : 
      41               0 : NS_IMPL_ISUPPORTS1(nsSemanticUnitScanner, nsISemanticUnitScanner)
      42                 : 
      43               0 : nsSemanticUnitScanner::nsSemanticUnitScanner() : nsSampleWordBreaker()
      44                 : {
      45                 :   /* member initializers and constructor code */
      46               0 : }
      47                 : 
      48               0 : nsSemanticUnitScanner::~nsSemanticUnitScanner()
      49                 : {
      50                 :   /* destructor code */
      51               0 : }
      52                 : 
      53                 : 
      54                 : /* void start (in string characterSet); */
      55               0 : NS_IMETHODIMP nsSemanticUnitScanner::Start(const char *characterSet)
      56                 : {
      57                 :     // do nothing for now.
      58               0 :     return NS_OK;
      59                 : }
      60                 : 
      61                 : /* void next (in wstring text, in long length, in long pos, out boolean hasMoreUnits, out long begin, out long end); */
      62               0 : NS_IMETHODIMP nsSemanticUnitScanner::Next(const PRUnichar *text, PRInt32 length, PRInt32 pos, bool isLastBuffer, PRInt32 *begin, PRInt32 *end, bool *_retval)
      63                 : {
      64                 :     // xxx need to bullet proff and check input pointer 
      65                 :     //  make sure begin, end and _retval is not nsnull here
      66                 : 
      67                 :     // if we reach the end, just return
      68               0 :     if (pos >= length) {
      69               0 :        *begin = pos;
      70               0 :        *end = pos;
      71               0 :        *_retval = false;
      72               0 :        return NS_OK;
      73                 :     }
      74                 : 
      75               0 :     PRUint8 char_class = nsSampleWordBreaker::GetClass(text[pos]);
      76                 : 
      77                 :     // if we are in chinese mode, return one han letter at a time
      78                 :     // we should not do this if we are in Japanese or Korean mode
      79               0 :     if (kWbClassHanLetter == char_class) {
      80               0 :        *begin = pos;
      81               0 :        *end = pos+1;
      82               0 :        *_retval = true;
      83               0 :        return NS_OK;
      84                 :     }
      85                 : 
      86                 :     PRInt32 next;
      87                 :     // find the next "word"
      88               0 :     next = NextWord(text, (PRUint32) length, (PRUint32) pos);
      89                 : 
      90                 :     // if we don't have enough text to make decision, return 
      91               0 :     if (next == NS_WORDBREAKER_NEED_MORE_TEXT) {
      92               0 :        *begin = pos;
      93               0 :        *end = isLastBuffer ? length : pos;
      94               0 :        *_retval = isLastBuffer;
      95               0 :        return NS_OK;
      96                 :     } 
      97                 :     
      98                 :     // if what we got is space or punct, look at the next break
      99               0 :     if ((char_class == kWbClassSpace) || (char_class == kWbClassPunct)) {
     100                 :         // if the next "word" is not letters, 
     101                 :         // call itself recursively with the new pos
     102               0 :         return Next(text, length, next, isLastBuffer, begin, end, _retval);
     103                 :     }
     104                 : 
     105                 :     // for the rest, return 
     106               0 :     *begin = pos;
     107               0 :     *end = next;
     108               0 :     *_retval = true;
     109               0 :     return NS_OK;
     110                 : }
     111                 : 

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