LCOV - code coverage report
Current view: directory - intl/uconv/ucvcn - nsUnicodeToGB2312V2.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 32 19 59.4 %
Date: 2012-06-02 Functions: 2 2 100.0 %

       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 Communicator client 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                 :  *   Yueheng Xu, yueheng.xu@intel.com
      24                 :  *
      25                 :  * Alternatively, the contents of this file may be used under the terms of
      26                 :  * either of the GNU General Public License Version 2 or later (the "GPL"),
      27                 :  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      28                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      29                 :  * of those above. If you wish to allow use of your version of this file only
      30                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      31                 :  * use your version of this file under the terms of the MPL, indicate your
      32                 :  * decision by deleting the provisions above and replace them with the notice
      33                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      34                 :  * the provisions above, a recipient may use your version of this file under
      35                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      36                 :  *
      37                 :  * ***** END LICENSE BLOCK ***** */
      38                 : 
      39                 : #include "nsUnicodeToGB2312V2.h"
      40                 : #include "nsUCvCnDll.h"
      41                 : #include "gbku.h"
      42                 : 
      43                 : //----------------------------------------------------------------------
      44                 : // Class nsUnicodeToGB2312V2 [implementation]
      45               3 : nsUnicodeToGB2312V2::nsUnicodeToGB2312V2() :
      46               3 :   nsEncoderSupport(2)
      47                 : {
      48               3 :   mUtil.InitToGBKTable();
      49               3 : }
      50                 : 
      51               1 : NS_IMETHODIMP nsUnicodeToGB2312V2::ConvertNoBuff(const PRUnichar * aSrc, 
      52                 :                                                  PRInt32 * aSrcLength, 
      53                 :                                                  char * aDest, 
      54                 :                                                  PRInt32 * aDestLength)
      55                 : {
      56               1 :   PRInt32 iSrcLength = 0;
      57               1 :   PRInt32 iDestLength = 0;
      58               1 :   nsresult res = NS_OK;
      59                 :   
      60              13 :   while (iSrcLength < *aSrcLength)
      61                 :   {
      62                 :     //if unicode's hi byte has something, it is not ASCII, must be a GB
      63              11 :     if(IS_ASCII(*aSrc))
      64                 :     {
      65                 :       // this is an ASCII
      66              11 :       *aDest = CAST_UNICHAR_TO_CHAR(*aSrc);
      67              11 :       aDest++; // increment 1 byte
      68              11 :       iDestLength +=1;
      69                 :     } else {
      70                 :       char byte1, byte2;
      71               0 :       if(mUtil.UnicodeToGBKChar(*aSrc, false, &byte1, &byte2))
      72                 :       {
      73               0 :         if(iDestLength+2 > *aDestLength) 
      74                 :         {
      75               0 :           res = NS_OK_UENC_MOREOUTPUT;
      76               0 :           break;
      77                 :         }
      78               0 :         aDest[0]=byte1;
      79               0 :         aDest[1]=byte2;
      80               0 :         aDest += 2;  // increment 2 bytes
      81               0 :         iDestLength +=2; // each GB char count as two in char* string
      82                 :       } else {
      83                 :         // cannot convert
      84               0 :         res= NS_ERROR_UENC_NOMAPPING;
      85               0 :         iSrcLength++;   // include length of the unmapped character
      86               0 :         break;
      87                 :       }
      88                 :     }
      89              11 :     iSrcLength++ ;   // each unicode char just count as one in PRUnichar* string
      90              11 :     aSrc++;  
      91              11 :     if ( iDestLength >= (*aDestLength) && (iSrcLength < *aSrcLength ))
      92                 :     {
      93               0 :       res = NS_OK_UENC_MOREOUTPUT;
      94               0 :       break;
      95                 :     }
      96                 :   }
      97               1 :   *aDestLength = iDestLength;
      98               1 :   *aSrcLength = iSrcLength;
      99               1 :   return res;
     100                 : }

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