LCOV - code coverage report
Current view: directory - dom/plugins/base - nsPluginManifestLineReader.h (source / functions) Found Hit Coverage
Test: app.info Lines: 46 44 95.7 %
Date: 2012-06-02 Functions: 8 8 100.0 %

       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 the GNU General Public License Version 2 or later (the "GPL"), or
      26                 :  * 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                 : #ifndef nsPluginManifestLineReader_h_
      39                 : #define nsPluginManifestLineReader_h_
      40                 : 
      41                 : #include "nspr.h"
      42                 : #include "nsDebug.h"
      43                 : 
      44                 : #ifdef XP_WIN
      45                 : #define PLUGIN_REGISTRY_FIELD_DELIMITER '|'
      46                 : #else
      47                 : #define PLUGIN_REGISTRY_FIELD_DELIMITER ':'
      48                 : #endif
      49                 : 
      50                 : #define PLUGIN_REGISTRY_END_OF_LINE_MARKER '$'
      51                 : 
      52                 : class nsPluginManifestLineReader
      53                 : {
      54                 :   public:
      55               5 :     nsPluginManifestLineReader() {mBase = mCur = mNext = mLimit = 0;} 
      56              10 :     ~nsPluginManifestLineReader() { if (mBase) delete[] mBase; mBase=0;}
      57                 :     
      58               5 :     char* Init(PRUint32 flen) 
      59                 :     {
      60              10 :       mBase = mCur = mNext = new char[flen + 1];
      61               5 :       if (mBase) {
      62               5 :         mLimit = mBase + flen;
      63               5 :         *mLimit = 0;
      64                 :       }
      65               5 :       mLength = 0;
      66               5 :       return mBase;
      67                 :     }
      68                 :     
      69              72 :     bool NextLine()
      70                 :     {
      71              72 :       if (mNext >= mLimit)
      72               5 :         return false;
      73                 :       
      74              67 :       mCur = mNext;
      75              67 :       mLength = 0;
      76                 :       
      77              67 :       char *lastDelimiter = 0;
      78            1783 :       while(mNext < mLimit) {
      79            1716 :         if (IsEOL(*mNext)) {
      80              67 :           if (lastDelimiter) {
      81              43 :             if (lastDelimiter && *(mNext - 1) != PLUGIN_REGISTRY_END_OF_LINE_MARKER)
      82               0 :               return false;
      83              43 :             *lastDelimiter = '\0';
      84                 :           } else {
      85              24 :             *mNext = '\0';
      86                 :           }
      87                 : 
      88              81 :           for (++mNext; mNext < mLimit; ++mNext) {
      89              76 :             if (!IsEOL(*mNext))
      90              62 :               break;
      91                 :           }
      92              67 :           return true;
      93                 :         }
      94            1649 :         if (*mNext == PLUGIN_REGISTRY_FIELD_DELIMITER)
      95              77 :           lastDelimiter = mNext;
      96            1649 :         ++mNext;
      97            1649 :         ++mLength;
      98                 :       }
      99               0 :       return false;        
     100                 :     }
     101                 : 
     102              33 :     int ParseLine(char** chunks, int maxChunks)
     103                 :     {
     104              33 :       NS_ASSERTION(mCur && maxChunks && chunks, "bad call to ParseLine");
     105              33 :       int found = 0;
     106              33 :       chunks[found++] = mCur;
     107                 :       
     108              33 :       if (found < maxChunks) {
     109             315 :         for (char* cur = mCur; *cur; cur++) {
     110             315 :           if (*cur == PLUGIN_REGISTRY_FIELD_DELIMITER) {
     111              34 :             *cur = 0;
     112              34 :             chunks[found++] = cur + 1;
     113              34 :             if (found == maxChunks)
     114              19 :               break;
     115                 :           }
     116                 :         }
     117                 :       }
     118              33 :       return found;
     119                 :     }
     120                 : 
     121              79 :     char*       LinePtr() { return mCur; }
     122              14 :     PRUint32    LineLength() { return mLength; }    
     123                 : 
     124            1792 :     bool        IsEOL(char c) {return c == '\n' || c == '\r';}
     125                 : 
     126                 :     char*       mBase;
     127                 :   private:
     128                 :     char*       mCur;
     129                 :     PRUint32    mLength;
     130                 :     char*       mNext;
     131                 :     char*       mLimit;
     132                 : };
     133                 : 
     134                 : #endif

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