connectivity/source/drivers/file/quotedstring.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include "file/quotedstring.hxx"
  21 #include <rtl/ustrbuf.hxx>
  22
  23 namespace connectivity
  24 {
  25
  26     sal_Int32 QuotedTokenizedString::GetTokenCount( sal_Unicode cTok, sal_Unicode cStrDel ) const
  27     {
  28         const sal_Int32 nLen = m_sString.getLength();
  29         if ( !nLen )
  30             return 0;
  31
  32         sal_Int32 nTokCount = 1;
  33         bool bStart = true;     // Are we on the first character in the Token?
  34         bool bInString = false; // Are we WITHIN a (cStrDel delimited) String?
  35
  36         // Search for String-end after the first not matching character
  37         for( sal_Int32 i = 0; i < nLen; ++i )
  38         {
  39             const sal_Unicode cChar = m_sString[i];
  40             if (bStart)
  41             {
  42                 bStart = false;
  43                 // First character a String-Delimiter?
  44                 if ( cChar == cStrDel )
  45                 {
  46                     bInString = true;   // then we are now WITHIN the string!
  47                     continue;           // skip this character!
  48                 }
  49             }
  50
  51             if (bInString)
  52             {
  53                 // when now the String-Delimiter-character occurs...
  54                 if ( cChar == cStrDel )
  55                 {
  56                     if ((i+1 < nLen) && (m_sString[i+1] == cStrDel))
  57                     {
  58                         // double String-Delimiter-character:
  59                         ++i;    // no string-end, skip next character.
  60                     }
  61                     else
  62                     {
  63                         // String-End
  64                         bInString = false;
  65                     }
  66                 }
  67             } // if (bInString)
  68             else
  69             {
  70                 // does the Token-character match, then raise TokCount
  71                 if ( cChar == cTok )
  72                 {
  73                     ++nTokCount;
  74                     bStart = true;
  75                 }
  76             }
  77         }
  78         //OSL_TRACE("QuotedTokenizedString::nTokCount = %d\n", ((OUtoCStr(OUString(nTokCount))) ? (OUtoCStr(OUString(nTokCount))):("NULL")) );
  79
  80         return nTokCount;
  81     }
  82
  83
  84     OUString QuotedTokenizedString::GetTokenSpecial(sal_Int32& nStartPos, sal_Unicode cTok, sal_Unicode cStrDel) const
  85     {
  86         const sal_Int32 nLen = m_sString.getLength();
  87         if ( nLen )
  88         {
  89             bool bInString = (nStartPos < nLen) && (m_sString[nStartPos] == cStrDel);   // are we WITHIN a (cStrDel delimited) String?
  90
  91             // First character a String-Delimiter?
  92             if (bInString )
  93                 ++nStartPos;            // skip this character!
  94             if ( nStartPos >= nLen )
  95                 return OUString();
  96
  97             OUStringBuffer sBuff( nLen - nStartPos + 1 );
  98
  99             // Search until end of string for the first not matching character
 100             for( sal_Int32 i = nStartPos; i < nLen; ++i )
 101             {
 102                 const sal_Unicode cChar = m_sString[i];
 103                 if (bInString)
 104                 {
 105                     // when now the String-Delimiter-character occurs ...
 106                     if ( cChar == cStrDel )
 107                     {
 108                         if ((i+1 < nLen) && (m_sString[i+1] == cStrDel))
 109                         {
 110                             // double String Delimiter-character
 111                             // no end of string, skip next character.
 112                             ++i;
 113                             sBuff.append(m_sString[i]);    // character belongs to Result-String
 114                         }
 115                         else
 116                         {
 117                             //end of String
 118                             bInString = false;
 119                         }
 120                     }
 121                     else
 122                     {
 123                         sBuff.append(cChar);
 124                     }
 125                 }
 126                 else
 127                 {
 128                     // does the Token-sign match, then raise nTok
 129                     if ( cChar == cTok )
 130                     {
 131                         // premature break of loop possible, because we found what we were looking for
 132                         nStartPos = i+1;
 133                         break;
 134                     }
 135                     else
 136                     {
 137                         sBuff.append(cChar);
 138                     }
 139                 }
 140             } // for( sal_Int32 i = nStartPos; i < nLen; ++i )
 141             return sBuff.makeStringAndClear();
 142         }
 143         return OUString();
 144     }
 145 }
 146
 147 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */