OW_XMLUnescape.cpp

Go to the documentation of this file.

/* Generated by re2c 0.9.10.dev on Fri Aug 26 11:59:20 2005 */
#line 1 "OW_XMLUnescape.re"
/*******************************************************************************
* Copyright (C) 2001-2004 Vintela, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
*  - Redistributions of source code must retain the above copyright notice,
*    this list of conditions and the following disclaimer.
*
*  - Redistributions in binary form must reproduce the above copyright notice,
*    this list of conditions and the following disclaimer in the documentation
*    and/or other materials provided with the distribution.
*
*  - Neither the name of Vintela, Inc. nor the names of its
*    contributors may be used to endorse or promote products derived from this
*    software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL Vintela, Inc. OR THE CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*******************************************************************************/

/* a simple lexical scanner to escape xml */
#include "OW_config.h"
#include "OW_XMLUnescape.hpp"
#include "OW_StringBuffer.hpp"
#include "OW_XMLParseException.hpp"
#include "OW_Format.hpp"
#include <limits.h> // for CHAR_MAX
#include <stdlib.h> // for strtol

namespace OW_NAMESPACE
{

String XMLUnescape(const char* escapedText, unsigned len)
{
   StringBuffer rval(len);
   const char* begin = escapedText;
   const char* q;
   const char* thisTokStart = escapedText;
   #define YYCTYPE char
   #define YYCURSOR        begin
   #define YYLIMIT         begin
   #define YYMARKER        q
   #define YYFILL(n)
start:
   
#line 63 "OW_XMLUnescape.cpp"
{
   YYCTYPE yych;
   unsigned int yyaccept;
   goto yy0;
   ++YYCURSOR;
yy0:
   if((YYLIMIT - YYCURSOR) < 6) YYFILL(6);
   yych = *YYCURSOR;
   if(yych <= 0x00)  goto yy5;
   if(yych != '&')   goto yy4;
   goto yy2;
yy2:  yyaccept = 0;
   yych = *(YYMARKER = ++YYCURSOR);
   if(yych <= 'f'){
      if(yych <= '#'){
         if(yych >= '#')   goto yy7;
         goto yy3;
      } else {
         if(yych == 'a')   goto yy9;
         goto yy3;
      }
   } else {
      if(yych <= 'l'){
         if(yych <= 'g')   goto yy12;
         if(yych >= 'l')   goto yy11;
         goto yy3;
      } else {
         if(yych == 'q')   goto yy10;
         goto yy3;
      }
   }
yy3:
#line 92 "OW_XMLUnescape.re"
{ rval += *(YYCURSOR-1); thisTokStart = YYCURSOR; goto start; }
#line 98 "OW_XMLUnescape.cpp"
yy4:  yych = *++YYCURSOR;
   goto yy3;
yy5:  ++YYCURSOR;
   goto yy6;
yy6:
#line 93 "OW_XMLUnescape.re"
{ return rval.releaseString(); }
#line 106 "OW_XMLUnescape.cpp"
yy7:  yych = *++YYCURSOR;
   if(yych <= '/')   goto yy8;
   if(yych <= '9')   goto yy34;
   if(yych == 'x')   goto yy33;
   goto yy8;
yy8:  YYCURSOR = YYMARKER;
   switch(yyaccept){
   case 0:  goto yy3;
   }
yy9:  yych = *++YYCURSOR;
   if(yych == 'm')   goto yy24;
   if(yych == 'p')   goto yy25;
   goto yy8;
yy10: yych = *++YYCURSOR;
   if(yych == 'u')   goto yy19;
   goto yy8;
yy11: yych = *++YYCURSOR;
   if(yych == 't')   goto yy16;
   goto yy8;
yy12: yych = *++YYCURSOR;
   if(yych != 't')   goto yy8;
   goto yy13;
yy13: yych = *++YYCURSOR;
   if(yych != ';')   goto yy8;
   goto yy14;
yy14: ++YYCURSOR;
   goto yy15;
yy15:
#line 65 "OW_XMLUnescape.re"
{ rval += '>'; thisTokStart = YYCURSOR; goto start; }
#line 137 "OW_XMLUnescape.cpp"
yy16: yych = *++YYCURSOR;
   if(yych != ';')   goto yy8;
   goto yy17;
yy17: ++YYCURSOR;
   goto yy18;
yy18:
#line 66 "OW_XMLUnescape.re"
{ rval += '<'; thisTokStart = YYCURSOR; goto start; }
#line 146 "OW_XMLUnescape.cpp"
yy19: yych = *++YYCURSOR;
   if(yych != 'o')   goto yy8;
   goto yy20;
yy20: yych = *++YYCURSOR;
   if(yych != 't')   goto yy8;
   goto yy21;
yy21: yych = *++YYCURSOR;
   if(yych != ';')   goto yy8;
   goto yy22;
yy22: ++YYCURSOR;
   goto yy23;
yy23:
#line 68 "OW_XMLUnescape.re"
{ rval += '\"'; thisTokStart = YYCURSOR; goto start; }
#line 161 "OW_XMLUnescape.cpp"
yy24: yych = *++YYCURSOR;
   if(yych == 'p')   goto yy30;
   goto yy8;
yy25: yych = *++YYCURSOR;
   if(yych != 'o')   goto yy8;
   goto yy26;
yy26: yych = *++YYCURSOR;
   if(yych != 's')   goto yy8;
   goto yy27;
yy27: yych = *++YYCURSOR;
   if(yych != ';')   goto yy8;
   goto yy28;
yy28: ++YYCURSOR;
   goto yy29;
yy29:
#line 69 "OW_XMLUnescape.re"
{ rval += '\''; thisTokStart = YYCURSOR; goto start; }
#line 179 "OW_XMLUnescape.cpp"
yy30: yych = *++YYCURSOR;
   if(yych != ';')   goto yy8;
   goto yy31;
yy31: ++YYCURSOR;
   goto yy32;
yy32:
#line 67 "OW_XMLUnescape.re"
{ rval += '&'; thisTokStart = YYCURSOR; goto start; }
#line 188 "OW_XMLUnescape.cpp"
yy33: yych = *++YYCURSOR;
   if(yych == ';')   goto yy8;
   goto yy39;
yy34: ++YYCURSOR;
   if(YYLIMIT == YYCURSOR) YYFILL(1);
   yych = *YYCURSOR;
   goto yy35;
yy35: if(yych <= '/')   goto yy8;
   if(yych <= '9')   goto yy34;
   if(yych != ';')   goto yy8;
   goto yy36;
yy36: ++YYCURSOR;
   goto yy37;
yy37:
#line 82 "OW_XMLUnescape.re"
{
      unsigned long lval = strtoul( thisTokStart + 2, NULL, 10 );
      if (lval > CHAR_MAX)
      {
         OW_THROWXML(XMLParseException::MALFORMED_REFERENCE, Format("XML escape code in unsupported range: %1", YYCURSOR - 1).c_str());
      }
      char val = lval;
      rval += val;
      thisTokStart = YYCURSOR; goto start;
   }
#line 214 "OW_XMLUnescape.cpp"
yy38: ++YYCURSOR;
   if(YYLIMIT == YYCURSOR) YYFILL(1);
   yych = *YYCURSOR;
   goto yy39;
yy39: if(yych <= ';'){
      if(yych <= '/')   goto yy8;
      if(yych <= '9')   goto yy38;
      if(yych <= ':')   goto yy8;
      goto yy40;
   } else {
      if(yych <= 'F'){
         if(yych <= '@')   goto yy8;
         goto yy38;
      } else {
         if(yych <= '`')   goto yy8;
         if(yych <= 'f')   goto yy38;
         goto yy8;
      }
   }
yy40: ++YYCURSOR;
   goto yy41;
yy41:
#line 71 "OW_XMLUnescape.re"
{
      unsigned long lval = strtoul( thisTokStart + 3, NULL, 16 );
      if (lval > CHAR_MAX)
      {
         OW_THROWXML(XMLParseException::MALFORMED_REFERENCE, Format("XML escape code in unsupported range: %1", YYCURSOR - 1).c_str());
      }
      char val = lval;
      rval += val;
      thisTokStart = YYCURSOR; goto start;
   }
#line 248 "OW_XMLUnescape.cpp"
}
#line 94 "OW_XMLUnescape.re"


   return rval.releaseString();
}

} // end namespace OpenWBEM

---