1 mike  1.1.2.1 //%/////////////////////////////////////////////////////////////////////////////
  2               //
  3               // Copyright (c) 2000, 2001 BMC Software, Hewlett-Packard Company, IBM, 
  4               // The Open Group, Tivoli Systems
  5               //
  6               // Permission is hereby granted, free of charge, to any person obtaining a copy
  7               // of this software and associated documentation files (the "Software"), to 
  8               // deal in the Software without restriction, including without limitation the 
  9               // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 
 10               // sell copies of the Software, and to permit persons to whom the Software is
 11               // furnished to do so, subject to the following conditions:
 12               // 
 13               // THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN 
 14               // ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED
 15               // "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
 16               // LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR 
 17               // PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT 
 18               // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 
 19               // ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 20               // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 21               //
 22 mike  1.1.2.1 //==============================================================================
 23               //
 24               // Author: Mike Brasher (mbrasher@bmc.com)
 25               //
 26               // Modified By:
 27               //
 28               //%/////////////////////////////////////////////////////////////////////////////
 29               
 30               #include <Pegasus/Common/Config.h>

 31 mike  1.1.2.6 #include <Pegasus/Common/Exception.h>

 32 mike  1.1.2.1 #include <iostream>
 33               #include "WQLParser.h"

 34 mike  1.1.2.5 #include "WQLParserState.h"

 35 mike  1.1.2.1 

 36 mike  1.1.2.2 PEGASUS_USING_STD;
 37               
 38               extern int WQL_parse();
 39               

 40 mike  1.1.2.1 PEGASUS_NAMESPACE_BEGIN
 41               

 42 mike  1.1.2.5 WQLParserState* globalParserState = 0;

 43 mike  1.1.2.1 

 44 mike  1.1.2.5 void WQLParser::parse(
 45                   const Array<Sint8>& text,
 46                   WQLSelectStatement& statement)

 47 mike  1.1.2.2 {

 48 mike  1.1.2.3     // ATTN: raise error here:
 49               
 50                   if (text.size() == 0 || text[text.size() - 1] != '\0')

 51 mike  1.1.2.6 	throw MissingNullTerminator();

 52 mike  1.1.2.3 

 53 mike  1.1.2.5     globalParserState = new WQLParserState;
 54                   globalParserState->error = false;
 55                   globalParserState->text = text;
 56                   globalParserState->offset = 0;
 57                   globalParserState->statement = &statement;
 58               

 59 mike  1.1.2.2     WQL_parse();

 60 mike  1.1.2.5 

 61 mike  1.1.2.6     if (globalParserState->error)
 62                   {
 63               	String errorMessage = globalParserState->errorMessage;

 64 mike  1.1.2.7 	cleanup();

 65 mike  1.1.2.6 	delete globalParserState;
 66               	throw ParseError(errorMessage);
 67                   }
 68               

 69 mike  1.1.2.7     cleanup();

 70 mike  1.1.2.5     delete globalParserState;

 71 mike  1.1.2.7 }
 72               
 73               void WQLParser::cleanup()
 74               {
 75                   Array<char*>& arr = globalParserState->outstandingStrings;
 76               
 77                   for (Uint32 i = 0, n = arr.size(); i < n; i++)
 78               	delete [] arr[i];
 79               
 80                   arr.clear();

 81 mike  1.1.2.1 }
 82               
 83               PEGASUS_NAMESPACE_END

 84 mike  1.1.2.2 
 85               PEGASUS_USING_PEGASUS;

 86 mike  1.1.2.6 
 87               int WQL_error(char* errorMessage)
 88               {
 89                   globalParserState->error = true;
 90                   globalParserState->errorMessage = errorMessage;
 91                   return -1;
 92               }

 93 mike  1.1.2.2 
 94               int WQLInput(char* buffer, int& numRead, int numRequested)
 95               {

 96 mike  1.1.2.3     //
 97                   // Be sure to account for the null terminator (the size of the text will
 98                   // be one or more; this is fixed checked beforehand by WQLParser::parse()).
 99                   //
100               

101 mike  1.1.2.5     int remaining = 
102               	globalParserState->text.size() - globalParserState->offset - 1;

103 mike  1.1.2.2 
104                   if (remaining == 0)
105                   {
106               	numRead = 0;
107               	return 0;
108                   }
109               
110                   if (remaining < numRequested)
111               	numRequested = remaining;
112               

113 mike  1.1.2.5     memcpy(buffer, 
114               	globalParserState->text.getData() + globalParserState->offset, 
115               	numRequested);
116               
117                   globalParserState->offset += numRequested;

118 mike  1.1.2.2     numRead = numRequested;
119               
120                   return numRead;
121               }