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

 68 mike  1.1.2.5     delete globalParserState;

 69 mike  1.1.2.1 }
 70               
 71               PEGASUS_NAMESPACE_END

 72 mike  1.1.2.2 
 73               PEGASUS_USING_PEGASUS;

 74 mike  1.1.2.6 
 75               int WQL_error(char* errorMessage)
 76               {
 77                   globalParserState->error = true;
 78                   globalParserState->errorMessage = errorMessage;
 79                   return -1;
 80               }

 81 mike  1.1.2.2 
 82               int WQLInput(char* buffer, int& numRead, int numRequested)
 83               {

 84 mike  1.1.2.3     //
 85                   // Be sure to account for the null terminator (the size of the text will
 86                   // be one or more; this is fixed checked beforehand by WQLParser::parse()).
 87                   //
 88               

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

 91 mike  1.1.2.2 
 92                   if (remaining == 0)
 93                   {
 94               	numRead = 0;
 95               	return 0;
 96                   }
 97               
 98                   if (remaining < numRequested)
 99               	numRequested = remaining;
100               

101 mike  1.1.2.5     memcpy(buffer, 
102               	globalParserState->text.getData() + globalParserState->offset, 
103               	numRequested);
104               
105                   globalParserState->offset += numRequested;

106 mike  1.1.2.2     numRead = numRequested;
107               
108                   return numRead;
109               }