pegasus/src/Pegasus/WQL/WQLParser.cpp - diff

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Diff for /pegasus/src/Pegasus/WQL/WQLParser.cpp between version 1.1 and 1.1.2.8

version 1.1, 2001/11/30 02:53:56

version 1.1.2.8, 2001/12/07 00:37:56

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//%/////////////////////////////////////////////////////////////////////////////

// The Open Group, Tivoli Systems

// Permission is hereby granted, free of charge, to any person obtaining a copy

// of this software and associated documentation files (the "Software"), to

// deal in the Software without restriction, including without limitation the

// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or

// sell copies of the Software, and to permit persons to whom the Software is

// furnished to do so, subject to the following conditions:

// THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN

// ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED

// "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT

// LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR

// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT

// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN

// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION

// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

//==============================================================================

// Author: Mike Brasher (mbrasher@bmc.com)

// Modified By:

//%/////////////////////////////////////////////////////////////////////////////

#include <Pegasus/Common/Config.h>

#include <Pegasus/Common/Exception.h>

#include <iostream>

#include "WQLParser.h"

#include "WQLParserState.h"

PEGASUS_USING_STD;

extern int WQL_parse();

PEGASUS_NAMESPACE_BEGIN

WQLParserState* globalParserState = 0;

void WQLParser::parse(

const Array<Sint8>& text,

WQLSelectStatement& statement)

{

if (text.size() == 0 || text[text.size() - 1] != '\0')

throw MissingNullTerminator();

globalParserState = new WQLParserState;

globalParserState->error = false;

globalParserState->text = text;

globalParserState->offset = 0;

globalParserState->statement = &statement;

WQL_parse();

if (globalParserState->error)

{

String errorMessage = globalParserState->errorMessage;

cleanup();

delete globalParserState;

throw ParseError(errorMessage);

}

cleanup();

delete globalParserState;

}

void WQLParser::cleanup()

{

Array<char*>& arr = globalParserState->outstandingStrings;

for (Uint32 i = 0, n = arr.size(); i < n; i++)

delete [] arr[i];

arr.clear();

}

PEGASUS_NAMESPACE_END

PEGASUS_USING_PEGASUS;

int WQL_error(char* errorMessage)

{

globalParserState->error = true;

globalParserState->errorMessage = errorMessage;

return -1;

}

int WQLInput(char* buffer, int& numRead, int numRequested)

{

// Be sure to account for the null terminator (the size of the text will

// be one or more; this is fixed checked beforehand by WQLParser::parse()).

int remaining =

globalParserState->text.size() - globalParserState->offset - 1;

if (remaining == 0)

{

numRead = 0;

return 0;

}

if (remaining < numRequested)

numRequested = remaining;

memcpy(buffer,

globalParserState->text.getData() + globalParserState->offset,

numRequested);

globalParserState->offset += numRequested;

numRead = numRequested;

return numRead;

}

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