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//=============================================================================
//
// File : kvi_kvs_treenode_specialcommandfor.cpp
// Created on Fri 07 Nov 2003 11:48:11 by Szymon Stefanek
//
// This file is part of the KVIrc IRC client distribution
// Copyright (C) 2003 Szymon Stefanek <pragma at kvirc dot net>
//
// This program is FREE software. You can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your opinion) any later version.
//
// This program is distributed in the HOPE that it will be USEFUL,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
// See the GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, write to the Free Software Foundation,
// Inc. ,51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
//=============================================================================
#define __KVIRC__
#include "kvi_kvs_treenode_specialcommandfor.h"
#include "kvi_kvs_treenode_expression.h"
#include "kvi_kvs_treenode_instruction.h"
#include "kvi_kvs_runtimecontext.h"
#include "kvi_locale.h"
KviKvsTreeNodeSpecialCommandFor::KviKvsTreeNodeSpecialCommandFor(const TQChar * pLocation,KviKvsTreeNodeInstruction * pInit,KviKvsTreeNodeExpression * pCond,KviKvsTreeNodeInstruction * pUpd,KviKvsTreeNodeInstruction * pLoop)
: KviKvsTreeNodeSpecialCommand(pLocation,"for")
{
m_pInitialization = pInit;
if(m_pInitialization)m_pInitialization->setParent(this);
m_pCondition = pCond;
if(m_pCondition)m_pCondition->setParent(this);
m_pUpdate = pUpd;
if(m_pUpdate)m_pUpdate->setParent(this);
m_pLoop = pLoop;
if(m_pLoop)m_pLoop->setParent(this);
}
KviKvsTreeNodeSpecialCommandFor::~KviKvsTreeNodeSpecialCommandFor()
{
if(m_pInitialization)delete m_pInitialization;
if(m_pCondition)delete m_pCondition;
if(m_pUpdate)delete m_pUpdate;
if(m_pLoop)delete m_pLoop;
}
void KviKvsTreeNodeSpecialCommandFor::contextDescription(TQString &szBuffer)
{
szBuffer = "Special Command \"for\"";
}
void KviKvsTreeNodeSpecialCommandFor::dump(const char * prefix)
{
debug("%s SpecialCommandFor",prefix);
TQString tmp = prefix;
tmp.append(" ");
if(m_pInitialization)m_pInitialization->dump(tmp.utf8().data());
if(m_pCondition)m_pCondition->dump(tmp.utf8().data());
if(m_pUpdate)m_pUpdate->dump(tmp.utf8().data());
if(m_pLoop)m_pLoop->dump(tmp.utf8().data());
}
bool KviKvsTreeNodeSpecialCommandFor::execute(KviKvsRunTimeContext * c)
{
if(m_pInitialization)
{
if(!m_pInitialization->execute(c))
{
// break allowed also here
if(c->error())return false;
if(c->breakPending())
{
c->handleBreak();
return true;
}
return false; // propagate false ret value
}
}
for(;;)
{
if(m_pCondition)
{
KviKvsVariant v;
if(!m_pCondition->evaluateReadOnly(c,&v))return false;
if(!v.asBoolean())return true;
}
if(m_pLoop)
{
if(!m_pLoop->execute(c))
{
if(c->error())return false;
if(c->breakPending())
{
c->handleBreak();
return true;
}
return false; // propagate false ret value
}
}
if(m_pUpdate)
{
if(!m_pUpdate->execute(c))
{
// break allowed also here
if(c->error())return false;
if(c->breakPending())
{
c->handleBreak();
return true;
}
return false; // propagate false ret value
}
}
}
// not reached
return false;
}
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