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/*
* Copyright (c) 2003, 2004 Michael Pyne <michael.pyne@kdemail.net>
*
* This software 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 option) any later version.
*
* This software 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 library; see the file COPYING.
* If not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <qiodevice.h>
#include "bytetape.h"
#include "blist.h"
#include "bdict.h"
#include "bstring.h"
#include "bint.h"
BList::BList (ByteTape &tape)
: m_valid(false), m_array()
{
init (tape);
}
BList::BList (QByteArray &dict, unsigned int start)
: m_valid(false), m_array()
{
ByteTape tape (dict, start);
init (tape);
}
void BList::init (ByteTape &tape)
{
BBase *temp;
if (*tape != 'l')
return;
tape++;
/* Repeat circling over the string until the list is over */
while (*tape != 'e')
{
switch (*tape)
{
case 'd':
temp = new BDict (tape);
break;
case 'l': /* This element is a list */
temp = new BList (tape);
break;
case 'i': /* This element is an int */
temp = new BInt (tape);
break;
default: /* Maybe a string? */
temp = new BString (tape);
}
if (!temp || !temp->isValid())
return; // Invalid list element
m_array.append (temp);
}
m_valid = true;
// Only way out is to detect 'e', so we need to increment tape past that.
tape++;
}
BList::~BList()
{
BBaseVectorIterator iter;
for (iter = begin(); iter != end(); ++iter)
delete *iter;
}
BBase* BList::index (unsigned int i)
{
if (i >= count())
return 0;
else
return m_array[i];
}
BList * BList::indexList (unsigned int i)
{
BBase *base = index(i);
if (base && base->type_id() == bList)
return dynamic_cast<BList*>(base);
return 0;
}
BInt * BList::indexInt (unsigned int i)
{
BBase *base = index(i);
if (base && base->type_id() == bInt)
return dynamic_cast<BInt*>(base);
return 0;
}
BDict * BList::indexDict (unsigned int i)
{
BBase *base = index(i);
if (base && base->type_id() == bDict)
return dynamic_cast<BDict*>(base);
return 0;
}
BString * BList::indexStr (unsigned int i)
{
BBase *base = index(i);
if (base && base->type_id() == bString)
return dynamic_cast<BString*>(base);
return 0;
}
bool BList::writeToDevice(QIODevice &device)
{
if (!m_valid)
return false;
const char *l_str = "l";
const char *e_str = "e";
Q_LONG written = 0, result = 0;
written = device.writeBlock (l_str, 1);
while (written < 1)
{
if (written < 0 || result < 0)
return false;
result = device.writeBlock (l_str, 1);
written += result;
}
BBaseVectorIterator iter;
for (iter = begin(); iter != end(); ++iter)
{
if (!((*iter)->writeToDevice (device)))
return false;
}
written = device.writeBlock (e_str, 1);
while (written < 1)
{
if (written < 0 || result < 0)
return false;
result = device.writeBlock (e_str, 1);
written += result;
}
return true;
}
// vim: set et sw=4 ts=4:
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