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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org 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 Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#include <config_lgpl.h>
#include <string.h>
#include <ne_xml.h>
#include <memory>
#include "LinkSequence.hxx"
using namespace webdav_ucp;
using namespace com::sun::star;
namespace {
struct LinkSequenceParseContext
{
std::unique_ptr<ucb::Link> pLink;
bool hasSource;
bool hasDestination;
LinkSequenceParseContext()
: hasSource( false ), hasDestination( false ) {}
};
}
#define STATE_TOP (1)
#define STATE_LINK (STATE_TOP)
#define STATE_DST (STATE_TOP + 1)
#define STATE_SRC (STATE_TOP + 2)
extern "C" {
static int LinkSequence_startelement_callback(
void *,
int parent,
const char * /*nspace*/,
const char *name,
const char ** )
{
if ( name != nullptr )
{
switch ( parent )
{
case NE_XML_STATEROOT:
if ( strcmp( name, "link" ) == 0 )
return STATE_LINK;
break;
case STATE_LINK:
if ( strcmp( name, "dst" ) == 0 )
return STATE_DST;
else if ( strcmp( name, "src" ) == 0 )
return STATE_SRC;
break;
}
}
return NE_XML_DECLINE;
}
static int LinkSequence_chardata_callback(
void *userdata,
int state,
const char *buf,
size_t len )
{
LinkSequenceParseContext * pCtx
= static_cast< LinkSequenceParseContext * >( userdata );
if ( !pCtx->pLink )
pCtx->pLink.reset( new ucb::Link );
switch ( state )
{
case STATE_DST:
pCtx->pLink->Destination
= OUString( buf, len, RTL_TEXTENCODING_ASCII_US );
pCtx->hasDestination = true;
break;
case STATE_SRC:
pCtx->pLink->Source
= OUString( buf, len, RTL_TEXTENCODING_ASCII_US );
pCtx->hasSource = true;
break;
}
return 0; // zero to continue, non-zero to abort parsing
}
static int LinkSequence_endelement_callback(
void *userdata,
int state,
const char *,
const char * )
{
LinkSequenceParseContext * pCtx
= static_cast< LinkSequenceParseContext * >( userdata );
if ( !pCtx->pLink )
pCtx->pLink.reset( new ucb::Link );
switch ( state )
{
case STATE_LINK:
if ( !pCtx->hasDestination || !pCtx->hasSource )
return 1; // abort
break;
}
return 0; // zero to continue, non-zero to abort parsing
}
}
// static
bool LinkSequence::createFromXML( const OString & rInData,
uno::Sequence< ucb::Link > & rOutData )
{
const sal_Int32 TOKEN_LENGTH = 7; // </link>
bool success = true;
// rInData may contain multiple <link>...</link> tags.
sal_Int32 nCount = 0;
sal_Int32 nStart = 0;
sal_Int32 nEnd = rInData.indexOf( "</link>" );
while ( nEnd > -1 )
{
ne_xml_parser * parser = ne_xml_create();
if ( !parser )
{
success = false;
break;
}
LinkSequenceParseContext aCtx;
ne_xml_push_handler( parser,
LinkSequence_startelement_callback,
LinkSequence_chardata_callback,
LinkSequence_endelement_callback,
&aCtx );
ne_xml_parse( parser,
rInData.getStr() + nStart,
nEnd - nStart + TOKEN_LENGTH );
success = !ne_xml_failed( parser );
ne_xml_destroy( parser );
if ( !success )
break;
if ( aCtx.pLink )
{
nCount++;
if ( nCount > rOutData.getLength() )
rOutData.realloc( rOutData.getLength() + 1 );
rOutData[ nCount - 1 ] = *aCtx.pLink;
}
nStart = nEnd + TOKEN_LENGTH;
nEnd = rInData.indexOf( "</link>", nStart );
}
return success;
}
// static
bool LinkSequence::toXML( const uno::Sequence< ucb::Link > & rInData,
OUString & rOutData )
{
// <link><src>value</src><dst>value</dst></link><link><src>...
for ( const auto& rLink : rInData )
{
rOutData += "<link><src>";
rOutData += rLink.Source;
rOutData += "</src><dst>";
rOutData += rLink.Destination;
rOutData += "</dst></link>";
}
return rInData.hasElements();
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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