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Diffstat (limited to '')
| -rw-r--r-- | ucb/source/ucp/webdav-neon/LinkSequence.cxx | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/ucb/source/ucp/webdav-neon/LinkSequence.cxx b/ucb/source/ucp/webdav-neon/LinkSequence.cxx new file mode 100644 index 000000000..ea49352d9 --- /dev/null +++ b/ucb/source/ucp/webdav-neon/LinkSequence.cxx @@ -0,0 +1,214 @@ +/* -*- 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: */ |