xmloff/source/xforms/TokenContext.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include "TokenContext.hxx"
  21 #include <xmloff/xmltkmap.hxx>
  22 #include <xmloff/xmlimp.hxx>
  23 #include <xmloff/nmspmap.hxx>
  24 #include "xmloff/xmlerror.hxx"
  25
  26 #include <tools/debug.hxx>
  27
  28 using com::sun::star::uno::Reference;
  29 using com::sun::star::xml::sax::XAttributeList;
  30
  31
  32 struct SvXMLTokenMapEntry aEmptyMap[1] =
  33 {
  34     XML_TOKEN_MAP_END
  35 };
  36
  37
  38 TokenContext::TokenContext( SvXMLImport& rImport,
  39                             sal_uInt16 nPrefix,
  40                             const OUString& rLocalName,
  41                             const SvXMLTokenMapEntry* pAttributes,
  42                             const SvXMLTokenMapEntry* pChildren )
  43     : SvXMLImportContext( rImport, nPrefix, rLocalName ),
  44       mpAttributes( pAttributes ),
  45       mpChildren( pChildren )
  46 {
  47 }
  48
  49 TokenContext::~TokenContext()
  50 {
  51 }
  52
  53 void TokenContext::StartElement(
  54     const Reference<XAttributeList>& xAttributeList )
  55 {
  56     // iterate over attributes
  57     // - if in map: call HandleAttribute
  58     // - xmlns:... : ignore
  59     // - other: warning
  60     DBG_ASSERT( mpAttributes != NULL, "no token map for attributes" );
  61     SvXMLTokenMap aMap( mpAttributes );
  62
  63     sal_Int16 nCount = xAttributeList->getLength();
  64     for( sal_Int16 i = 0; i < nCount; i++ )
  65     {
  66         // get key/local-name pair from namespace map
  67         OUString sLocalName;
  68         sal_uInt16 nPrefix = GetImport().GetNamespaceMap().
  69             GetKeyByAttrName( xAttributeList->getNameByIndex(i), &sLocalName );
  70
  71         // get token from token map
  72         sal_uInt16 nToken = aMap.Get( nPrefix, sLocalName );
  73
  74         // and the value...
  75         const OUString& rValue = xAttributeList->getValueByIndex(i);
  76
  77         if( nToken != XML_TOK_UNKNOWN )
  78         {
  79             HandleAttribute( nToken, rValue );
  80         }
  81         else if( nPrefix != XML_NAMESPACE_XMLNS )
  82         {
  83             // error handling, for all attribute that are not
  84             // namespace declarations
  85             GetImport().SetError( XMLERROR_UNKNOWN_ATTRIBUTE,
  86                                   sLocalName, rValue);
  87         }
  88     }
  89 }
  90
  91 SvXMLImportContext* TokenContext::CreateChildContext(
  92     sal_uInt16 nPrefix,
  93     const OUString& rLocalName,
  94     const Reference<XAttributeList>& xAttrList )
  95 {
  96     // call HandleChild for elements in token map. Ignore other content.
  97
  98     SvXMLImportContext* pContext = NULL;
  99
 100     DBG_ASSERT( mpChildren != NULL, "no token map for child elements" );
 101     SvXMLTokenMap aMap( mpChildren );
 102     sal_uInt16 nToken = aMap.Get( nPrefix, rLocalName );
 103     if( nToken != XML_TOK_UNKNOWN )
 104     {
 105         // call handle child, and pass down arguments
 106         pContext = HandleChild( nToken, nPrefix, rLocalName, xAttrList );
 107     }
 108
 109     // error handling: create default context and generate warning
 110     if( pContext == NULL )
 111     {
 112         GetImport().SetError( XMLERROR_UNKNOWN_ELEMENT, rLocalName );
 113         pContext = new SvXMLImportContext( GetImport(), nPrefix, rLocalName );
 114     }
 115     return pContext;
 116 }
 117
 118 static bool lcl_IsWhiteSpace( sal_Unicode c )
 119 {
 120     return c == sal_Unicode(  ' ' )
 121         || c == sal_Unicode( 0x09 )
 122         || c == sal_Unicode( 0x0A )
 123         || c == sal_Unicode( 0x0D );
 124 }
 125
 126 void TokenContext::Characters( const OUString& rCharacters )
 127 {
 128     // get iterators for string data
 129     const sal_Unicode* pBegin = rCharacters.getStr();
 130     const sal_Unicode* pEnd = &( pBegin[ rCharacters.getLength() ] );
 131
 132     // raise error if non-whitespace character is found
 133     if( ::std::find_if( pBegin, pEnd, ::std::not1(::std::ptr_fun(lcl_IsWhiteSpace)) ) != pEnd )
 134         GetImport().SetError( XMLERROR_UNKNOWN_CHARACTERS, rCharacters );
 135 }
 136
 137 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */