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 <sal/config.h>
  21 #include <sal/log.hxx>
  22
  23 #include "TokenContext.hxx"
  24 #include <xmloff/xmltkmap.hxx>
  25 #include <xmloff/xmlimp.hxx>
  26 #include <xmloff/nmspmap.hxx>
  27 #include <xmloff/xmlerror.hxx>
  28
  29 #include <algorithm>
  30
  31 using com::sun::star::uno::Reference;
  32 using com::sun::star::xml::sax::XAttributeList;
  33
  34 const SvXMLTokenMapEntry aEmptyMap[1] =
  35 {
  36     XML_TOKEN_MAP_END
  37 };
  38
  39 TokenContext::TokenContext( SvXMLImport& rImport,
  40                             sal_uInt16 nPrefix,
  41                             const OUString& rLocalName,
  42                             const SvXMLTokenMapEntry* pAttributes,
  43                             const SvXMLTokenMapEntry* pChildren )
  44     : SvXMLImportContext( rImport, nPrefix, rLocalName ),
  45       mpAttributes( pAttributes ),
  46       mpChildren( pChildren )
  47 {
  48 }
  49
  50 void TokenContext::StartElement(
  51     const Reference<XAttributeList>& xAttributeList )
  52 {
  53     // iterate over attributes
  54     // - if in map: call HandleAttribute
  55     // - xmlns:... : ignore
  56     // - other: warning
  57     SAL_WARN_IF( mpAttributes == nullptr, "xmloff", "no token map for attributes" );
  58     SvXMLTokenMap aMap( mpAttributes );
  59
  60     sal_Int16 nCount = xAttributeList->getLength();
  61     for( sal_Int16 i = 0; i < nCount; i++ )
  62     {
  63         // get key/local-name pair from namespace map
  64         OUString sLocalName;
  65         sal_uInt16 nPrefix = GetImport().GetNamespaceMap().
  66             GetKeyByAttrName( xAttributeList->getNameByIndex(i), &sLocalName );
  67
  68         // get token from token map
  69         sal_uInt16 nToken = aMap.Get( nPrefix, sLocalName );
  70
  71         // and the value...
  72         const OUString& rValue = xAttributeList->getValueByIndex(i);
  73
  74         if( nToken != XML_TOK_UNKNOWN )
  75         {
  76             HandleAttribute( nToken, rValue );
  77         }
  78         else if( nPrefix != XML_NAMESPACE_XMLNS )
  79         {
  80             // error handling, for all attribute that are not
  81             // namespace declarations
  82             GetImport().SetError( XMLERROR_UNKNOWN_ATTRIBUTE,
  83                                   sLocalName, rValue);
  84         }
  85     }
  86 }
  87
  88 SvXMLImportContextRef TokenContext::CreateChildContext(
  89     sal_uInt16 nPrefix,
  90     const OUString& rLocalName,
  91     const Reference<XAttributeList>& xAttrList )
  92 {
  93     // call HandleChild for elements in token map. Ignore other content.
  94
  95     SvXMLImportContext* pContext = nullptr;
  96
  97     SAL_WARN_IF( mpChildren == nullptr, "xmloff", "no token map for child elements" );
  98     SvXMLTokenMap aMap( mpChildren );
  99     sal_uInt16 nToken = aMap.Get( nPrefix, rLocalName );
 100     if( nToken != XML_TOK_UNKNOWN )
 101     {
 102         // call handle child, and pass down arguments
 103         pContext = HandleChild( nToken, nPrefix, rLocalName, xAttrList );
 104     }
 105
 106     // error handling: create default context and generate warning
 107     if( pContext == nullptr )
 108     {
 109         GetImport().SetError( XMLERROR_UNKNOWN_ELEMENT, rLocalName );
 110         pContext = new SvXMLImportContext( GetImport(), nPrefix, rLocalName );
 111     }
 112     return pContext;
 113 }
 114
 115 static bool lcl_IsWhiteSpace( sal_Unicode c )
 116 {
 117     return c == ' '
 118         || c == u'\x0009'
 119         || c == u'\x000A'
 120         || c == u'\x000D';
 121 }
 122
 123 void TokenContext::Characters( const OUString& rCharacters )
 124 {
 125     // get iterators for string data
 126     const sal_Unicode* pBegin = rCharacters.getStr();
 127     const sal_Unicode* pEnd = &( pBegin[ rCharacters.getLength() ] );
 128
 129     // raise error if non-whitespace character is found
 130     if( !::std::all_of( pBegin, pEnd, lcl_IsWhiteSpace ) )
 131         GetImport().SetError( XMLERROR_UNKNOWN_CHARACTERS, rCharacters );
 132 }
 133
 134 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */