forms/source/xforms/xmlhelper.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
  21 #include "xmlhelper.hxx"
  22
  23 #include <rtl/ustring.hxx>
  24 #include <com/sun/star/uno/Reference.hxx>
  25 #include <com/sun/star/xml/dom/DocumentBuilder.hpp>
  26 #include <comphelper/processfactory.hxx>
  27
  28 using com::sun::star::uno::Reference;
  29 using com::sun::star::container::XNameContainer;
  30 using com::sun::star::xml::dom::DocumentBuilder;
  31 using com::sun::star::xml::dom::XDocumentBuilder;
  32
  33
  34 // determine valid XML name
  35
  36
  37 // character class:
  38 // 1: NameStartChar
  39 // 2: NameChar
  40 // 4: NCNameStartChar
  41 // 8: NCNameChar
  42 static sal_uInt8 lcl_getCharClass( sal_Unicode c )
  43 {
  44     sal_uInt8 nClass = 0;
  45
  46     // NameStartChar
  47     if( (c >= 'A' && c <= 'Z')
  48         || c == '_'
  49         || (c >=    'a' && c <=    'z')
  50         || (c >= 0x00C0 && c <= 0x00D6)
  51         || (c >= 0x00D8 && c <= 0x00F6)
  52         || (c >= 0x00F8 && c <= 0x02FF)
  53         || (c >= 0x0370 && c <= 0x037D)
  54         || (c >= 0x037F && c <= 0x1FFF)
  55         || (c >= 0x200C && c <= 0x200D)
  56         || (c >= 0x2070 && c <= 0x218F)
  57         || (c >= 0x2C00 && c <= 0x2FEF)
  58         || (c >= 0x3001 && c <= 0xD7FF)
  59         || (c >= 0xF900 && c <= 0xFDCF)
  60         || (c >= 0xFDF0 && c <= 0xFFFD)
  61
  62         // surrogates
  63         || (c >= 0xD800 && c <= 0xDBFF)
  64         || (c >= 0xDC00 && c <= 0xDFFF) )
  65     {
  66         nClass = 15;
  67     }
  68     else if( c == '-'
  69              || c == '.'
  70              || (c >= '0' && c <= '9')
  71              || (c == 0x00B7)
  72              || (c >= 0x0300 && c <= 0x036F)
  73              || (c >= 0x203F && c <= 0x2040) )
  74     {
  75         nClass = 10;
  76     }
  77     else if( c == ':' )
  78     {
  79         nClass = 3;
  80     }
  81
  82     return nClass;
  83 }
  84
  85 bool isValidQName( const OUString& sName,
  86                    const Reference<XNameContainer>& /*xNamespaces*/ )
  87 {
  88     sal_Int32 nLength = sName.getLength();
  89     const sal_Unicode* pName = sName.getStr();
  90
  91     bool bRet = false;
  92     sal_Int32 nColon = 0;
  93     if( nLength > 0 )
  94     {
  95         bRet = ( ( lcl_getCharClass( pName[0] ) & 4 ) != 0 );
  96         for( sal_Int32 n = 1; n < nLength; n++ )
  97         {
  98             sal_uInt8 nClass = lcl_getCharClass( pName[n] );
  99             bRet &= ( ( nClass & 2 ) != 0 );
 100             if( nClass == 3 )
 101                 nColon++;
 102         }
 103     }
 104     if( nColon > 1 )
 105         bRet = false;
 106
 107     return bRet;
 108 }
 109
 110 bool isValidPrefixName( const OUString& sName,
 111                         const Reference<XNameContainer>& /*xNamespaces*/ )
 112 {
 113     sal_Int32 nLength = sName.getLength();
 114     const sal_Unicode* pName = sName.getStr();
 115     bool bRet = false;
 116
 117     if( nLength > 0 )
 118     {
 119         bRet = ( ( lcl_getCharClass( pName[0] ) & 4 ) != 0 );
 120         for( sal_Int32 n = 1; n < nLength; n++ )
 121             bRet &= ( ( lcl_getCharClass( pName[n] ) & 8 ) != 0 );
 122     }
 123
 124     return bRet;
 125 }
 126
 127 Reference<XDocumentBuilder> getDocumentBuilder()
 128 {
 129     Reference<XDocumentBuilder> xBuilder(DocumentBuilder::create(::comphelper::getProcessComponentContext()));
 130     return xBuilder;
 131 }
 132
 133 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */