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 "unohelper.hxx"
  24 #include <rtl/ustring.hxx>
  25 #include <com/sun/star/uno/Reference.hxx>
  26 #include <com/sun/star/xml/dom/DocumentBuilder.hpp>
  27 #include <comphelper/processfactory.hxx>
  28
  29 using com::sun::star::uno::Reference;
  30 using com::sun::star::uno::UNO_QUERY_THROW;
  31 using com::sun::star::container::XNameContainer;
  32 using com::sun::star::xml::dom::DocumentBuilder;
  33 using com::sun::star::xml::dom::XDocumentBuilder;
  34
  35
  36
  37 // determine valid XML name
  38
  39
  40 // character class:
  41 // 1: NameStartChar
  42 // 2: NameChar
  43 // 4: NCNameStartChar
  44 // 8: NCNameChar
  45 static inline sal_uInt8 lcl_getCharClass( sal_Unicode c )
  46 {
  47     sal_uInt8 nClass = 0;
  48
  49     // NameStartChar
  50     if( (c >= 'A' && c <= 'Z')
  51         || c == '_'
  52         || (c >=    'a' && c <=    'z')
  53         || (c >= 0x00C0 && c <= 0x00D6)
  54         || (c >= 0x00D8 && c <= 0x00F6)
  55         || (c >= 0x00F8 && c <= 0x02FF)
  56         || (c >= 0x0370 && c <= 0x037D)
  57         || (c >= 0x037F && c <= 0x1FFF)
  58         || (c >= 0x200C && c <= 0x200D)
  59         || (c >= 0x2070 && c <= 0x218F)
  60         || (c >= 0x2C00 && c <= 0x2FEF)
  61         || (c >= 0x3001 && c <= 0xD7FF)
  62         || (c >= 0xF900 && c <= 0xFDCF)
  63         || (c >= 0xFDF0 && c <= 0xFFFD)
  64
  65         // surrogates
  66         || (c >= 0xD800 && c <= 0xDBFF)
  67         || (c >= 0xDC00 && c <= 0xDFFF) )
  68     {
  69         nClass = 15;
  70     }
  71     else if( c == '-'
  72              || c == '.'
  73              || (c >= '0' && c <= '9')
  74              || (c == 0x00B7)
  75              || (c >= 0x0300 && c <= 0x036F)
  76              || (c >= 0x203F && c <= 0x2040) )
  77     {
  78         nClass = 10;
  79     }
  80     else if( c == ':' )
  81     {
  82         nClass = 3;
  83     }
  84
  85     return nClass;
  86 }
  87
  88 bool isValidQName( const OUString& sName,
  89                    const Reference<XNameContainer>& /*xNamespaces*/ )
  90 {
  91     sal_Int32 nLength = sName.getLength();
  92     const sal_Unicode* pName = sName.getStr();
  93
  94     bool bRet = false;
  95     sal_Int32 nColon = 0;
  96     if( nLength > 0 )
  97     {
  98         bRet = ( ( lcl_getCharClass( pName[0] ) & 4 ) != 0 );
  99         for( sal_Int32 n = 1; n < nLength; n++ )
 100         {
 101             sal_uInt8 nClass = lcl_getCharClass( pName[n] );
 102             bRet &= ( ( nClass & 2 ) != 0 );
 103             if( nClass == 3 )
 104                 nColon++;
 105         }
 106     }
 107     if( nColon > 1 )
 108         bRet = false;
 109
 110     return bRet;
 111 }
 112
 113 bool isValidPrefixName( const OUString& sName,
 114                         const Reference<XNameContainer>& /*xNamespaces*/ )
 115 {
 116     sal_Int32 nLength = sName.getLength();
 117     const sal_Unicode* pName = sName.getStr();
 118     bool bRet = false;
 119
 120     if( nLength > 0 )
 121     {
 122         bRet = ( ( lcl_getCharClass( pName[0] ) & 4 ) != 0 );
 123         for( sal_Int32 n = 1; n < nLength; n++ )
 124             bRet &= ( ( lcl_getCharClass( pName[n] ) & 8 ) != 0 );
 125     }
 126
 127     return bRet;
 128 }
 129
 130 Reference<XDocumentBuilder> getDocumentBuilder()
 131 {
 132     Reference<XDocumentBuilder> xBuilder(DocumentBuilder::create(::comphelper::getProcessComponentContext()));
 133     return xBuilder;
 134 }
 135
 136 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */