svtools/source/svhtml/htmlsupp.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 <comphelper/string.hxx>
  21 #include <svtools/parhtml.hxx>
  22 #include <svtools/htmltokn.h>
  23 #include <svtools/htmlkywd.hxx>
  24 #include <tools/urlobj.hxx>
  25
  26 // Table for converting option values into strings
  27 HTMLOptionEnum<HTMLScriptLanguage> const aScriptLangOptEnums[] =
  28 {
  29     { OOO_STRING_SVTOOLS_HTML_LG_starbasic,    HTMLScriptLanguage::StarBasic     },
  30     { OOO_STRING_SVTOOLS_HTML_LG_javascript,   HTMLScriptLanguage::JavaScript    },
  31     { OOO_STRING_SVTOOLS_HTML_LG_javascript11, HTMLScriptLanguage::JavaScript    },
  32     { OOO_STRING_SVTOOLS_HTML_LG_livescript,   HTMLScriptLanguage::JavaScript    },
  33     { nullptr,                                 HTMLScriptLanguage(0) }
  34 };
  35
  36 void HTMLParser::ParseScriptOptions( OUString& rLangString, std::u16string_view rBaseURL,
  37                                      HTMLScriptLanguage& rLang,
  38                                      OUString& rSrc,
  39                                      OUString& rLibrary,
  40                                      OUString& rModule )
  41 {
  42     const HTMLOptions& aScriptOptions = GetOptions();
  43
  44     rLangString.clear();
  45     rLang = HTMLScriptLanguage::JavaScript;
  46     rSrc.clear();
  47     rLibrary.clear();
  48     rModule.clear();
  49
  50     for( size_t i = aScriptOptions.size(); i; )
  51     {
  52         const HTMLOption& aOption = aScriptOptions[--i];
  53         switch( aOption.GetToken() )
  54         {
  55         case HtmlOptionId::LANGUAGE:
  56             {
  57                 rLangString = aOption.GetString();
  58                 HTMLScriptLanguage nLang;
  59                 if( aOption.GetEnum( nLang, aScriptLangOptEnums ) )
  60                     rLang = nLang;
  61                 else
  62                     rLang = HTMLScriptLanguage::Unknown;
  63             }
  64             break;
  65
  66         case HtmlOptionId::SRC:
  67             rSrc = INetURLObject::GetAbsURL( rBaseURL, aOption.GetString() );
  68             break;
  69         case HtmlOptionId::SDLIBRARY:
  70             rLibrary = aOption.GetString();
  71             break;
  72
  73         case HtmlOptionId::SDMODULE:
  74             rModule = aOption.GetString();
  75             break;
  76         default: break;
  77         }
  78     }
  79 }
  80
  81 void HTMLParser::RemoveSGMLComment( OUString &rString )
  82 {
  83     sal_Unicode c = 0;
  84     sal_Int32 idx = 0;
  85     while (idx < rString.getLength())
  86     {
  87         c = rString[idx];
  88         if (!( c==' ' || c=='\t' || c=='\r' || c=='\n' ) )
  89             break;
  90         idx++;
  91     }
  92     if (idx)
  93         rString = rString.copy( idx );
  94
  95     idx = rString.getLength() - 1;
  96     while (idx > 0)
  97         // Can never get to 0 because that would mean the string contains only whitespace, and the first
  98         // loop would already have removed all of those.
  99     {
 100         c = rString[idx];
 101         if (!( c==' ' || c=='\t' || c=='\r' || c=='\n' ) )
 102             break;
 103         idx--;
 104     }
 105     if (idx != rString.getLength() - 1)
 106         rString = rString.copy( 0, idx + 1 );
 107
 108     // remove SGML comments
 109     if( rString.startsWith( "<!--" ) )
 110     {
 111         // the whole line
 112         sal_Int32 nPos = 4;
 113         while( nPos < rString.getLength() )
 114         {
 115             c = rString[nPos];
 116             if (c == '\r' || c == '\n')
 117                 break;
 118             ++nPos;
 119         }
 120         if( c == '\r' && nPos+1 < rString.getLength() &&
 121             '\n' == rString[nPos+1] )
 122             ++nPos;
 123         else if( c != '\n' )
 124             nPos = 3;
 125         ++nPos;
 126         rString = rString.copy( nPos );
 127     }
 128
 129     if( !rString.endsWith("-->") )
 130         return;
 131
 132     rString = rString.copy( 0, rString.getLength()-3 );
 133     // "//" or "'", maybe preceding CR/LF
 134     rString = comphelper::string::stripEnd(rString, ' ');
 135     sal_Int32 nDel = 0, nLen = rString.getLength();
 136     if( nLen >= 2 &&
 137         rString.endsWith("//") )
 138     {
 139         nDel = 2;
 140     }
 141     else if( nLen && '\'' == rString[nLen-1] )
 142     {
 143         nDel = 1;
 144     }
 145     if( nDel && nLen >= nDel+1 )
 146     {
 147         c = rString[nLen-(nDel+1)];
 148         if( '\r'==c || '\n'==c )
 149         {
 150             nDel++;
 151             if( '\n'==c && nLen >= nDel+1 &&
 152                 '\r'==rString[nLen-(nDel+1)] )
 153                 nDel++;
 154         }
 155     }
 156     rString = rString.copy( 0, nLen-nDel );
 157 }
 158
 159 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */