LCOV - code coverage report
Current view: top level - helpcompiler/source - BasCodeTagger.cxx (source / functions) Hit Total Coverage
Test: commit e02a6cb2c3e2b23b203b422e4e0680877f232636 Lines: 0 124 0.0 %
Date: 2014-04-14 Functions: 0 14 0.0 %
Legend: Lines: hit not hit

          Line data    Source code
       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             : 
      10             : #include <BasCodeTagger.hxx>
      11             : 
      12           0 : LibXmlTreeWalker::LibXmlTreeWalker( xmlDocPtr doc )
      13             : {
      14           0 :     if ( doc == NULL )
      15           0 :         throw BasicCodeTagger::NULL_DOCUMENT;
      16           0 :     m_pCurrentNode = xmlDocGetRootElement( doc );
      17           0 :     if ( m_pCurrentNode == NULL )
      18           0 :         throw BasicCodeTagger::EMPTY_DOCUMENT;
      19           0 :     else if ( m_pCurrentNode->xmlChildrenNode != NULL )
      20           0 :         m_Queue.push_back( m_pCurrentNode->xmlChildrenNode );
      21           0 :     nextNode();
      22           0 : }
      23             : 
      24           0 : void LibXmlTreeWalker::nextNode()
      25             : {
      26             : 
      27             :       //next node
      28           0 :     if ( m_pCurrentNode->next == NULL )
      29             :     {
      30           0 :         m_pCurrentNode = m_Queue.front();
      31           0 :         m_Queue.pop_front();
      32             :     }
      33             :     else
      34           0 :         m_pCurrentNode = m_pCurrentNode->next;
      35             :     //queue chiledren if they exist
      36           0 :     if ( m_pCurrentNode->xmlChildrenNode != NULL )
      37           0 :         m_Queue.push_back( m_pCurrentNode->xmlChildrenNode );
      38           0 : }
      39             : 
      40           0 : void LibXmlTreeWalker::ignoreCurrNodesChildren()
      41             : {
      42           0 :     if ( m_pCurrentNode->xmlChildrenNode != NULL )
      43           0 :           m_Queue.pop_back();
      44           0 : }
      45             : 
      46           0 : bool LibXmlTreeWalker::end()
      47             : {
      48           0 :     return m_pCurrentNode->next == NULL && m_Queue.empty();
      49             : }
      50             : 
      51           0 : xmlNodePtr LibXmlTreeWalker::currentNode()
      52             : {
      53           0 :     return m_pCurrentNode;
      54             : }
      55             : 
      56             : 
      57             : 
      58           0 : BasicCodeTagger::BasicCodeTagger( xmlDocPtr rootDoc ):
      59           0 :     m_Highlighter(HIGHLIGHT_BASIC)
      60             : {
      61           0 :       if ( rootDoc == NULL )
      62           0 :           throw NULL_DOCUMENT;
      63           0 :       m_pDocument = rootDoc;
      64           0 :     m_pXmlTreeWalker = NULL;
      65           0 :     m_bTaggingCompleted = false;
      66             : 
      67           0 : }
      68             : 
      69           0 : BasicCodeTagger::~BasicCodeTagger()
      70             : {
      71           0 :     if ( m_pXmlTreeWalker != NULL )
      72           0 :       delete m_pXmlTreeWalker;
      73           0 : }
      74             : //!Gathers all the <bascode> tag nodes from xml tree.
      75             : /*!
      76             :  *    Assumes m_pDocument is valid. Handles m_pXmlTreeWalker and m_BasicCodeContainerTags members.
      77             :  */
      78           0 : void BasicCodeTagger::getBasicCodeContainerNodes()
      79             : {
      80             :       xmlNodePtr currentNode;
      81             : 
      82           0 :     m_BasicCodeContainerTags.clear();
      83             : 
      84           0 :     if ( m_pXmlTreeWalker != NULL )
      85           0 :       delete m_pXmlTreeWalker;
      86           0 :     m_pXmlTreeWalker = new LibXmlTreeWalker( m_pDocument );
      87             : 
      88           0 :     currentNode = m_pXmlTreeWalker->currentNode();
      89           0 :     if ( !( xmlStrcmp( currentNode->name, (const xmlChar*) "bascode" ) ) )
      90             :     { //Found <bascode>
      91           0 :         m_BasicCodeContainerTags.push_back( currentNode ); //it goes to the end of the list
      92             :     }
      93           0 :     while ( !m_pXmlTreeWalker->end() )
      94             :     {
      95           0 :           m_pXmlTreeWalker->nextNode();
      96           0 :         if ( !( xmlStrcmp( m_pXmlTreeWalker->currentNode()->name, (const xmlChar*) "bascode" ) ) )
      97             :         { //Found <bascode>
      98           0 :             m_BasicCodeContainerTags.push_back( m_pXmlTreeWalker->currentNode() ); //it goes to the end of the list
      99           0 :             m_pXmlTreeWalker->ignoreCurrNodesChildren();
     100             :         }
     101             :     }
     102           0 : }
     103             : 
     104             : //! Extracts Basic Codes containted in <bascode> tags.
     105             : /*!
     106             :  *  For each <bascode> this method iterates trough it's <paragraph> tags and "inserts" <item> tags according
     107             :  *  to the Basic code syntax found in that paragraph.
     108             :  */
     109           0 : void BasicCodeTagger::tagBasCodeParagraphs()
     110             : {
     111             :     //helper variables
     112             :     xmlNodePtr currBascodeNode;
     113             :     xmlNodePtr currParagraph;
     114           0 :     while ( !m_BasicCodeContainerTags.empty() )
     115             :     {
     116           0 :         currBascodeNode = m_BasicCodeContainerTags.front();
     117           0 :         currParagraph = currBascodeNode->xmlChildrenNode; //first <paragraph>
     118           0 :         while ( currParagraph != NULL )
     119             :         {
     120           0 :             tagParagraph( currParagraph );
     121           0 :             currParagraph=currParagraph->next;
     122             :         }
     123           0 :         m_BasicCodeContainerTags.pop_front(); //next element
     124             :     }
     125           0 : }
     126             : 
     127             : //! Used by tagBasCodeParagraphs(). It does the work on the current paragraph containing Basic code.
     128           0 : void BasicCodeTagger::tagParagraph( xmlNodePtr paragraph )
     129             : {
     130             :     //1. get paragraph text
     131             :     xmlChar* codeSnippet;
     132           0 :     codeSnippet = xmlNodeListGetString( m_pDocument, paragraph->xmlChildrenNode, 1 );
     133           0 :     if ( codeSnippet == NULL )
     134             :     {
     135           0 :         return; //no text, nothing more to do here
     136             :     }
     137             :     //2. delete every child from paragraph (except attributes)
     138           0 :     xmlNodePtr curNode = paragraph->xmlChildrenNode;
     139             :     xmlNodePtr sibling;
     140           0 :     while ( curNode != NULL )
     141             :     {
     142           0 :         sibling = curNode->next;
     143           0 :         xmlUnlinkNode( curNode );
     144           0 :         xmlFreeNode( curNode );
     145           0 :         curNode = sibling;
     146             :     }
     147             : 
     148             :     //3. create new paragraph content
     149             :     OUString strLine( reinterpret_cast<const sal_Char*>(codeSnippet),
     150           0 :                                 strlen(reinterpret_cast<const char*>(codeSnippet)),
     151           0 :                                 RTL_TEXTENCODING_UTF8 );
     152           0 :     std::vector<HighlightPortion> portions;
     153           0 :     m_Highlighter.getHighlightPortions( strLine, portions );
     154           0 :     for (std::vector<HighlightPortion>::iterator i(portions.begin());
     155           0 :          i != portions.end(); ++i)
     156             :     {
     157           0 :         OString sToken(OUStringToOString(strLine.copy(i->nBegin, i->nEnd-i->nBegin), RTL_TEXTENCODING_UTF8));
     158           0 :         xmlNodePtr text = xmlNewText((const xmlChar*)sToken.getStr());
     159           0 :         if ( i->tokenType != TT_WHITESPACE )
     160             :         {
     161           0 :             xmlChar* typeStr = getTypeString( i->tokenType );
     162           0 :             curNode = xmlNewTextChild( paragraph, 0, (xmlChar*)"item", 0 );
     163           0 :             xmlNewProp( curNode, (xmlChar*)"type", typeStr );
     164           0 :             xmlAddChild( curNode, text );
     165           0 :             xmlFree( typeStr );
     166             :         }
     167             :         else
     168           0 :             xmlAddChild( paragraph, text );
     169           0 :     }
     170           0 :     xmlFree( codeSnippet );
     171             : }
     172             : 
     173             : //! Manages tagging process.
     174             : /*!
     175             :  *    This is the "main" function of BasicCodeTagger.
     176             :  */
     177           0 : void BasicCodeTagger::tagBasicCodes()
     178             : {
     179           0 :       if ( m_bTaggingCompleted )
     180           0 :         return;
     181             :     //gather <bascode> nodes
     182             :     try
     183             :     {
     184           0 :         getBasicCodeContainerNodes();
     185             :     }
     186           0 :     catch (TaggerException &ex)
     187             :     {
     188           0 :           std::cout << "BasCodeTagger error occured. Error code:" << ex << std::endl;
     189             :     }
     190             : 
     191             :     //tag basic code paragraphs in <bascode> tag
     192           0 :     tagBasCodeParagraphs();
     193           0 :     m_bTaggingCompleted = true;
     194             : }
     195             : 
     196             : //! Converts SyntaxHighlighter's TokenTypes enum to a type string for <item type=... >
     197           0 : xmlChar* BasicCodeTagger::getTypeString( TokenTypes tokenType )
     198             : {
     199             :     const char* str;
     200           0 :     switch ( tokenType )
     201             :     {
     202             :         case TT_UNKNOWN :
     203           0 :             str = "unknown";
     204           0 :             break;
     205             :         case TT_IDENTIFIER :
     206           0 :             str = "identifier";
     207           0 :             break;
     208             :         case TT_WHITESPACE :
     209           0 :             str = "whitespace";
     210           0 :             break;
     211             :         case TT_NUMBER :
     212           0 :             str = "number";
     213           0 :             break;
     214             :         case TT_STRING :
     215           0 :             str = "string";
     216           0 :             break;
     217             :         case TT_EOL :
     218           0 :             str = "eol";
     219           0 :             break;
     220             :         case TT_COMMENT :
     221           0 :             str = "comment";
     222           0 :             break;
     223             :         case TT_ERROR :
     224           0 :             str = "error";
     225           0 :             break;
     226             :         case TT_OPERATOR :
     227           0 :             str = "operator";
     228           0 :             break;
     229             :         case TT_KEYWORDS :
     230           0 :             str = "keyword";
     231           0 :             break;
     232             :         case TT_PARAMETER :
     233           0 :             str = "parameter";
     234           0 :             break;
     235             :         default :
     236           0 :             str = "unknown";
     237           0 :             break;
     238             :     }
     239           0 :     return xmlCharStrdup( str );
     240           0 : }
     241             : 
     242             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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