LCOV - code coverage report
Current view: top level - shell/source/all - xml_parser.cxx (source / functions) Hit Total Coverage
Test: commit 10e77ab3ff6f4314137acd6e2702a6e5c1ce1fae Lines: 0 72 0.0 %
Date: 2014-11-03 Functions: 0 12 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             :  * 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 "internal/xml_parser.hxx"
      22             : #include "internal/i_xml_parser_event_handler.hxx"
      23             : 
      24             : #ifdef _WIN32
      25             : #include "internal/utilities.hxx"
      26             : #else
      27             : #define UTF8ToWString(s) s
      28             : #endif
      29             : 
      30             : #include <assert.h>
      31             : 
      32             : namespace /* private */
      33             : {
      34             : 
      35             :     /*  Extracts the local part of tag without
      36             :         namespace decoration e.g. meta:creator -> creator */
      37             :     const XML_Char COLON = (XML_Char)':';
      38             : 
      39           0 :     const XML_Char* get_local_name(const XML_Char* rawname)
      40             :     {
      41           0 :         const XML_Char* p = rawname;
      42             : 
      43             :         // go to the end
      44           0 :         while (*p) p++;
      45             : 
      46             :         // go back until the first ':'
      47           0 :         while (*p != COLON && p > rawname)
      48           0 :             p--;
      49             : 
      50             :         // if we are on a colon one step forward
      51           0 :         if (*p == COLON)
      52           0 :             p++;
      53             : 
      54           0 :         return p;
      55             :     }
      56             : 
      57           0 :     inline xml_parser* get_parser_instance(void* data)
      58             :     {
      59             :         return reinterpret_cast<xml_parser*>(XML_GetUserData(
      60           0 :             reinterpret_cast<XML_Parser>(data)));
      61             :     }
      62             : 
      63           0 :     bool has_only_whitespaces(const XML_Char* s, int len)
      64             :     {
      65           0 :         const XML_Char* p = s;
      66           0 :         for (int i = 0; i < len; i++)
      67           0 :             if (*p++ != ' ') return false;
      68           0 :         return true;
      69             :     }
      70             : }
      71             : 
      72           0 : xml_parser::xml_parser(const XML_Char* EncodingName) :
      73             :     document_handler_(0),
      74           0 :     xml_parser_(XML_ParserCreate(EncodingName))
      75             : {
      76           0 :     init();
      77           0 : }
      78             : 
      79           0 : xml_parser::~xml_parser()
      80             : {
      81           0 :     XML_ParserFree(xml_parser_);
      82           0 : }
      83             : 
      84             : /* Callback functions will be called by the parser on
      85             :    different events */
      86             : 
      87             : extern "C"
      88             : {
      89             : 
      90           0 : static void xml_start_element_handler(void* UserData, const XML_Char* name, const XML_Char** atts)
      91             : {
      92             :     assert(UserData != NULL);
      93             : 
      94           0 :     xml_parser* pImpl  = get_parser_instance(UserData);
      95             : 
      96           0 :     i_xml_parser_event_handler* pDocHdl = pImpl->get_document_handler();
      97           0 :     if (pDocHdl)
      98             :     {
      99           0 :         xml_tag_attribute_container_t attributes;
     100             : 
     101           0 :         int i = 0;
     102             : 
     103           0 :         while(atts[i])
     104             :         {
     105           0 :             attributes[UTF8ToWString(reinterpret_cast<const char*>(get_local_name(atts[i])))] = UTF8ToWString(reinterpret_cast<const char*>(atts[i+1]));
     106           0 :             i += 2; // skip to next pair
     107             :         }
     108             : 
     109             :         pDocHdl->start_element(
     110           0 :             UTF8ToWString(reinterpret_cast<const char*>(name)), UTF8ToWString(reinterpret_cast<const char*>(get_local_name(name))), attributes);
     111             :     }
     112           0 : }
     113             : 
     114           0 : static void xml_end_element_handler(void* UserData, const XML_Char* name)
     115             : {
     116             :     assert(UserData);
     117             : 
     118           0 :     xml_parser* pImpl  = get_parser_instance(UserData);
     119           0 :     i_xml_parser_event_handler* pDocHdl = pImpl->get_document_handler();
     120           0 :     if (pDocHdl)
     121           0 :         pDocHdl->end_element(UTF8ToWString(reinterpret_cast<const char*>(name)), UTF8ToWString(reinterpret_cast<const char*>(get_local_name(name))));
     122           0 : }
     123             : 
     124           0 : static void xml_character_data_handler(void* UserData, const XML_Char* s, int len)
     125             : {
     126             :     assert(UserData);
     127             : 
     128           0 :     xml_parser* pImpl  = get_parser_instance(UserData);
     129           0 :     i_xml_parser_event_handler* pDocHdl = pImpl->get_document_handler();
     130           0 :     if (pDocHdl)
     131             :     {
     132           0 :         if (has_only_whitespaces(s,len))
     133           0 :             pDocHdl->ignore_whitespace(UTF8ToWString(std::string(reinterpret_cast<const char*>(s), len)));
     134             :         else
     135           0 :             pDocHdl->characters(UTF8ToWString(std::string(reinterpret_cast<const char*>(s), len)));
     136             :     }
     137           0 : }
     138             : 
     139           0 : static void xml_comment_handler(void* UserData, const XML_Char* Data)
     140             : {
     141             :     assert(UserData);
     142             : 
     143           0 :     xml_parser* pImpl  = get_parser_instance(UserData);
     144           0 :     i_xml_parser_event_handler* pDocHdl = pImpl->get_document_handler();
     145           0 :     if (pDocHdl)
     146           0 :         pDocHdl->comment(UTF8ToWString(reinterpret_cast<const char*>(Data)));
     147           0 : }
     148             : 
     149             : } // extern "C"
     150             : 
     151           0 : void xml_parser::init()
     152             : {
     153           0 :     XML_SetUserData(xml_parser_, this);
     154             : 
     155             :     // we use the parser as handler argument,
     156             :     // so we could use it if necessary, the
     157             :     // UserData are usable anyway using
     158             :     // XML_GetUserData(...)
     159           0 :     XML_UseParserAsHandlerArg(xml_parser_);
     160             : 
     161             :     XML_SetElementHandler(
     162             :         xml_parser_,
     163             :         xml_start_element_handler,
     164           0 :         xml_end_element_handler);
     165             : 
     166             :     XML_SetCharacterDataHandler(
     167             :         xml_parser_,
     168           0 :         xml_character_data_handler);
     169             : 
     170             :     XML_SetCommentHandler(
     171             :         xml_parser_,
     172           0 :         xml_comment_handler);
     173           0 : }
     174             : 
     175           0 : void xml_parser::parse(const char* XmlData, size_t Length, bool IsFinal)
     176             : {
     177           0 :     if (XML_STATUS_ERROR ==
     178           0 :             XML_Parse(xml_parser_, XmlData, static_cast<int>(Length), IsFinal))
     179             :     {
     180             :         throw xml_parser_exception(
     181           0 :             (char*)XML_ErrorString(XML_GetErrorCode(xml_parser_)),
     182           0 :             (int)XML_GetErrorCode(xml_parser_),
     183           0 :             XML_GetCurrentLineNumber(xml_parser_),
     184           0 :             XML_GetCurrentColumnNumber(xml_parser_),
     185           0 :             XML_GetCurrentByteIndex(xml_parser_));
     186             :     }
     187           0 : }
     188             : 
     189           0 : void xml_parser::set_document_handler(
     190             :     i_xml_parser_event_handler* event_handler)
     191             : {
     192           0 :     document_handler_ = event_handler;
     193           0 : }
     194             : 
     195             : 
     196             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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