fbreader/src/formats/html/HtmlEntityCollection.cpp

   1 /*
   2  * Copyright (C) 2004-2008 Geometer Plus <contact@geometerplus.com>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  17  * 02110-1301, USA.
  18  */
  19
  20 #include <stdlib.h>
  21
  22 #include <cctype>
  23
  24 #include <ZLXMLReader.h>
  25 #include <ZLibrary.h>
  26
  27 #include "HtmlEntityCollection.h"
  28
  29 class CollectionReader : public ZLXMLReader {
  30
  31 public:
  32         CollectionReader(std::map<std::string,int> &collection);
  33         void startElementHandler(const char *tag, const char **attributes);
  34
  35 private:
  36         std::map<std::string,int> &myCollection;
  37 };
  38
  39 std::map<std::string,int> HtmlEntityCollection::ourCollection;
  40
  41 int HtmlEntityCollection::symbolNumber(const std::string &name) {
  42         if (ourCollection.empty()) {
  43                 CollectionReader(ourCollection).readDocument(
  44                         ZLibrary::ApplicationDirectory() + ZLibrary::FileNameDelimiter + "formats" + ZLibrary::FileNameDelimiter + "html" + ZLibrary::FileNameDelimiter + "html.ent"
  45                 );
  46         }
  47         std::map<std::string,int>::const_iterator it = ourCollection.find(name);
  48         return (it == ourCollection.end()) ? 0 : it->second;
  49 }
  50
  51 CollectionReader::CollectionReader(std::map<std::string,int> &collection) : myCollection(collection) {
  52 }
  53
  54 void CollectionReader::startElementHandler(const char *tag, const char **attributes) {
  55         static const std::string ENTITY = "entity";
  56
  57         if (ENTITY == tag) {
  58                 for (int i = 0; i < 4; ++i) {
  59                         if (attributes[i] == 0) {
  60                                 return;
  61                         }
  62                 }
  63                 static const std::string _name = "name";
  64                 static const std::string _number = "number";
  65                 if ((_name == attributes[0]) && (_number == attributes[2])) {
  66                         myCollection[attributes[1]] = atoi(attributes[3]);
  67                 }
  68         }
  69 }