xapian-applications/omega/myhtmlparse.h

   1 /* myhtmlparse.h: subclass of HtmlParser for extracting text
   2  *
   3  * Copyright 1999,2000,2001 BrightStation PLC
   4  * Copyright 2002,2003,2004,2006,2008,2010,2011,2012,2013 Olly Betts
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation; either version 2 of the
   9  * License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301
  19  * USA
  20  */
  21
  22 #ifndef OMEGA_INCLUDED_MYHTMLPARSE_H
  23 #define OMEGA_INCLUDED_MYHTMLPARSE_H
  24
  25 #include "htmlparse.h"
  26
  27 // FIXME: Should we include \xa0 which is non-breaking space in iso-8859-1, but
  28 // not in all charsets and perhaps spans of all \xa0 should become a single
  29 // \xa0?
  30 #define WHITESPACE " \t\n\r"
  31
  32 class MyHtmlParser : public HtmlParser {
  33     public:
  34         int pending_space;
  35         bool in_script_tag;
  36         bool in_style_tag;
  37         bool indexing_allowed;
  38         bool ignoring_metarobots;
  39         bool charset_from_meta;
  40         string title, sample, keywords, dump, author, topic;
  41         time_t created;
  42         string * target;
  43
  44         void process_text(const string &text);
  45         bool opening_tag(const string &tag);
  46         bool closing_tag(const string &tag);
  47         void parse_html(const string &text, const string &charset_,
  48                         bool charset_from_meta_);
  49         void ignore_metarobots() { ignoring_metarobots = true; }
  50         MyHtmlParser() :
  51                 pending_space(0),
  52                 in_script_tag(false),
  53                 in_style_tag(false),
  54                 indexing_allowed(true),
  55                 ignoring_metarobots(false),
  56                 charset_from_meta(false),
  57                 created(time_t(-1)),
  58                 target(&dump) { }
  59
  60         void reset() {
  61             pending_space = 0;
  62             in_script_tag = false;
  63             in_style_tag = false;
  64             indexing_allowed = true;
  65             ignoring_metarobots = false;
  66             charset_from_meta = false;
  67             title.resize(0);
  68             sample.resize(0);
  69             keywords.resize(0);
  70             dump.resize(0);
  71             author.resize(0);
  72             topic.resize(0);
  73             created = time_t(-1);
  74             target = &dump;
  75         }
  76 };
  77
  78 #endif // OMEGA_INCLUDED_MYHTMLPARSE_H