diff options
Diffstat (limited to 'debian/htdig/htdig-3.2.0b6/htsearch/DocMatch.cc')
| -rw-r--r-- | debian/htdig/htdig-3.2.0b6/htsearch/DocMatch.cc | 222 |
1 files changed, 222 insertions, 0 deletions
diff --git a/debian/htdig/htdig-3.2.0b6/htsearch/DocMatch.cc b/debian/htdig/htdig-3.2.0b6/htsearch/DocMatch.cc new file mode 100644 index 00000000..575c82aa --- /dev/null +++ b/debian/htdig/htdig-3.2.0b6/htsearch/DocMatch.cc @@ -0,0 +1,222 @@ +// DocMatch.cc +// +// DocMatch: Data object only. Contains information related to a given +// document that was matched by a search. For instance, the +// score of the document for this search. +// +// Part of the ht://Dig package <http://www.htdig.org/> +// Copyright (c) 1995-2004 The ht://Dig Group +// For copyright details, see the file COPYING in your distribution +// or the GNU Library General Public License (LGPL) version 2 or later +// <http://www.gnu.org/copyleft/lgpl.html> +// +// $Id: DocMatch.cc,v 1.8 2004/05/28 13:15:24 lha Exp $ +// + +#ifdef HAVE_CONFIG_H +#include "htconfig.h" +#endif /* HAVE_CONFIG_H */ + +#include "DocMatch.h" +#include "HtConfiguration.h" +#include "HtWordReference.h" + +#ifdef HAVE_STD +#include <iostream> +#ifdef HAVE_NAMESPACES +using namespace std; +#endif +#else +#include <iostream.h> +#endif /* HAVE_STD */ + +//******************************************************************************* +// DocMatch::DocMatch() +// + + +//******************************************************************************* +// DocMatch::~DocMatch() +// +DocMatch::~DocMatch() +{ +} + +// +// merge with another match +// sets anchor to the lower value +// merges location lists +// +void +DocMatch::Merge(const DocMatch &match) +{ + if(match.anchor < anchor) + { + anchor = match.anchor; + } + AddLocations(match.GetLocations()); +} + +// +// adds locations to an existing list +// avoiding duplicates, in location order +// +void +DocMatch::AddLocations(const List *locs) +{ + List *merge = new List; + ListCursor c; + + locations->Start_Get(); + locs->Start_Get(c); + Location *a = (Location *)locations->Get_Next(); + Location *b = (Location *)locs->Get_Next(c); + while(a && b) + { + if(a->from < b->from) + { + merge->Add(a); + a = (Location *)locations->Get_Next(); + } + else if(a->from > b->from) + { + merge->Add(new Location(*b)); + b = (Location *)locs->Get_Next(c); + } + else // (a->from == b->from) + { + if(a->to < b->to) + { + merge->Add(new Location(*a)); + merge->Add(new Location(*b)); + } + else if(a->to > b->to) + { + merge->Add(new Location(*b)); + merge->Add(new Location(*a)); + } + else // (a->to == b->to) + { + merge->Add(new Location( + a->from, + a->to, + a->flags, + a->weight + b->weight)); + } + a = (Location *)locations->Get_Next(); + b = (Location *)locs->Get_Next(c); + } + } + while(a) + { + merge->Add(a); + a = (Location *)locations->Get_Next(); + } + while(b) + { + merge->Add(new Location(*b)); + b = (Location *)locs->Get_Next(c); + } + locations->Release(); + delete locations; + locations = merge; +} + +// +// set the location list +// +void +DocMatch::SetLocations(List *locs) +{ + delete locations; + locations = locs; +} + +// +// copy constructor, copies locations +// +DocMatch::DocMatch(const DocMatch &other) +{ + score = -1.0; + //score = other.score; + id = other.id; + anchor = other.anchor; + locations = new List; + AddLocations(other.GetLocations()); +} + +// +// set weight of all locations +// +void +DocMatch::SetWeight(double weight) +{ + locations->Start_Get(); + for(int i = 0; i < locations->Count(); i++) + { + Location *loc = (Location *)locations->Get_Next(); + loc->weight = weight; + } +} + +// +// debug dump +// +void +DocMatch::Dump() +{ + cerr << "DocMatch id: " << id << " {" << endl; + locations->Start_Get(); + for(int i = 0; i < locations->Count(); i++) + { + Location *loc = (Location *)locations->Get_Next(); + cerr << "location [" << loc->from; + cerr << ", " << loc->to << "] "; + cerr << "weight " << loc->weight; + cerr << " flags " << loc->flags; + cerr << endl; + } + cerr << "score: " << GetScore() << endl << "}" << endl; +} + +double +DocMatch::GetScore() +{ + HtConfiguration* config= HtConfiguration::config(); + static double text_factor = config->Double("text_factor", 1); + static double caps_factor = config->Double("caps_factor", 1); + static double title_factor = config->Double("title_factor", 1); + static double heading_factor = config->Double("heading_factor", 1); + static double keywords_factor = config->Double("keywords_factor", 1); + static double meta_desc_factor = config->Double("meta_description_factor", 1); + static double author_factor = config->Double("author_factor", 1); + static double description_factor = config->Double("description_factor", 1); + static double url_text_factor = config->Double("url_text_factor", 1); + + if (score == -1.0) + { + score = 0.0; + + double locresult = 0.0; + ListCursor c; + locations->Start_Get(c); + Location *loc = (Location *)locations->Get_Next(c); + while(loc) + { + locresult = 0.0; + if (loc->flags == FLAG_TEXT) locresult += text_factor; + if (loc->flags & FLAG_CAPITAL) locresult += caps_factor; + if (loc->flags & FLAG_TITLE) locresult += title_factor; + if (loc->flags & FLAG_HEADING) locresult += heading_factor; + if (loc->flags & FLAG_KEYWORDS) locresult += keywords_factor; + if (loc->flags & FLAG_DESCRIPTION) locresult += meta_desc_factor; + if (loc->flags & FLAG_AUTHOR) locresult += author_factor; + if (loc->flags & FLAG_LINK_TEXT) locresult += description_factor; + if (loc->flags & FLAG_URL) locresult += url_text_factor; + + score += loc->weight * locresult; + loc = (Location *)locations->Get_Next(c); + } + } + return score; +} |