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Diffstat (limited to 'debian/htdig/htdig-3.2.0b6/htfuzzy/Endings.cc')
| -rw-r--r-- | debian/htdig/htdig-3.2.0b6/htfuzzy/Endings.cc | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/debian/htdig/htdig-3.2.0b6/htfuzzy/Endings.cc b/debian/htdig/htdig-3.2.0b6/htfuzzy/Endings.cc new file mode 100644 index 00000000..e8176677 --- /dev/null +++ b/debian/htdig/htdig-3.2.0b6/htfuzzy/Endings.cc @@ -0,0 +1,175 @@ +// +// Endings.cc +// +// Endings: A fuzzy matching algorithm to match the grammatical endings rules +// used by the ispell dictionary files. +// +// 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: Endings.cc,v 1.12 2004/05/28 13:15:20 lha Exp $ +// + +#ifdef HAVE_CONFIG_H +#include "htconfig.h" +#endif /* HAVE_CONFIG_H */ + +#include <fcntl.h> + +#include "StringList.h" +#include "Endings.h" +#include "htfuzzy.h" +#include "HtConfiguration.h" + + +//***************************************************************************** +// Endings::Endings() +// +Endings::Endings(const HtConfiguration& config_arg) : + Fuzzy(config_arg) +{ + root2word = 0; + word2root = 0; + name = "endings"; +} + + +//***************************************************************************** +// Endings::~Endings() +// +Endings::~Endings() +{ + if (root2word) + { + root2word->Close(); + delete root2word; + root2word = 0; + } + + if (word2root) + { + word2root->Close(); + delete word2root; + word2root = 0; + } +} + + +//***************************************************************************** +// void Endings::getWords(char *word, String &words) +// Return a list of words with some common English word endings. +// +void +Endings::getWords(char *w, List &words) +{ + if (!word2root || !root2word) + return; + + String data; + + String word = w; + word.lowercase(); + HtStripPunctuation(word); + String saveword = word.get(); + + // + // Look for word's root(s). Some words may have more than one root, + // so handle them all. Whether or not a word has a root, it's assumed + // to be root in itself. + // + if (word2root->Get(word, data) == OK) + word << ' ' << data; + + StringList roots(word, " "); + Object *root; + roots.Start_Get(); + while ((root = roots.Get_Next()) != 0) + { + // + // Found a root. Look for new words that have this root. + // + word = ((String *)root)->get(); + if (root2word->Get(word, data) == OK) + word << ' ' << data; + + // + // Iterate through the root's permutations + // + char *token = strtok(word.get(), " "); + while (token) + { + if (mystrcasecmp(token, saveword.get()) != 0) + { + // + // This permutation isn't the original word, so we add it + // to the list if it's not already there. + // + Object *obj; + words.Start_Get(); + while((obj = words.Get_Next()) != 0) + { + if (mystrcasecmp(token, ((String *)obj)->get()) == 0) + break; + } + if (obj == 0) + words.Add(new String(token)); + } + token = strtok(0, " "); + } + } +} + + +//***************************************************************************** +// void Endings::generateKey(char *word, String &key) +// Not needed. +void +Endings::generateKey(char *, String &) +{ +} + + +//***************************************************************************** +// void Endings::addWord(char *word) +// Not needed. +void +Endings::addWord(char *) +{ +} + + +//***************************************************************************** +// int Endings::openIndex() +// Dummy method. Just makde sure we don't actually create a database. +// +int +Endings::openIndex() +{ + String filename = config["endings_word2root_db"]; + word2root = Database::getDatabaseInstance(DB_BTREE); + if (word2root->OpenRead((char*)filename) == NOTOK) + return NOTOK; + + filename = config["endings_root2word_db"]; + root2word = Database::getDatabaseInstance(DB_BTREE); + if (root2word->OpenRead((char*)filename) == NOTOK) + return NOTOK; + + return OK; +} + + +//***************************************************************************** +// int Endings::writeDB() +// Dummy method. Just making sure we don't actually write anything. +// +int +Endings::writeDB() +{ + return OK; +} + + |