diff options
Diffstat (limited to 'kspell2/plugins/ispell/ispell_checker.cpp')
| -rw-r--r-- | kspell2/plugins/ispell/ispell_checker.cpp | 505 |
1 files changed, 505 insertions, 0 deletions
diff --git a/kspell2/plugins/ispell/ispell_checker.cpp b/kspell2/plugins/ispell/ispell_checker.cpp new file mode 100644 index 000000000..42cc2c460 --- /dev/null +++ b/kspell2/plugins/ispell/ispell_checker.cpp @@ -0,0 +1,505 @@ +/* vim: set sw=8: -*- Mode: C++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ +/* kspell2 - adopted from Enchant + * Copyright (C) 2003 Dom Lachowicz + * Copyright (C) 2004 Zack Rusin <zack@kde.org> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + * + * In addition, as a special exception, Dom Lachowicz + * gives permission to link the code of this program with + * non-LGPL Spelling Provider libraries (eg: a MSFT Office + * spell checker backend) and distribute linked combinations including + * the two. You must obey the GNU Lesser General Public License in all + * respects for all of the code used other than said providers. If you modify + * this file, you may extend this exception to your version of the + * file, but you are not obligated to do so. If you do not wish to + * do so, delete this exception statement from your version. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include <string> +#include <vector> + +#include "sp_spell.h" +#include "ispell_checker.h" + +#include <qmap.h> +#include <qdir.h> +#include <qfileinfo.h> + +/***************************************************************************/ + +typedef struct str_ispell_map +{ + const char * lang; + const char * dict; + const char * enc; +} IspellMap; + +static const char *ispell_dirs [] = { + "/usr/lib/ispell", + "/usr/local/lib/ispell", + "/usr/local/share/ispell", + "/usr/share/ispell", + "/usr/pkg/lib", + 0 +}; +static const IspellMap ispell_map [] = { + {"ca" ,"catala.hash" ,"iso-8859-1" }, + {"ca_ES" ,"catala.hash" ,"iso-8859-1" }, + {"cs" ,"czech.hash" ,"iso-8859-2" }, + {"cs_CZ" ,"czech.hash" ,"iso-8859-2" }, + {"da" ,"dansk.hash" ,"iso-8859-1" }, + {"da_DK" ,"dansk.hash" ,"iso-8859-1" }, + {"de" ,"deutsch.hash" ,"iso-8859-1" }, + {"de_CH" ,"swiss.hash" ,"iso-8859-1" }, + {"de_AT" ,"deutsch.hash" ,"iso-8859-1" }, + {"de_DE" ,"deutsch.hash" ,"iso-8859-1" }, + {"el" ,"ellhnika.hash" ,"iso-8859-7" }, + {"el_GR" ,"ellhnika.hash" ,"iso-8859-7" }, + {"en" ,"british.hash" ,"iso-8859-1" }, + {"en_AU" ,"british.hash" ,"iso-8859-1" }, + {"en_BZ" ,"british.hash" ,"iso-8859-1" }, + {"en_CA" ,"british.hash" ,"iso-8859-1" }, + {"en_GB" ,"british.hash" ,"iso-8859-1" }, + {"en_IE" ,"british.hash" ,"iso-8859-1" }, + {"en_JM" ,"british.hash" ,"iso-8859-1" }, + {"en_NZ" ,"british.hash" ,"iso-8859-1" }, + {"en_TT" ,"british.hash" ,"iso-8859-1" }, + {"en_ZA" ,"british.hash" ,"iso-8859-1" }, + {"en_ZW" ,"british.hash" ,"iso-8859-1" }, + {"en_PH" ,"american.hash" ,"iso-8859-1" }, + {"en_US" ,"american.hash" ,"iso-8859-1" }, + {"eo" ,"esperanto.hash" ,"iso-8859-3" }, + {"es" ,"espanol.hash" ,"iso-8859-1" }, + {"es_AR" ,"espanol.hash" ,"iso-8859-1" }, + {"es_BO" ,"espanol.hash" ,"iso-8859-1" }, + {"es_CL" ,"espanol.hash" ,"iso-8859-1" }, + {"es_CO" ,"espanol.hash" ,"iso-8859-1" }, + {"es_CR" ,"espanol.hash" ,"iso-8859-1" }, + {"es_DO" ,"espanol.hash" ,"iso-8859-1" }, + {"es_EC" ,"espanol.hash" ,"iso-8859-1" }, + {"es_ES" ,"espanol.hash" ,"iso-8859-1" }, + {"es_GT" ,"espanol.hash" ,"iso-8859-1" }, + {"es_HN" ,"espanol.hash" ,"iso-8859-1" }, + {"es_MX" ,"espanol.hash" ,"iso-8859-1" }, + {"es_NI" ,"espanol.hash" ,"iso-8859-1" }, + {"es_PA" ,"espanol.hash" ,"iso-8859-1" }, + {"es_PE" ,"espanol.hash" ,"iso-8859-1" }, + {"es_PR" ,"espanol.hash" ,"iso-8859-1" }, + {"es_PY" ,"espanol.hash" ,"iso-8859-1" }, + {"es_SV" ,"espanol.hash" ,"iso-8859-1" }, + {"es_UY" ,"espanol.hash" ,"iso-8859-1" }, + {"es_VE" ,"espanol.hash" ,"iso-8859-1" }, + {"fi" ,"finnish.hash" ,"iso-8859-1" }, + {"fi_FI" ,"finnish.hash" ,"iso-8859-1" }, + {"fr" ,"francais.hash" ,"iso-8859-1" }, + {"fr_BE" ,"francais.hash" ,"iso-8859-1" }, + {"fr_CA" ,"francais.hash" ,"iso-8859-1" }, + {"fr_CH" ,"francais.hash" ,"iso-8859-1" }, + {"fr_FR" ,"francais.hash" ,"iso-8859-1" }, + {"fr_LU" ,"francais.hash" ,"iso-8859-1" }, + {"fr_MC" ,"francais.hash" ,"iso-8859-1" }, + {"hu" ,"hungarian.hash" ,"iso-8859-2" }, + {"hu_HU" ,"hungarian.hash" ,"iso-8859-2" }, + {"ga" ,"irish.hash" ,"iso-8859-1" }, + {"ga_IE" ,"irish.hash" ,"iso-8859-1" }, + {"gl" ,"galician.hash" ,"iso-8859-1" }, + {"gl_ES" ,"galician.hash" ,"iso-8859-1" }, + {"ia" ,"interlingua.hash" ,"iso-8859-1" }, + {"it" ,"italian.hash" ,"iso-8859-1" }, + {"it_IT" ,"italian.hash" ,"iso-8859-1" }, + {"it_CH" ,"italian.hash" ,"iso-8859-1" }, + {"la" ,"mlatin.hash" ,"iso-8859-1" }, + {"la_IT" ,"mlatin.hash" ,"iso-8859-1" }, + {"lt" ,"lietuviu.hash" ,"iso-8859-13" }, + {"lt_LT" ,"lietuviu.hash" ,"iso-8859-13" }, + {"nl" ,"nederlands.hash" ,"iso-8859-1" }, + {"nl_NL" ,"nederlands.hash" ,"iso-8859-1" }, + {"nl_BE" ,"nederlands.hash" ,"iso-8859-1" }, + {"nb" ,"norsk.hash" ,"iso-8859-1" }, + {"nb_NO" ,"norsk.hash" ,"iso-8859-1" }, + {"nn" ,"nynorsk.hash" ,"iso-8859-1" }, + {"nn_NO" ,"nynorsk.hash" ,"iso-8859-1" }, + {"no" ,"norsk.hash" ,"iso-8859-1" }, + {"no_NO" ,"norsk.hash" ,"iso-8859-1" }, + {"pl" ,"polish.hash" ,"iso-8859-2" }, + {"pl_PL" ,"polish.hash" ,"iso-8859-2" }, + {"pt" ,"brazilian.hash" ,"iso-8859-1" }, + {"pt_BR" ,"brazilian.hash" ,"iso-8859-1" }, + {"pt_PT" ,"portugues.hash" ,"iso-8859-1" }, + {"ru" ,"russian.hash" ,"koi8-r" }, + {"ru_MD" ,"russian.hash" ,"koi8-r" }, + {"ru_RU" ,"russian.hash" ,"koi8-r" }, + {"sc" ,"sardinian.hash" ,"iso-8859-1" }, + {"sc_IT" ,"sardinian.hash" ,"iso-8859-1" }, + {"sk" ,"slovak.hash" ,"iso-8859-2" }, + {"sk_SK" ,"slovak.hash" ,"iso-8859-2" }, + {"sl" ,"slovensko.hash" ,"iso-8859-2" }, + {"sl_SI" ,"slovensko.hash" ,"iso-8859-2" }, + {"sv" ,"svenska.hash" ,"iso-8859-1" }, + {"sv_SE" ,"svenska.hash" ,"iso-8859-1" }, + {"uk" ,"ukrainian.hash" ,"koi8-u" }, + {"uk_UA" ,"ukrainian.hash" ,"koi8-u" }, + {"yi" ,"yiddish-yivo.hash" ,"utf-8" } +}; + +static const size_t size_ispell_map = ( sizeof(ispell_map) / sizeof((ispell_map)[0]) ); +static QMap<QString, QString> ispell_dict_map; + + +void +ISpellChecker::try_autodetect_charset(const char * const inEncoding) +{ + if (inEncoding && strlen(inEncoding)) + { + m_translate_in = QTextCodec::codecForName(inEncoding); + } +} + +/***************************************************************************/ +/***************************************************************************/ + +ISpellChecker::ISpellChecker() + : deftflag(-1), + prefstringchar(-1), + m_bSuccessfulInit(false), + m_BC(NULL), + m_cd(NULL), + m_cl(NULL), + m_cm(NULL), + m_ho(NULL), + m_nd(NULL), + m_so(NULL), + m_se(NULL), + m_ti(NULL), + m_te(NULL), + m_hashstrings(NULL), + m_hashtbl(NULL), + m_pflaglist(NULL), + m_sflaglist(NULL), + m_chartypes(NULL), + m_infile(NULL), + m_outfile(NULL), + m_askfilename(NULL), + m_Trynum(0), + m_translate_in(0) +{ + memset(m_sflagindex,0,sizeof(m_sflagindex)); + memset(m_pflagindex,0,sizeof(m_pflagindex)); +} + +#ifndef FREEP +#define FREEP(p) do { if (p) free(p); } while (0) +#endif + +ISpellChecker::~ISpellChecker() +{ + if (m_bSuccessfulInit) { + // only cleanup our mess if we were successfully initialized + + clearindex (m_pflagindex); + clearindex (m_sflagindex); + } + + FREEP(m_hashtbl); + FREEP(m_hashstrings); + FREEP(m_sflaglist); + FREEP(m_chartypes); + + delete m_translate_in; + m_translate_in = 0; +} + +bool +ISpellChecker::checkWord( const QString& utf8Word ) +{ + ichar_t iWord[INPUTWORDLEN + MAXAFFIXLEN]; + if (!m_bSuccessfulInit) + return false; + + if (!utf8Word || utf8Word.length() >= (INPUTWORDLEN + MAXAFFIXLEN) || utf8Word.isEmpty()) + return false; + + bool retVal = false; + QCString out; + if (!m_translate_in) + return false; + else { + /* convert to 8bit string and null terminate */ + int len_out = utf8Word.length(); + + out = m_translate_in->fromUnicode( utf8Word, len_out ); + } + + if (!strtoichar(iWord, out.data(), INPUTWORDLEN + MAXAFFIXLEN, 0)) + { + if (good(iWord, 0, 0, 1, 0) == 1 || + compoundgood(iWord, 1) == 1) + { + retVal = true; + } + } + + return retVal; +} + +QStringList +ISpellChecker::suggestWord(const QString& utf8Word) +{ + ichar_t iWord[INPUTWORDLEN + MAXAFFIXLEN]; + int c; + + if (!m_bSuccessfulInit) + return QStringList(); + + if (utf8Word.isEmpty() || utf8Word.length() >= (INPUTWORDLEN + MAXAFFIXLEN) || + utf8Word.length() == 0) + return QStringList(); + + QCString out; + if (!m_translate_in) + return QStringList(); + else + { + /* convert to 8bit string and null terminate */ + + int len_out = utf8Word.length(); + out = m_translate_in->fromUnicode( utf8Word, len_out ); + } + + if (!strtoichar(iWord, out.data(), INPUTWORDLEN + MAXAFFIXLEN, 0)) + makepossibilities(iWord); + else + return QStringList(); + + QStringList sugg_arr; + for (c = 0; c < m_pcount; c++) + { + QString utf8Word; + + if (!m_translate_in) + { + /* copy to 8bit string and null terminate */ + utf8Word = QString::fromUtf8( m_possibilities[c] ); + } + else + { + /* convert to 32bit string and null terminate */ + utf8Word = m_translate_in->toUnicode( m_possibilities[c] ); + } + + sugg_arr.append( utf8Word ); + } + + return sugg_arr; +} + +static void +s_buildHashNames (std::vector<std::string> & names, const char * dict) +{ + const char * tmp = 0; + int i = 0; + + names.clear (); + + while ( (tmp = ispell_dirs[i++]) ) { + QCString maybeFile = QCString( tmp ) + '/'; + maybeFile += dict; + names.push_back( maybeFile.data() ); + } +} + +static void +s_allDics() +{ + const char * tmp = 0; + int i = 0; + + while ( (tmp = ispell_dirs[i++]) ) { + QDir dir( tmp ); + QStringList lst = dir.entryList( "*.hash" ); + for ( QStringList::Iterator it = lst.begin(); it != lst.end(); ++it ) { + QFileInfo info( *it ); + for (size_t i = 0; i < size_ispell_map; i++) + { + const IspellMap * mapping = (const IspellMap *)(&(ispell_map[i])); + if (!strcmp (info.fileName().latin1(), mapping->dict)) + { + ispell_dict_map.insert( mapping->lang, *it ); + } + } + } + } +} + +QValueList<QString> +ISpellChecker::allDics() +{ + if ( ispell_dict_map.empty() ) + s_allDics(); + + return ispell_dict_map.keys(); +} + +QString +ISpellChecker::loadDictionary (const char * szdict) +{ + std::vector<std::string> dict_names; + + s_buildHashNames (dict_names, szdict); + + for (size_t i = 0; i < dict_names.size(); i++) + { + if (linit(const_cast<char*>(dict_names[i].c_str())) >= 0) + return dict_names[i].c_str(); + } + + return QString::null; +} + +/*! + * Load ispell dictionary hash file for given language. + * + * \param szLang - The language tag ("en-US") we want to use + * \return The name of the dictionary file + */ +bool +ISpellChecker::loadDictionaryForLanguage ( const char * szLang ) +{ + QString hashname; + + const char * encoding = NULL; + const char * szFile = NULL; + + for (size_t i = 0; i < size_ispell_map; i++) + { + const IspellMap * mapping = (const IspellMap *)(&(ispell_map[i])); + if (!strcmp (szLang, mapping->lang)) + { + szFile = mapping->dict; + encoding = mapping->enc; + break; + } + } + + if (!szFile || !strlen(szFile)) + return false; + + alloc_ispell_struct(); + + hashname = loadDictionary(szFile); + if (hashname.isEmpty()) + return false; + + // one of the two above calls succeeded + setDictionaryEncoding (hashname, encoding); + + return true; +} + +void +ISpellChecker::setDictionaryEncoding( const QString& hashname, const char * encoding ) +{ + /* Get Hash encoding from XML file. This should always work! */ + try_autodetect_charset(encoding); + + if (m_translate_in) + { + /* We still have to setup prefstringchar*/ + prefstringchar = findfiletype("utf8", 1, deftflag < 0 ? &deftflag + : static_cast<int *>(NULL)); + + if (prefstringchar < 0) + { + std::string teststring; + for(int n1 = 1; n1 <= 15; n1++) + { + teststring = "latin" + n1; + prefstringchar = findfiletype(teststring.c_str(), 1, + deftflag < 0 ? &deftflag : static_cast<int *>(NULL)); + if (prefstringchar >= 0) + break; + } + } + + return; /* success */ + } + + /* Test for UTF-8 first */ + prefstringchar = findfiletype("utf8", 1, deftflag < 0 ? &deftflag : static_cast<int *>(NULL)); + if (prefstringchar >= 0) + { + m_translate_in = QTextCodec::codecForName("utf8"); + } + + if (m_translate_in) + return; /* success */ + + /* Test for "latinN" */ + if (!m_translate_in) + { + /* Look for "altstringtype" names from latin1 to latin15 */ + for(int n1 = 1; n1 <= 15; n1++) + { + QString teststring = QString("latin%1").arg(n1); + prefstringchar = findfiletype(teststring.latin1(), 1, + deftflag < 0 ? &deftflag : static_cast<int *>(NULL)); + if (prefstringchar >= 0) + { + //FIXME: latin1 might be wrong + m_translate_in = QTextCodec::codecForName( teststring.latin1() ); + break; + } + } + } + + /* If nothing found, use latin1 */ + if (!m_translate_in) + { + m_translate_in = QTextCodec::codecForName("latin1"); + } +} + +bool +ISpellChecker::requestDictionary(const char *szLang) +{ + if (!loadDictionaryForLanguage (szLang)) + { + // handle a shortened version of the language tag: en_US => en + std::string shortened_dict (szLang); + size_t uscore_pos; + + if ((uscore_pos = shortened_dict.rfind ('_')) != ((size_t)-1)) { + shortened_dict = shortened_dict.substr(0, uscore_pos); + if (!loadDictionaryForLanguage (shortened_dict.c_str())) + return false; + } else + return false; + } + + m_bSuccessfulInit = true; + + if (prefstringchar < 0) + m_defdupchar = 0; + else + m_defdupchar = prefstringchar; + + return true; +} |