Abdelrazak Younes <you...@lyx.org> writes:
> No, I really meant that implementing that in LyX directly is easier
> that implementing that in Enchant if it was there already.

If you like coding in Objective C++, yes. But this is really a weird
beast.
I attach the file from enchant as reference.

> I am not sure he was talking about Enchant, maybe about directly
> supporting the native spellchecker within LyX. So I guess his problem
> is to know how to compile his code.

I was talking about the applespell support in enchant. Note that we
might be able to turn the file from enchant into a proper backend for
our own use.

> JMarc, I remember that Stefan did some Mac specific clipboard
> enhancement in support, maybe you could give that a look?

Uh?

JMarc


/* vim: set sw=8: -*- Mode: C; tab-width: 8; indent-tabs-mode: t; 
c-basic-offset: 8 -*- */
/* enchant
 * Copyright (C) 2004 Remi Payette
 * Copyright (C) 2004 Francis James Franklin
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * This program 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 General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  
 * 02110-1301, USA.
 */

#include <glib.h>
#include <gmodule.h>

#include "applespell_checker.h"

AppleSpellChecker::AppleSpellChecker()
{
        // NSLog (@"AppleSpellChecker::AppleSpellChecker");

        m_checker = [NSSpellChecker sharedSpellChecker];

        m_languages = [[NSMutableDictionary alloc] initWithCapacity:16];
}

AppleSpellChecker::~AppleSpellChecker()
{
        // NSLog (@"AppleSpellChecker::~AppleSpellChecker");

        if (m_languages)
                {
                        [m_languages release];
                        m_languages = 0;
                }
}

void AppleSpellChecker::parseConfigFile (const char * configFile)
{
        if (!m_languages || !configFile)
                return;

        // NSLog (@"AppleSpellChecker::parseConfigFile: file=\"%s\"", 
configFile);

        if (FILE * in = fopen (configFile, "r"))
                {
                        char line[1024];
                        char code[1024];
                        char name[1024];
                        char lang[1024];

                        while (fgets (line, sizeof(line), in))
                                if (sscanf (line, "%s %s %s", code, name, lang) 
== 3)
                                        {
                                                NSString * key      = 
[[NSString alloc] initWithUTF8String:code];
                                                NSString * value    = 
[[NSString alloc] initWithUTF8String:name];
                                                NSString * language = 
[[NSString alloc] initWithUTF8String:lang];

                                                if (key && value)
                                                        {
                                                                // NSLog 
(@"AppleSpellChecker: %@ -> %@ (%@)", key, value, language);
                                                                [m_languages 
setObject:value forKey:key];
                                                        }

                                                if (key)
                                                        [key release];
                                                if (value)
                                                        [value release];
                                                if (language)
                                                        [language release];
                                        }
                        fclose (in);
                }
}

NSString * AppleSpellChecker::dictionaryForCode (NSString * code)
{
        if (!m_languages)
                return 0;

        return [m_languages objectForKey:code];
}

bool AppleSpellChecker::checkWord (const char * word, size_t len, NSString * 
lang)
{
        // NSLog(@"AppleSpellChecker::checkWord: lang=\"%...@\"", lang);

        if (!m_checker || !lang)
                return false;

        NSString * str = [[NSString alloc] initWithBytes:word length:len 
encoding:NSUTF8StringEncoding];
        if (!str)
                return false;

        // NSLog (@"AppleSpellChecker::checkWord: word=\"%...@\"", str);

        [m_checker setLanguage:lang];

        NSRange result = [m_checker checkSpellingOfString:str startingAt:0];

        [str release];

        return (result.length ? true : false);
}

char ** AppleSpellChecker::suggestWord (const char * const word, size_t len, 
size_t * nsug, NSString * lang)
{
        // NSLog (@"AppleSpellChecker::suggestWord: lang=\"%...@\"", lang);

        if (!m_checker || !word || !len || !nsug || !lang)
                return 0;

        *nsug = 0;

        [m_checker setLanguage:lang];

        NSString * str = [[NSString alloc] initWithBytes:word length:len 
encoding:NSUTF8StringEncoding];
        if (!str)
                return 0;

        // NSLog (@"AppleSpellChecker::suggestWord: word=\"%...@\"", str);

        NSArray * result = [m_checker guessesForWord:str];

        [str release];

        char ** sug = 0;

        if (unsigned int count = [result count])
                {
                        sug = g_new0 (char *, static_cast<size_t>(count) + 1);
                        if (sug)
                                {
                                        for (unsigned int i = 0; i < count; i++)
                                                {
                                                        str = [result 
objectAtIndex:i];

                                                        sug[*nsug] = g_strdup 
([str UTF8String]);

                                                        if (sug[*nsug])
                                                                *nsug = *nsug + 
1;
                                                }
                                }
                }
        return sug;
}

NSString * AppleSpellChecker::requestDictionary (const char * const code)
{
        // NSLog (@"AppleSpellChecker::requestDictionary: code=\"%s\"", code);

        if (!m_checker || !code)
                return 0;

        NSString * dictionary = dictionaryForCode ([NSString 
stringWithUTF8String:code]);
        if (dictionary)
                {
                        NSString * language = [m_checker language];
                        // NSLog (@"AppleSpellChecker::requestDictionary: ld 
language=\"%...@\", new language=\"%...@\"", language, dictionary);
                        if (![m_checker setLanguage:dictionary])
                                {
                                        // NSLog 
(@"AppleSpellChecker::requestDictionary: failed to set new language!");
                                        dictionary = 0;
                                }
                        if (language)
                                [m_checker setLanguage:language];
                }
        return dictionary;
}

/*
 * Enchant
 */

static char ** appleSpell_dict_suggest (EnchantDict * me, const char * const 
word, size_t len, size_t * out_n_suggs)
{
        NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];

        // NSLog (@"appleSpell_dict_suggest word=\"%s\"", word);

        if (!me || !word || !len || !out_n_suggs)
                {
                        if (pool) [pool release];
                        return 0;
                }

        char ** result = 0;

        if (AppleSpellDictionary * ASD = static_cast<AppleSpellDictionary 
*>(me->user_data))
                {
                        result = ASD->AppleSpell->suggestWord (word, len, 
out_n_suggs, ASD->DictionaryName);
                }

        if (pool) [pool release];
        return result;
}

static int appleSpell_dict_check (EnchantDict * me, const char * const word, 
size_t len)
{
        NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];

        // NSLog (@"appleSpell_dict_check");

        if (!me || !word || !len)
                {
                        if (pool) [pool release];
                        return 0;
                }

        int result = 0;

        if (AppleSpellDictionary * ASD = static_cast<AppleSpellDictionary 
*>(me->user_data))
                {
                        result = ASD->AppleSpell->checkWord (word, len, 
ASD->DictionaryName);
                }

        if (pool) [pool release];
        return result;
}

static EnchantDict * appleSpell_provider_request_dict (EnchantProvider * me, 
const char * const tag)
{
        NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];

        // NSLog (@"appleSpell_provider_request_dict");

        if (!me || !tag)
                {
                        if (pool) [pool release];
                        return 0;
                }

        AppleSpellChecker * checker = static_cast<AppleSpellChecker 
*>(me->user_data);
        if (!checker)
                {
                        if (pool) [pool release];
                        return 0;
                }

        EnchantDict * dict = g_new0 (EnchantDict, 1);
        if (!dict)
                {
                        if (pool) [pool release];
                        return 0;
                }

        dict->check            = appleSpell_dict_check;
        dict->suggest          = appleSpell_dict_suggest;

        AppleSpellDictionary * ASD = g_new0 (AppleSpellDictionary, 1);
        if (!ASD)
                {
                        g_free (dict);
                        if (pool) [pool release];
                        return 0;
                }

        ASD->AppleSpell     = checker;
        ASD->DictionaryName = checker->requestDictionary (tag);

        if (ASD->DictionaryName)
                {
                        [ASD->DictionaryName retain];
                        // NSLog (@"appleSpell_provider_request_dict: providing 
dictionary \"%...@\"", ASD->DictionaryName);
                        dict->user_data = (void *) ASD;
                }
        else
                {
                        g_free (ASD);
                        g_free (dict);
                        dict = 0;
                }
        
        if (pool) [pool release];
        return dict;
}

static void appleSpell_provider_dispose_dict (EnchantProvider * me, EnchantDict 
* dict)
{
        NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];

        // NSLog (@"appleSpell_provider_dispose_dict");

        if (dict)
                {
                        AppleSpellDictionary * ASD = 
static_cast<AppleSpellDictionary *>(dict->user_data);
                        if (ASD)
                                {
                                        [ASD->DictionaryName release];
                                        g_free (ASD);
                                }
                        g_free (dict);
                }
        if (pool) [pool release];
}

static int appleSpell_provider_dictionary_exists (EnchantProvider * me, const 
char * const tag)
{
        NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];

        // NSLog (@"appleSpell_provider_dictionary_exists: tag=\"%s\"", tag);

        int result = 0;

        AppleSpellChecker * checker = static_cast<AppleSpellChecker 
*>(me->user_data);
        if (checker)
                result = (checker->requestDictionary (tag) ? 1 : 0);

        if (pool) [pool release];
        return result;
}

static void appleSpell_provider_dispose (EnchantProvider * me)
{
        NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];

        // NSLog (@"appleSpell_provider_dispose");

        if (me)
                {
                        AppleSpellChecker * checker = 
static_cast<AppleSpellChecker *>(me->user_data);
                        if (checker)
                                delete checker;

                        g_free (me);
                }
        if (pool) [pool release];
}

static const char * appleSpell_provider_identify (EnchantProvider * me)
{
        return "AppleSpell";
}

static const char * appleSpell_provider_describe (EnchantProvider * me)
{
        return "AppleSpell Provider";
}

static void appleSpell_provider_free_string_list (EnchantProvider * me, char 
**str_list)
{
        NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
        
        // NSLog (@"appleSpell_provider_free_suggestions");
        
        if (str_list)
                g_strfreev (str_list);
        
        if (pool) [pool release];
}

extern "C" {
        ENCHANT_MODULE_EXPORT (EnchantProvider *) 
             init_enchant_provider (void)
        {
                NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];

                // NSLog (@"init_enchant_provider");

                EnchantProvider * provider = g_new0 (EnchantProvider, 1);
                if (!provider)
                        {
                                if (pool) [pool release];
                                return 0;
                        }

                provider->dispose           = appleSpell_provider_dispose;
                provider->request_dict      = appleSpell_provider_request_dict;
                provider->dispose_dict      = appleSpell_provider_dispose_dict;
                provider->dictionary_exists = 
appleSpell_provider_dictionary_exists;
                provider->identify          = appleSpell_provider_identify;
                provider->describe          = appleSpell_provider_describe;
                provider->free_string_list  = 
appleSpell_provider_free_string_list;

                AppleSpellChecker * checker = 0;
                try
                        {
                                checker = new AppleSpellChecker;
                        }
                catch (...)
                        {
                                checker = 0;
                        }
                if (checker)
                        {
                                provider->user_data = (void *) checker;
                        }
                else
                        {
                                g_free (provider);
                                provider = 0;
                        }

                if (pool) [pool release];
                return provider;
        }

        static bool s_bReloadSelf = true;

        ENCHANT_MODULE_EXPORT (void)
             configure_enchant_provider (EnchantProvider * me, const char * 
module_dir)
        {
                NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];

                // NSLog (@"configure_enchant_provider");

                if (!me || !module_dir)
                        {
                                if (pool) [pool release];
                                return;
                        }

                AppleSpellChecker * checker = static_cast<AppleSpellChecker 
*>(me->user_data);
                if (checker)
                        {
                                if (s_bReloadSelf)
                                        if (gchar * moduleFile = 
g_build_filename (module_dir, "AppleSpell.so", NULL))
                                                {
                                                        /* ugly hack :-(
                                                         * Darwin linker 
doesn't like unloading Obj-C modules;
                                                         * reload once to 
suppress unloading...
                                                         */
                                                        g_module_open 
(moduleFile, (GModuleFlags) 0);
                                                        
                                                        g_free (moduleFile);

                                                        s_bReloadSelf = false;
                                                }

                                if (gchar * configFile = g_build_filename 
(module_dir, "AppleSpell.config", NULL))
                                        {
                                                checker->parseConfigFile 
(configFile);

                                                g_free (configFile);
                                        }
                        }

                if (pool) [pool release];
                return;
        }
}

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