lyx_mirror/src/ASpell.cpp

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/**
* \file ASpell.cpp
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Kevin Atkinson
* \author John Levon
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "support/debug.h"
#include <aspell.h>
#include "ASpell_local.h"
#include "LyXRC.h"
#include "WordLangTuple.h"
#include <boost/assert.hpp>
using namespace std;
namespace lyx {
ASpell::ASpell(BufferParams const &, string const & lang)
: els(0), spell_error_object(0)
{
addSpeller(lang);
}
ASpell::~ASpell()
{
if (spell_error_object) {
delete_aspell_can_have_error(spell_error_object);
spell_error_object = 0;
}
if (els)
delete_aspell_string_enumeration(els);
Spellers::iterator it = spellers_.begin();
Spellers::iterator end = spellers_.end();
for (; it != end; ++it) {
aspell_speller_save_all_word_lists(it->second.speller);
delete_aspell_speller(it->second.speller);
delete_aspell_config(it->second.config);
}
}
void ASpell::addSpeller(string const & lang)
{
AspellConfig * config = new_aspell_config();
// FIXME The aspell documentation says to use "lang"
aspell_config_replace(config, "language-tag", lang.c_str());
// Set the encoding to utf-8.
// aspell does also understand "ucs-4", so we would not need a
// conversion in theory, but if this is used it expects all
// char const * arguments to be a cast from uint const *, and it
// seems that this uint is not compatible with our char_type on some
// platforms (cygwin, OS X). Therefore we use utf-8, that does
// always work.
aspell_config_replace(config, "encoding", "utf-8");
if (lyxrc.isp_accept_compound)
// Consider run-together words as legal compounds
aspell_config_replace(config, "run-together", "true");
else
// Report run-together words as errors
aspell_config_replace(config, "run-together", "false");
AspellCanHaveError * err = new_aspell_speller(config);
if (spell_error_object)
delete_aspell_can_have_error(spell_error_object);
spell_error_object = 0;
if (aspell_error_number(err) == 0) {
Speller m;
m.speller = to_aspell_speller(err);
m.config = config;
spellers_[lang] = m;
} else {
spell_error_object = err;
}
}
ASpell::Result ASpell::check(WordLangTuple const & word)
{
Result res = UNKNOWN_WORD;
Spellers::iterator it = spellers_.find(word.lang_code());
if (it == spellers_.end()) {
addSpeller(word.lang_code());
it = spellers_.find(word.lang_code());
// FIXME
if (it == spellers_.end())
return res;
}
AspellSpeller * m = it->second.speller;
int const word_ok = aspell_speller_check(m, to_utf8(word.word()).c_str(), -1);
BOOST_ASSERT(word_ok != -1);
if (word_ok)
return OK;
AspellWordList const * sugs =
aspell_speller_suggest(m, to_utf8(word.word()).c_str(), -1);
BOOST_ASSERT(sugs != 0);
els = aspell_word_list_elements(sugs);
if (aspell_word_list_empty(sugs))
res = UNKNOWN_WORD;
else
res = SUGGESTED_WORDS;
return res;
}
void ASpell::insert(WordLangTuple const & word)
{
Spellers::iterator it = spellers_.find(word.lang_code());
if (it != spellers_.end())
aspell_speller_add_to_personal(it->second.speller, to_utf8(word.word()).c_str(), -1);
}
void ASpell::accept(WordLangTuple const & word)
{
Spellers::iterator it = spellers_.find(word.lang_code());
if (it != spellers_.end())
aspell_speller_add_to_session(it->second.speller, to_utf8(word.word()).c_str(), -1);
}
docstring const ASpell::nextMiss()
{
char const * str = 0;
if (els)
str = aspell_string_enumeration_next(els);
return (str ? from_utf8(str) : docstring());
}
docstring const ASpell::error()
{
char const * err = 0;
if (spell_error_object && aspell_error_number(spell_error_object) != 0)
err = aspell_error_message(spell_error_object);
// FIXME UNICODE: err is not in UTF8, but probably the locale encoding
return (err ? from_utf8(err) : docstring());
}
} // namespace lyx