lyx_mirror/src/Thesaurus.cpp
Jürgen Spitzmüller 272e7097f2 * Thesaurus.cpp: fix thesaurus (bug #6656)
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@34226 a592a061-630c-0410-9148-cb99ea01b6c8
2010-04-20 07:30:58 +00:00

219 lines
4.7 KiB
C++

/**
* \file Thesaurus.cpp
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author John Levon
* \author Jürgen Spitzmüller
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "Thesaurus.h"
#include "LyXRC.h"
#include "support/FileNameList.h"
#include "support/debug.h"
#include "support/filetools.h"
#include "support/gettext.h"
#include "support/lstrings.h"
#include "support/os.h"
#include "support/mythes/mythes.hxx"
#include "frontends/alert.h"
#include <algorithm>
#include <cstring>
using namespace std;
using namespace lyx::support;
using namespace lyx::support::os;
namespace lyx {
namespace {
typedef std::map<docstring, MyThes *> Thesauri;
} // namespace anon
struct Thesaurus::Private
{
~Private()
{
for (Thesauri::iterator it = thes_.begin();
it != thes_.end(); ++it) {
delete it->second;
}
}
///
bool thesaurusAvailable(docstring const & lang) const
{
for (Thesauri::const_iterator it = thes_.begin();
it != thes_.end(); ++it) {
if (it->first == lang)
if (it->second)
return true;
}
return false;
}
///
typedef std::pair<std::string, std::string> ThesFiles;
///
ThesFiles getThesaurus(docstring const & lang);
/// add a thesaurus to the list
bool addThesaurus(docstring const & lang);
/// the thesauri
Thesauri thes_;
};
pair<string, string> Thesaurus::Private::getThesaurus(docstring const & lang)
{
string const thes_path = external_path(lyxrc.thesaurusdir_path);
LYXERR(Debug::FILES, "thesaurus path: " << thes_path);
if (thes_path.empty())
return make_pair(string(), string());
if (thesaurusAvailable(lang))
return make_pair(string(), string());
FileNameList const idx_files = FileName(thes_path).dirList("idx");
FileNameList const data_files = FileName(thes_path).dirList("dat");
string idx;
string data;
for (FileNameList::const_iterator it = idx_files.begin();
it != idx_files.end(); ++it) {
LYXERR(Debug::FILES, "found thesaurus idx file: " << it->onlyFileName());
if (contains(it->onlyFileName(), to_ascii(lang))) {
idx = it->absFilename();
LYXERR(Debug::FILES, "selected thesaurus idx file: " << idx);
break;
}
}
for (support::FileNameList::const_iterator it = data_files.begin();
it != data_files.end(); ++it) {
LYXERR(Debug::FILES, "found thesaurus data file: " << it->onlyFileName());
if (contains(it->onlyFileName(), to_ascii(lang))) {
data = it->absFilename();
LYXERR(Debug::FILES, "selected thesaurus data file: " << data);
break;
}
}
return make_pair(idx, data);
}
bool Thesaurus::Private::addThesaurus(docstring const & lang)
{
if (thesaurusAvailable(lang))
return true;
ThesFiles files = getThesaurus(lang);
string const idx = files.first;
string const data = files.second;
if (idx.empty() || data.empty())
return false;
char const * af = idx.c_str();
char const * df = data.c_str();
thes_[lang] = new MyThes(af, df);
return true;
}
bool Thesaurus::thesaurusAvailable(docstring const & lang) const
{
return d->thesaurusAvailable(lang);
}
bool Thesaurus::thesaurusInstalled(docstring const & lang) const
{
pair<string, string> files = d->getThesaurus(lang);
return (!files.first.empty() && !files.second.empty());
}
Thesaurus::Meanings Thesaurus::lookup(docstring const & t, docstring const & lang)
{
Meanings meanings;
MyThes * mythes = 0;
if (!d->addThesaurus(lang))
return meanings;
for (Thesauri::const_iterator it = d->thes_.begin();
it != d->thes_.end(); ++it) {
if (it->first == lang) {
mythes = it->second;
break;
}
}
if (!mythes)
return meanings;
string const encoding = mythes->get_th_encoding();
mentry * pmean;
string const text = to_iconv_encoding(support::lowercase(t), encoding);
int len = strlen(text.c_str());
int count = mythes->Lookup(text.c_str(), len, &pmean);
if (!count)
return meanings;
// don't change value of pmean or count
// they are needed for the CleanUpAfterLookup routine
mentry * pm = pmean;
docstring meaning;
docstring ret;
for (int i = 0; i < count; i++) {
meaning = from_iconv_encoding(string(pm->defn), encoding);
// remove silly item
if (support::prefixIs(meaning, '-'))
meaning = support::ltrim(meaning, "- ");
for (int j = 0; j < pm->count; j++) {
ret = from_iconv_encoding(string(pm->psyns[j]), encoding);
}
meanings[meaning].push_back(ret);
pm++;
}
// now clean up all allocated memory
mythes->CleanUpAfterLookup(&pmean, count);
for (Meanings::iterator it = meanings.begin();
it != meanings.end(); ++it)
sort(it->second.begin(), it->second.end());
return meanings;
}
Thesaurus::Thesaurus() : d(new Thesaurus::Private)
{
}
Thesaurus::~Thesaurus()
{
delete d;
}
// Global instance
Thesaurus thesaurus;
} // namespace lyx