Aegisub/aegisub/src/thesaurus.cpp

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// Copyright (c) 2012, Thomas Goyne <plorkyeran@aegisub.org>
//
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
//
// Aegisub Project http://www.aegisub.org/
/// @file thesaurus.cpp
/// @brief Thesaurus implementation
/// @ingroup thesaurus
///
#include "config.h"
#include "thesaurus.h"
#include "options.h"
#include <boost/format.hpp>
#include <boost/algorithm/string/case_conv.hpp>
#include <libaegisub/fs.h>
#include <libaegisub/log.h>
#include <libaegisub/path.h>
#include <libaegisub/thesaurus.h>
Thesaurus::Thesaurus()
: lang_listener(OPT_SUB("Tool/Thesaurus/Language", &Thesaurus::OnLanguageChanged, this))
, dict_path_listener(OPT_SUB("Path/Dictionary", &Thesaurus::OnPathChanged, this))
{
OnLanguageChanged();
}
Thesaurus::~Thesaurus() {
// Explicit empty destructor needed for scoped_ptr with incomplete types
}
void Thesaurus::Lookup(std::string word, std::vector<Entry> *result) {
if (!impl.get()) return;
boost::to_lower(word);
impl->Lookup(word, result);
}
std::vector<std::string> Thesaurus::GetLanguageList() const {
if (!languages.empty()) return languages;
std::vector<std::string> idx, dat;
// Get list of dictionaries
auto path = config::path->Decode("?data/dictionaries/");
agi::fs::DirectoryIterator(path, "th_*.idx").GetAll(idx);
agi::fs::DirectoryIterator(path, "th_*.dat").GetAll(dat);
path = config::path->Decode(OPT_GET("Path/Dictionary")->GetString());
agi::fs::DirectoryIterator(path, "th_*.idx").GetAll(idx);
agi::fs::DirectoryIterator(path, "th_*.dat").GetAll(dat);
if (idx.empty() || dat.empty()) return languages;
sort(begin(idx), end(idx));
sort(begin(dat), end(dat));
// Drop extensions and the th_ prefix
for (auto& fn : idx) fn = fn.substr(3, fn.size() - 7);
for (auto& fn : dat) fn = fn.substr(3, fn.size() - 7);
// Verify that each idx has a dat
for (size_t i = 0, j = 0; i < idx.size() && j < dat.size(); ) {
int cmp = idx[i].compare(dat[j]);
if (cmp < 0) ++i;
else if (cmp > 0) ++j;
else {
// Don't insert a language twice if it's in both the user dir and
// the app's dir
if (languages.empty() || dat[j] != languages.back())
languages.push_back(dat[j]);
++i;
++j;
}
}
return languages;
}
void Thesaurus::OnLanguageChanged() {
impl.reset();
auto language = OPT_GET("Tool/Thesaurus/Language")->GetString();
if (language.empty()) return;
auto path = config::path->Decode(OPT_GET("Path/Dictionary")->GetString() + "/");
// Get index and data paths
auto idxpath = path/str(boost::format("th_%s.idx") % language);
auto datpath = path/str(boost::format("th_%s.dat") % language);
// If they aren't in the user dictionary path, check the application directory
if (!agi::fs::FileExists(idxpath) || !agi::fs::FileExists(datpath)) {
path = config::path->Decode("?data/dictionaries/");
idxpath = path/str(boost::format("th_%s.idx") % language);
datpath = path/str(boost::format("th_%s.dat") % language);
if (!agi::fs::FileExists(idxpath) || !agi::fs::FileExists(datpath)) return;
}
LOG_I("thesaurus/file") << "Using thesaurus: " << datpath;
impl.reset(new agi::Thesaurus(datpath, idxpath));
}
void Thesaurus::OnPathChanged() {
languages.clear();
}