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/*
* Copyright (c) 2011 Vlad Voicu
* Licensed under the Simplified BSD license.
* See Documentation/Licenses/BSD-simplified.txt for more information.
*/
/*
* Copyright (c) 2016 Isode Limited.
* All rights reserved.
* See the COPYING file for more information.
*/
#include <SwifTools/HunspellChecker.h>
#include <algorithm>
#include <boost/algorithm/string.hpp>
#include <boost/filesystem.hpp>
#include <boost/regex.hpp>
#include <hunspell/hunspell.hxx>
#include <Swiften/Base/Log.h>
namespace Swift {
static std::vector<std::string> recursiveFileSearch(const std::vector<std::string>& paths, const boost::regex& regex) {
std::vector<std::string> matches;
for (auto& path : paths) {
if (boost::filesystem::exists(path)) {
boost::cmatch what;
for (auto filename : boost::make_iterator_range(boost::filesystem::directory_iterator(path), boost::filesystem::directory_iterator())) {
if (boost::filesystem::is_regular_file(filename) && boost::regex_match(filename.path().c_str(), what, regex)) {
matches.push_back(filename.path().string());
}
}
}
}
return matches;
}
HunspellChecker::HunspellChecker() {
}
HunspellChecker::~HunspellChecker() {
}
std::vector<std::string> HunspellChecker::hunspellDictionaryPaths() const {
// The following list of paths comes from the source of the Hunspell command line tool.
std::vector<std::string> paths = {
"/usr/share/hunspell",
"/usr/share/myspell",
"/usr/share/myspell/dicts",
"/Library/Spelling",
"/opt/openoffice.org/basis3.0/share/dict/ooo",
"/usr/lib/openoffice.org/basis3.0/share/dict/ooo",
"/opt/openoffice.org2.4/share/dict/ooo",
"/usr/lib/openoffice.org2.4/share/dict/ooo",
"/opt/openoffice.org2.3/share/dict/ooo",
"/usr/lib/openoffice.org2.3/share/dict/ooo",
"/opt/openoffice.org2.2/share/dict/ooo",
"/usr/lib/openoffice.org2.2/share/dict/ooo",
"/opt/openoffice.org2.1/share/dict/ooo",
"/usr/lib/openoffice.org2.1/share/dict/ooo",
"/opt/openoffice.org2.0/share/dict/ooo",
"/usr/lib/openoffice.org2.0/share/dict/ooo"
};
if (std::getenv("DICPATH")) {
std::string dicpathEnvironment(std::getenv("DICPATH"));
std::vector<std::string> dicpaths;
boost::split(dicpaths,dicpathEnvironment,boost::is_any_of(":"));
paths.insert(paths.begin(), dicpaths.begin(), dicpaths.end());
}
return paths;
}
bool HunspellChecker::isAutomaticallyDetectingLanguage() {
return false;
}
void HunspellChecker::setActiveLanguage(const std::string& language) {
auto dictionaries = detectedDictionaries();
if (dictionaries.find(language) != dictionaries.end()) {
SWIFT_LOG(debug) << "Initialized Hunspell with dic,aff files " << dictionaries[language].dicPath << " , " << dictionaries[language].affPath << std::endl;
speller_ = std::unique_ptr<Hunspell>(new Hunspell(dictionaries[language].affPath.c_str(), dictionaries[language].dicPath.c_str()));
activeLangauge_ = language;
}
else {
SWIFT_LOG(warning) << "Unsupported language '" << language << "'" << std::endl;
}
}
std::string HunspellChecker::activeLanguage() const {
return activeLangauge_.get_value_or("");
}
std::vector<std::string> HunspellChecker::supportedLanguages() const {
std::vector<std::string> languages;
for (const auto& n : detectedDictionaries()) {
languages.push_back(n.first);
}
return languages;
}
std::unordered_map<std::string, HunspellChecker::Dictionary> HunspellChecker::detectedDictionaries() const {
std::unordered_map<std::string, HunspellChecker::Dictionary> dictionaries;
auto dictionaryFiles = recursiveFileSearch(hunspellDictionaryPaths(), boost::regex(".*\\.dic$"));
for (const auto& dictionary : dictionaryFiles) {
std::string correspondingAffixPath = dictionary;
boost::replace_last(correspondingAffixPath, ".dic", ".aff");
if (boost::filesystem::is_regular_file(correspondingAffixPath)) {
auto filenameWithoutExtension = boost::filesystem::basename(dictionary);
dictionaries[filenameWithoutExtension] = {dictionary, correspondingAffixPath};
}
}
return dictionaries;
}
bool HunspellChecker::isCorrect(const std::string& word) {
if (speller_) {
return speller_->spell(word.c_str());
}
else {
return true;
}
}
void HunspellChecker::getSuggestions(const std::string& word, std::vector<std::string>& list) {
if (speller_) {
char **suggestList = NULL;
int words_returned = 0;
if (!word.empty()) {
words_returned = speller_->suggest(&suggestList, word.c_str());
if (suggestList != NULL) {
for (int i = 0; i < words_returned; ++i) {
list.push_back(suggestList[i]);
free(suggestList[i]);
}
free(suggestList);
}
}
}
}
void HunspellChecker::checkFragment(const std::string& fragment, PositionPairList& misspelledPositions) {
if (speller_) {
if (!fragment.empty()) {
parser_.check(fragment, misspelledPositions);
for (PositionPairList::iterator it = misspelledPositions.begin(); it != misspelledPositions.end();) {
if (isCorrect(fragment.substr(boost::get<0>(*it), boost::get<1>(*it) - boost::get<0>(*it)))) {
it = misspelledPositions.erase(it);
}
else {
++it;
}
}
}
}
}
}
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Swift