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//
// Copyleft RIME Developers
// License: GPLv3
//
// 2012-04-22 GONG Chen <chen.sst@gmail.com>
//
#include <boost/foreach.hpp>
#include <utf8.h>
#include <rime/config.h>
#include <rime/schema.h>
#include <rime/ticket.h>
#include <rime/gear/translator_commons.h>
namespace rime {
bool contains_extended_cjk(const std::string &text);
// Patterns
bool Patterns::Load(ConfigListPtr patterns) {
clear();
if (!patterns) return false;
for (ConfigList::Iterator it = patterns->begin(); it != patterns->end(); ++it) {
ConfigValuePtr value = As<ConfigValue>(*it);
if (!value) continue;
push_back(boost::regex(value->str()));
}
return true;
}
// Sentence
void Sentence::Extend(const DictEntry& entry, size_t end_pos) {
const double kEpsilon = 1e-200;
const double kPenalty = 1e-8;
entry_->code.insert(entry_->code.end(),
entry.code.begin(), entry.code.end());
entry_->text.append(entry.text);
entry_->weight *= (std::max)(entry.weight, kEpsilon) * kPenalty;
components_.push_back(entry);
syllable_lengths_.push_back(end_pos - end());
set_end(end_pos);
DLOG(INFO) << "extend sentence " << end_pos << ") "
<< entry_->text << " : " << entry_->weight;
}
void Sentence::Offset(size_t offset) {
set_start(start() + offset);
set_end(end() + offset);
}
// CacheTranslation
CacheTranslation::CacheTranslation(shared_ptr<Translation> translation)
: translation_(translation) {
set_exhausted(!translation_ || translation_->exhausted());
}
bool CacheTranslation::Next() {
if (exhausted())
return false;
cache_.reset();
translation_->Next();
if (translation_->exhausted()) {
set_exhausted(true);
return false;
}
return true;
}
shared_ptr<Candidate> CacheTranslation::Peek() {
if (exhausted())
return shared_ptr<Candidate>();
if (!cache_) {
cache_ = translation_->Peek();
}
return cache_;
}
// CharsetFilter
CharsetFilter::CharsetFilter(shared_ptr<Translation> translation)
: translation_(translation) {
LocateNextCandidate();
}
bool CharsetFilter::Next() {
if (exhausted())
return false;
if (!translation_->Next()) {
set_exhausted(true);
return false;
}
return LocateNextCandidate();
}
shared_ptr<Candidate> CharsetFilter::Peek() {
return translation_->Peek();
}
bool CharsetFilter::LocateNextCandidate() {
while (!translation_->exhausted()) {
shared_ptr<Candidate> cand = translation_->Peek();
if (cand && FilterText(cand->text()))
return true;
translation_->Next();
}
set_exhausted(true);
return false;
}
bool CharsetFilter::FilterText(const std::string& text) {
return !contains_extended_cjk(text);
}
bool CharsetFilter::FilterDictEntry(shared_ptr<DictEntry> entry) {
return entry && FilterText(entry->text);
}
// UniqueFilter
UniqueFilter::UniqueFilter(shared_ptr<Translation> translation)
: CacheTranslation(translation) {
}
bool UniqueFilter::Next() {
if (exhausted())
return false;
// skip duplicate candidates
do {
candidate_set_.insert(Peek()->text());
CacheTranslation::Next();
}
while (!exhausted() &&
AlreadyHas(Peek()->text()));
return !exhausted();
}
bool UniqueFilter::AlreadyHas(const std::string& text) const {
return candidate_set_.find(text) != candidate_set_.end();
}
// TranslatorOptions
TranslatorOptions::TranslatorOptions(const Ticket& ticket)
: tag_("abc"),
enable_completion_(true),
strict_spelling_(false),
initial_quality_(0.0) {
if (!ticket.schema) return;
Config *config = ticket.schema->config();
if (config) {
config->GetString(ticket.name_space + "/delimiter", &delimiters_) ||
config->GetString("speller/delimiter", &delimiters_);
config->GetString(ticket.name_space + "/tag", &tag_);
config->GetBool(ticket.name_space + "/enable_completion",
&enable_completion_);
config->GetBool(ticket.name_space + "/strict_spelling",
&strict_spelling_);
config->GetDouble(ticket.name_space + "/initial_quality",
&initial_quality_);
preedit_formatter_.Load(
config->GetList(ticket.name_space + "/preedit_format"));
comment_formatter_.Load(
config->GetList(ticket.name_space + "/comment_format"));
user_dict_disabling_patterns_.Load(
config->GetList(ticket.name_space + "/disable_user_dict_for_patterns"));
}
if (delimiters_.empty()) {
delimiters_ = " ";
}
}
bool TranslatorOptions::IsUserDictDisabledFor(const std::string& input) const {
if (user_dict_disabling_patterns_.empty())
return false;
BOOST_FOREACH(const boost::regex& pattern, user_dict_disabling_patterns_) {
if (boost::regex_match(input, pattern))
return true;
}
return false;
}
} // namespace rime
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