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//
// Copyleft RIME Developers
// License: GPLv3
//
// 2012-01-19 GONG Chen <chen.sst@gmail.com>
//
#include <algorithm>
#include <fstream>
#include <boost/foreach.hpp>
#include <rime/algo/algebra.h>
#include <rime/algo/calculus.h>
namespace rime {
bool Script::AddSyllable(const std::string& syllable) {
if (find(syllable) != end())
return false;
Spelling spelling(syllable);
(*this)[syllable].push_back(spelling);
return true;
}
void Script::Merge(const std::string& s,
const SpellingProperties& sp,
const std::vector<Spelling>& v) {
std::vector<Spelling>& m((*this)[s]);
BOOST_FOREACH(const Spelling& x, v) {
Spelling y(x);
SpellingProperties& yy(y.properties);
{
if (sp.type > yy.type)
yy.type = sp.type;
yy.credibility *= sp.credibility;
if (!sp.tips.empty())
yy.tips = sp.tips;
}
std::vector<Spelling>::iterator e = std::find(m.begin(), m.end(), x);
if (e == m.end()) {
m.push_back(y);
}
else {
SpellingProperties& zz(e->properties);
if (yy.type < zz.type)
zz.type = yy.type;
if (yy.credibility > zz.credibility)
zz.credibility = yy.credibility;
zz.tips.clear();
}
}
}
void Script::Dump(const std::string& file_name) const {
std::ofstream out(file_name.c_str());
BOOST_FOREACH(const value_type& v, *this) {
bool first = true;
BOOST_FOREACH(const Spelling& s, v.second) {
out << (first ? v.first : "") << '\t'
<< s.str << '\t'
<< "-ac?!"[s.properties.type] << '\t'
<< s.properties.credibility << '\t'
<< s.properties.tips << std::endl;
first = false;
}
}
out.close();
}
bool Projection::Load(ConfigListPtr settings) {
if (!settings) return false;
calculation_.clear();
Calculus calc;
bool success = true;
for (size_t i = 0; i < settings->size(); ++i) {
ConfigValuePtr v(settings->GetValueAt(i));
if (!v) {
LOG(ERROR) << "Error loading formula #" << (i + 1) << ".";
success = false;
break;
}
const std::string &formula(v->str());
shared_ptr<Calculation> x;
try {
x.reset(calc.Parse(formula));
}
catch (boost::regex_error& e) {
LOG(ERROR) << "Error parsing formula '" << formula << "': " << e.what();
}
if (!x) {
LOG(ERROR) << "Error loading spelling algebra definition #" << (i + 1)
<< ": '" << formula << "'.";
success = false;
break;
}
calculation_.push_back(x);
}
if (!success) {
calculation_.clear();
}
return success;
}
bool Projection::Apply(std::string* value) {
if (!value || value->empty())
return false;
bool modified = false;
Spelling s(*value);
BOOST_FOREACH(shared_ptr<Calculation>& x, calculation_) {
try {
if (x->Apply(&s))
modified = true;
}
catch (std::runtime_error& e) {
LOG(ERROR) << "Error applying calculation: " << e.what();
return false;
}
}
if (modified)
value->assign(s.str);
return modified;
}
bool Projection::Apply(Script* value) {
if (!value || value->empty())
return false;
bool modified = false;
int round = 0;
BOOST_FOREACH(shared_ptr<Calculation>& x, calculation_) {
++round;
DLOG(INFO) << "round #" << round;
Script temp;
BOOST_FOREACH(const Script::value_type& v, *value) {
Spelling s(v.first);
bool applied = false;
try {
applied = x->Apply(&s);
}
catch (std::runtime_error& e) {
LOG(ERROR) << "Error applying calculation: " << e.what();
return false;
}
if (applied) {
modified = true;
if (!x->deletion()) {
temp.Merge(v.first, SpellingProperties(), v.second);
}
if (x->addition() && !s.str.empty()) {
temp.Merge(s.str, s.properties, v.second);
}
}
else {
temp.Merge(v.first, SpellingProperties(), v.second);
}
}
value->swap(temp);
}
return modified;
}
} // namespace rime
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