tdesktop/Telegram/SourceFiles/codegen/numbers/generator.cpp

111 lines
3.8 KiB
C++

/*
This file is part of Telegram Desktop,
the official desktop version of Telegram messaging app, see https://telegram.org
Telegram Desktop is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
It is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
In addition, as a special exception, the copyright holders give permission
to link the code of portions of this program with the OpenSSL library.
Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
*/
#include "codegen/numbers/generator.h"
#include <QtCore/QDir>
#include <QtCore/QSet>
#include <functional>
namespace codegen {
namespace numbers {
namespace {
} // namespace
Generator::Generator(const Rules &rules, const QString &destBasePath, const common::ProjectInfo &project)
: rules_(rules)
, basePath_(destBasePath)
, project_(project) {
}
bool Generator::writeHeader() {
header_ = std::make_unique<common::CppFile>(basePath_ + ".h", project_);
header_->stream() << "QVector<int> phoneNumberParse(const QString &number);\n";
return header_->finalize();
}
bool Generator::writeSource() {
source_ = std::make_unique<common::CppFile>(basePath_ + ".cpp", project_);
source_->stream() << "\
QVector<int> phoneNumberParse(const QString &number) {\n\
QVector<int> result;\n\
\n\
int32 len = number.size();\n\
if (len > 0) switch (number.at(0).unicode()) {\n";
QString already;
for (auto i = rules_.data.cend(), e = rules_.data.cbegin(); i != e;) {
--i;
QString k = i.key();
bool onlyLastChanged = true;
while (!already.isEmpty() && (already.size() > k.size() || !already.endsWith(k.at(already.size() - 1)))) {
if (!onlyLastChanged) {
source_->stream() << QString("\t").repeated(1 + already.size()) << "}\n";
source_->stream() << QString("\t").repeated(already.size()) << "break;\n";
}
already = already.mid(0, already.size() - 1);
onlyLastChanged = false;
}
if (already == k) {
source_->stream() << QString("\t").repeated(1 + already.size()) << "}\n";
} else {
bool onlyFirstCheck = true;
while (already.size() < k.size()) {
if (!onlyFirstCheck) source_->stream() << QString("\t").repeated(1 + already.size()) << "if (len > " << already.size() << ") switch (number.at(" << already.size() << ").unicode()) {\n";
source_->stream() << QString("\t").repeated(1 + already.size()) << "case '" << k.at(already.size()).toLatin1() << "':\n";
already.push_back(k.at(already.size()));
onlyFirstCheck = false;
}
}
if (i.value().isEmpty()) {
source_->stream() << QString("\t").repeated(1 + already.size()) << "return QVector<int>(1, " << k.size() << ");\n";
} else {
source_->stream() << QString("\t").repeated(1 + already.size()) << "result.reserve(" << (i.value().size() + 1) << ");\n";
source_->stream() << QString("\t").repeated(1 + already.size()) << "result.push_back(" << k.size() << ");\n";
for (int j = 0, l = i.value().size(); j < l; ++j) {
source_->stream() << QString("\t").repeated(1 + already.size()) << "result.push_back(" << i.value().at(j) << ");\n";
}
source_->stream() << QString("\t").repeated(1 + already.size()) << "return result;\n";
}
}
bool onlyLastChanged = true;
while (!already.isEmpty()) {
if (!onlyLastChanged) {
source_->stream() << QString("\t").repeated(1 + already.size()) << "}\n";
}
already = already.mid(0, already.size() - 1);
onlyLastChanged = false;
}
source_->stream() << "\
}\n\
\n\
return result;\n\
}\n";
return source_->finalize();
}
} // namespace numbers
} // namespace codegen