478 lines
14 KiB
C++
478 lines
14 KiB
C++
/*
|
|
This file is part of Telegram Desktop,
|
|
the official desktop application for the Telegram messaging service.
|
|
|
|
For license and copyright information please follow this link:
|
|
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
|
|
*/
|
|
#include "codegen/lang/generator.h"
|
|
|
|
#include <memory>
|
|
#include <functional>
|
|
#include <QtCore/QDir>
|
|
#include <QtCore/QSet>
|
|
#include <QtGui/QImage>
|
|
#include <QtGui/QPainter>
|
|
|
|
namespace codegen {
|
|
namespace lang {
|
|
namespace {
|
|
|
|
char hexChar(uchar ch) {
|
|
if (ch < 10) {
|
|
return '0' + ch;
|
|
} else if (ch < 16) {
|
|
return 'a' + (ch - 10);
|
|
}
|
|
return '0';
|
|
}
|
|
|
|
char hexSecondChar(char ch) {
|
|
return hexChar((*reinterpret_cast<uchar*>(&ch)) & 0x0F);
|
|
}
|
|
|
|
char hexFirstChar(char ch) {
|
|
return hexChar((*reinterpret_cast<uchar*>(&ch)) >> 4);
|
|
}
|
|
|
|
QString stringToEncodedString(const QString &str) {
|
|
QString result, lineBreak = "\\\n";
|
|
result.reserve(str.size() * 8);
|
|
bool writingHexEscapedCharacters = false, startOnNewLine = false;
|
|
int lastCutSize = 0;
|
|
auto utf = str.toUtf8();
|
|
for (auto ch : utf) {
|
|
if (result.size() - lastCutSize > 80) {
|
|
startOnNewLine = true;
|
|
result.append(lineBreak);
|
|
lastCutSize = result.size();
|
|
}
|
|
if (ch == '\n') {
|
|
writingHexEscapedCharacters = false;
|
|
result.append("\\n");
|
|
} else if (ch == '\t') {
|
|
writingHexEscapedCharacters = false;
|
|
result.append("\\t");
|
|
} else if (ch == '"' || ch == '\\') {
|
|
writingHexEscapedCharacters = false;
|
|
result.append('\\').append(ch);
|
|
} else if (ch < 32 || static_cast<uchar>(ch) > 127) {
|
|
writingHexEscapedCharacters = true;
|
|
result.append("\\x").append(hexFirstChar(ch)).append(hexSecondChar(ch));
|
|
} else {
|
|
if (writingHexEscapedCharacters) {
|
|
writingHexEscapedCharacters = false;
|
|
result.append("\"\"");
|
|
}
|
|
result.append(ch);
|
|
}
|
|
}
|
|
return '"' + (startOnNewLine ? lineBreak : QString()) + result + '"';
|
|
}
|
|
|
|
QString stringToEncodedString(const std::string &str) {
|
|
return stringToEncodedString(QString::fromStdString(str));
|
|
}
|
|
|
|
QString stringToBinaryArray(const std::string &str) {
|
|
QStringList rows, chars;
|
|
chars.reserve(13);
|
|
rows.reserve(1 + (str.size() / 13));
|
|
for (uchar ch : str) {
|
|
if (chars.size() > 12) {
|
|
rows.push_back(chars.join(", "));
|
|
chars.clear();
|
|
}
|
|
chars.push_back(QString("0x") + hexFirstChar(ch) + hexSecondChar(ch));
|
|
}
|
|
if (!chars.isEmpty()) {
|
|
rows.push_back(chars.join(", "));
|
|
}
|
|
return QString("{") + ((rows.size() > 1) ? '\n' : ' ') + rows.join(",\n") + " }";
|
|
}
|
|
|
|
} // namespace
|
|
|
|
Generator::Generator(const LangPack &langpack, const QString &destBasePath, const common::ProjectInfo &project)
|
|
: langpack_(langpack)
|
|
, basePath_(destBasePath)
|
|
, baseName_(QFileInfo(basePath_).baseName())
|
|
, project_(project) {
|
|
}
|
|
|
|
bool Generator::writeHeader() {
|
|
header_ = std::make_unique<common::CppFile>(basePath_ + ".h", project_);
|
|
header_->include("lang/lang_tag.h").newline().pushNamespace("Lang").stream() << "\
|
|
\n\
|
|
constexpr auto kTagsCount = " << langpack_.tags.size() << ";\n\
|
|
\n";
|
|
|
|
header_->popNamespace().newline();
|
|
auto index = 0;
|
|
for (auto &tag : langpack_.tags) {
|
|
header_->stream() << "enum lngtag_" << tag.tag << " { lt_" << tag.tag << " = " << index++ << " };\n";
|
|
}
|
|
header_->stream() << "\
|
|
\n\
|
|
enum LangKey : int {\n";
|
|
for (auto &entry : langpack_.entries) {
|
|
header_->stream() << "\t" << getFullKey(entry) << ",\n";
|
|
}
|
|
header_->stream() << "\
|
|
\n\
|
|
kLangKeysCount,\n\
|
|
};\n\
|
|
\n\
|
|
QString lang(LangKey key);\n\
|
|
\n";
|
|
|
|
for (auto &entry : langpack_.entries) {
|
|
auto isPlural = !entry.keyBase.isEmpty();
|
|
auto &key = entry.key;
|
|
auto genericParams = QStringList();
|
|
auto params = QStringList();
|
|
auto applyTags = QStringList();
|
|
auto plural = QString();
|
|
auto nonPluralTagFound = false;
|
|
for (auto &tagData : entry.tags) {
|
|
auto &tag = tagData.tag;
|
|
auto isPluralTag = isPlural && (tag == kPluralTag);
|
|
genericParams.push_back("lngtag_" + tag + ", " + (isPluralTag ? "float64 " : "const ResultString &") + tag + "__val");
|
|
params.push_back("lngtag_" + tag + ", " + (isPluralTag ? "float64 " : "const QString &") + tag + "__val");
|
|
if (isPluralTag) {
|
|
plural = "\tauto plural = Lang::Plural(" + key + ", " + kPluralTag + "__val);\n";
|
|
applyTags.push_back("\tresult = Lang::ReplaceTag<ResultString>::Call(std::move(result), lt_" + tag + ", Lang::StartReplacements<ResultString>::Call(std::move(plural.replacement)));\n");
|
|
} else {
|
|
nonPluralTagFound = true;
|
|
applyTags.push_back("\tresult = Lang::ReplaceTag<ResultString>::Call(std::move(result), lt_" + tag + ", " + tag + "__val);\n");
|
|
}
|
|
}
|
|
if (!entry.tags.empty() && (!isPlural || key == ComputePluralKey(entry.keyBase, 0))) {
|
|
auto initialString = isPlural ? ("std::move(plural.string)") : ("lang(" + getFullKey(entry) + ")");
|
|
header_->stream() << "\
|
|
template <typename ResultString>\n\
|
|
inline ResultString " << (isPlural ? entry.keyBase : key) << "__generic(" << genericParams.join(QString(", ")) << ") {\n\
|
|
" << plural << "\
|
|
auto result = Lang::StartReplacements<ResultString>::Call(" << initialString << ");\n\
|
|
" << applyTags.join(QString()) << "\
|
|
return result;\n\
|
|
}\n\
|
|
constexpr auto " << (isPlural ? entry.keyBase : key) << " = &" << (isPlural ? entry.keyBase : key) << "__generic<QString>;\n\
|
|
\n";
|
|
}
|
|
}
|
|
|
|
header_->pushNamespace("Lang").stream() << "\
|
|
\n\
|
|
const char *GetKeyName(LangKey key);\n\
|
|
ushort GetTagIndex(QLatin1String tag);\n\
|
|
LangKey GetKeyIndex(QLatin1String key);\n\
|
|
bool IsTagReplaced(LangKey key, ushort tag);\n\
|
|
QString GetOriginalValue(LangKey key);\n\
|
|
\n";
|
|
|
|
return header_->finalize();
|
|
}
|
|
|
|
bool Generator::writeSource() {
|
|
source_ = std::make_unique<common::CppFile>(basePath_ + ".cpp", project_);
|
|
|
|
source_->include("lang/lang_keys.h").pushNamespace("Lang").pushNamespace().stream() << "\
|
|
const char *KeyNames[kLangKeysCount] = {\n\
|
|
\n";
|
|
for (auto &entry : langpack_.entries) {
|
|
source_->stream() << "\"" << entry.key << "\",\n";
|
|
}
|
|
source_->stream() << "\
|
|
\n\
|
|
};\n\
|
|
\n\
|
|
QChar DefaultData[] = {";
|
|
auto count = 0;
|
|
auto fulllength = 0;
|
|
for (auto &entry : langpack_.entries) {
|
|
for (auto ch : entry.value) {
|
|
if (fulllength > 0) source_->stream() << ",";
|
|
if (!count++) {
|
|
source_->stream() << "\n";
|
|
} else {
|
|
if (count == 12) {
|
|
count = 0;
|
|
}
|
|
source_->stream() << " ";
|
|
}
|
|
source_->stream() << "0x" << QString::number(ch.unicode(), 16);
|
|
++fulllength;
|
|
}
|
|
}
|
|
source_->stream() << " };\n\
|
|
\n\
|
|
int Offsets[] = {";
|
|
count = 0;
|
|
auto offset = 0;
|
|
auto writeOffset = [this, &count, &offset] {
|
|
if (offset > 0) source_->stream() << ",";
|
|
if (!count++) {
|
|
source_->stream() << "\n";
|
|
} else {
|
|
if (count == 12) {
|
|
count = 0;
|
|
}
|
|
source_->stream() << " ";
|
|
}
|
|
source_->stream() << offset;
|
|
};
|
|
for (auto &entry : langpack_.entries) {
|
|
writeOffset();
|
|
offset += entry.value.size();
|
|
}
|
|
writeOffset();
|
|
source_->stream() << " };\n";
|
|
source_->popNamespace().stream() << "\
|
|
\n\
|
|
const char *GetKeyName(LangKey key) {\n\
|
|
return (key < 0 || key >= kLangKeysCount) ? \"\" : KeyNames[key];\n\
|
|
}\n\
|
|
\n\
|
|
ushort GetTagIndex(QLatin1String tag) {\n\
|
|
auto size = tag.size();\n\
|
|
auto data = tag.data();\n";
|
|
|
|
auto tagsSet = std::set<QString, std::greater<QString>>();
|
|
for (auto &tag : langpack_.tags) {
|
|
tagsSet.insert(tag.tag);
|
|
}
|
|
|
|
writeSetSearch(tagsSet, [](const QString &tag) {
|
|
return "lt_" + tag;
|
|
}, "kTagsCount");
|
|
|
|
source_->stream() << "\
|
|
}\n\
|
|
\n\
|
|
LangKey GetKeyIndex(QLatin1String key) {\n\
|
|
auto size = key.size();\n\
|
|
auto data = key.data();\n";
|
|
|
|
auto taggedKeys = std::map<QString, QString>();
|
|
auto keysSet = std::set<QString, std::greater<QString>>();
|
|
for (auto &entry : langpack_.entries) {
|
|
if (!entry.keyBase.isEmpty()) {
|
|
for (auto i = 0; i != kPluralPartCount; ++i) {
|
|
auto keyName = entry.keyBase + '#' + kPluralParts[i];
|
|
taggedKeys.emplace(keyName, ComputePluralKey(entry.keyBase, i));
|
|
keysSet.insert(keyName);
|
|
}
|
|
} else {
|
|
auto full = getFullKey(entry);
|
|
if (full != entry.key) {
|
|
taggedKeys.emplace(entry.key, full);
|
|
}
|
|
keysSet.insert(entry.key);
|
|
}
|
|
}
|
|
|
|
writeSetSearch(keysSet, [&taggedKeys](const QString &key) {
|
|
auto it = taggedKeys.find(key);
|
|
return (it != taggedKeys.end()) ? it->second : key;
|
|
}, "kLangKeysCount");
|
|
|
|
source_->stream() << "\
|
|
}\n\
|
|
\n\
|
|
bool IsTagReplaced(LangKey key, ushort tag) {\n\
|
|
switch (key) {\n";
|
|
|
|
auto lastWrittenPluralEntry = QString();
|
|
for (auto &entry : langpack_.entries) {
|
|
if (entry.tags.empty()) {
|
|
continue;
|
|
}
|
|
if (!entry.keyBase.isEmpty()) {
|
|
if (entry.keyBase == lastWrittenPluralEntry) {
|
|
continue;
|
|
}
|
|
lastWrittenPluralEntry = entry.keyBase;
|
|
for (auto i = 0; i != kPluralPartCount; ++i) {
|
|
source_->stream() << "\
|
|
case " << ComputePluralKey(entry.keyBase, i) << ":" << ((i + 1 == kPluralPartCount) ? " {" : "") << "\n";
|
|
}
|
|
} else {
|
|
source_->stream() << "\
|
|
case " << getFullKey(entry) << ": {\n";
|
|
}
|
|
source_->stream() << "\
|
|
switch (tag) {\n";
|
|
for (auto &tag : entry.tags) {
|
|
source_->stream() << "\
|
|
case lt_" << tag.tag << ":\n";
|
|
}
|
|
source_->stream() << "\
|
|
return true;\n\
|
|
}\n\
|
|
} break;\n";
|
|
}
|
|
|
|
source_->stream() << "\
|
|
}\
|
|
\n\
|
|
return false;\n\
|
|
}\n\
|
|
\n\
|
|
QString GetOriginalValue(LangKey key) {\n\
|
|
Expects(key >= 0 && key < kLangKeysCount);\n\
|
|
auto offset = Offsets[key];\n\
|
|
return QString::fromRawData(DefaultData + offset, Offsets[key + 1] - offset);\n\
|
|
}\n\
|
|
\n";
|
|
|
|
return source_->finalize();
|
|
}
|
|
|
|
template <typename ComputeResult>
|
|
void Generator::writeSetSearch(const std::set<QString, std::greater<QString>> &set, ComputeResult computeResult, const QString &invalidResult) {
|
|
auto tabs = [](int size) {
|
|
return QString(size, '\t');
|
|
};
|
|
|
|
enum class UsedCheckType {
|
|
Switch,
|
|
If,
|
|
UpcomingIf,
|
|
};
|
|
auto checkTypes = QVector<UsedCheckType>();
|
|
auto checkLengthHistory = QVector<int>(1, 0);
|
|
auto chars = QString();
|
|
auto tabsUsed = 1;
|
|
|
|
// Returns true if at least one check was finished.
|
|
auto finishChecksTillKey = [this, &chars, &checkTypes, &checkLengthHistory, &tabsUsed, tabs](const QString &key) {
|
|
auto result = false;
|
|
while (!chars.isEmpty() && key.midRef(0, chars.size()) != chars) {
|
|
result = true;
|
|
|
|
auto wasType = checkTypes.back();
|
|
chars.resize(chars.size() - 1);
|
|
checkTypes.pop_back();
|
|
checkLengthHistory.pop_back();
|
|
if (wasType == UsedCheckType::Switch || wasType == UsedCheckType::If) {
|
|
--tabsUsed;
|
|
if (wasType == UsedCheckType::Switch) {
|
|
source_->stream() << tabs(tabsUsed) << "break;\n";
|
|
}
|
|
if ((!chars.isEmpty() && key.midRef(0, chars.size()) != chars) || key == chars) {
|
|
source_->stream() << tabs(tabsUsed) << "}\n";
|
|
}
|
|
}
|
|
}
|
|
return result;
|
|
};
|
|
|
|
// Check if we can use "if" for a check on "charIndex" in "it" (otherwise only "switch")
|
|
auto canUseIfForCheck = [](auto it, auto end, int charIndex) {
|
|
auto key = *it;
|
|
auto i = it;
|
|
auto keyStart = key.mid(0, charIndex);
|
|
for (++i; i != end; ++i) {
|
|
auto nextKey = *i;
|
|
if (nextKey.mid(0, charIndex) != keyStart) {
|
|
return true;
|
|
} else if (nextKey.size() > charIndex && nextKey[charIndex] != key[charIndex]) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
};
|
|
|
|
auto countMinimalLength = [](auto it, auto end, int charIndex) {
|
|
auto key = *it;
|
|
auto i = it;
|
|
auto keyStart = key.mid(0, charIndex);
|
|
auto result = key.size();
|
|
for (++i; i != end; ++i) {
|
|
auto nextKey = *i;
|
|
if (nextKey.mid(0, charIndex) != keyStart) {
|
|
break;
|
|
} else if (nextKey.size() > charIndex && result > nextKey.size()) {
|
|
result = nextKey.size();
|
|
}
|
|
}
|
|
return result;
|
|
};
|
|
|
|
for (auto i = set.begin(), e = set.end(); i != e; ++i) {
|
|
// If we use just "auto" here and "name" becomes mutable,
|
|
// the operator[] will return QCharRef instead of QChar,
|
|
// and "auto ch = name[index]" will behave like "auto &ch =",
|
|
// if you assign something to "ch" after that you'll change "name" (!)
|
|
const auto name = *i;
|
|
|
|
auto weContinueOldSwitch = finishChecksTillKey(name);
|
|
while (chars.size() != name.size()) {
|
|
auto checking = chars.size();
|
|
auto partialKey = name.mid(0, checking);
|
|
|
|
auto keyChar = name[checking];
|
|
auto usedIfForCheckCount = 0;
|
|
auto minimalLengthCheck = countMinimalLength(i, e, checking);
|
|
for (; checking + usedIfForCheckCount != name.size(); ++usedIfForCheckCount) {
|
|
if (!canUseIfForCheck(i, e, checking + usedIfForCheckCount)
|
|
|| countMinimalLength(i, e, checking + usedIfForCheckCount) != minimalLengthCheck) {
|
|
break;
|
|
}
|
|
}
|
|
auto usedIfForCheck = !weContinueOldSwitch && (usedIfForCheckCount > 0);
|
|
auto checkLengthCondition = QString();
|
|
if (weContinueOldSwitch) {
|
|
weContinueOldSwitch = false;
|
|
} else {
|
|
checkLengthCondition = (minimalLengthCheck > checkLengthHistory.back()) ? ("size >= " + QString::number(minimalLengthCheck)) : QString();
|
|
if (!usedIfForCheck) {
|
|
source_->stream() << tabs(tabsUsed) << (checkLengthCondition.isEmpty() ? QString() : ("if (" + checkLengthCondition + ") ")) << "switch (data[" << checking << "]) {\n";
|
|
}
|
|
}
|
|
if (usedIfForCheck) {
|
|
auto conditions = QStringList();
|
|
if (usedIfForCheckCount > 1) {
|
|
conditions.push_back("!memcmp(data + " + QString::number(checking) + ", \"" + name.mid(checking, usedIfForCheckCount) + "\", " + QString::number(usedIfForCheckCount) + ")");
|
|
} else {
|
|
conditions.push_back("data[" + QString::number(checking) + "] == '" + keyChar + "'");
|
|
}
|
|
if (!checkLengthCondition.isEmpty()) {
|
|
conditions.push_front(checkLengthCondition);
|
|
}
|
|
source_->stream() << tabs(tabsUsed) << "if (" << conditions.join(" && ") << ") {\n";
|
|
checkTypes.push_back(UsedCheckType::If);
|
|
for (auto i = 1; i != usedIfForCheckCount; ++i) {
|
|
checkTypes.push_back(UsedCheckType::UpcomingIf);
|
|
chars.push_back(keyChar);
|
|
checkLengthHistory.push_back(qMax(minimalLengthCheck, checkLengthHistory.back()));
|
|
keyChar = name[checking + i];
|
|
}
|
|
} else {
|
|
source_->stream() << tabs(tabsUsed) << "case '" << keyChar << "':\n";
|
|
checkTypes.push_back(UsedCheckType::Switch);
|
|
}
|
|
++tabsUsed;
|
|
chars.push_back(keyChar);
|
|
checkLengthHistory.push_back(qMax(minimalLengthCheck, checkLengthHistory.back()));
|
|
}
|
|
source_->stream() << tabs(tabsUsed) << "return (size == " << chars.size() << ") ? " << computeResult(name) << " : " << invalidResult << ";\n";
|
|
}
|
|
finishChecksTillKey(QString());
|
|
|
|
source_->stream() << "\
|
|
\n\
|
|
return " << invalidResult << ";\n";
|
|
}
|
|
|
|
QString Generator::getFullKey(const LangPack::Entry &entry) {
|
|
if (!entry.keyBase.isEmpty() || entry.tags.empty()) {
|
|
return entry.key;
|
|
}
|
|
return entry.key + "__tagged";
|
|
}
|
|
|
|
} // namespace lang
|
|
} // namespace codegen
|