tdesktop/Telegram/SourceFiles/codegen/style/parsed_file.cpp

301 lines
8.6 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) 2014-2016 John Preston, https://desktop.telegram.org
*/
#include "codegen/style/parsed_file.h"
#include <iostream>
#include <QtCore/QDir>
#include <QtCore/QRegularExpression>
#include "codegen/common/basic_tokenized_file.h"
#include "codegen/common/logging.h"
using Token = codegen::style::ParsedFile::Token;
using Type = Token::Type;
using BasicToken = codegen::common::BasicTokenizedFile::Token;
using BasicType = BasicToken::Type;
namespace codegen {
namespace style {
namespace {
QString plainValue(const BasicToken &token) {
return token.original.toStringUnchecked();
}
Token invalidToken() {
return { Type::Invalid, QString() };
}
} // namespace
ParsedFile::ParsedFile(const Options &options)
: file_(options.inputPath)
, options_(options) {
}
bool ParsedFile::read() {
if (!file_.read()) {
return false;
}
for (auto token = readInDefault(); token; token = readInDefault()) {
if (token.type == Type::Using) {
auto includedOptions = options_;
// includedOptions.inputPath = findIncludePath(token.value);
ParsedFile included(includedOptions);
if (!included.read()) {
return false;
}
result_.includes.push_back(included.data());
//} else if (token.type == Type::DefineStructStart) {
// if (!read)
}
}
return !failed();
}
Token ParsedFile::readToken() {
switch (state_) {
case State::Default: return readInDefault();
case State::StructStarted: return readInStructStarted();
case State::StructFieldName: return readInStructFieldName();
case State::Variable: return readInVariable();
case State::VariableParents: return readInVariableParents();
case State::VariableStarted: return readInVariableStarted();
case State::VariableChild: return readInVariableChild();
}
return invalidToken();
}
Token ParsedFile::readInDefault() {
if (auto startToken = file_.getToken(BasicType::Name)) {
if (plainValue(startToken) == "using") {
if (auto usingFile = file_.getToken(BasicType::String)) {
if (file_.getToken(BasicType::Semicolon)) {
return { Type::Using, usingFile.value };
}
logErrorUnexpectedToken("';'");
} else {
logErrorUnexpectedToken("file path");
}
return invalidToken();
} else if (auto braceOpen = file_.getToken(BasicType::LeftBrace)) {
state_ = State::StructStarted;
return { Type::DefineStructStart, plainValue(startToken) };
} else if (auto colonToken = file_.getToken(BasicType::Colon)) {
state_ = State::Variable;
return { Type::DefineVariable, plainValue(startToken) };
}
}
if (!file_.atEnd()) {
logErrorUnexpectedToken("using keyword, or struct definition, or variable definition");
}
return invalidToken();
}
Token ParsedFile::readInStructStarted() {
if (auto fieldName = file_.getToken(BasicType::Name)) {
state_ = State::StructFieldName;
return { Type::DefineStructField, plainValue(fieldName) };
} else if (auto braceClose = file_.getToken(BasicType::RightBrace)) {
state_ = State::Default;
return { Type::DefineStructEnd };
}
logErrorUnexpectedToken("struct field name or '}'");
return invalidToken();
}
Token ParsedFile::readInStructFieldName() {
if (auto colonToken = file_.getToken(BasicType::Colon)) {
if (auto fieldType = file_.getToken(BasicType::Name)) {
if (file_.getToken(BasicType::Semicolon)) {
state_ = State::StructStarted;
return { Type::StructFieldType, plainValue(fieldType) };
}
logErrorUnexpectedToken(";");
} else {
logErrorUnexpectedToken("struct field type name");
}
} else {
logErrorUnexpectedToken("':'");
}
return invalidToken();
}
Token ParsedFile::readInVariable() {
if (auto value = readValueToken()) {
if (file_.getToken(BasicType::Semicolon)) {
state_ = State::Default;
return value;
}
logErrorUnexpectedToken(";");
return invalidToken();
}
if (failed()) {
return invalidToken();
}
if (auto structName = file_.getToken(BasicType::Name)) {
if (file_.getToken(BasicType::LeftParenthesis)) {
state_ = State::VariableParents;
return { Type::StructStart, plainValue(structName) };
} else if (file_.getToken(BasicType::LeftBrace)) {
state_ = State::VariableStarted;
return { Type::StructStart, plainValue(structName) };
} else {
logErrorUnexpectedToken("'(' or '{'");
}
} else {
logErrorUnexpectedToken("variable value");
}
return invalidToken();
}
Token ParsedFile::readInVariableParents() {
if (auto parentName = file_.getToken(BasicType::Name)) {
if (file_.getToken(BasicType::Comma)) {
return { Type::StructParent, plainValue(parentName) };
} else if (file_.getToken(BasicType::RightParenthesis)) {
if (file_.getToken(BasicType::LeftBrace)) {
state_ = State::VariableStarted;
return { Type::StructParent, plainValue(parentName) };
}
logErrorUnexpectedToken("'{'");
} else {
logErrorUnexpectedToken("',' or ')'");
}
} else {
logErrorUnexpectedToken("struct variable parent");
}
return invalidToken();
}
Token ParsedFile::readInVariableStarted() {
if (auto fieldName = file_.getToken(BasicType::Name)) {
state_ = State::VariableChild;
return { Type::VariableField, plainValue(fieldName) };
} else if (auto braceClose = file_.getToken(BasicType::RightBrace)) {
state_ = State::Default;
return { Type::StructEnd };
}
logErrorUnexpectedToken("struct variable field name or '}'");
return invalidToken();
}
Token ParsedFile::readInVariableChild() {
if (auto value = readValueToken()) {
if (file_.getToken(BasicType::Semicolon)) {
state_ = State::Default;
return value;
}
logErrorUnexpectedToken(";");
} else {
logErrorUnexpectedToken("variable field value");
}
return invalidToken();
}
Token ParsedFile::readNumericToken() {
auto numericToken = file_.getAnyToken();
if (numericToken.type == BasicType::Int) {
return { Type::Int, plainValue(numericToken) };
} else if (numericToken.type == BasicType::Double) {
return { Type::Double, plainValue(numericToken) };
} else if (numericToken.type == BasicType::Name) {
auto value = plainValue(numericToken);
auto match = QRegularExpression("^\\d+px$").match(value);
if (match.hasMatch()) {
return { Type::Pixels, value.mid(0, value.size() - 2) };
}
}
file_.putBack();
return invalidToken();
}
Token ParsedFile::readValueToken() {
if (auto colorValue = readColorToken()) {
return colorValue;
} else if (auto pointValue = readPointToken()) {
return pointValue;
} else if (auto spriteValue = readSpriteToken()) {
return spriteValue;
} else if (auto sizeValue = readSizeToken()) {
return sizeValue;
} else if (auto transitionValue = readTransitionToken()) {
return transitionValue;
} else if (auto cursorValue = readCursorToken()) {
return cursorValue;
} else if (auto alignValue = readAlignToken()) {
return alignValue;
} else if (auto marginsValue = readMarginsToken()) {
return marginsValue;
} else if (auto fontValue = readFontToken()) {
return fontValue;
} else if (auto numericValue = readNumericToken()) {
return numericValue;
} else if (auto stringValue = file_.getToken(BasicType::String)) {
return { Type::String, stringValue.value };
} else if (auto minusToken = file_.getToken(BasicType::Minus)) {
if (auto positiveValue = readNumericToken()) {
return { positiveValue.type, '-' + positiveValue.value };
}
logErrorUnexpectedToken("numeric value");
}
return invalidToken();
}
Token ParsedFile::readColorToken() {
return invalidToken();
}
Token ParsedFile::readPointToken() {
return invalidToken();
}
Token ParsedFile::readSpriteToken() {
return invalidToken();
}
Token ParsedFile::readSizeToken() {
return invalidToken();
}
Token ParsedFile::readTransitionToken() {
return invalidToken();
}
Token ParsedFile::readCursorToken() {
return invalidToken();
}
Token ParsedFile::readAlignToken() {
return invalidToken();
}
Token ParsedFile::readMarginsToken() {
return invalidToken();
}
Token ParsedFile::readFontToken() {
return invalidToken();
}
} // namespace style
} // namespace codegen