221 lines
8.9 KiB
C++
221 lines
8.9 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.
|
|
|
|
Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
|
|
Copyright (c) 2014 John Preston, https://desktop.telegram.org
|
|
*/
|
|
#include "stdafx.h"
|
|
#include "langloaderplain.h"
|
|
|
|
namespace {
|
|
|
|
bool skipWhitespaces(const char *&from, const char *end) {
|
|
while (from < end && (*from == ' ' || *from == '\n' || *from == '\t' || *from == '\r')) {
|
|
++from;
|
|
}
|
|
return (from < end);
|
|
}
|
|
|
|
bool skipComment(const char *&from, const char *end) {
|
|
if (from >= end) return false;
|
|
if (*from == '/') {
|
|
if (from + 1 >= end) return true;
|
|
if (*(from + 1) == '*') {
|
|
from += 2;
|
|
while (from + 1 < end && (*from != '*' || *(from + 1) != '/')) {
|
|
++from;
|
|
}
|
|
from += 2;
|
|
return (from < end);
|
|
} else if (*(from + 1) == '/') {
|
|
from += 2;
|
|
while (from < end && *from != '\n' && *from != '\r') {
|
|
++from;
|
|
}
|
|
++from;
|
|
return (from < end);
|
|
} else {
|
|
return true;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool skipJunk(const char *&from, const char *end) {
|
|
const char *start;
|
|
do {
|
|
start = from;
|
|
if (!skipWhitespaces(from, end)) return false;
|
|
if (!skipComment(from, end)) throw Exception("Unexpected end of comment!");
|
|
} while (start != from);
|
|
return true;
|
|
}
|
|
}
|
|
|
|
bool LangLoaderPlain::readKeyValue(const char *&from, const char *end) {
|
|
if (!skipJunk(from, end)) return false;
|
|
|
|
if (*from != '"') throw Exception(QString("Expected quote after key name!"));
|
|
++from;
|
|
const char *nameStart = from;
|
|
while (from < end && ((*from >= 'a' && *from <= 'z') || (*from >= 'A' && *from <= 'Z') || *from == '_' || (*from >= '0' && *from <= '9'))) {
|
|
++from;
|
|
}
|
|
|
|
QByteArray varName = QByteArray(nameStart, from - nameStart);
|
|
|
|
if (*from != '"') throw Exception(QString("Expected quote after key name '%1'!").arg(QLatin1String(varName)));
|
|
++from;
|
|
|
|
if (!skipJunk(from, end)) throw Exception(QString("Unexpected end of file in key '%1'!").arg(QLatin1String(varName)));
|
|
if (*from != '=') throw Exception(QString("'=' expected in key '%1'!").arg(QLatin1String(varName)));
|
|
|
|
if (!skipJunk(++from, end)) throw Exception(QString("Unexpected end of file in key '%1'!").arg(QLatin1String(varName)));
|
|
if (*from != '"') throw Exception(QString("Expected string after '=' in key '%1'!").arg(QLatin1String(varName)));
|
|
|
|
LangKey varKey = keyIndex(varName);
|
|
if (varKey == lngkeys_cnt) throw Exception(QString("Unknown key '%1'!").arg(QLatin1String(varName)));
|
|
|
|
QByteArray varValue;
|
|
QMap<ushort, bool> tagsUsed;
|
|
const char *start = ++from;
|
|
while (from < end && *from != '"') {
|
|
if (*from == '\n') {
|
|
throw Exception(QString("Unexpected end of string in key '%1'!").arg(QLatin1String(varName)));
|
|
}
|
|
if (*from == '\\') {
|
|
if (from + 1 >= end) throw Exception(QString("Unexpected end of file in key '%1'!").arg(QLatin1String(varName)));
|
|
if (*(from + 1) == '"' || *(from + 1) == '\\' || *(from + 1) == '{') {
|
|
if (from > start) varValue.append(start, from - start);
|
|
start = ++from;
|
|
} else if (*(from + 1) == 'n') {
|
|
if (from > start) varValue.append(start, int(from - start));
|
|
varValue.append('\n');
|
|
start = (++from) + 1;
|
|
}
|
|
} else if (*from == '{') {
|
|
if (from > start) varValue.append(start, int(from - start));
|
|
|
|
const char *tagStart = ++from;
|
|
while (from < end && ((*from >= 'a' && *from <= 'z') || (*from >= 'A' && *from <= 'Z') || *from == '_' || (*from >= '0' && *from <= '9'))) {
|
|
++from;
|
|
}
|
|
if (from == tagStart) throw Exception(QString("Expected tag name in key '%1'!").arg(QLatin1String(varName)));
|
|
QByteArray tagName = QByteArray(tagStart, int(from - tagStart));
|
|
|
|
if (from == end || (*from != '}' && *from != ':')) throw Exception(QString("Expected '}' or ':' after tag name in key '%1'!").arg(QLatin1String(varName)));
|
|
|
|
ushort index = tagIndex(tagName);
|
|
if (index == lngtags_cnt) throw Exception(QString("Tag '%1' not found in key '%2'!").arg(QLatin1String(tagName)).arg(QLatin1String(varName)));
|
|
|
|
if (!tagReplaced(varKey, index)) throw Exception(QString("Unexpected tag '%1' in key '%2'!").arg(QLatin1String(tagName)).arg(QLatin1String(varName)));
|
|
if (tagsUsed.contains(index)) throw Exception(QString("Tag '%1' double used in key '%2'!").arg(QLatin1String(tagName)).arg(QLatin1String(varName)));
|
|
tagsUsed.insert(index, true);
|
|
|
|
QString tagReplacer(4, TextCommand);
|
|
tagReplacer[1] = TextCommandLangTag;
|
|
tagReplacer[2] = QChar(0x0020 + index);
|
|
varValue.append(tagReplacer.toUtf8());
|
|
|
|
if (*from == ':') {
|
|
start = ++from;
|
|
|
|
QByteArray subvarValue;
|
|
bool foundtag = false;
|
|
int countedIndex = 0;
|
|
while (from < end && *from != '"' && *from != '}') {
|
|
if (*from == '|') {
|
|
if (from > start) subvarValue.append(start, int(from - start));
|
|
if (countedIndex >= lngtags_max_counted_values) throw Exception(QString("Too many values inside counted tag '%1' in '%2' key!").arg(QLatin1String(tagName)).arg(QLatin1String(varName)));
|
|
if (!feedKeyValue(subkeyIndex(varKey, index, countedIndex++), QString::fromUtf8(subvarValue))) throw Exception(QString("Tag '%1' is not counted in key '%2'!").arg(QLatin1String(tagName)).arg(QLatin1String(varName)));
|
|
subvarValue = QByteArray();
|
|
foundtag = false;
|
|
start = from + 1;
|
|
}
|
|
if (*from == '\n') {
|
|
throw Exception(QString("Unexpected end of string inside counted tag '%1' in '%2' key!").arg(QLatin1String(tagName)).arg(QLatin1String(varName)));
|
|
}
|
|
if (*from == '\\') {
|
|
if (from + 1 >= end) throw Exception(QString("Unexpected end of file inside counted tag '%1' in '%2' key!").arg(QLatin1String(tagName)).arg(QLatin1String(varName)));
|
|
if (*(from + 1) == '"' || *(from + 1) == '\\' || *(from + 1) == '{' || *(from + 1) == '#') {
|
|
if (from > start) subvarValue.append(start, int(from - start));
|
|
start = ++from;
|
|
} else if (*(from + 1) == 'n') {
|
|
if (from > start) subvarValue.append(start, int(from - start));
|
|
|
|
subvarValue.append('\n');
|
|
|
|
start = (++from) + 1;
|
|
}
|
|
} else if (*from == '{') {
|
|
throw Exception(QString("Unexpected tag inside counted tag '%1' in '%2' key!").arg(QLatin1String(tagName)).arg(QLatin1String(varName)));
|
|
} else if (*from == '#') {
|
|
if (foundtag) throw Exception(QString("Replacement '#' double used inside counted tag '%1' in '%2' key!").arg(QLatin1String(tagName)).arg(QLatin1String(varName)));
|
|
foundtag = true;
|
|
if (from > start) subvarValue.append(start, int(from - start));
|
|
subvarValue.append(tagReplacer.toUtf8());
|
|
start = from + 1;
|
|
}
|
|
++from;
|
|
}
|
|
if (from >= end) throw Exception(QString("Unexpected end of file inside counted tag '%1' in '%2' key!").arg(QString::fromUtf8(tagName)).arg(QString::fromUtf8(varName)));
|
|
if (*from == '"') throw Exception(QString("Unexpected end of string inside counted tag '%1' in '%2' key!").arg(QString::fromUtf8(tagName)).arg(QString::fromUtf8(varName)));
|
|
|
|
if (from > start) subvarValue.append(start, int(from - start));
|
|
if (countedIndex >= lngtags_max_counted_values) throw Exception(QString("Too many values inside counted tag '%1' in '%2' key!").arg(QLatin1String(tagName)).arg(QLatin1String(varName)));
|
|
if (!feedKeyValue(subkeyIndex(varKey, index, countedIndex++), QString::fromUtf8(subvarValue))) throw Exception(QString("Tag '%1' is not counted in key '%2'!").arg(QLatin1String(tagName)).arg(QLatin1String(varName)));
|
|
}
|
|
start = from + 1;
|
|
}
|
|
++from;
|
|
}
|
|
if (from >= end) throw Exception(QString("Unexpected end of file in key '%1'!").arg(QLatin1String(varName)));
|
|
if (from > start) varValue.append(start, from - start);
|
|
|
|
if (!skipJunk(++from, end)) throw Exception(QString("Unexpected end of file in key '%1'!").arg(QLatin1String(varName)));
|
|
if (*from != ';') throw Exception(QString("';' expected after \"value\" in key '%1'!").arg(QLatin1String(varName)));
|
|
|
|
skipJunk(++from, end);
|
|
|
|
if (!feedKeyValue(varKey, QString::fromUtf8(varValue))) throw Exception(QString("Could not write value in key '%1'!").arg(QLatin1String(varName)));
|
|
|
|
return true;
|
|
}
|
|
|
|
LangLoaderPlain::LangLoaderPlain(const QString &file) {
|
|
QFile f(file);
|
|
if (!f.open(QIODevice::ReadOnly)) {
|
|
error(qsl("Could not open input file!"));
|
|
return;
|
|
}
|
|
if (f.size() > 1024 * 1024) {
|
|
error(qsl("Too big file: %1").arg(f.size()));
|
|
return;
|
|
}
|
|
QByteArray data = f.readAll();
|
|
f.close();
|
|
|
|
try {
|
|
const char *from = data.constData(), *end = data.constData() + data.size();
|
|
while (true) {
|
|
if (!readKeyValue(from, end)) {
|
|
break;
|
|
}
|
|
}
|
|
} catch (exception &e) {
|
|
error(QString::fromUtf8(e.what()));
|
|
return;
|
|
}
|
|
}
|