/* 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 */ #pragma once enum EntityInTextType { EntityInTextInvalid = 0, EntityInTextUrl, EntityInTextCustomUrl, EntityInTextEmail, EntityInTextHashtag, EntityInTextMention, EntityInTextMentionName, EntityInTextBotCommand, EntityInTextBold, EntityInTextItalic, EntityInTextCode, // inline EntityInTextPre, // block }; class EntityInText; using EntitiesInText = QList; class EntityInText { public: EntityInText(EntityInTextType type, int offset, int length, const QString &data = QString()) : _type(type) , _offset(offset) , _length(length) , _data(data) { } EntityInTextType type() const { return _type; } int offset() const { return _offset; } int length() const { return _length; } QString data() const { return _data; } void extendToLeft(int extent) { _offset -= extent; _length += extent; } void shrinkFromRight(int shrink) { _length -= shrink; } void shiftLeft(int shift) { _offset -= shift; if (_offset < 0) { _length += _offset; _offset = 0; if (_length < 0) { _length = 0; } } } void updateTextEnd(int textEnd) { if (_offset > textEnd) { _offset = textEnd; _length = 0; } else if (_offset + _length > textEnd) { _length = textEnd - _offset; } } static int firstMonospaceOffset(const EntitiesInText &entities, int textLength) { int result = textLength; for_const (auto &entity, entities) { if (entity.type() == EntityInTextPre || entity.type() == EntityInTextCode) { accumulate_min(result, entity.offset()); } } return result; } explicit operator bool() const { return type() != EntityInTextInvalid; } private: EntityInTextType _type; int _offset, _length; QString _data; }; typedef QList EntitiesInText; // text preprocess QString textClean(const QString &text); QString textRichPrepare(const QString &text); QString textOneLine(const QString &text, bool trim = true, bool rich = false); QString textAccentFold(const QString &text); QString textSearchKey(const QString &text); bool textSplit(QString &sendingText, EntitiesInText &sendingEntities, QString &leftText, EntitiesInText &leftEntities, int32 limit); enum { TextParseMultiline = 0x001, TextParseLinks = 0x002, TextParseRichText = 0x004, TextParseMentions = 0x008, TextParseHashtags = 0x010, TextParseBotCommands = 0x020, TextParseMono = 0x040, TextTwitterMentions = 0x100, TextTwitterHashtags = 0x200, TextInstagramMentions = 0x400, TextInstagramHashtags = 0x800, }; EntitiesInText entitiesFromMTP(const QVector &entities); MTPVector linksToMTP(const EntitiesInText &links, bool sending = false); EntitiesInText textParseEntities(QString &text, int32 flags, bool rich = false); // changes text if (flags & TextParseMono) QString textApplyEntities(const QString &text, const EntitiesInText &entities); QString prepareTextWithEntities(QString result, EntitiesInText &entities, int32 flags); inline QString prepareText(QString result, bool checkLinks = false) { EntitiesInText entities; return prepareTextWithEntities(result, entities, checkLinks ? (TextParseLinks | TextParseMentions | TextParseHashtags | TextParseBotCommands) : 0); } void moveStringPart(QChar *start, int32 &to, int32 &from, int32 count, EntitiesInText &entities); // replace bad symbols with space and remove \r void cleanTextWithEntities(QString &result, EntitiesInText &entities); void trimTextWithEntities(QString &result, EntitiesInText &entities);