Differential D8583 Diff 22184 plugins/messageviewer/bodypartformatter/semantic/structureddataextractor.h

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plugins/messageviewer/bodypartformatter/semantic/structureddataextractor.h

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		1		/*
		2		Copyright (c) 2017 Volker Krause <vkrause@kde.org>
		3
		4		This library is free software; you can redistribute it and/or modify it
		5		under the terms of the GNU Library General Public License as published by
		6		the Free Software Foundation; either version 2 of the License, or (at your
		7		option) any later version.
		8
		9		This library is distributed in the hope that it will be useful, but WITHOUT
		10		ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
		11		FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
		12		License for more details.
		13
		14		You should have received a copy of the GNU Library General Public License
		15		along with this library; see the file COPYING.LIB. If not, write to the
		16		Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
		17		02110-1301, USA.
		18		*/
		19
		20		#ifndef STRUCTUREDDATAEXTRACTOR_H
		21		#define STRUCTUREDDATAEXTRACTOR_H
		22
		23		#include <QJsonArray>
		24
		25		class QJsonObject;
		26		class QString;
		27		class QXmlStreamReader;
		28
		29		/** Extract schema.org structured data from HTML text.
		30		* @see https://developers.google.com/gmail/markup/getting-started
		31		*/
		32		class StructuredDataExtractor
		33		{
		34		public:
		35		void parse(const QString &text);
		36		QJsonArray data() const { return m_data; }
		37
		38		private:
		39		/** Try to parse using an actual XML parser. */
		40		void parseXml(const QString &text);
		41		/** Try to find application/ld+json content with basic string search. */
		42		void findLdJson(const QString &text);
		43		/** Try to fix some common HTML4 damage to make @p text consumable for parseXml(). */
		44		QString fixupHtml4(const QString &text) const;
		45		/** Recursive microdata parsing. */
		46		QJsonObject parseMicroData(QXmlStreamReader &reader) const;
		47		/** Element-dependent Microdata property value. */
		48		QString valueForItemProperty(QXmlStreamReader &reader) const;
		49
		50		QJsonArray m_data;
		51		};
		52
		53		#endif // STRUCTUREDDATAEXTRACTOR_H