Differential D2015 Diff 6230 src/backends/julia/juliakeywords.cpp

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src/backends/julia/juliakeywords.cpp

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1		/*
2		* This program is free software; you can redistribute it and/or
3		* modify it under the terms of the GNU General Public License
4		* as published by the Free Software Foundation; either version 2
5		* of the License, or (at your option) any later version.
6		*
7		* This program is distributed in the hope that it will be useful,
8		* but WITHOUT ANY WARRANTY; without even the implied warranty of
9		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10		* GNU General Public License for more details.
11		*
12		* You should have received a copy of the GNU General Public License
13		* along with this program; if not, write to the Free Software
14		* Foundation, Inc., 51 Franklin Street, Fifth Floor,
15		* Boston, MA 02110-1301, USA.
16		*
17		* ---
18		* Copyright (C) 2016 Ivan Lakhtanov <ivan.lakhtanov@gmail.com>
19		*/
20		#include "juliakeywords.h"
21
22		#include <QFile>
23		#include <QXmlStreamReader>
24		#include <QtAlgorithms>
25		#include <QStandardPaths>
26		#include <QDebug>
27
28		JuliaKeywords *JuliaKeywords::instance()
29		{
30		static JuliaKeywords *inst = 0;
31		if (inst == 0) {
32		inst = new JuliaKeywords();
33		inst->loadFromFile();
34		qSort(inst->m_keywords);
35		qSort(inst->m_variables);
36		}
37
38		return inst;
39		}
40
41		void JuliaKeywords::loadFromFile()
42		{
43		//load the known keywords from an xml file
44		QFile file(
45		QStandardPaths::locate(
	filipesaraivaUnsubmitted Not Done Once more, give a look in Sage backend to get how to do it. filipesaraiva: Once more, give a look in [[ https://phabricator.kde.
46		QStandardPaths::GenericDataLocation,
47		QLatin1String("cantor/juliabackend/keywords.xml")
48		)
49		);
50
51		if (!file.open(QIODevice::ReadOnly)) {
52		qWarning() << "error opening keywords.xml file. highlighting and"
53		<< "completion won't work";
54		return;
55		}
56
57		QXmlStreamReader xml(&file);
58
59		xml.readNextStartElement();
60		while (xml.readNextStartElement()) {
61		const QStringRef name = xml.name();
62
63		if (name == QLatin1String("keywords")
64		or name == QLatin1String("variables")) {
65		while (xml.readNextStartElement()) {
66		Q_ASSERT(
67		xml.isStartElement() and xml.name() == QLatin1String("word")
68		);
69
70		const QString text = xml.readElementText();
71
72		if (name == QLatin1String("keywords")) {
73		m_keywords << text;
74		} else if (name == QLatin1String("variables")) {
75		m_variables << text;
76		}
77		}
78		} else {
79		xml.skipCurrentElement();
80		}
81		}
82
83		if (xml.hasError()) {
84		qWarning() << "Error parsing keywords.xml:" << xml.errorString();
85		}
86		}