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/* BEGIN_COMMON_COPYRIGHT_HEADER
* (c)LGPL2+
*
* LXQt - a lightweight, Qt based, desktop toolset
* https://lxqt.org
*
* Copyright: 2013 Razor team
* Authors:
* Christian Surlykke <christian@surlykke.dk>
*
* This program or library is free software; you can redistribute it
* and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*
* END_COMMON_COPYRIGHT_HEADER */
#include <QIODevice>
#include <QRegularExpression>
#include <QDebug>
#include <LXQt/Globals>
#include "yamlparser.h"
YamlParser::YamlParser()
{
state = start;
}
YamlParser::~YamlParser()
{
}
void YamlParser::consumeLine(const QString &line)
{
static QRegularExpression documentStart(QSL("---\\s*(\\[\\]\\s*)?"));
static QRegularExpression mapStart(QSL("(-\\s*)(\\w*)\\s*:(.*)$"));
static QRegularExpression mapEntry(QSL("(\\s*)(\\w*)\\s*:(.*)"));
static QRegularExpression continuation(QSL("(\\s*)(.*)"));
static QRegularExpression documentEnd(QSL("...\\s*"));
static QRegularExpression emptyLine(QSL("\\s*(#.*)?"));
QString anchoredLine = QRegularExpression::anchoredPattern(line);
QRegularExpressionMatch regexMatch;
//qDebug() << line;
if (documentStart.match(anchoredLine).hasMatch())
{
m_ListOfMaps.clear();
state = atdocumentstart;
m_CurrentIndent = -1;
}
else if (state == error)
{
// Skip
}
else if (emptyLine.match(anchoredLine).hasMatch())
{
// Skip
}
else if ((state == atdocumentstart || state == inlist)
&& (regexMatch = mapStart.match(anchoredLine)).hasMatch())
{
m_ListOfMaps << QMap<QString, QString>();
addEntryToCurrentMap(regexMatch.captured(2), regexMatch.captured(3));
m_CurrentIndent = regexMatch.captured(1).size();
state = inlist;
}
else if (state == inlist
&& (regexMatch = mapEntry.match(anchoredLine)).hasMatch()
&& regexMatch.captured(1).size() == m_CurrentIndent)
{
addEntryToCurrentMap(regexMatch.captured(2), regexMatch.captured(3));
}
else if (state == inlist
&& (regexMatch = continuation.match(anchoredLine)).hasMatch()
&& regexMatch.captured(1).size() > m_CurrentIndent)
{
m_ListOfMaps.last()[m_LastKey].append(regexMatch.captured(2));
}
else if ((state == atdocumentstart || state == inlist) && documentEnd.match(anchoredLine).hasMatch())
{
qDebug() << "emitting:" << m_ListOfMaps;
emit newListOfMaps(m_ListOfMaps);
state = documentdone;
}
else
{
qWarning() << "Yaml parser could not read:" << line;
state = error;
}
}
void YamlParser::addEntryToCurrentMap(QString key, QString value)
{
m_ListOfMaps.last()[key.trimmed()] = value.trimmed();
m_LastKey = key.trimmed();
}
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