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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
#include "ansifilterparser.h"
namespace {
enum AnsiState {
PLAIN,
ANSI_START,
ANSI_CSI,
ANSI_SEQUENCE,
ANSI_WAITING_FOR_ST,
ANSI_ST_STARTED
};
} // namespace
using namespace ProjectExplorer;
AnsiFilterParser::AnsiFilterParser()
{
setObjectName(QLatin1String("AnsiFilterParser"));
}
void AnsiFilterParser::stdOutput(const QString &line)
{
IOutputParser::stdOutput(filterLine(line));
}
void AnsiFilterParser::stdError(const QString &line)
{
IOutputParser::stdError(filterLine(line));
}
QString AnsiFilterParser::filterLine(const QString &line)
{
QString result;
result.reserve(line.count());
static AnsiState state = PLAIN;
foreach (const QChar c, line) {
unsigned int val = c.unicode();
switch (state) {
case PLAIN:
if (val == 27) // 'ESC'
state = ANSI_START;
else if (val == 155) // equivalent to 'ESC'-'['
state = ANSI_CSI;
else
result.append(c);
break;
case ANSI_START:
if (val == 91) // [
state = ANSI_CSI;
else if (val == 80 || val == 93 || val == 94 || val == 95) // 'P', ']', '^' and '_'
state = ANSI_WAITING_FOR_ST;
else if (val >= 64 && val <= 95)
state = PLAIN;
else
state = ANSI_SEQUENCE;
break;
case ANSI_CSI:
if (val >= 64 && val <= 126) // Anything between '@' and '~'
state = PLAIN;
break;
case ANSI_SEQUENCE:
if (val >= 64 && val <= 95) // Anything between '@' and '_'
state = PLAIN;
break;
case ANSI_WAITING_FOR_ST:
if (val == 7) // 'BEL'
state = PLAIN;
if (val == 27) // 'ESC'
state = ANSI_ST_STARTED;
break;
case ANSI_ST_STARTED:
if (val == 92) // '\'
state = PLAIN;
else
state = ANSI_WAITING_FOR_ST;
break;
}
}
return result;
}
// Unit tests:
#ifdef WITH_TESTS
# include <QTest>
# include "projectexplorer.h"
# include "outputparser_test.h"
# include "task.h"
void ProjectExplorerPlugin::testAnsiFilterOutputParser_data()
{
QTest::addColumn<QString>("input");
QTest::addColumn<OutputParserTester::Channel>("inputChannel");
QTest::addColumn<QString>("childStdOutLines");
QTest::addColumn<QString>("childStdErrLines");
QTest::addColumn<QString>("outputLines");
QTest::newRow("pass-through stdout")
<< QString::fromLatin1("Sometext") << OutputParserTester::STDOUT
<< QString::fromLatin1("Sometext\n") << QString();
QTest::newRow("pass-through stderr")
<< QString::fromLatin1("Sometext") << OutputParserTester::STDERR
<< QString() << QString::fromLatin1("Sometext\n");
QString input = QString::fromLatin1("te") + QChar(27) + QString::fromLatin1("Nst");
QTest::newRow("ANSI: ESC-N")
<< input << OutputParserTester::STDOUT
<< QString::fromLatin1("test\n") << QString();
input = QString::fromLatin1("te") + QChar(27) + QLatin1String("^ignored") + QChar(27) + QLatin1String("\\st");
QTest::newRow("ANSI: ESC-^ignoredESC-\\")
<< input << OutputParserTester::STDOUT
<< QString::fromLatin1("test\n") << QString();
input = QString::fromLatin1("te") + QChar(27) + QLatin1String("]0;ignored") + QChar(7) + QLatin1String("st");
QTest::newRow("ANSI: window title change")
<< input << OutputParserTester::STDOUT
<< QString::fromLatin1("test\n") << QString();
input = QString::fromLatin1("te") + QChar(27) + QLatin1String("[Ast");
QTest::newRow("ANSI: cursor up")
<< input << OutputParserTester::STDOUT
<< QString::fromLatin1("test\n") << QString();
input = QString::fromLatin1("te") + QChar(27) + QLatin1String("[2Ast");
QTest::newRow("ANSI: cursor up (with int parameter)")
<< input << OutputParserTester::STDOUT
<< QString::fromLatin1("test\n") << QString();
input = QString::fromLatin1("te") + QChar(27) + QLatin1String("[2;3Hst");
QTest::newRow("ANSI: position cursor")
<< input << OutputParserTester::STDOUT
<< QString::fromLatin1("test\n") << QString();
input = QString::fromLatin1("te") + QChar(27) + QLatin1String("[31;1mst");
QTest::newRow("ANSI: bold red")
<< input << OutputParserTester::STDOUT
<< QString::fromLatin1("test\n") << QString();
}
void ProjectExplorerPlugin::testAnsiFilterOutputParser()
{
OutputParserTester testbench;
testbench.appendOutputParser(new AnsiFilterParser);
QFETCH(QString, input);
QFETCH(OutputParserTester::Channel, inputChannel);
QFETCH(QString, childStdOutLines);
QFETCH(QString, childStdErrLines);
testbench.testParsing(input, inputChannel,
QList<Task>(), childStdOutLines, childStdErrLines,
QString());
}
#endif
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