Custom Error Parser

Allow setting the following items from outside:
* capture regular expression,
* file name, line number and message capture position and
* whether to parse stdout, stderr or both

The parser functions can be unit-tested by running (Debug build of Qt
Creator needed):

qtcreator -test ProjectExplorer,testCustomOutputParsers

The data is passed to the custom parser in
CustomToolChain::outputParser().

The parser information is stored in toolchains.xml together with the
custom toolchain. A configuration widget is provided to set up and test
the regular expression against a sample error message.

Change-Id: I6191df3c44432943e0aeb16c48d8e79d35845d2e
Reviewed-by: Orgad Shaneh <orgads@gmail.com>
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>

src/plugins/projectexplorer/customparser.h

@@ -0,0 +1,93 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Andre Hartmann.
+** Contact: aha_1980@gmx.de
+**
+** 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.
+**
+****************************************************************************/
+
+#ifndef CUSTOMPARSER_H
+#define CUSTOMPARSER_H
+
+#include "ioutputparser.h"
+
+#include <projectexplorer/task.h>
+
+#include <QRegExp>
+
+namespace ProjectExplorer {
+
+class CustomParserSettings
+{
+public:
+    CustomParserSettings();
+
+    bool operator !=(const CustomParserSettings &other) const;
+
+    QString errorPattern;
+    int fileNameCap;
+    int lineNumberCap;
+    int messageCap;
+};
+
+class CustomParser : public ProjectExplorer::IOutputParser
+{
+public:
+    enum CustomParserChannels {
+        ParseNoChannel = 0,
+        ParseStdErrChannel = 1,
+        ParseStdOutChannel = 2,
+        ParseBothChannels = 3
+    };
+
+    CustomParser(const CustomParserSettings &settings = CustomParserSettings());
+    ~CustomParser();
+    void stdError(const QString &line);
+    void stdOutput(const QString &line);
+
+    void setSettings(const CustomParserSettings &settings);
+
+    void setErrorPattern(const QString &errorPattern);
+    QString errorPattern() const;
+    int fileNameCap() const;
+    void setFileNameCap(int fileNameCap);
+    int lineNumberCap() const;
+    void setLineNumberCap(int lineNumberCap);
+    int messageCap() const;
+    void setMessageCap(int messageCap);
+
+private:
+    bool parseLine(const QString &rawLine);
+
+    QRegExp m_errorRegExp;
+    int m_fileNameCap;
+    int m_lineNumberCap;
+    int m_messageCap;
+
+    CustomParserChannels m_parserChannels;
+};
+
+} // namespace ProjectExplorer
+
+#endif // CUSTOMPARSER_H