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/* This file is part of KDevelop
* Copyright (C) 2008 Cédric Pasteur <cedric.pasteur@free.fr>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This program 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
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include "indent_plugin.h"
#include <KPluginLoader>
#include <KPluginFactory>
#include <KAboutData>
#include <QTextStream>
#include <KDebug>
#include <KProcess>
#include <interfaces/icore.h>
#include <interfaces/isourceformattercontroller.h>
using namespace KDevelop;
K_PLUGIN_FACTORY(IndentFactory, registerPlugin<IndentPlugin>();)
K_EXPORT_PLUGIN(IndentFactory(KAboutData("kdevindent","kdevformatters", ki18n("Indent Formatter"), "0.1", ki18n("A formatter using indent"), KAboutData::License_GPL)))
IndentPlugin::IndentPlugin(QObject *parent, const QVariantList&)
: IPlugin(IndentFactory::componentData(), parent)
{
KDEV_USE_EXTENSION_INTERFACE(ISourceFormatter)
m_currentStyle = predefinedStyles().at(0);
}
IndentPlugin::~IndentPlugin()
{
}
QString IndentPlugin::name()
{
// This needs to match the X-KDE-PluginInfo-Name entry from the .desktop file!
return "kdevindent";
}
QString IndentPlugin::caption()
{
return "GNU Indent";
}
QString IndentPlugin::description()
{
// check if indent is installed
KProcess proc;
QStringList args;
args << "--version";
proc.setProgram("indent", args);
int res = proc.execute();
if(res >= 0) //indent was found
return i18n("<b>Indent and Format C Program Source.</b><br />"
"The `indent' program can be used to make code easier to read."
" It can also convert from one style of writing C to another.<br />"
"<b>indent</b> understands a substantial amount about the syntax of C,"
" but it also attempts to cope with incomplete and misformed syntax.<br />"
"Home Page: <a href=\"http://www.gnu.org/software/indent/\">"
"http://www.gnu.org/software/indent/</a>");
else
return ISourceFormatter::missingExecutableMessage("indent");
}
QString IndentPlugin::highlightModeForMime(const KMimeType::Ptr &mime)
{
Q_UNUSED(mime);
return "C++";
}
QString IndentPlugin::formatSourceWithStyle(SourceFormatterStyle style, const QString& text, const KMimeType::Ptr& mime, const QString& leftContext, const QString& rightContext)
{
if (style.content().isEmpty()) {
m_options.clear();
if(style.name() == "KR")
m_options << "-kr";
else if(style.name() == "orig")
m_options << "-orig";
}
else
m_options = style.content().split(' ');
KProcess proc;
QTextStream ios(&proc);
proc.setProgram("indent", m_options);
proc.setOutputChannelMode(KProcess::MergedChannels);
proc.start();
if(!proc.waitForStarted()) {
kDebug() << "Unable to start indent" << endl;
return text;
}
QString useText = text;
//We can only respect the context if it is in a separate line
if(leftContext.endsWith("\n"))
useText = leftContext + useText;
if(rightContext.startsWith("\n"))
useText = useText + rightContext;
proc.write(useText.toLocal8Bit());
proc.closeWriteChannel();
if(!proc.waitForFinished()) {
kDebug() << "Process doesn't finish" << endl;
return text;
}
///@todo Be able to detect errors in formatting, since indent returns the error as the output
QStringList output = ios.readAll().split("\n");
///@todo Correctly remove the contexts, if the context originally had a different ammount of lines
///as it does after formatting, this will chop off the incorrect text portion
//Remove right context
if(rightContext.startsWith("\n"))
output = output.mid(0, (leftContext + text).split("\n").count());
//Remove left context
if(leftContext.endsWith("\n"))
output = output.mid(leftContext.split("\n").count());
return output.join("\n");
}
QString IndentPlugin::formatSource(const QString& text, const KMimeType::Ptr& mime, const QString& leftContext, const QString& rightContext)
{
return formatSourceWithStyle( KDevelop::ICore::self()->sourceFormatterController()->styleForMimeType( mime ), text, mime, leftContext, rightContext );
}
QList<KDevelop::SourceFormatterStyle> IndentPlugin::predefinedStyles()
{
QList<KDevelop::SourceFormatterStyle> styles;
KDevelop::SourceFormatterStyle st = KDevelop::SourceFormatterStyle( "GNU" );
st.setCaption( "GNU" );
styles << st;
st = KDevelop::SourceFormatterStyle( "KR" );
st.setCaption( "Kernighan & Ritchie" );
styles << st;
st = KDevelop::SourceFormatterStyle( "orig" );
st.setCaption( "Original Berkeley indent style" );
styles << st;
return styles;
}
KDevelop::SettingsWidget* IndentPlugin::editStyleWidget(const KMimeType::Ptr &mime)
{
Q_UNUSED(mime);
// return new IndentPreferences();
return 0;
}
QString IndentPlugin::previewText(const KMimeType::Ptr &)
{
return "int foo (){puts(\"Hi\");}\n/* The procedure bar is even less interesting. */\n"
"char * bar () { puts(\"Hello\");}";
}
ISourceFormatter::IndentationType IndentPlugin::indentationType()
{
if(m_options.contains("-nut"))
return ISourceFormatter::IndentWithSpaces;
else
return ISourceFormatter::IndentWithTabs;
}
int IndentPlugin::indentationLength()
{
int idx = m_options.indexOf("^-i\\d+");
if(idx < 0)
return 2;
return m_options[idx].mid(2).toInt();
}
#include "indent_plugin.moc"
// kate: indent-mode cstyle; space-indent off; tab-width 4;
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