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Diffstat (limited to 'qtermwidget/ShellCommand.cpp')
| -rw-r--r-- | qtermwidget/ShellCommand.cpp | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/qtermwidget/ShellCommand.cpp b/qtermwidget/ShellCommand.cpp new file mode 100644 index 0000000..764dd66 --- /dev/null +++ b/qtermwidget/ShellCommand.cpp @@ -0,0 +1,168 @@ +/* + Copyright (C) 2007 by Robert Knight <robertknight@gmail.com> + + Rewritten for QT4 by e_k <e_k at users.sourceforge.net>, Copyright (C)2008 + + 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; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + 02110-1301 USA. +*/ + +// Own +#include "ShellCommand.h" + +//some versions of gcc(4.3) require explicit include +#include <cstdlib> + + +using namespace Konsole; + +// expands environment variables in 'text' +// function copied from kdelibs/kio/kio/kurlcompletion.cpp +static bool expandEnv(QString& text); + +ShellCommand::ShellCommand(const QString& fullCommand) +{ + bool inQuotes = false; + + QString builder; + + for ( int i = 0 ; i < fullCommand.count() ; i++ ) + { + QChar ch = fullCommand[i]; + + const bool isLastChar = ( i == fullCommand.count() - 1 ); + const bool isQuote = ( ch == '\'' || ch == '\"' ); + + if ( !isLastChar && isQuote ) + inQuotes = !inQuotes; + else + { + if ( (!ch.isSpace() || inQuotes) && !isQuote ) + builder.append(ch); + + if ( (ch.isSpace() && !inQuotes) || ( i == fullCommand.count()-1 ) ) + { + _arguments << builder; + builder.clear(); + } + } + } +} +ShellCommand::ShellCommand(const QString& command , const QStringList& arguments) +{ + _arguments = arguments; + + if ( !_arguments.isEmpty() ) + _arguments[0] == command; +} +QString ShellCommand::fullCommand() const +{ + return _arguments.join(QChar(' ')); +} +QString ShellCommand::command() const +{ + if ( !_arguments.isEmpty() ) + return _arguments[0]; + else + return QString(); +} +QStringList ShellCommand::arguments() const +{ + return _arguments; +} +bool ShellCommand::isRootCommand() const +{ + Q_ASSERT(0); // not implemented yet + return false; +} +bool ShellCommand::isAvailable() const +{ + Q_ASSERT(0); // not implemented yet + return false; +} +QStringList ShellCommand::expand(const QStringList& items) +{ + QStringList result; + + foreach( QString item , items ) + result << expand(item); + + return result; +} +QString ShellCommand::expand(const QString& text) +{ + QString result = text; + expandEnv(result); + return result; +} + +/* + * expandEnv + * + * Expand environment variables in text. Escaped '$' characters are ignored. + * Return true if any variables were expanded + */ +static bool expandEnv( QString &text ) +{ + // Find all environment variables beginning with '$' + // + int pos = 0; + + bool expanded = false; + + while ( (pos = text.indexOf(QLatin1Char('$'), pos)) != -1 ) { + + // Skip escaped '$' + // + if ( pos > 0 && text.at(pos-1) == QLatin1Char('\\') ) { + pos++; + } + // Variable found => expand + // + else { + // Find the end of the variable = next '/' or ' ' + // + int pos2 = text.indexOf( QLatin1Char(' '), pos+1 ); + int pos_tmp = text.indexOf( QLatin1Char('/'), pos+1 ); + + if ( pos2 == -1 || (pos_tmp != -1 && pos_tmp < pos2) ) + pos2 = pos_tmp; + + if ( pos2 == -1 ) + pos2 = text.length(); + + // Replace if the variable is terminated by '/' or ' ' + // and defined + // + if ( pos2 >= 0 ) { + int len = pos2 - pos; + QString key = text.mid( pos+1, len-1); + QString value = + QString::fromLocal8Bit( ::getenv(key.toLocal8Bit()) ); + + if ( !value.isEmpty() ) { + expanded = true; + text.replace( pos, len, value ); + pos = pos + value.length(); + } + else { + pos = pos2; + } + } + } + } + + return expanded; +} |