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117 lines
3.5 KiB
C++
117 lines
3.5 KiB
C++
/*
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This file is part of the KDE libraries
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Copyright (c) 2003,2007 Oswald Buddenhagen <ossi@kde.org>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include "kshell.h"
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#include "kuser.h"
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#include "kdebug.h"
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#include <QtCore/QDir>
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#include <stdlib.h>
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namespace KShell {
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QString homeDir( const QString &user )
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{
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if (user.isEmpty())
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return QDir::homePath();
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return KUser(user).homeDir();
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}
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}
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QString KShell::joinArgs( const QStringList &args )
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{
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QString ret;
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for (QStringList::ConstIterator it = args.begin(); it != args.end(); ++it) {
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if (!ret.isEmpty())
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ret.append(QLatin1Char(' '));
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ret.append(quoteArg(*it));
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}
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return ret;
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}
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QString KShell::tildeExpand( const QString &fname )
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{
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if (fname.length() && fname[0] == QLatin1Char('~')) {
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int pos = fname.indexOf( QLatin1Char('/') );
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if (pos < 0)
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return homeDir( fname.mid(1) );
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QString ret = homeDir( fname.mid(1, pos-1) );
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if (!ret.isNull())
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ret += fname.mid(pos);
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return ret;
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} else if (fname.length() > 1 && fname[0] == QLatin1Char('\\') && fname[1] == QLatin1Char('~')) {
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return fname.mid(1);
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}
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return fname;
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}
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static bool isVariableChar(const QChar &ch)
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{
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const char c = ch.toLatin1();
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if ((c >= '0' && c <= '9') || (c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z') || c == '_') {
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return true;
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}
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return false;
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}
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QString KShell::envExpand( const QString &fname )
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{
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QString result = fname;
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int i = 0;
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while (i < result.size()) {
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if (result.at(i) == QLatin1Char('$')
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&& result[i - 1] != QLatin1Char('\\')
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&& result[i + 1] != QLatin1Char('(')) {
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int varstart = i + 1;
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int varend = varstart;
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int varlen = 0;
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while (varend < result.size()) {
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const QChar varchar = result.at(varend);
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if (varchar == QLatin1Char('{')) {
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varstart++;
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varend++;
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varlen++;
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continue;
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}
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if (varchar == QLatin1Char('}')) {
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varlen++;
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varend--;
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break;
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}
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if (!isVariableChar(varchar)) {
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break;
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}
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varlen++;
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varend++;
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}
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const QByteArray varname = result.mid(varstart, varend - i - 1).toLocal8Bit();
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const QString varvalue = QString::fromLocal8Bit(::getenv(varname.constData()));
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// kDebug() << "replacing" << varname << "with" << varvalue);
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result = result.replace(i, varlen + 1, varvalue);
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i = 0;
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continue;
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}
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i++;
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}
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return result;
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}
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