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/***************************************************************************
commandengine.cpp - kfr commands feature class
-------------------
begin : fri aug 13 15:29:46 CEST 2004
copyright : (C) 2004 Emiliano Gulmini
email : emi_barbarossa@yahoo.it
***************************************************************************/
/***************************************************************************
* *
* 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. *
* *
***************************************************************************/
// QT
#include <qdatetime.h>
#include <qfile.h>
#include <qtextstream.h>
#include <qdom.h>
// KDE
#include <kuser.h>
#include <krandomsequence.h>
#include <kprocess.h>
// local
#include "commandengine.h"
QString CommandEngine::datetime(const QString& opt, const QString& arg)
{
Q_UNUSED(arg);
if(opt == "iso")
return QDateTime::currentDateTime(Qt::LocalTime).toString(Qt::ISODate);
if(opt == "local")
return QDateTime::currentDateTime(Qt::LocalTime).toString(Qt::LocalDate);
return QString::null;
}
QString CommandEngine::user(const QString& opt, const QString& arg)
{
Q_UNUSED(arg);
KUser u;
if(opt == "uid")
return QString::number(u.uid(),10);
if(opt == "gid")
return QString::number(u.gid(),10);
if(opt == "loginname")
return u.loginName();
if(opt == "fullname")
return u.fullName();
if(opt == "homedir")
return u.homeDir();
if(opt == "shell")
return u.shell();
return QString::null;
}
QString CommandEngine::loadfile(const QString& opt, const QString& arg)
{
Q_UNUSED(arg);
QFile f(opt);
if(!f.open(IO_ReadOnly)) return QString::null;
QTextStream t(&f);
QString s = t.read();
f.close();
return s;
}
QString CommandEngine::empty(const QString& opt, const QString& arg)
{
Q_UNUSED(opt);
Q_UNUSED(arg);
return "";
}
QString CommandEngine::mathexp(const QString& opt, const QString& arg)
{
/* We will use bc 1.06 by Philip A. Nelson <philnelson@acm.org> */
//Q_UNUSED(opt);
Q_UNUSED(arg);
QString tempOpt = opt;
tempOpt.replace("ln","l");
tempOpt.replace("sin","s");
tempOpt.replace("cos","c");
tempOpt.replace("arctan","a");
tempOpt.replace("exp","e");
QString program = "var=("+tempOpt+");print var";
QString script = "echo '"+program+"' | bc -l;";
KProcess* proc = new KProcess();
proc->setUseShell(true);
*(proc) << script;
connect(proc, SIGNAL(receivedStdout(KProcess*,char*,int)), this, SLOT(slotGetScriptOutput(KProcess*,char*,int)));
connect(proc, SIGNAL(receivedStderr(KProcess*,char*,int)), this, SLOT(slotGetScriptError(KProcess*,char*,int)));
connect(proc, SIGNAL(processExited(KProcess*)), this, SLOT(slotProcessExited(KProcess*)));
//Through slotGetScriptOutput, m_processOutput contains the result of the KProcess call
if(!proc->start(KProcess::Block, KProcess::All))
{
return QString::null;
}
else
{
proc->wait();
}
if(proc)
delete proc;
QString tempbuf = m_processOutput;
m_processOutput = QString::null;
return tempbuf;
}
QString CommandEngine::random(const QString& opt, const QString& arg)
{
Q_UNUSED(arg);
long seed;
if(opt.isEmpty())
{
QDateTime dt;
seed = dt.toTime_t();
}
else
seed = opt.toLong();
KRandomSequence seq(seed);
return QString::number(seq.getLong(1000000),10);
}
QString CommandEngine::stringmanip(const QString& opt, const QString& arg)
{
Q_UNUSED(opt);
Q_UNUSED(arg);
return "";
}
QString CommandEngine::variableValue(const QString &variable)
{
QString s = variable;
s.remove("[$").remove("$]").remove(" ");
if(s.contains(":") == 0)
return variable;
else
{
QString leftValue = s.section(":",0,0),
midValue = s.section(":",1,1),
rightValue = s.section(":",2,2);
QString opt = midValue;
QString arg = rightValue;
if(leftValue == "stringmanip")
return stringmanip(opt, arg);
if(leftValue == "datetime")
return datetime(opt, arg);
if(leftValue == "user")
return user(opt, arg);
if(leftValue == "loadfile")
return loadfile(opt, arg);
if(leftValue == "empty")
return empty(opt, arg);
if(leftValue == "mathexp")
return mathexp(opt, arg);
if(leftValue == "random")
return random(opt, arg);
return variable;
}
}
//SLOTS
void CommandEngine::slotGetScriptError(KProcess* proc, char* s, int i)
{
Q_UNUSED(proc);
Q_UNUSED(proc);
QCString temp(s,i+1);
if(temp.isEmpty() || temp == "\n") return;
}
void CommandEngine::slotGetScriptOutput(KProcess* proc, char* s, int i)
{
Q_UNUSED(proc);
QCString temp(s,i+1);
if(temp.isEmpty() || temp == "\n") return;
m_processOutput += QString::fromLocal8Bit(temp);
}
void CommandEngine::slotProcessExited(KProcess* proc)
{
Q_UNUSED(proc);
}
#include "commandengine.moc"
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