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350 lines
10 KiB
350 lines
10 KiB
/***************************************************************************
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kommanderfunctions.cpp - Text widget core functionality
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-------------------
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copyright : (C) 2004 Michal Rudolf <mrudolf@kdewebdwev.org>
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#include <iostream>
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#include <stdlib.h>
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#include <tqfile.h>
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#include <tqregexp.h>
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#include <textstream.h>
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#include <dcopclient.h>
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#include <kapplication.h>
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#include <kconfig.h>
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#include <klocale.h>
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#include <kglobal.h>
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#include "kommanderwidget.h"
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#include "specials.h"
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#include "specialinformation.h"
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#include "expression.h"
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#include "parser.h"
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TQString KommanderWidget::evalFunction(const TQString& function, const TQStringList& args)
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{
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switch (SpecialInformation::function(Group::Kommander, function)) {
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case Kommander::widgetText:
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return handleDCOP(DCOP::text);
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case Kommander::selectedWidgetText:
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return handleDCOP(DCOP::selection);
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case Kommander::dcopid:
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return kapp->dcopClient()->appId();
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case Kommander::pid:
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return TQString().setNum(getpid());
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case Kommander::null:
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return TQString();
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case Kommander::comment:
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return TQString("#");
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case Kommander::exec:
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return execCommand(args[0]);
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case Kommander::dcop:
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return DCOPQuery(args);
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case Kommander::parentPid:
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return global("_PARENTPID").isEmpty() ? TQString().setNum(getppid()) : global("_PARENTPID");
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case Kommander::env:
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return TQString(getenv(args[0].latin1()));
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case Kommander::i18n:
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return KGlobal::locale()->translate(args[0]);
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case Kommander::global:
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return global(args[0]);
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case Kommander::setGlobal:
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setGlobal(args[0], args[1]);
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return TQString();
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case Kommander::debug:
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qDebug("%s", args[0].latin1());
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fflush(stderr);
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return TQString();
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case Kommander::echo:
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for (uint i=0; i<args.count(); i++)
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std::cout << args[i].latin1();
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fflush(stdout);
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return TQString();
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case Kommander::readSetting:
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{
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TQString fname = fileName();
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if (!fname.isEmpty())
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{
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KConfig cfg("kommanderrc", true);
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cfg.setGroup(fname);
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return cfg.readEntry(args[0], args[1]);
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}
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return TQString();
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}
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case Kommander::writeSetting:
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{
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TQString fname = fileName();
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if (!fname.isEmpty())
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{
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KConfig cfg("kommanderrc", false);
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cfg.setGroup(fname);
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cfg.writeEntry(args[0], args[1]);
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}
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return TQString();
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}
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case Kommander::dialog:
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if (args.count() > 1)
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return runDialog(args[0], args[1]);
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else
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return runDialog(args[0]);
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case Kommander::expr:
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{
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Expression expr(args[0]);
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bool ok;
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TQVariant value = expr.value(&ok);
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return ok ? value.toString() : TQString();
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}
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default:
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return TQString();
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}
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}
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TQString KommanderWidget::evalExecBlock(const TQStringList& args, const TQString& s, int& pos)
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{
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int f = s.find("@execEnd", pos);
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if (f == -1)
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{
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printError(i18n("Unterminated @execBegin ... @execEnd block."));
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return TQString();
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}
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else
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{
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TQString shell = args.count() ? args[0] : TQString();
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int start = pos;
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pos = f + TQString("@execEnd").length()+1;
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return execCommand(evalAssociatedText(s.mid(start, f - start)), shell);
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}
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}
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TQString KommanderWidget::evalForEachBlock(const TQStringList& args, const TQString& s, int& pos)
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{
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int f = s.find("@end", pos);
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//FIXME: better detection of block boundaries
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if (f == -1)
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{
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printError(i18n("Unterminated @forEach ... @end block."));
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return TQString();
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}
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else
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{
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int start = pos;
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pos = f + TQString("@end").length()+1;
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TQString var = args[0];
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TQStringList loop = TQStringList::split("\n", args[1]);
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TQString output;
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TQString block = substituteVariable(s.mid(start, f - start), TQString("%1_count").arg(var),
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TQString::number(loop.count()));
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TQString varidx = TQString("%1_index").arg(var);
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for (uint i=0; i<loop.count(); i++)
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output += evalAssociatedText(substituteVariable(substituteVariable(block, varidx, TQString::number(i+1)),
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var, loop[i]));
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return output;
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}
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}
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TQString KommanderWidget::evalForBlock(const TQStringList& args, const TQString& s, int& pos)
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{
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int f = s.find("@end", pos);
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//FIXME: better detection of block boundaries
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if (f == -1)
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{
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printError(i18n("Unterminated @forEach ... @end block."));
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return TQString();
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}
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else
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{
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int start = pos;
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pos = f + TQString("@end").length()+1;
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TQString block = s.mid(start, f - start);
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TQString variable = args[0];
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Expression expr;
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int loopstart = expr.value(args[1]).toInt();
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int loopend = expr.value(args[2]).toInt();
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int loopstep = 1;
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if (args.count() > 3)
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{
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loopstep = expr.value(args[3]).toInt();
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if (!loopstep)
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loopstep = 1;
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}
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TQString output;
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for (int i=loopstart; i<=loopend; i+=loopstep)
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{
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output += evalAssociatedText(substituteVariable(block, variable, TQString::number(i)));
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}
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return output;
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}
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}
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TQString KommanderWidget::evalIfBlock(const TQStringList& args, const TQString& s, int& pos)
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{
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int f = s.find("@endif", pos);
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//FIXME: better detection of block boundaries; add error message
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if (f == -1)
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{
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pos = s.length()+1;
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printError(i18n("Unterminated @if ... @endif block."));
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return TQString();
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}
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else
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{
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TQString block = s.mid(pos, f - pos);
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pos = f + TQString("@endif").length()+1;
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Expression expr;
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if (expr.isTrue(args[0]))
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return evalAssociatedText(block);
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return TQString();
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}
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}
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TQString KommanderWidget::evalSwitchBlock(const TQStringList& args, const TQString& s, int& pos)
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{
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int f = s.find("@end", pos);
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//FIXME: better detection of block boundaries; add error message
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if (f == -1)
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{
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printError(i18n("Unterminated @switch ... @end block."));
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return TQString();
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}
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else
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{
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TQString block = s.mid(pos, f - pos);
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pos = f + TQString("@end").length()+1;
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f = parseBlockBoundary(block, 0, "@case");
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bool finished = f == -1;
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while (!finished)
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{
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f += 5;
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int end = parseBlockBoundary(block, f, "@case");
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if (end == -1)
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{
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end = block.length();
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finished = true;
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}
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bool ok;
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TQString value = parseBrackets(block, f, ok);
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if (!ok)
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break;
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if (value == args[0] || value == "*")
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return evalAssociatedText(block.mid(f, end-f));
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f = end;
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}
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return TQString();
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}
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}
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TQString KommanderWidget::evalArrayFunction(const TQString& function, const TQStringList& args)
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{
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Parser parser(internalParserData());
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int fname = SpecialInformation::function(Group::Array, function);
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TQString array = args[0].startsWith("_") ? args[0] : TQString("_")+ args[0];
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if (fname == Array::setValue)
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parser.setArray(array, args[1], args[2]);
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else if (fname == Array::fromString)
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{
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TQStringList lines = TQStringList::split("\n", args[1]);
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for (TQStringList::Iterator it = lines.begin(); it != lines.end(); ++it)
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{
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TQString key = (*it).section('\t', 0, 0).stripWhiteSpace();
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if (!key.isEmpty())
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parser.setArray(array, key, (*it).section('\t', 1));
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}
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}
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else if (!parser.isArray(array))
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return TQString();
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else switch (fname) {
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case Array::value:
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return parser.arrayValue(array, args[1]).toString();
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case Array::keys:
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{
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const TQMap<TQString, ParseNode> map = parser.array(array);
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TQStringList keys;
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for (TQMap<TQString, ParseNode>::ConstIterator it = map.begin(); it != map.end(); ++it)
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keys.append(it.key());
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return keys.join("\n");
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}
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case Array::values:
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{
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const TQMap<TQString, ParseNode> map = parser.array(array);
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TQStringList values;
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for (TQMap<TQString, ParseNode>::ConstIterator it = map.begin(); it != map.end(); ++it)
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values.append(it.data().toString());
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return values.join("\n");
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}
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case Array::clear:
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parser.unsetArray(array);
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return TQString();
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case Array::remove:
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parser.unsetArray(array, args[1]);
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return TQString();
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case Array::count:
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return TQString::number(parser.array(array).count());
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case Array::toString:
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{
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const TQMap<TQString, ParseNode> map = parser.array(array);
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TQString arraystring;
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for (TQMap<TQString, ParseNode>::ConstIterator it = map.begin(); it != map.end(); ++it)
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arraystring += TQString("%1\t%2\n").arg(it.key()).arg(it.data().toString());
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return arraystring;
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}
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default:
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return TQString();
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}
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return TQString();
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}
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TQString KommanderWidget::evalWidgetFunction(const TQString& identifier, const TQString& s, int& pos)
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{
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KommanderWidget* pWidget = parseWidget(identifier);
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if (!pWidget)
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{
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printError(i18n("Unknown widget: @%1.").arg(identifier));
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return TQString();
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}
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if (s[pos] == '.')
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{
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pos++;
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bool ok = true;
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TQString function = parseIdentifier(s, pos);
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TQStringList args = parseFunction("DCOP", function, s, pos, ok);
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if (!ok)
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return TQString();
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args.prepend(pWidget->widgetName());
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TQString prototype = SpecialInformation::prototype(Group::DCOP,
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SpecialInformation::function(Group::DCOP, function));
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return localDCOPQuery(prototype, args);
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}
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else if (pWidget == this)
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{
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printError(i18n("Infinite loop: @%1 called inside @%2.").arg(pWidget->widgetName())
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.arg(pWidget->widgetName()));
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return TQString();
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}
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else if (!pWidget->hasAssociatedText())
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{
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printError(i18n("Script for @%1 is empty.").arg(pWidget->widgetName()));
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return TQString();
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}
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return pWidget->evalAssociatedText();
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}
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