api.cpp
author insilmaril
Mon, 16 Oct 2006 12:42:54 +0000
changeset 390 0e1aeb21cb78
parent 377 5391ab620c95
child 394 67cfa6e6b863
permissions -rw-r--r--
Code simplifications
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#include "api.h"
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#include <qregexp.h>
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API::API()
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{
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	initCommand();
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}
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void API::initCommand()
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{
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	com="";
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	paramList.clear();
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	errorString="";
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	noErr=true;
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}
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void API::parseCommand (const QString &s)
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{
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	initCommand();
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	QRegExp re;
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	int pos;
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	// Get command
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	re.setPattern ("(.*)\\s");
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	re.setMinimal (true);
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	pos=re.search (s);
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	if (pos>=0)
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		com=re.cap(1);
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	// Get parameters
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	paramList.clear();
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	re.setPattern ("\\((.*)\\)");
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	pos=re.search (s);
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	if (pos>=0)
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	{
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		QString s=re.cap(1);
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		QString a;
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		bool inquote=false;
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		pos=0;
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		if (!s.isEmpty())
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		{
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			while (pos<s.length())
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			{
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				if (s.at(pos)=='\"') 
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				{
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					if (inquote)
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						inquote=false;
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					else	
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						inquote=true;
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				}
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				if (s.at(pos)==',' && !inquote)
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				{
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					a=s.left(pos);
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					paramList.append(a);
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					s=s.right(s.length()-pos-1);
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					pos=0;
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				} else
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					pos++;
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			}
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			paramList.append (s);
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		}	
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	}	
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}
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QString API::command()
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{
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	return com;
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}
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QStringList API::parameters()
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{
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	return paramList;
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}
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QString API::errorDesc()
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{
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	return errorString;
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}
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bool API::error()
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{
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	// invert noErr
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	return (noErr) ?false:true;
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}
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void API::setError(const QString &e)
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{
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	noErr=false;
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	errorString=e;
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}
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bool API::checkParamCount (const int &expected)
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{
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	if (paramList.count()!=expected)
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	{
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		errorString=QString("expected %1 parameters, but got %2").arg(expected).arg(paramList.count());
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		noErr=false;
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	} else 
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		noErr=true;
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	return noErr;	
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}
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bool API::checkParamIsInt(const int &index)
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{
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	bool ok;
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	if (index > paramList.count())
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	{
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		errorString =QString("Parameter index %1 is outside of parameter list").arg(index);
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		noErr=false;
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	} else
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	{
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		paramList[index].toInt (&ok, 10);
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		if (!ok)
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		{
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			errorString=QString("Parameter %1 is not an integer").arg(index);
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			noErr=false;
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		} else
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			noErr=true;
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	}	
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	return noErr;
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}
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int API::parInt (bool &ok,const uint &index)
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{
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	if (checkParamIsInt (index))
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		return paramList[index].toInt (&ok, 10);
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	ok=false;
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	return 0;
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}
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QString API::parString (bool &ok,const int &index)
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{
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	// return the string at index, this could be also stored in
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	// a variable later
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	QString r;
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	QRegExp re("\"(.*)\"");
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	int pos=re.search (paramList[index]);
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	if (pos>=0)
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		r=re.cap (1);
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	else	
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		r="";
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	ok=true;
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	return r;
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}