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Check string[i] for content [message #34460]

Wed, 23 November 2011 13:51

Wolfgang
Messages: 146
Registered: November 2011
Location: Germany

Experienced Member

Hello,

i try to make something like a parser....

void curve::term_op1(String &term, String &newterm, int &pos)
{
	String justOne = term.Mid(pos,1);
	
	if (justOne.IsEqual("+"))
	{
		newterm << " + ";
		pos++;
	} else if (justOne.IsEqual("-"))
	{
		newterm << " - ";
		pos++;
	} else
	{
		if (IsDigit(justOne))
		{ /* should trigger if it is a number 0-9) */
			newterm << " INT (" << justOne << ") ";
			pos++;
		} else
		{
			newterm << " Something else (" << justOne << ") ";
			pos++;	
		}
	}
}

Of course the "IsDigit" does not work.... can someone tell me how to do this... maybe without a String with 1 character in it (i think its really bad to do it this way?)

Thanks!

Best regards,
Wolfgang

[Updated on: Wed, 23 November 2011 13:52]

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