Shoutbox

Okay, you still remember my Calculator? And all the trouble we had with it?

Well, it returned. Since I'm working intensively on it to get it ready for the contest, I bumped on probably the craziest problem I ever had with it.
When I try to calculate this:

quote:

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-Sin(2)

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it fails. The problem lies in this line of code:

code:

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if (typeof(Math[Token.toLowerCase()])=="function" || eval("typeof("+(Token.toLowerCase())+")=='function'")) {

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since Token has a value of "-Sin" and thus the first statement fails and the second returns an error. ("typeof(-Sin) == 'function'" doesn't work because of the negation sign) I did note that Shondoit, the original creator of the calculating functions (<3), already tried to fix this by using:

code:

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var firstChar = this.charAt(i-Token.length);
...
if(firstChar == "-") Token = "-" + Token;

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but that's placed in the if-statement and it doesn't seem to work outside it either. Soo... if some very clever person reads this and takes a look at the functions, I'd appreciate it enormously if you can give some hints to fix it.

The attachment contains a snip from my code which executes the calculations. To use it, use something like this:

code:

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var str = "-Sin(2)";
Debug.Trace(str.Calculate());

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Thanks in advance!

code:

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Token += this.charAt(i++ + 1);

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Sorry for posting without giving a good answer, but that really hurts my eyes!! Please make it:

code:

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Token += this.charAt(++i);

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And this doesn't look Ok to me either:

code:

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if (/^degrees?$/i.test(Angle)){
   Token = Func + "*180";
} else if (/^grad$/i.test(Angle)) {
   Token = Func + "*200";
}

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Okay, but that doesn't really fix the problem. (And what's wrong with the degrees/grad anyway?)
I'd like to ask Shondoit about it but I didn't see him in months.

Maybe someone else?