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in reply to Using overload to parse arithmetic terms

I may be completely mistaken, but IMHO parenthesis aren't things overload can overload - they're at least not mentioned in overload

To get better qualified help you should specify the code you wrote and mention what exactly "didn't work" in which way- your post is almost in the worst form you can ask such a question: state at least what you did, what you expected and what you got.

regards,
tomte

An intellectual is someone whose mind watches itself.
-- Albert Camus

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Re^2: Using overload to parse arithmetic terms
by esskar (Deacon) on Feb 07, 2006 at 12:43 UTC
    well i, did that: 
    use overload
    '+' => \&add,
    '-' => \&sub,
    '*' => \&mul;

    [download]
    so, i'm able to build a expression that uses +, - and * . Now, i want to be able to detect when the user uses parenthesis as shown above. I know that overload does not support parenthesis, but i hope that somebody has a idea how i can detect those parenthesis.
[reply]
[d/l]

      Hmm, how do you store the expressions? If you store them as a tree, you already have the information necessary, because you can always generate parenthesis for an <+|->-Node with to children on the fly - that's what I meant with showing relevant code - do you store the expression as a tree - otherwise this is a useless info on my part *g*?

      regards,
      tomte

      An intellectual is someone whose mind watches itself.
      -- Albert Camus

[reply]
[d/l]

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