Beefy Boxes and Bandwidth Generously Provided by pair Networks
Think about Loose Coupling
 
PerlMonks  

Re: Using overload to parse arithmetic terms

by Tomte (Priest)
on Feb 07, 2006 at 12:30 UTC ( #528486=note: print w/ replies, xml ) Need Help??


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


Comment on Re: Using overload to parse arithmetic terms
Download Code
Replies are listed 'Best First'.
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;
    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.

      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

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://528486]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others drinking their drinks and smoking their pipes about the Monastery: (6)
As of 2015-07-31 05:24 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









    Results (274 votes), past polls