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print output from the text file.

by freekngeek (Acolyte)
on Jan 10, 2013 at 09:23 UTC ( #1012624=perlquestion: print w/replies, xml ) Need Help??

freekngeek has asked for the wisdom of the Perl Monks concerning the following question:

I have a text file in which I have some formulas and some conditions like this for many different cases. This text file is auto generated file so there is no standard input.

COND_RULE { L > 0 AND W > 0} EM_POLYNOMIAL { 0.3802 + (13.4739 * sqrt(W/0.9)) + (4.6272 * ( +W/0.9))
I want to print out the output of that polynomial through a perl script. I am a newbie to the world of perl. So, I just want to know some ideas and what perl topics should I go through with? Thanks :)

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Re: print output from the text file.
by Anonymous Monk on Jan 10, 2013 at 09:26 UTC

    So, I just want to know some ideas and what perl topics should I go through with?

    The cpan? Yeah, the cpan :) math poly, math poly

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Re: print output from the text file.
by blue_cowdawg (Monsignor) on Jan 10, 2013 at 15:07 UTC
        I want to print out the output of that polynomial through a perl script.

    Open an editor and try something and if it don't work then ask. Here's some pseudocode to push you along the way: <code>

    1. Open the file
    2. Iterate through the lines
      1. Remove EOL character
      2. Parse line into tokens
        1. Iterate through the tokens
          1. Enact action based on token, passing file handle and rest of input to action sub

    Each action would have it's own sub to enact the action and would be responsible for parsing input until it was satisfied it had enough.

    Give it a shot.


    Peter L. Berghold -- Unix Professional
    Peter -at- Berghold -dot- Net; AOL IM redcowdawg Yahoo IM: blue_cowdawg
Re: print output from the text file.
by Anonymous Monk on Jan 12, 2013 at 09:37 UTC

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