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Re^2: Too much recursion

by jrvd (Novice)
on Jun 27, 2013 at 15:29 UTC ( #1041037=note: print w/replies, xml ) Need Help??

in reply to Re: Too much recursion
in thread Too much recursion


Thanks for your help. I have put my entire code so that you may see where my variables were initialized.

#!/usr/bin/perl use strict; use warnings; my $fileName = "version.txt"; my $fileDest = "version_modified.txt"; die "Problème d'ouverture du fichier $fileName" unless open(my $fh, '< +', $fileName); die "Problème de création du fichier $fileDest" unless open(my $fd, '> +', $fileDest); my $tot = 0; my $tot2 = 0; sub hostname; sub hostname{ print $fd $_; while (<$fh>){ if ($_ =~ /^hostname /){ hostname; }else{ # print $_; $tot2++; } } $tot++; } while(<$fh>){ hostname if ($_ =~ /^hostname /); } print $tot."\n"; print $tot2."\n"; close $fh; close $fd;

I am not sure if the code you suggested should only replace a certain part. I might not have correctly expressed what I was looking for however. What I need to do is find the line containing "hostname ", print that, then do some various modifications on the following lines until I find another "hostname " and repeat. Right now, all I was doing was incrementing $tot2 until I got this to work but eventually this will change.



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Re^3: Too much recursion
by mprentice (Sexton) on Jun 27, 2013 at 15:46 UTC

    Seems like you can do the same without a recursion:

    Update: Add "print $fd $_" to preserve original behavior.

    sub hostname{ print $fd $_; while (<$fh>){ if ($_ =~ /^hostname /){ print $fd $_; $tot++; next; }else{ $tot2++; } } $tot++; # keep initial increment }

      Works exactly the way I need it! Thanks!


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[corenth]: I'm a pragmatic free-software advocate. I'll play in a walled sandbox when I need to.
[erix]: hm, there's a FANN perl module - looks a bit old
[Cosmic37]: I'm afraid I don't know the answer to your map question...... what were the references too?
[corenth]: each reference was to a fairly small scaler.
[corenth]: I mean, array of scalers. usually triples.
[Cosmic37]: there is a FANN discussion group but seems to have gone quiet... http://leenissen. dk/fann/forum/ viewforum.php?f=18 &sid=1afc1fb3fa1a3 7f52b03e40d05cdaaa 3

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