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how to do get digit numbers like -,.?

by virudinesh (Acolyte)
on Jun 01, 2013 at 06:26 UTC ( #1036384=perlquestion: print w/ replies, xml ) Need Help??
virudinesh has asked for the wisdom of the Perl Monks concerning the following question:

use warnings; use strict; my @f =( "Figure. 89-9","Figure 12-8","Figure 1.2"); foreach(@f) { if($_=~m/fig(. |[a-z])*(\d+)(\-(\d+))?/i) { print " $2-$4 \n"; } }

its output comes like

89-9 12-8 1-

but am need output like this one 89-9 12-8 1.2

how to print both one's - (or). how to handle both in single regular expression

Comment on how to do get digit numbers like -,.?
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Re: how to do get digit numbers like -,.?
by Anonymous Monk on Jun 01, 2013 at 06:39 UTC
    Use a "character class" or an alternation, perlintro shows examples of both
Re: how to do get digit numbers like -,.?
by hdb (Parson) on Jun 01, 2013 at 06:49 UTC

    ++ for asking a complete question. Here is a complete answer:

    use warnings; use strict; my @f =( "Figure. 89-9","Figure 12-8","Figure 1.2"); foreach (@f) { print " $1\n" if /(\d+[-.,]\d+)/; }
      Just expanding upon your good answer to include the abbreviation 'Fig':
      perl -E 'my @f =("2013-06-01", "fig 1-1", "Fig. 2.2", "Figure. 89-9"," +Figure 12-8","Figure 1.2"); foreach (@f) { print " $1\n" if /fig(?:ure)?\.?\s(\d+[-.,]\d+)/i; }' 1-1 2.2 89-9 12-8 1.2
Re: how to do get digit numbers like -,.?
by Laurent_R (Vicar) on Jun 01, 2013 at 09:51 UTC

    hdb gave you a solution, but just to make sure that you understand your error, your problem simply comes from the fact that your regex does not include the dot.

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