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Think about Loose Coupling

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Yes, that helped! Here's one option that substitutes the "_" with ".+" for use in a regex (use "." if you want only one letter to match):

use strict; use warnings; my @array1 = qw (fil_ t_xt _erl); my @array2 = qw (Merlin file text fils perl filled); for my $stem (@array1) { my $re = $stem; $re =~ s/_/.+/; /\b$re\b/ and print "$stem: $_\n" for @array2; }


fil_: file fil_: fils fil_: filled t_xt: text _erl: perl

Only whole words are matched, as word boundires (\b) are used in the regex which, if omitted, will also match substrings within the dictionary words.

Hope this helps!

Update: Below is an updated version which adapts BrowserUk's preferred solution:

use strict; use warnings; my @array1 = qw (fil_ t_xt _erl); my @array2 = qw (Merlin file text fils perl filled); my $words = join ' ', @array2; for my $stem (@array1) { my $re = $stem; $re =~ s/_/./; print "$stem: $1\n" while $words =~ /\b($re)\b/g; }


fil_: file fil_: fils t_xt: text _erl: perl

If you want the "_" to be matched by more than one letter in the dictionary words, change the substitution to $re =~ s/_/\\S+/;.

In reply to Re^3: matching the words by Kenosis
in thread matching the words by venky4289

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