Here is my two cents' worth. I am not sure if it is what you mean. I have made the regexes deliberately somewhat convoluted :) 

#! /usr/bin/perl -w

use warnings;
use diagnostics;
use strict;

eval { action() }; if ($@) { print "error:\n$@\n"; }

sub action {

    my @a = split(/\n/,<<'ENDTEXT');
This is the text we will search through.
Normally you'd have some other source like a file.
Every line here becomes an element in array @a.
ENDTEXT

  my $rregexes = get_regexes();               # get patterns
  my @compiled  = map qr/$_/ix, @$rregexes;   # pre-compile them,
                                              # case insensitive

  print "We got ".  @$rregexes     ." regexes to test:\n";
  
  # show regexes:
  for (my $i=0;$i< @$rregexes  ;$i++) {
      print "--------\nregex $i:\n--------\n";
      print $rregexes->[$i];
  }
 
  print "\nHere we go into matching loop:\n";
  for (my $i=0;$i<@a;$i++) {
    for (my $j=0;$j<@compiled;$j++) {
      if ($a[$i] =~ /$compiled[$j]/) {
        print "$j    match: ".sprintf('%-50s',$a[$i])."<== matched\n";
      }
      else {
        print "$j no match: ".sprintf('%-50s',$a[$i])."\n";
      }
    }
  }
    
}
    
sub get_regexes {

  #
  # Could also read these from config files!
  #

  my @regexes = (); my $i = -1;

  $regexes[++$i] =<<'REGEXTEXT';
        ^              # beginning of string
            .*         # any number of chars
            normally   # 
            .*         # 
        $              # end
REGEXTEXT

  $regexes[++$i] =<<'REGEXTEXT';
        ^              # beginning of string
            .*         # any number of chars
            here       # 
            .*         # 
            element    # 
            .*         # 
        $              # end 
REGEXTEXT

  return \@regexes;
}

[download]

In reply to Re: User configurable regex by erix
in thread User configurable regex by MiggyMan

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.