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A Regular Expression Problem in Perl 5.28

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Martin McCormick
March 28, 2023 20:17
A Regular Expression Problem in Perl 5.28
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I've been fighting this for several days and it is a very simple
regular expression problem that should be easy enough for a
second grader but I can't seem to get it to work.

	The string I am interested in testing for starts with 5
or 6 digits in a row and all I need to do is determine that the
first 5 or 6 characters are numbers Period.  That's all.

	For some reason, it has never passed the test.

#!/usr/bin/perl -w
use strict;

use warnings::unused;
use File::Copy;

#main local variables
my $workname  = '106787pdtb';
my $regextest = '/^\d+\{5,\}/';
if ( $workname =~ $regextest ) { print "yes\n"; }

$workname contains the data I am testing.  $regextest is the test
for the first 6 characters.

	I was able to do this the hard way and test with 6 \d's
as in

my $regextest = '\d\d\d\d\d\d';
if ($workname =~ $regextest) {print "yes\n"; }

I got a yes that time but that's not good enough.

I'll probably kick myself when I find out what I am missing, but
I can't seem to get this to work.

	Thank you.

Martin McCormick

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