I'm trying to get a check that tests the first letter or the full word of parameters and it is failing (or succeeding I suppose).
use strict;
use warnings;
use Pod::Usage;
my $format = {
abc => 1,
bar => 1,
fii => 1,
wee => 1,
};
my $opts;
$opts->{params} = ["a", "b"];
if (!grep { /^(join('|', $opts->{params}))/i } keys %$format)
{
pod2usage( -verbose => 0, -output => \*STDERR,
-msg => "$0 bad parameter difinition used [" . join(", ", so
+rt {$a cmp $b} @{$opts->{params}}) . "].\n" .
"Possible parameters are: " .
join(", ", sort {$a cmp $b} keys %$format) . "\n");
}
print "1\n";
EDIT: It seems I haven't defined what should succeed and fail - it should match the first characters in a string. So, In the above example with parameters: abc, bar, fii, and wee,
a should succeed
b should succeed
ac should fail
aB should succeed
fA should fail
ee should fail
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