Re: Integer regex, different results in windows and mac - I just need regex help

[kcott]

G'day hiyesthanks,

Welcome to the Monastery.

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From the code you posted, I'd say the first thing you should do is read "perlretut - Perl regular expressions tutorial".

Here's the regexes you could have used to match the numbers in your DATA section:

$ perl -E '/^0$/ and say for qw{19 -22 498 512 15 -932 0 22 808 17 -32
+}'
0
$ perl -E '/^[1-9]\d*$/ and say for qw{19 -22 498 512 15 -932 0 22 808
+ 17 -32}'
19
498
512
15
22
808
17
$ perl -E '/^-[1-9]\d*$/ and say for qw{19 -22 498 512 15 -932 0 22 80
+8 17 -32}'
-22
-932
-32

That was run on "macOS 10.12.5" using "Perl 5.26.0". I don't have MSWin available to run a comparison; although, I'd be highly surprised if the results differed.

If you believe you're getting different results on various platforms, you should provide details of the OS and Perl you used (as I did above).