in reply to Re^3: Recognizing numbers
in thread Recognizing numbers

Also, [0-9] can be simplified with a single \d.

In the old ASCII times: yes.

Today: No.

Unicode has more digits than [0-9]. You can limit the regular expression to match in ASCII mode using the /a or /aa options, this is documented in perlop.

Alexander

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Today I will gladly share my knowledge and experience, for there are no sweeter words than "I told you so". ;-)

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Re^5: Recognizing numbers
by 1nickt (Canon) on Jul 29, 2015 at 02:41 UTC

    Yes, but the /a modifier was not introduced until Perl 5.14 so if you need to run on an older perl than that and you want to match only Latin script numbers, you are back to [0-9] ....

    The way forward always starts with a minimal test.
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