Re^3: A function to determine if a string is numeric


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Re^3: A function to determine if a string is numeric

by Tux (Canon)

on May 18, 2020 at 12:17 UTC ( [id://11116896]=note: print w/replies, xml )

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in reply to Re^2: A function to determine if a string is numeric
in thread A function to determine if a string is numeric

That is documented behavior:

NOT A BUG
 • The various patterns are not anchored. That is, a pattern like "$RE
+{num}{int}"
   will match against "abc4def", because a substring of the subject ma
+tches.
   This is by design, and not a bug. If you want the pattern to be anc
+hored, use
   something like:

     my $integer = $RE{num}{int};
     $subj =~ /^$integer$/ and print "Matches!\n";
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Enjoy, Have FUN! H.Merijn