It sounds like the OP wants to capture the number of occurrences entirely within the regex, something like:

$foo =~ m/[0-9]({\d+})/
print "$foo has $1 digit(s)";

[download]

... if that were possible (it isn't). This would allow the counting match to be thrown in with a longer regex that is matching on other properties as well. This is probably possible through clever use of code evaluation (?{code}) and interpolation within the regex.

However, if all you need to do is count in the regex then you could use the 'goatse' operator:

my $length =()= $foo =~ /[0-9]/g;
print "$foo has $length digit(s)";

[download]

Seems better than looping and incrementing, anyway.

Strange things are afoot at the Circle-K.

In reply to Re: Calculating variable {n} in regex match by temporal
in thread Calculating variable {n} in regex match by atreyu

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