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In which case you will also have to define "numbers" :) integers?, floats? e-notation? Roman? Only ASCII-digits, or also other Unicode numerals?

Let me assume simple integers and floats represented in ASCII (no triad-sep, radix-sep = '.', so valid numbers include 1234 and 0.23, but not DCVII, 2.34e12 or 1,234,567.00

my %count; while (<FH>) { $count{lc $_}++ for grep { !m{^[0-9]+(\.[0-9]+)?$} } m/\w+/g; }

For a complete regular expression to integers and reals, I'd like to refer to Regexp::Common (see $RE{num}).

update: /me just realized that it is overly complex, as \w+ can only match integers without a triad-sep, as . is not included in \w, reducing the loop-line to

$count{lc $_}++ for grep { !m{^[0-9]+$} } m/^\w+$/g;

Enjoy, Have FUN! H.Merijn

In reply to Re^3: compute the occurrence of words by Tux
in thread compute the occurrence of words by BigGer

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