in reply to Re: count the occurrences of particular word in a file and extract number in ()
in thread count the occurrences of particular word in a file and extract number in ()

Um -- (1) would be an infinite loop, without a "g" in the regex. Use:
use strict; my $count = 0; while( <DATA> ) { print; ++$count while m[the]ig; } print "'the' appeared $count times in 'theFile'\n"; __DATA__ THis is the dawning of the age of Aquarius. Good morning Starshine, the earth says hello. The end.
For #2, simpler code:
my ($extracted_value) = $extract =~/^\( (\d.+) \)$/; # Will be undef if nothing found.

     Syntactic sugar causes cancer of the semicolon.        --Alan Perlis

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Re^3: count the occurrences of particular word in a file and extract number in ()
by BrowserUk (Patriarch) on Mar 20, 2011 at 05:57 UTC
    (1) would be an infinite loop, without a "g" in the regex

    Indeed, now corrected. I explicitly remove the /i (and accidentally the /g), because it would give wrong results if the OP really mean 'the' and not 'The' or 'THE'.

    simpler code: Will be undef if nothing found.

    That is no simpler as you still have to handle the possibility of undef.


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