! Aware to Perl: How do I strip blank space from the beginning/end of a string?

How do I strip blank space from the beginning/end of a string?

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The simplest approach, albeit not the fastest, is probably like this:

    $string =~ s/^\s*(.*?)\s*$/$1/;

It would be faster to do this in two steps:

    $string =~ s/^\s+//;
    $string =~ s/\s+$//;

Or more nicely written as:

    for ($string) {
        s/^\s+//;
        s/\s+$//;
    }

Source: Perl FAQ: Data Manipulation
Copyright: Copyright (c) 1997 Tom Christiansen and Nathan Torkington.

(Corrections, notes, and links courtesy of RocketAware.com)

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