Dale <mailto:[EMAIL PROTECTED]> wrote:
: Hi Jeff 'japhy' Pinyan, you wrote:
:
: : if ($line =~ /^[\s\d]+$/) { ... }
:
: Can I just check something here Jeff. I thought the ^ symbol was for
: "not equal", so why does this work when I'm looking for digits?
A circumflex (^) means "not" inside a character class. [a-c] and
[^a-c] are character classes. The first represents characters a, b, or c
and the second represents all characters which are not a, b, or c.
In a regular expression, a circumflex (^) is used as an anchor for
the beginning of the string being matched. The end of the string anchor
is "$".
So $line above, must begin (^) with either \s or \d ([\s\d]) and
continue (+) to the end ($) of the line.
HTH,
Charles K. Clarkson
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