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Re: questions about anchoring

2005-06-29 11:03:27
At 10:38 2005-06-29 -0500, Mr Duck wrote:
Ancoring is simply tying something to the begining/end of a line to
ensure that the match happened there and not at some random point in
the middle of a string.

  So, what's the difference between two carets (^^) and one (^)?

^^ anchors to the beginning (or end) of a message. Most often used when matching against a variable. ^^^^ is EMPTY string for instance.

from 'man procmail' (the manpages are your friend):

"       ^^        Anchor the expression at the very start  of  the
                 search area, or if encountered at the end of the
                 expression, anchor it at the  very  end  of  the
                 search area."

---
 Sean B. Straw / Professional Software Engineering

 Procmail disclaimer: <http://www.professional.org/procmail/disclaimer.html>
 Please DO NOT carbon me on list replies.  I'll get my copy from the list.


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