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Re: How do I search for 9001 or 4001
From: |
Joe Fineman |
Subject: |
Re: How do I search for 9001 or 4001 |
Date: |
Wed, 22 Aug 2012 17:30:08 -0400 |
User-agent: |
Gnus/5.101 (Gnus v5.10.10) Emacs/22.3 (windows-nt) |
Barry Margolin <barmar@alum.mit.edu> writes:
> 4001\|9001 will work. Emacs uses basic regular expressions, which
> means that the extended regexp operators have to be escaped. This
> means you have to use \(, \|, and \) instead of (, |, and ).
Live & learn. I never thought of \| as an escaped |. I thought it
was an approximation to the logicians' $\vee$ for "or".
--
--- Joe Fineman joe_f@verizon.net
||: I wish I had never been born -- but who has such luck? Not :||
||: one in ten thousand. :||