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Re: is expr's \? regex metachar working?


From: Andreas Schwab
Subject: Re: is expr's \? regex metachar working?
Date: 23 Aug 2001 17:21:30 +0200
User-agent: Gnus/5.090003 (Oort Gnus v0.03) Emacs/21.0.105

Clark Morgan <address@hidden> writes:

|> But, and this is a big BUT, expr puts an implied '^' at the beginning of
|> every regexp.  Consequently, when matching a nontrivial pattern, you've got
|> no choice but to add .* at the beginning of the regexp if you want to find
|> a substring.

What wrong with this:

$ expr abcdef : '.*b' '|' abcdef : '.*'

Btw, \? is a GNU extension and is not portable anyway.

Andreas.

-- 
Andreas Schwab                                  "And now for something
SuSE Labs                                        completely different."
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