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Re: is expr's \? regex metachar working?
From: |
Clark Morgan |
Subject: |
Re: is expr's \? regex metachar working? |
Date: |
Thu, 23 Aug 2001 07:54:43 -0700 |
User-agent: |
Mutt/1.2.5i |
On Thu, Aug 23, 2001 at 04:47:31PM +0200, Andreas Schwab wrote:
> ???? The regexp _is_ matching, since expr prints > 0.
$ ./expr "abcdef" : '.*b'
2
$ ./expr "abcdef" : '.*b\+'
2
$ ./expr "abcdef" : '.*b\?'
6
Does this illustrate why I think it's broken?
Remember, the docu says: 0 or 1 matches. It seems to me that \?
matches 0 occurrences always.
- is expr's \? regex metachar working?, Clark O. Morgan, 2001/08/23
- Re: is expr's \? regex metachar working?, Andreas Schwab, 2001/08/23
- Re: is expr's \? regex metachar working?, Clark Morgan, 2001/08/23
- Re: is expr's \? regex metachar working?, Andreas Schwab, 2001/08/23
- Re: is expr's \? regex metachar working?,
Clark Morgan <=
- Re: is expr's \? regex metachar working?, Andreas Schwab, 2001/08/23
- Re: is expr's \? regex metachar working?, Clark Morgan, 2001/08/23
- Re: is expr's \? regex metachar working?, Andreas Schwab, 2001/08/23
- Re: is expr's \? regex metachar working?, Clark Morgan, 2001/08/23
- Re: is expr's \? regex metachar working?, Paul Jarc, 2001/08/23
Re: is expr's \? regex metachar working?, Clark O. Morgan, 2001/08/23