* Beginning of line matching
@ 2002-03-26 12:31 Ian Lynagh
2002-03-26 17:26 ` Bart Schaefer
0 siblings, 1 reply; 2+ messages in thread
From: Ian Lynagh @ 2002-03-26 12:31 UTC (permalink / raw)
To: zsh-users
Hi all
I would have expected ${FOO/(#s)/X} and ${${FOO/(#m)(#s)?/X$MATCH}:-X}
to be equivalent, but it seems that only the second one has the desired
effect when FOO is not empty. Is there a reason the first doesn't behave
as I expected?
Thanks
Ian
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Beginning of line matching
2002-03-26 12:31 Beginning of line matching Ian Lynagh
@ 2002-03-26 17:26 ` Bart Schaefer
0 siblings, 0 replies; 2+ messages in thread
From: Bart Schaefer @ 2002-03-26 17:26 UTC (permalink / raw)
To: Ian Lynagh, zsh-users
On Mar 26, 12:31pm, Ian Lynagh wrote:
}
} I would have expected ${FOO/(#s)/X} and ${${FOO/(#m)(#s)?/X$MATCH}:-X}
} to be equivalent, but it seems that only the second one has the desired
} effect when FOO is not empty. Is there a reason the first doesn't behave
} as I expected?
AFAICT, it's because "start of string" is considered to begin with the
first real character, thus after the implicit intial empty substring.
This should probably be considered a bug.
Compare ${FOO/()/X}, and also ${FOO//()/X} ...
--
Bart Schaefer Brass Lantern Enterprises
http://www.well.com/user/barts http://www.brasslantern.com
Zsh: http://www.zsh.org | PHPerl Project: http://phperl.sourceforge.net
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2002-03-26 12:31 Beginning of line matching Ian Lynagh
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