Negative Filename Generation

Negative Filename Generation

[zzapper]

Hi

cygwin-zsh v4.2.0

I'm trying to follow some examples in the zsh doc:

eg the following : list all files beginning x NOT followed by a digit

>\ls x!([0-9])*
zsh: no matches found: x!([0-9])*


What I am I Donald Ducking Up here?
zzapper (vim, cygwin, wiki & zsh)
--

vim -c ":%s/^/WhfgTNabgureRIvzSUnpxre/|:%s/[R-T]/ /Ig|:normal ggVGg?"

http://www.vim.org/tips/tip.php?tip_id=305  Best of Vim Tips

Re: Negative Filename Generation

[Peter Stephenson]

zzapper wrote:
> Hi
> 
> cygwin-zsh v4.2.0
> 
> I'm trying to follow some examples in the zsh doc:
> 
> eg the following : list all files beginning x NOT followed by a digit
> 
> >\ls x!([0-9])*
> zsh: no matches found: x!([0-9])*
> 
> 
> What I am I Donald Ducking Up here?

Did you read the sentence a few lines above the definition of !(...)
that starts

       If the KSH_GLOB option is set ...

?

-- 
Peter Stephenson <pws@csr.com>                  Software Engineer
CSR Ltd., Science Park, Milton Road,
Cambridge, CB4 0WH, UK                          Tel: +44 (0)1223 692070


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Re: Negative Filename Generation

[zzapper]

On Mon, 26 Apr 2004 18:31:00 +0100,  wrote:

>zzapper wrote:
>> Hi
>> 
>> cygwin-zsh v4.2.0
>> 
>> I'm trying to follow some examples in the zsh doc:
>> 
>> eg the following : list all files beginning x NOT followed by a digit
>> 
>> >\ls x!([0-9])*
>> zsh: no matches found: x!([0-9])*
>> 
>> 
>> What I am I Donald Ducking Up here?
>
>Did you read the sentence a few lines above the definition of !(...)
>that starts
>
>       If the KSH_GLOB option is set ...
>
>?
unsetopt KSH_GLOB

Didn't change anything for me

zzapper (vim, cygwin, wiki & zsh)
--

vim -c ":%s/^/WhfgTNabgureRIvzSUnpxre/|:%s/[R-T]/ /Ig|:normal ggVGg?"

http://www.vim.org/tips/tip.php?tip_id=305  Best of Vim Tips

Re: Negative Filename Generation

[zzapper]

Peter

>setopt
interactive
login
monitor
nopromptcr
shinstdin
zle

zzapper (vim, cygwin, wiki & zsh)
--

vim -c ":%s/^/WhfgTNabgureRIvzSUnpxre/|:%s/[R-T]/ /Ig|:normal ggVGg?"

http://www.vim.org/tips/tip.php?tip_id=305  Best of Vim Tips

Re: Negative Filename Generation

[Peter Stephenson]

zzapper wrote:
> On Mon, 26 Apr 2004 18:31:00 +0100,  wrote:
> >> >\ls x!([0-9])*
> >> zsh: no matches found: x!([0-9])*
>
> >Did you read the sentence a few lines above the definition of !(...)
> >that starts
> >
> >       If the KSH_GLOB option is set ...
> >
> >?
> unsetopt KSH_GLOB
> 
> Didn't change anything for me

I was asking whether you'd turned it on, not off.   Try reading the
section (and the phrase I quoted) again.  By the way, the equivalent zsh
syntax is x(^[0-9])*.

However, you will run up against a more subtle problem:  !([0-9]) and
(^[0-9]) don't mean `any character which isn't a single digit', they
mean `any *pattern* which isn't a single digit'.  So if the target
filename is something like x123abc, x will match `x', !([0-9]) will
match the empty string and * will match `123abc'.  This is standard UNIX
behaviour, although more confusing than usual here.

You therefore need to tell it that the * shouldn't begin with digits
either.  Actually, the best way is (almost):

ls x(^[0-9]*)

which matches an x, followed by anything which isn't a string starting
with a single digit.  Unfortunately that looks like a glob qualifier to the
matcher, so you need to tell it it isn't:

ls x(^[0-9]*)(|)

does what you want.  The bit at the end just matches a null string, and
since it has `|' in isn't a glob qualifier.  There are other ways of
doing it, including `setopt no_bare_glob_qual'.

There's no simpler way for patterns in general, but this case (with a
single character) obviously simplifies to:

ls x[^0-9]*

-- 
Peter Stephenson <pws@csr.com>                  Software Engineer
CSR Ltd., Science Park, Milton Road,
Cambridge, CB4 0WH, UK                          Tel: +44 (0)1223 692070


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This email and any files transmitted with it are confidential and
intended solely for the use of the individual or entity to whom they
are addressed. If you have received this email in error please notify
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This footnote also confirms that this email message has been swept by
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