* man page bug for negative pattern?
@ 2014-09-19 9:02 Han Pingtian
2014-09-19 10:11 ` Jérémie Roquet
0 siblings, 1 reply; 5+ messages in thread
From: Han Pingtian @ 2014-09-19 9:02 UTC (permalink / raw)
To: zsh-user
Hi,
In man page of zshexpn, for "^x" negative pattern, it said:
This has a higher precedence than `/'
But I think the precedence should be lower than /, right? Just as the
zshguide said:
In filename generation, the ^ has a lower precedence than a slash:
in page 228.
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: man page bug for negative pattern?
2014-09-19 9:02 man page bug for negative pattern? Han Pingtian
@ 2014-09-19 10:11 ` Jérémie Roquet
2014-09-19 13:50 ` Han Pingtian
0 siblings, 1 reply; 5+ messages in thread
From: Jérémie Roquet @ 2014-09-19 10:11 UTC (permalink / raw)
To: zsh-user
Hi,
2014-09-19 11:02 GMT+02:00 Han Pingtian <hanpt@linux.vnet.ibm.com>:
> In man page of zshexpn, for "^x" negative pattern, it said:
>
> This has a higher precedence than `/'
>
> But I think the precedence should be lower than /, right? Just as the
> zshguide said:
>
> In filename generation, the ^ has a lower precedence than a slash:
>
> in page 228.
The zshguide is wrong there. It also says that “~ is the only globbing
operator to have a lower precedence than /”
--
Jérémie
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: man page bug for negative pattern?
2014-09-19 10:11 ` Jérémie Roquet
@ 2014-09-19 13:50 ` Han Pingtian
2014-09-19 14:02 ` Jérémie Roquet
2014-09-19 14:22 ` Peter Stephenson
0 siblings, 2 replies; 5+ messages in thread
From: Han Pingtian @ 2014-09-19 13:50 UTC (permalink / raw)
To: zsh-users
On Fri, Sep 19, 2014 at 12:11:01PM +0200, Jérémie Roquet wrote:
> Hi,
>
> 2014-09-19 11:02 GMT+02:00 Han Pingtian <hanpt@linux.vnet.ibm.com>:
> > In man page of zshexpn, for "^x" negative pattern, it said:
> >
> > This has a higher precedence than `/'
> >
> > But I think the precedence should be lower than /, right? Just as the
> > zshguide said:
> >
> > In filename generation, the ^ has a lower precedence than a slash:
> >
> > in page 228.
>
> The zshguide is wrong there. It also says that “~ is the only globbing
> operator to have a lower precedence than /”
>
But if "^" has a higher precedence than "/", then
"^foo/bar"
will match any files in "." other than "foo/bar"?
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: man page bug for negative pattern?
2014-09-19 13:50 ` Han Pingtian
@ 2014-09-19 14:02 ` Jérémie Roquet
2014-09-19 14:22 ` Peter Stephenson
1 sibling, 0 replies; 5+ messages in thread
From: Jérémie Roquet @ 2014-09-19 14:02 UTC (permalink / raw)
To: Zsh Users
2014-09-19 15:50 GMT+02:00 Han Pingtian <hanpt@linux.vnet.ibm.com>:
> But if "^" has a higher precedence than "/", then
>
> "^foo/bar"
>
> will match any files in "." other than "foo/bar"?
I'll match any file named “bar” in any subdirectory of “.” other than “foo”.
Think of “higher precedence” as implicit parentheses (even if these
parentheses wouldn't be valid zsh):
Since “^” has higher precedence, “^foo/bar” means “(^foo)/bar”. If “/”
had higher precedence, it'd mean “^(foo/bar)”, but that's not the
case.
Best regards,
--
Jérémie
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: man page bug for negative pattern?
2014-09-19 13:50 ` Han Pingtian
2014-09-19 14:02 ` Jérémie Roquet
@ 2014-09-19 14:22 ` Peter Stephenson
1 sibling, 0 replies; 5+ messages in thread
From: Peter Stephenson @ 2014-09-19 14:22 UTC (permalink / raw)
To: zsh-users
[-- Attachment #1: Type: text/plain, Size: 307 bytes --]
> > > Han Pingtian <hanpt@linux.vnet.ibm.com <javascript:;>>
> > But if "^" has a higher precedence than "/", then
> >
> > "^foo/bar"
> >
> > will match any files in "." other than "foo/bar"?
>
"Has a higher precedence" means it parses as
(^foo) /bar
"Binds more closely" might be a clearer phrase.
pws
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2014-09-19 14:24 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2014-09-19 9:02 man page bug for negative pattern? Han Pingtian
2014-09-19 10:11 ` Jérémie Roquet
2014-09-19 13:50 ` Han Pingtian
2014-09-19 14:02 ` Jérémie Roquet
2014-09-19 14:22 ` Peter Stephenson
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