EQUALS =command expansion

EQUALS =command expansion

[Atom Smasher]

this does what i'd expect:

  $ ls -lh =lpr-portrait =lpr-landscape
  -rwxr-xr-x  1 atom  atom  89B Nov 21 04:13 /home/atom/bin/lpr-landscape
  -rwxr-xr-x  1 atom  atom  88B Nov 21 04:11 /home/atom/bin/lpr-portrait


but if i try to use TAB to expand "=lpr-*" it doesn't work. even without a 
TAB expansion, i get this:

  $ ls -lh =lpr-*
  zsh: lpr-* not found

another example that i'd expect to "just work":
  $ ls -l =*grep
  zsh: *grep not found

i'd expect that to return:
  /usr/bin/grep
  /usr/bin/egrep
  /usr/bin/fgrep
  /usr/bin/bzgrep
  /usr/bin/bzegrep
  /usr/bin/bzfgrep
  /usr/bin/zgrep
  /usr/bin/zegrep
  /usr/bin/zfgrep
  /usr/bin/pgrep
  /usr/local/bin/msggrep
  /usr/local/bin/zipgrep
  /usr/local/bin/pcregrep

(a lot of greps, and i haven't even installed ngrep on this box, yet.)

ZSH_VERSION=4.3.2

intuitively, the string "=lpr-*" should expand both with the TAB and when 
executed on the command line. a quick look at the man pages doesn't seem 
to indicate that this wouldn't work.

  1) is this a zsh bug?
  2) a documentation bug?
  3) operator error?

thanks...


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         ...atom

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Re: EQUALS =command expansion

[Peter Stephenson]

On Thu, 23 Nov 2006 23:57:06 -0500 (EST)
Atom Smasher <atom@smasher.org> wrote:

> but if i try to use TAB to expand "=lpr-*" it doesn't work.

It should work if you are using the new completion system
and the GLOB_COMPLETE option is set.  If it's not set,
you should still be able to complete =lpr- without the *
(* is not a standard completion syntax, it's usually used
for expansion on the command line).

>   $ ls -lh =lpr-*
>   zsh: lpr-* not found

That's not how it works.  The filename expansion "=" is performed
first, searching for the path to a file name (not a pattern).
When that's finished filename generation handles the *.
That's why they're in different sections in the manual in that
order.

-- 
Peter Stephenson <pws@csr.com>                  Software Engineer
CSR PLC, Churchill House, Cambridge Business Park, Cowley Road
Cambridge, CB4 0WZ, UK                          Tel: +44 (0)1223 692070


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