Completion question

Completion question

[Byron Foster]

Hello,

      I can't figure out how to configure the completion system so that 
only directories are listed after typing 'rm -r ' at the command line, 
but without the the '-r' option only list files.  Can I do this by only 
using styles, or do I need to write an _rm function? Im using zsh 4.0.4

so far for only listing files I have

zstyle ':completion:*:complete:rm:*' file-patterns '*(^-/):files'

Of course this breaks 'rm -r'


Thanks,
Byron

Re: Completion question

[Sven Wischnowsky]

Byron Foster wrote:

> 
> Hello,
> 
>       I can't figure out how to configure the completion system so that 
> only directories are listed after typing 'rm -r ' at the command line, 
> but without the the '-r' option only list files.  Can I do this by only 
> using styles, or do I need to write an _rm function? Im using zsh 4.0.4
> 
> so far for only listing files I have
> 
> zstyle ':completion:*:complete:rm:*' file-patterns '*(^-/):files'
> 
> Of course this breaks 'rm -r'

You can always use the `-e' option and then have a look at the $words
array, which is one of the special parameters set by the completion
code. It contains the word on the line. So:

  zstyle -e ':completion:*:complete:rm:*' file-patterns '
    if (( $words[(I)-r] )); then                                               
      reply=("*(-/):directories")                                                
    else                                                                       
      reply=("*(^-/):files")                                                     
    fi' 

This doesn't catch the case where the `-r' option is put together with
other options in the same string (like `-ir').

Even if there were a function for `rm' which would do option parsing,
there currently were no way of smuggling code into it to take
advantage of the information about options on the line gathered there.
Except for that `-e' thing above (if a `_rm' function would use
_arguments we should have $opt_args available inside that code).


Bye
  Sven

-- 
Sven Wischnowsky                          wischnow@berkom.de

Re: Completion question

[Byron Foster]

Sven Wischnowsky wrote:
 > Byron Foster wrote:
 >
 >
 >>Hello,
 >>
 >>      I can't figure out how to configure the completion system so that
 >>only directories are listed after typing 'rm -r ' at the command line,
 >>but without the the '-r' option only list files.  Can I do this by only
 >>using styles, or do I need to write an _rm function? Im using zsh 4.0.4
 >>
 >>so far for only listing files I have
 >>
 >>zstyle ':completion:*:complete:rm:*' file-patterns '*(^-/):files'
 >>
 >>Of course this breaks 'rm -r'
 >
 >
 > You can always use the `-e' option and then have a look at the $words
 > array, which is one of the special parameters set by the completion
 > code. It contains the word on the line. So:
 >
 >   zstyle -e ':completion:*:complete:rm:*' file-patterns '
 >     if (( $words[(I)-r] )); then 

 >       reply=("*(-/):directories") 

 >     else 

 >       reply=("*(^-/):files") 

 >     fi'

Thanks, that works nicely for both rm and cp.

 > Even if there were a function for `rm' which would do option parsing,
 > there currently were no way of smuggling code into it to take
 > advantage of the information about options on the line gathered there.
 > Except for that `-e' thing above (if a `_rm' function would use
 > _arguments we should have $opt_args available inside that code).

I don't know enough, even though I'm learning,  about the guts of the 
completion functions to really follow what you are saying.  However, 
couldn't you just do what you did in the style definition, but do it in 
the _rm function?  that is select tags based on the contents of $words. 
    Doesn't the _arguments function do this for you?  Again, I don't 
know allot about these function, so I may be making no sense.

Thanks,
Byron

Re: Completion question

[Jérémie Roquet]

2011/6/7  <meino.cramer@gmx.de>:
>>mpla/home/me/data/subdira/subdirb/The Long and winding commandline.wav
>     ^
>
> If I press TAB now, nothing happens, since zsh seems to take the
> whole commandline into account while searching for a possible
> completion. And of course
> "mpla/home/me/data/subdira/subdirb/The Long and winding commandline.wav"
> is not know as a command on my system... ;)
>
> Is it possible to configure zsh to only take the string from the
> beginning up to the position of the cursor into account for the
> completion processing ?

Maybe a stupid answer, but you just have to add a space for the
completion to work as expected, ie:

“mpla /home/me/data/subdira/subdirb/The Long and winding commandline.wav”

…with the cursor just after “mpla”.

Since it's something you probably do often (at least I do), you may
want to automatize:

cmdit() {
  LBUFFER=' '$LBUFFER
  zle beginning-of-line
}
zle -N cmdit
bindkey WHATEVERKEYYOUWANT cmdit

I personally have a set of programs I often add at the beginning of a
line (sudo, dist, archive extractor, gdb, valgrind…), now¹ I only have
to type something like :
 M-x s for sudo
 M-x g for gdb
 M-x v for valgrind
…

The cursor does not move, so I can add additional parameters at the
end, if needed.

Best regards,

¹ https://github.com/Arkanosis/Arkonf/blob/master/zsh/.zsh/prefix

-- 
Jérémie

Re: Completion question

[Peter Stephenson]

On Tue, 7 Jun 2011 00:33:21 +0200
<meino.cramer@gmx.de> wrote:
> Is it possible to configure zsh to only take the string from the
> beginning up to the position of the cursor into account for the
> completion processing ?

"unsetopt completeinword" should certainly help, though it's so
complicated it might not do everything you're asking for.

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


Member of the CSR plc group of companies. CSR plc registered in England and Wales, registered number 4187346, registered office Churchill House, Cambridge Business Park, Cowley Road, Cambridge, CB4 0WZ, United Kingdom
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Re: Completion question

[Jun T.]

At 0:33 AM +0200 11.6.7, meino.cramer@gmx.de wrote:
>Is it possible to configure zsh to only take the string from the
>beginning up to the position of the cursor into account for the
>completion processing ?

Try adding the following line into your .zshrc:

bindkey '^I' expand-or-complete-prefix


(another possibiliy is to use the _prefix completer with the
complete_in_word option, but using expand-or-complete-prefix
would be the simplest one.)

Completion question

[meino.cramer]

Hi,

often I assemble complicate and/or longish commandlines from previous
ones. This include copy'n'paste actions. This also includes action
which are not always done the sequence, which is given by the
paramters of the final commandline.

Suppose I have alreasy pasted this one (">" is the prompt)

>/home/me/data/subdira/subdirb/The Long and winding commandline.wav
                                                                   ^
The cursor is here:"^"

Now I press CTRL-A and type the beginning of the command "mplayer"
like this:


>mpla/home/me/data/subdira/subdirb/The Long and winding commandline.wav
     ^

If I press TAB now, nothing happens, since zsh seems to take the
whole commandline into account while searching for a possible
completion. And of course
"mpla/home/me/data/subdira/subdirb/The Long and winding commandline.wav" 
is not know as a command on my system... ;)

Is it possible to configure zsh to only take the string from the
beginning up to the position of the cursor into account for the
completion processing ?

Thank you very much in advance for any help ! :)

Best regards,
mcc

Re: Completion Question

[Oliver Kiddle]

Sean Johnston wrote:
> % man zs_<tab>
> 
> becomes
> 
> % man zs _
> 
> What I would like would be for this to offer me the various zsh... man pages
> for completion, but it seems to spot that there is an exact match for what

It should do that by default. You must have either the rec_exact option
or accept-exact style set. Try unsetopt rec_exact and if that doesn't
work, look to see if the style is set.

Oliver 

Completion Question

[Sean Johnston]

I'm using 4.2.0 at the moment. I recently rejigged all my startup files and
am using all the completion stuff that comes with this version. Mostly
defaults everywhere.

However, how do I get completion to always offer a choice, even if what I
have already typed has an exact match? I noticed this with man pages
initially, which wasn't too bothersome, but now its annoying me with
directories.

_ marks the cursor position

% man zs_<tab>

becomes

% man zs _

What I would like would be for this to offer me the various zsh... man pages
for completion, but it seems to spot that there is an exact match for what
I've typed and just take that rather than offer me everything that begins zs
(including zs itself).

Sean.

_____________________________________________________________________
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Re: completion question

[Oliver Kiddle]

On 5 Feb, Le Wang wrote:
> Hi,
> 
> I have a script that is basically a proxy to run other commands and show the
> output in a new xterm window, e.g.
> 
> ~> xr make
> 
> In this case, how can I get the completion system to ignore "xr" and complete
> for the command?

compdef _precommand xr

> Ohh, and xr can take a single option --nopause, but the option should always
> come before make.

Then you'll need a function specifically for xr:
_xr() { _arguments '--nopause' '*::command:_normal' }

> I'm just starting out with the completion system, the complexity involved
> seems, well, mind boggling.  What are some good resources?

Best introduction is John Beppu's Linux Magazine articles which are
linked to from:
http://zsh.sunsite.dk/links.html

Next, you could try the user guide:
http://zsh.sunsite.dk/Guide/zshguide.html

Oliver

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completion question

[Le Wang]

Hi,

I have a script that is basically a proxy to run other commands and show the
output in a new xterm window, e.g.

~> xr make

In this case, how can I get the completion system to ignore "xr" and complete
for the command?

Ohh, and xr can take a single option --nopause, but the option should always
come before make.

I'm just starting out with the completion system, the complexity involved
seems, well, mind boggling.  What are some good resources?

Many thanks.

--
Le

______________________________________________________________________ 
Post your free ad now! http://personals.yahoo.ca

Re: Completion question

[Sven Wischnowsky]

jarausch@igpm.rwth-aachen.de wrote:

> is there any simple means to enable filename completion
> in situations like this one
> 
> export PATH=/usr/local/lib/libper  <TAB>
> 
> I always have to first insert a blank after '='
> and then remove it after completion.
> Can I tell the completion system to 'split' after
> a certain character (like '=') here.

With `completion system', do you mean the new, function-based one?

That does all this automatically for me. Even recognising that $PATH
gets a colon-separated list of directories.


If you are using compctl (which you shouldn't), use something like:

  compctl -v -x 'C[0,*:*] n[-1,:]' -f - 'C[0,*=*] n[1,=]' -f -- export

(I think it was...)


Bye
  Sven

-- 
Sven Wischnowsky                          wischnow@berkom.de

Completion question

[jarausch]

Hi all,

is there any simple means to enable filename completion
in situations like this one

export PATH=/usr/local/lib/libper  <TAB>

I always have to first insert a blank after '='
and then remove it after completion.
Can I tell the completion system to 'split' after
a certain character (like '=') here.

Many thanks for a hint,


Helmut Jarausch

Lehrstuhl fuer Numerische Mathematik
Institute of Technology, RWTH Aachen
D 52056 Aachen, Germany

Re: completion question

[Bart Schaefer]

On Jul 29,  7:15pm, Eric D. Friedman wrote:
}
} There usually isn't anything else besides `CVS' at the `com' and
} `company' levels and it'd be nice if I could just cd right on through.
} I tried fignore, but that seems to be for extensions only, not for
} complete names.

If you're using `compinit', you can do this:

    zstyle ':completion:*:cd:*' ignored-patterns '(*/)#CVS'

With old compctl, it's something like

    compctl -g '*~(*/)#CVS(/)' cd

(which requires extendedglob).

-- 
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   

completion question

[Eric D. Friedman]

Does anyone have completion code that will exclude CVS directories
when I type `cd [TAB]'

I tend to have a lot of spare,deep directory structures in my CVS
modules, and it'd be nice to be able to press tab when cd'ing into
a directory that has only one non-CVS entry.

An example:

% cd <Module>/src/com/company/foo/bar/baz

There usually isn't anything else besides `CVS' at the `com' and `company'
levels and it'd be nice if I could just cd right on through.  I tried
fignore, but that seems to be for extensions only, not for complete names.

Thanks,
Eric

Re: completion question

[Sven Wischnowsky]

And I forgot to say:

dLux wrote:

> Yes,  absolutely.  I   don't  have  chance  to  read   the  whole  zsh
> documentation, it is very huge!

For the completion system (and other things), start with Peter's user
friendly user's guide, available at www.zsh.org.  Very good reading.


Bye
  Sven


-- 
Sven Wischnowsky                         wischnow@informatik.hu-berlin.de

Re: completion question

[Sven Wischnowsky]

dLux wrote:

> ...
> 
> Yes,  absolutely.  I   don't  have  chance  to  read   the  whole  zsh
> documentation, it is very huge!
> 
> I want  zsh to ignore the  "local/" part of the  example, and complete
> the word as I want...

If you use compctl-based completions, just use another key binding:

  bindkey '^I' expand-or-complete-prefix

That `-prefix' means that it will ignore the `suffix', i.e. the part
after the cursor when completing.

If you use the new completion system (the one invoked by `compinit'),
then, as Andrej pointed out, you want to use the _prefix completer which
does the same. You set that up with:

  zstyle ':completion:*' completer _complete _prefix

to make it try normal completion (from both ends if `completeinword' is
set) first, or by using the _prefix completer exclusively:

  zstyle ':completion:*' completer _prefix
  zstyle ':completion:*:prefix:*' completer _complete

(or whichever completer you use or compinstall has set up for you).


Bye
  Sven


-- 
Sven Wischnowsky                         wischnow@informatik.hu-berlin.de

Re: completion question

[dLux]

/--- On Wed, Jul 04, 2001 at 04:02:17PM +0300, Nadav Har'El wrote:
| Maybe what is bothering him is that if you do
|
|      /u_local/
|        ^--- cursor (no space)
| and  press  TAB,  nothing  is  completed.  If  you  enter  a  slash,
| however, it works:
|
|     /u/_local/ (or /u_/local/)
| is completed to
|     /usr/local/
|
| But   if  you   don't   type  in   that   extra  slash   explicitly,
| completeinword doesn't
| seem to be doing what he wants.
\---

Yes,  absolutely.  I   don't  have  chance  to  read   the  whole  zsh
documentation, it is very huge!

I want  zsh to ignore the  "local/" part of the  example, and complete
the word as I want...

dLux
--
         ... Végy egy Magnumot és fogd rá a Nyuszira!

RE: completion question

[Andrej Borsenkow]

> Maybe what is bothering him is that if you do
>
>      /u_local/
>        ^--- cursor (no space)
> and press TAB, nothing is completed. If you enter a slash,
> however, it works:
>
>     /u/_local/          (or /u_/local/)
> is completed to
>     /usr/local/
>

Ah, I see. Well, somebody else have to answer this. I guess, this is what
_prefix completer is for, but I never used it. As a quick try (assuming, you
are using new completion):

bor@itsrm2% setopt completeinword
bor@itsrm2% zstyle ':completion:*' completer _oldlist _prefix _complete
_match
bor@itsrm2% l /usTABcal
bor@itsrm2% l /usr/cal
                             ^ cursor here

It still behaves differently; zsh totally ignores suffix, while bash not.
Next TAB in above example gives you

in bash:

MW1G017@MW1G17C ~
$ ls /usr/cal
bin             include         local           share
doc             info            logs            src
etc             lib             man             ssl
i686-pc-cygwin  libexec         sbin            tmp

in zsh:

bor@itsrm2% l /usr/TT_DB/cal
Completing files
TT_DB/       add-on/      adm@         admin/       bin/         ccs/
crash@       dt@          games/       ic/          include/     lbin/
lib/         lib64s/      local/       lost+found/  mail@        menus/
net/         news@        oasys/       opt/         options@     pkg/
preserve@    pub@         sadm/        sbin/        share/       spool@
src/         sysadm/      tmp@         ucb/         ucbinclude/  ucblib/
vmsys/

(ignore list settings).

I do not know how to make them behave identically.

OTOH in zsh you do not need to go back; just say /u/bTAB and it will be
completed to /usr/bing. Much better :-)

-andrej

Re: completion question

[Nadav Har'El]

On Wed, Jul 04, 2001, Andrej Borsenkow wrote about "RE: completion question":
> 
> > /---  On Wed,  Jul  04, 2001  at  03:10:46PM  +0400, Andrej  Borsenkow
> > wrote:
> > | setopt completeinword
> > \---
> >
> > It does  not exactly  work as  I want... It  simply does  nothing. (at
> > least in zsh 4.0.2, debian sid). :-(
> >
> ... it works; do you use vi or emacs bindings? Do you use old (compctl) or
> new completion? Does it work with zsh -f (as above)?

Maybe what is bothering him is that if you do

     /u_local/
       ^--- cursor (no space)
and press TAB, nothing is completed. If you enter a slash, however, it works:

    /u/_local/          (or /u_/local/)
is completed to
    /usr/local/

But if you don't type in that extra slash explicitly, completeinword doesn't
seem to be doing what he wants.

-- 
Nadav Har'El                        |   Wednesday, Jul  4 2001, 13 Tammuz 5761
nyh@math.technion.ac.il             |-----------------------------------------
Phone: +972-53-245868, ICQ 13349191 |Don't be irreplaceable. If you can't be
http://nadav.harel.org.il           |replaced, you can't be promoted.

RE: completion question

[Andrej Borsenkow]

> /---  On Wed,  Jul  04, 2001  at  03:10:46PM  +0400, Andrej  Borsenkow
> wrote:
> | setopt completeinword
> \---
>
> It does  not exactly  work as  I want... It  simply does  nothing. (at
> least in zsh 4.0.2, debian sid). :-(
>

bor@itsrm2% ~/pkg/bin/zsh -f
itsrm2% bindkey -e
itsrm2% echo $ZSH_VERSION
4.0.2
itsrm2% setopt completeinword
itsrm2% ls /u1/box
                           ^ cursor

go back

itsrm2% ls /u1/mTABbox
                         ^ cursor
itsrm2% ls /u1/mailbox/

so it works; do you use vi or emacs bindings? Do you use old (compctl) or
new completion? Does it work with zsh -f (as above)?

-andrej

RE: completion question

[Andrej Borsenkow]

setopt completeinword

> -----Original Message-----
> From: dLux [mailto:dlux@spam.sch.bme.hu]On Behalf Of dLux
> Sent: Wednesday, July 04, 2001 2:58 PM
> To: zsh-users@sunsite.dk
> Subject: completion question
>
>
> Hello,
>
> I liked  zsh in  the past, but  it is quite  annoying for  bash users,
> that I cannot set the following behaviour:
>
> I start  typing: "ls  bing", then I  go back to  the beginning  of the
> word "bing",  and I type: "/u"  and I press tab.  Bash completes this,
> and it will become "ls /usrbing", but zsh does not do anything.
>
> Can anyone  helping with  this problem?  Can zsh be  set up  to behave
> like bash?
>
> Thanks in advance,
>
> dLux
> --
> Szabadság, szerelem -- ext2 kell nekem
>
>

completion question

[dLux]

Hello,

I liked  zsh in  the past, but  it is quite  annoying for  bash users,
that I cannot set the following behaviour:

I start  typing: "ls  bing", then I  go back to  the beginning  of the
word "bing",  and I type: "/u"  and I press tab.  Bash completes this,
and it will become "ls /usrbing", but zsh does not do anything.

Can anyone  helping with  this problem?  Can zsh be  set up  to behave
like bash?

Thanks in advance,

dLux
--
Szabadság, szerelem -- ext2 kell nekem