How to execute a command upon loading a module

How to execute a command upon loading a module

[DervishD]

    Hi all :)

    I want to modify the listscroll and menuselect keymaps when
zsh/complist (this is the module which defines it, isn't it?, or
maybe zsh/compctl?) is loaded. By now the only way of doing it is to
load the module by hand and afterwards modify the keybindings, in my
/etc/zshrc. I load the zsh/compctl module, because I've defined a few
dependencies for the completion modules, so loading zsh/compctl, by
hand or by pressing 'TAB', for example, automatically loads the rest
of modules. Is because of this that I'm not sure about which module
defines which keymap O:))

    Since the keymaps doesn't exist until the module is loaded, I
cannot modify them to my likings :(( Can I execute shell code just
after a module is loaded? Can I *create* those keymaps, modify them
and expect the corresponding modules doesn't modify them again?

    Thanks in advance

    Raúl Núñez de Arenas Coronado

-- 
Linux Registered User 88736
http://www.pleyades.net & http://raul.pleyades.net/

Re: How to execute a command upon loading a module

[Peter Stephenson]

DervishD wrote:
>     Since the keymaps doesn't exist until the module is loaded, I
> cannot modify them to my likings :(( Can I execute shell code just
> after a module is loaded? Can I *create* those keymaps, modify them
> and expect the corresponding modules doesn't modify them again?

Simply load the modules with zmodload first.  The completion code only
ensures that they are loaded, it doesn't insist on them being initially
unloaded.

-- 
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: How to execute a command upon loading a module

[Bart Schaefer]

On Oct 9,  5:09pm, DervishD wrote:
} 
}     I want to modify the listscroll and menuselect keymaps when
} zsh/complist (this is the module which defines it, isn't it?

Yes.

}     Since the keymaps doesn't exist until the module is loaded, I
} cannot modify them to my likings :(( Can I execute shell code just
} after a module is loaded?

No, there is no emacs-like eval-after-load hook.

} Can I *create* those keymaps, modify them and expect the corresponding
} modules doesn't modify them again?

No, the module forcibly re-creates and initializes the keymap, discarding
any existing keymap by that name -- and unloading the module deletes the
keymap.  It'd be nice if complist were a little more careful about this,
i.e., check whether the keymap exists and selectively update it, but no.

The only thing you can do is explicitly load the module and then change
the bindings.

Re: How to execute a command upon loading a module

[DervishD]

    Hi Peter :)

 * Peter Stephenson <pws@csr.com> dixit:
> > after a module is loaded? Can I *create* those keymaps, modify them
> > and expect the corresponding modules doesn't modify them again?
> Simply load the modules with zmodload first.

    That's exactly what I'm doing now, I just wondered if a better
way was possible ;)

    Raúl Núñez de Arenas Coronado

-- 
Linux Registered User 88736
http://www.pleyades.net & http://raul.pleyades.net/

Re: How to execute a command upon loading a module

[DervishD]

    Hi Bart :)

 * Bart Schaefer <schaefer@brasslantern.com> dixit:
> }     Since the keymaps doesn't exist until the module is loaded, I
> } cannot modify them to my likings :(( Can I execute shell code just
> } after a module is loaded?
> No, there is no emacs-like eval-after-load hook.

    Well, I don't use emacs, but I can see what you mean. I thought
that modules may have an undocumented hook feature.
 
> } Can I *create* those keymaps, modify them and expect the corresponding
> } modules doesn't modify them again?
> No, the module forcibly re-creates and initializes the keymap, discarding
> any existing keymap by that name -- and unloading the module deletes the
> keymap.  It'd be nice if complist were a little more careful about this,
> i.e., check whether the keymap exists and selectively update it, but no.

    Well, then I'll stick to loading the module explicitly. It
doesn't do no harm, really, I was just wondering if a better or
neater solution existed.

    Thanks :)

    Raúl Núñez de Arenas Coronado

-- 
Linux Registered User 88736
http://www.pleyades.net & http://raul.pleyades.net/