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- X-seq: zsh-workers 18965
- From: David Remahl <david@xxxxxxxxxx>
- To: zsh-workers@xxxxxxxxxx
- Subject: Complicated Completions
- Date: Tue, 26 Aug 2003 02:18:25 +0200
- Mailing-list: contact zsh-workers-help@xxxxxxxxxx; run by ezmlm
Hi. I'm new to the list - I did try to search the archives, but I'm
afraid my question is of a more abstract kind.
I have spent some time trying to get to know the completion system. My
aim is to create completion functions for some of the useful and
surprisingly well-documented command line tools specific to Mac OS X
(hdiutil, diskutil, defaults, SystemStarter, ditto to mention a few).
The thing is, some of them use rather peculiar and complex command line
syntaxes, so creating useful completions is quite a challenge.
I would like to request some guidance in creating a completion function
for the hdiutil command. As you know, the documentation is thorough,
but not very friendly to new developers, so I believe all I need is
some help getting started.
I will begin by describing the command line syntax of hdiutil, using
snippets from the man page.
hdiutil verb [options]
Verb is one of the following:
attach, detach, verify, create, convert, burn, help, info, load,
checksum, eject (synonym for detach), flatten, unflatten, imageinfo,
mount (synonym for attach), mountvol, unmount, plugins,
internet-enable, resize, segment, partition, makehybrid, pmap
The set of allowed options depends on the sub command (verb). All verbs
accept the following optional options (duh), all mutually exclusive:
Many verbs accept these options:
-encryption [crypto method]
-shadow [shadow file]
Many verbs take additional options that are specific to that verb. For
example, convert takes the following additional arguments / options:
imagefile (source file name)
-format fmt (fmt is one of UDRW UFBI UDRO UDCO...DC42)
-o dest (destination file name)
-segmentSize [sector count]
-segmentSize <??b|??k|??m|??g|??t??p|??e> like mkfile(8)
info|internet-enable|resize|segment|partition|pmap) take exactly one
filename argument - of a .dmg file. That corresponds to imagefile in
teh above convert example.
Could someone outline how I would arrange the completion function for
this command? The _ifconfig sample gave me some hints, but I'm having
trouble extending it past the verb...
/ Rgds, David Remahl
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