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Joe Bloggs 2014-03-26 18:23:21 +00:00
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@ -178,7 +178,7 @@ this will complete the items in $userdirs, aswell as a comma separated list cont
As with _describe, the _alternative function can itself be used in an ACTION as part of a specification for _arguments
or _regex_arguments.
** Writing completion functions using _arguments
With the _arguments function you can create much more sophisticated completion functions.
With the _arguments function you can create more sophisticated completion functions.
Like the _alternative function, _arguments takes a list of specification strings as arguments.
These specification strings can be for specifying options and any corresponding option arguments (e.g. -f filename),
or command arguments.
@ -226,6 +226,27 @@ I have just given you the basics of _arguments specifications here, you can also
repeated options & arguments, options beginning with + insead of -, etc. For more details see the [[http://zsh.sourceforge.net/Doc/Release/Completion-System.html#Completion-System][official documentation]].
Also have a look at the tutorials mentioned at the end of this document, and the completion functions in the [[https://github.com/vapniks/zsh-completions/tree/master/src][src directory]].
** Writing completion functions using _regex_arguments and _regex_words
If you have a complex command line specification with several different possible argument sequences then
the _regex_arguments function may be what you need.
_regex_arguments creates a completion function whose name is given by the first argument.
Hence you need to first call _regex_arguments to create the completion function, and then call that function,
e.g. like this:
#+BEGIN_SRC sh
_regex_arguments _cmd OTHER_ARGS..
_cmd "$@"
#+END_SRC
The OTHER_ARGS should be sequences of specifications for matching & completing sequences of words on the command line.
These sequences can be separated by '|' to represent alternative command line specifications, and you can use
bracketing to arbitrary depth to specify alternate subsequences.
For example:
#+BEGIN_SRC sh
_regex_arguments SEQ1 '|' SEQ2 \( SEQ2a '|' SEQ2b \)
#+END_SRC
this specifies a command line matching either SEQ1, or SEQ2 followed by SEQ2a or SEQ2b.
*** Patterns
* Testing & debugging
To reload a completion function: