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To: zsh-users@zsh.org
From: Daniel <quite@hack.org>
Subject: completing and hiding some prefixes
Date: Wed, 7 Aug 2013 20:14:25 +0000 (UTC)
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I have files in ~/foo/. Among them, some are named: fa_abc fa_frog
fa_gag. I want to write completion for a command "fofa", which completes
among these particular files, but omitting the "fa_" prefix. Thus:

  $ fofa [TAB]
  $ fofa abc[TAB]
  $ fofa frog

I tried a few options of compadd, like -p, but it seems I would need to
write a separate function.

It would perhaps be interesting to have something more general, which
can complete for commands on the same pattern, but different
suffix/prefixes.

This is my naive attempt:

#compdef fofa

local cachedir

cachedir=~/foo/
#setopt extendedglob
_arguments '1:foo-cache:_files -W $cachedir  -g "fa_*"'