run-help as a widget

[Peter Stephenson <pws@csr.com>]

On Mon,  7 Dec 2009 01:57:10 +0100
Jörg Sommer <joerg@alea.gnuu.de> wrote:
> I know, this solution is a dirty hack, but it's quick. The better way is
> to fix zsh to call run-help with the whole commandline where the alias
> gets expanded and this commandline gets passed to the second run-help
> call.

I've been using this for a while, it's perhaps time something along these
lines got included in Functions/Zle.  I was a bit surprised to find I
hadn't.

With this it would be worth upgrading run-help and helpers to check if
there's already a full command line there, and to advance past precommand
modifiers.  I thought I'd done some of this, too, but maybe not...
I might simply have been thinking of expansion of aliases.

By the way, note this quotes all buffer words:

  ls foo; rm -rf ~<Esc>h

is safe even if it may not do quite what you actually want, which is quite
hard to guess.  (But I didn't try it quite like that anyway...)


# run-help-widget
#
# This is a widget to replace the builtin widget run-help.
# It passes the entire command line to run-help.  This is often
# more useful.
#
# Typical usage:
#   zle -N run-help run-help-widget

local -a line

if is-at-least 4.3.10; then
  line=(${(q-)${(z)BUFFER}})
else
  line=(${(qq)${(z)BUFFER}})
fi
zle push-line
BUFFER="run-help ${line}"
zle accept-line


-- 
Peter Stephenson <pws@csr.com>            Software Engineer
Tel: +44 (0)1223 692070                   Cambridge Silicon Radio Limited
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