Re: Completion TODO (was: pws-11)

[Peter Stephenson <pws@ifh.de>]

Sven Wischnowsky wrote:
> The current state: condition codes, some of them modifying. Saving and 
> restoring of the special parameters is done automatically on function
> entry and exit (and nowhere else).
> The problems are: modifying condition codes are considered a bad thing 
> and saving/restoring has to be done explicitly.

I haven't followed what's wrong with having the parameters restored
automatically unless compstate[restore] is altered.

If the modification of the parameters is simply to be removed from [[-style
tests, then I still think a builtin is the best way of handling it.
`compset -i 3' ignores three more characters from $PREFIX, or
whatever.  This could allow tests with side effects, like `compset -I
<pattern>' to ignore a pattern at the head of $PREFIX if it matches,
or whatever.  Then you also could have e.g. `compset -n 2 -1', narrow
to words 2 to -1 (same as shifting words and decrementing CURRENT),
`compset -N "start_pat" "optional_end_pat"', narrow to the range of
words between the patterns with the end pattern optional.  If it's
much more complicated than that, I can't imagine I would use it much.
I'm not really enthusiastic about more subscripting hieroglyphics.

-- 
Peter Stephenson <pws@ibmth.df.unipi.it>       Tel: +39 050 844536
WWW:  http://www.ifh.de/~pws/
Dipartimento di Fisica, Via Buonarroti 2, 56100 Pisa, Italy