On Mon, May 23, 2011 at 03:45:39AM +0400, Igor Murzov wrote:
> Hey! I get stuck trying to implement completion script for strings containing
> two parts for completion delimited by '%' sign. For example, `cmd opt%arg`.
> The problem is that, if i hit tab key, when cursor is behind delimeter, bash
> eats first part of string leaving `cmd arg`. I just can't understand why, for
> example `cmd -opt=arg` works just fine, and `cmd opt%arg` is not. What is the
> difference?
>
> I also wrote the simple script to demonstrate the issue:
> ---------------------------------------------------------
> _zz()
> {
> COMPREPLY=()
> local cur="${COMP_WORDS[COMP_CWORD]}"
> if [[ "$cur" == ?*%* ]]; then
> cur="${cur#*%}"
> COMPREPLY=( $( compgen -W 'abc bbb cde' -- "$cur" ) )
> return 0
> fi
>
> compopt -o nospace
> COMPREPLY=( $(compgen -W 'xxx yyy zzz' -- "$cur") )
> } && complete -F _zz zz
> ---------------------------------------------------------
>
> '_init_completion -n %' does not solve the issue either.
>
> -- Igor
>
> _______________________________________________
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> Bash-completion-devel@lists.alioth.debian.org
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At least, the following is correct, and works:
COMPREPLY=()
local cur
_get_comp_words_by_ref cur
if [[ "$cur" == ?*%* ]]; then
pref="${cur%\%*}"%
suf="${cur##*%}"
COMPREPLY=( $( compgen -W "${pref}abc ${pref}bbb ${pref}cde" -- "$cur"
) )
return 0
fi
But:
- I could not get compgen -P "${pref}" to work (sadly)
- you should know that what the word finally written by the completion
process at the end of the command-line is always exactly the same string
than the one which was previously written among the suggestions below the
command-line.
- if you need/want to deal with "suffixes" only, you'll only want suffixes to
be suggested, thus you'll only need suffixes in the compgen string (and
in -- "${cur}")
So I *guess* that you'll have to find how to do the opposite of the -n
flag of _get_comp_words_by_ref(). (the -n flag excludes a character from
COMP_WORDBREAK)
good luck
PS: let me know if you find a proper solution, I had a similar problem
with completions starting by 'http://'.
Raph
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