shell - Bash Command-Line Tab Completion Colon Character -


i have implemented bash completions custom commands when parameters contained no special characters in them, compgen mechanism:

    current=${comp_words[comp_cword]}     all=$(_get_all_items)     compreply=( $(compgen -w "$all" -- $current) )     ...     complete -f _prog_compl prog

i use same approach complete items start colon character: :first, :second, ... fails show me / autocomplete them. tried escaping colons backslashes didn't work either. how should escape colons in completion?

the items starting colon, let's say: :first, :second. if write progname , start colon this:

$ progname :<tab here after colon>

i see no completion 2 colons ("::") - 1 of them automatically added line type. if convert colon ordinary character (let's 'b') completion want: bfirst, bsecond...

it relevant note when press tab places ":" next inserted colon , becomes "::".

$ bash --version gnu bash, version 4.1.10(2)-release (i486-slackware-linux-gnu) copyright (c) 2009 free software foundation, inc. license gplv3+: gnu gpl version 3 or later <http://gnu.org/licenses/gpl.html>  free software; free change , redistribute it. there no warranty, extent permitted law.

additionally, have made experiments in shell yield:

$ compgen -w ":aaaa5 :gb2 :cd3" -- ":" :aaaa5 :gb2 :cd3

yet strangely puts ":" sole ":" , makes "::" after type : on command line.

$ complete complete -f _alp_compl alp.sh complete -o nospace -f __dbus_send dbus-send complete -f _myprog_compl myprog complete -o nospace -f __gdbus gdbus complete -o nospace -f __gsettings gsettings

after consulting help-bash@gnu.org got answer:

the colon breaks words completion system (look @ description of comp_wordbreaks shell variable), when type

progname :[tab]

the completion system gets empty word complete. if of possible completions have `:' longest common prefix, completion system insert colon line.

and comp_wordbreaks search yield me answer stackoverflow.

after fixing (my missing) /etc/bash_completion file debian bash completion page, now, colon-initiated completion working will.


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