# povray completion -*- shell-script -*-
# by "David Necas (Yeti)" <[email protected]>

_povray()
{
local cur prev words cword
_init_completion || return

local povcur=$cur pfx oext defoext
defoext=png # default output extension, if cannot be determined FIXME

_expand || return 0

case $povcur in
[-+]I*)
cur="${povcur#[-+]I}" # to confuse _filedir
pfx="${povcur%"$cur"}"
_filedir pov
COMPREPLY=( ${COMPREPLY[@]/#/$pfx} )
return 0
;;
[-+]O*)
# guess what output file type user may want
case $( ( IFS=$'\n'; command grep '^[-+]F' <<<"${words[*]}" ) ) in
[-+]FN) oext=png ;;
[-+]FP) oext=ppm ;;
[-+]F[CT]) oext=tga ;;
*) oext=$defoext ;;
esac
# complete filename corresponding to previously specified +I
COMPREPLY=( $( ( IFS=$'\n'; command grep '^[-+]I' <<<"${words[*]}" ) ) )
COMPREPLY=( ${COMPREPLY[@]#[-+]I} )
COMPREPLY=( ${COMPREPLY[@]/%.pov/.$oext} )
cur="${povcur#[-+]O}" # to confuse _filedir
pfx="${povcur%"$cur"}"
_filedir $oext
COMPREPLY=( ${COMPREPLY[@]/#/$pfx} )
return 0
;;
*.ini\[|*.ini\[*[^]]) # sections in .ini files
cur="${povcur#*\[}"
pfx="${povcur%\["$cur"}" # prefix == filename
[[ -r $pfx ]] || return 0
COMPREPLY=( $(sed -e 's/^[[:space:]]*\[\('"$cur"'[^]]*\]\).*$/\1/' \
-e 't' -e 'd' -- "$pfx") )
# to prevent [bar] expand to nothing. can be done more easily?
COMPREPLY=( "${COMPREPLY[@]/#/$pfx[}" )
return 0
;;
*)
_filedir '@(ini|pov)'
return 0
;;
esac
} &&
complete -F _povray povray xpovray spovray

# ex: ts=4 sw=4 et filetype=sh