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# SPDX-License-Identifier: GPL-2.0
_para_complete()
{
local prg=$1 # the program to execute, either para_client or para_audioc
local cur OLD_IFS list opt
local -i n old_extglob=1 ddpos=-1 # position of the double-dash arg
# This awk script extracts short and long options from the help output.
local script='{
if ($1 ~ "^-[a-zA-Z]," && $2 ~ "^--[a-zA-Z]") {
print substr($1, 0, 2);
gsub("=.*", "", $2)
print $2
} else if ($1 ~ "^--[a-zA-Z]") {
gsub("=.*", "", $1)
print $1
}
}'
# Ask readline to recreate COMP_WORDS using space as the only delimiter.
if [[ "$COMP_WORDBREAKS" != ' ' ]]; then
COMP_WORDBREAKS=' '
return 124
fi
n=$COMP_POINT
cur=
while ((n > 0)); do
let n--;
[[ "${COMP_LINE:$n:1}" == ' ' ]] && break
cur="${COMP_LINE:$n:1}$cur"
done
for ((n = 0; n < $COMP_CWORD; n++)); do
[[ "${COMP_WORDS[$n]}" != '--' ]] && continue
ddpos=$n
break
done
# Figure out whether we need to complete according to options of the
# given program or according to its subcommands. The 'para' shortcut
# is expected to be aliased to 'para_client --' and we always complete
# on subcommands in this case.
if [[ "$cur" == -* ]] && [[ "${COMP_WORDS[0]}" != 'para' ]]; then
# If '--' is none of the previous words, we complete on options
# of the given program.
if ((ddpos < 0 || COMP_CWORD < ddpos)); then
list=$($prg --help | awk "$script")
COMPREPLY=($(compgen -W "$list" -- "$cur"))
return
fi
fi
# Rebuild the command line with the first word and anything up to
# "--" stripped off. Then call the given program with --complete on
# the remainder. Treat the 'para' shortcut as if no double-dash had
# been given. i.e. only strip off the first word.
if [[ "${COMP_WORDS[0]}" == 'para' ]] || ((ddpos < 0)); then
n=0
else
n=$ddpos
fi
shopt -pq extglob || old_extglob=0
shopt -s extglob
list=${COMP_LINE:0:$COMP_POINT}
while ((n >= 0)); do
list=${list##+([^ ])} # remove argument
list=${list##*( )} # remove leading whitespace
let n--
done
((!old_extglob)) && shopt -u extglob
# prg relies on COMP_POINT and COMP_LINE, so adjust these
export COMP_POINT=${#list}
export COMP_LINE=$list
COMPREPLY=($($prg --complete 2>/dev/null))
((${#COMPREPLY[@]} == 0)) && return # oops, $prg did not write any output
# The last line of the output contains the options for compopt, prefixed
# with '-o='.
n=$((${#COMPREPLY[@]} - 1))
OLD_IFS=$IFS
IFS=','
for opt in ${COMPREPLY[$n]#-o=}; do
case "$opt" in
filenames) compopt -o default;;
nospace) compopt -o nospace;;
esac
done
IFS=$OLD_IFS
unset COMPREPLY[$n]
COMPREPLY=($(compgen -W "${COMPREPLY[*]}" -- "$cur"))
}
_para_audioc()
{
_para_complete para_audioc
}
_para_client()
{
_para_complete para_client
}
complete -F _para_audioc para_audioc
complete -F _para_client para_client para
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