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#autoload
# a separated list where each component of the list uses the same
# function.
# -n num : number of items in list [default is unlimited]
# -s sep : specify separator [defaults to comma]
# -d : duplicate values allowed
local curcontext="$curcontext" nm="$compstate[nmatches]" pre qsep nosep minus
local -a opts sep num pref suf cont end uniq dedup
zparseopts -D -a opts s:=sep n:=num p:=pref i:=pref P:=pref I:=suf S:=suf \
q=suf r:=suf R:=suf C:=cont d=uniq M+: J+: V+: 1 2 o+: X+: x+:
(( $#cont )) && curcontext="${curcontext%:*}:$cont[2]"
(( $#sep )) || sep[2]=,
if (( $+suf[(r)-S] )); then
end="${(q)suf[suf[(i)-S]+1]}"
(( $#end )) && compset -S ${end}\* && suf=() && nosep=1
fi
qsep="${sep[2]}"
compquote -p qsep
if (( ! $#uniq )); then
(( $+pref[(r)-P] )) && pre="${(q)pref[pref[(i)-P]+1]}"
dedup=( "${(@)${(@ps.$qsep.)PREFIX#$pre}[1,-2]}" "${(@)${(@ps.$qsep.)SUFFIX}[2,-1]}" )
[[ -n $compstate[quoting] ]] || dedup=( ${(Q)dedup} )
fi
if (( $#num )) && compset -P $(( num[2] - 1 )) \*${(q)qsep}; then
pref=()
else
(( ! nosep && (!$#num || num[2] > 1) )) && suf=( -S ${qsep} -r "$end[1]${(q)qsep[1]} \t\n\-" )
compset -S ${(q)qsep}\* && suf=()
compset -P \*${(q)qsep} && pref=()
fi
(( minus = argv[(ib:2:)-] ))
"${(@)argv[1,minus-1]}" "$opts[@]" -F dedup "$pref[@]" "$suf[@]" "${(@)argv[minus+1,-1]}"
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