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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 sep num pref suf 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: 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]}"