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#autoload

local opts tmp glob pats expl tag i pat descr minus

zparseopts -a opts \
    '/=tmp' 'f=tmp' 'g+:-=tmp' q n 1 2 P: S: r: R: W: X+: M+: F: J+: V+:

type="${(@j::M)${(@)tmp#-}#?}"
(( $tmp[(I)-g*] )) && glob="${(j: :)${(M)tmp:#-g*}#-g}"

if zstyle -a ":completion:${curcontext}:" file-patterns pats; then
  [[ "$type" = */* ]] && glob="$glob *(-/)"
  pats=( \ ${(M)^${pats//\\%p/ ${glob:-\*} }:#*[^\\]:*} )
else
  if [[ "$type" = *g* ]]; then
    if [[ "$type" = */* ]]; then
      pats=( " ${glob//:/\\:} *(-/):globbed-files" '*:all-files' )
    else
      pats=( " ${glob//:/\\:}:globbed-files"
             '*(-/):directories' '*:all-files' )
    fi
  elif [[ "$type" = */* ]]; then
    pats=( '*(-/):directories' '*:all-files' )
  else
    pats=( '*:all-files' )
  fi
fi

for tag in "${(@)${(@)pats#*[^\\]:}%%:*}"; do

  i="$pats[(I)*[^\\\\]:${tag}(|:*)]"
  pat="${${pats[i]%%:${tag}*}//\\\\:/:}"

  if [[ i -gt 0 && "$pat" != \ # ]]; then
    if [[ "$pats[i]" = *:${tag}:* ]]; then
      descr="${pats[i]#*:${tag}:}"
      minus=()
    else
      descr=file
      minus=(-)
    fi
  fi

  _wanted "$tag" expl "$descr" \
      _path_files -g "$pat" "$opts[@]" "$minus[@]" && return 0

done

return 1