zsh/Completion/Core/_files

#autoload

local opts tmp glob pat pats expl tag i def descr end ign ret=1 match tried
local type sdef

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#-}#?}"
if (( $tmp[(I)-g*] )); then
  glob="${${${${(@M)tmp:#-g*}#-g}##[[:blank:]]#}%%[[:blank:]]#}"
  [[ "$glob" = *[^\\][[:blank:]]* ]] &&
      glob="{${glob//(#b)([^\\])[[:blank:]]##/${match[1]},}}"
fi
ign=$opts[(I)-F]
if (( ign )); then
  ign=( $=opts[ign+1] )
  if [[ $ign = _comp_ignore ]]; then
    ign=( $_comp_ignore )
  else
    opts[tmp+1]=_comp_ignore
  fi
else
  ign=
fi

if zstyle -a ":completion:${curcontext}:" file-patterns tmp; then
  [[ "$type" = */* ]] && glob="$glob,*(-/)"
  pats=()

  for i in ${tmp//%p/${${glob:-\*}//:/\\:}}; do
    if [[ $i = *[^\\]:* ]]; then
      pats=( "$pats[@]" " $i " )
    else
      pats=( "$pats[@]" " ${i}:files " )
    fi
  done
else
  if [[ "$type" = *g* ]]; then
    if [[ "$type" = */* ]]; then
      pats=( " ${glob//:/\\:}:globbed-files *(-/):directories" '*:all-files ' )
    else
      pats=( " ${glob//:/\\:}:globbed-files "
             '*(-/):directories ' '*:all-files ' )
    fi
  elif [[ "$type" = */* ]]; then
    pats=( '*(-/):directories ' '*:all-files ' )
  else
    pats=( '*:all-files ' )
  fi
fi

tried=()
for def in "$pats[@]"; do
  eval "def=( ${${def:s/\\:/\\\\\\\\\\\\:}//(#b)([][()|*?^#~<>])/\\${match[1]}} )"
  for sdef in "$def[@]"; do

    tag="${${sdef#*[^\\]:}%%:*}"
    pat="${${sdef%%:${tag}*}//\\:/:}"

    (( $tried[(I)${(q)pat}] )) && continue

    tried=( "$tried[@]" "$pat" )

    if [[ "$sdef" = *:${tag}:* ]]; then
      descr="${(Q)sdef#*:${tag}:}"
    else
      descr=file
      end=yes
    fi

    _tags "$tag"
    while _tags; do
      _comp_ignore=()
      while _next_label "$tag" expl "$descr"; do
        _comp_ignore=( $_comp_ignore $ign )
        if [[ -n "$end" ]]; then
          _path_files -g "$pat" "$opts[@]" "$expl[@]" && ret=0
        else
          _path_files "$expl[@]" -g "$pat" "$opts[@]" && ret=0
        fi
      done
      (( ret )) || break
    done
    [[ "$pat" = '*' ]] && return ret
  done
  (( ret )) || return 0
done

return 1