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#autoload

# The main loop of the completion code. This is what is called when 
# completion is attempted from the command line.


# If you want to complete only set or unset options for the unsetopt
# and setopt builtin, un-comment these lines:
#
#   local _set_options _unset_options
#
#   _set_options=(${(k)options[(R)on]})
#   _unset_options=(${(k)options[(R)off]})
#
# This is needed because completion functions may set options locally
# which makes the output of setopt and unsetopt reflect a different
# state than the global one for which you are completing.

setopt localoptions nullglob rcexpandparam extendedglob
unsetopt markdirs globsubst shwordsplit nounset ksharrays

local func funcs ret=1 tmp _compskip format _comp_ignore \
      _completers _completer _completer_num curtag \
      _matchers _matcher _matcher_num _comp_tags \
      context state line opt_args val_args curcontext="$curcontext" \
      _last_nmatches=-1 _last_menu_style _def_menu_style _menu_style sel \
      _saved_exact="${compstate[exact]}" \
      _saved_lastprompt="${compstate[last_prompt]}" \
      _saved_list="${compstate[list]}" \
      _saved_insert="${compstate[insert]}"

typeset -U _lastdescr

_comp_opts=()
_comp_tries=()

[[ -z "$curcontext" ]] && curcontext=:::

# Special completion contexts after `~' and `='.

if compset -P 1 '='; then
  compstate[context]=equal
elif [[ "$PREFIX" != */* && "$PREFIX[1]" = '~' ]]; then
  compset -p 1
  compstate[context]=tilde
fi

# Initial setup.

_setup default
_def_menu_style=( "$_last_menu_style[@]"

# We can't really do that because the current value of $SELECTMIN
# may be the one set by this function.
# There is a similar problem with $ZLS_COLORS in _setup.

#                  ${SELECTMIN+select${SELECTMIN:+\=$SELECTMIN}}

                )
_last_menu_style=()

# Get the names of the completers to use in the positional parameters.

(( $# )) || zstyle -a ":completion:${curcontext}:" completer argv ||
    set _complete

# And now just call the completer functions defined.

_completers=( "$@" )
_completer_num=1

# Call the pre-functions.

funcs=( "$compprefuncs[@]" )
compprefuncs=()
for func in "$funcs[@]"; do
  "$func"
done

for _completer; do

  zstyle -a ":completion:${curcontext/::/:${_completer[2,-1]}-${(M)#_completers[1,_completer_num]:#$_completer}:}:" matcher-list _matchers ||
      _matchers=( '' )

  _matcher_num=1
  for _matcher in "$_matchers[@]"; do
    if "$_completer"; then
      ret=0
      break 2
    fi
    (( _matcher_num++ ))
  done
  (( _completer_num++ ))
done

if [[ -n "$tmp" || $compstate[old_list] = keep ||
      $compstate[nmatches] -gt 1 ]]; then
  [[ _last_nmatches -ge 0 && _last_nmatches -ne $compstate[nmatches] ]] &&
      _menu_style=( "$_last_menu_style[@]" "$_menu_style[@]" )

  if [[ "$compstate[insert]" = "$_saved_insert" ]]; then
    if [[ -n "$_menu_style[(r)(yes|true|1|on)]" ||
          ( -n "$_menu_style[(r)auto*]" &&
            "$compstate[insert]" = automenu ) ]]; then
      compstate[insert]=menu
    elif [[ -n "$_menu_style[(r)auto*]" &&
            "$compstate[insert]" != automenu ]]; then
      compstate[insert]=automenu-unambiguous
    elif [[ -n "$_menu_style[(r)(no|false|0|off)]" ]]; then
      compstate[insert]=unambiguous
    elif [[ -n "$_def_menu_style[(r)(yes|true|1|on)]" ||
          ( -n "$_def_menu_style[(r)auto*]" &&
            "$compstate[insert]" = automenu ) ]]; then
      compstate[insert]=menu
    elif [[ -n "$_def_menu_style[(r)auto*]" &&
            "$compstate[insert]" != automenu ]]; then
      compstate[insert]=automenu-unambiguous
    elif [[ -n "$_def_menu_style[(r)(no|false|0|off)]" ]]; then
      compstate[insert]=unambiguous
    fi
  fi

  _menu_style=( "$_menu_style[@]" "$_def_menu_style[@]" )

  if [[ "$compstate[insert]" = *menu* ]]; then
    if [[ -n "$_menu_style[(r)no-select*]" ]]; then
      unset SELECTMIN
    else
      sel=( "${(@M)_menu_style:#select*}" )

      if (( $# )); then
        local min=9999999 i num

        for i in "$sel[@]"; do
          if [[ "$i" = *\=* ]]; then
  	    num="${i#*\=}"
  	    [[ num -lt 0 ]] && num=0
  	  else
  	    num=0
  	  fi
  	  [[ num -lt min ]] && min="$num"
  
	  (( min )) || break
        done

        zmodload -i zsh/complist
        SELECTMIN="$min"
      fi
    fi
  fi
elif [[ $compstate[nmatches] -eq 0 &&
        $#_lastdescr -ne 0 && $compstate[old_list] != keep ]] &&
     zstyle -s ":completion:${curcontext}:warnings" format format; then

  compstate[list]='list force'
  compstate[insert]=''

  if [[ "$format" = *%d* ]]; then
    local str mesg

    _lastdescr=( "\`${(@)^_lastdescr:#}'" )

    case $#_lastdescr in
    1) str="$_lastdescr[1]";;
    2) str="$_lastdescr[1] or $_lastdescr[2]";;
    *) str="${(j:, :)_lastdescr[1,-2]}, or $_lastdescr[-1]";;
    esac

    zformat -f mesg "$format" "d:$str"
    compadd -UX "$mesg" -n - ''
  else
    _setup warnings
    compadd -UQX "$format" -V warnings - "${(@)_lastdescr:#}"
  fi
fi

# Now call the post-functions.

funcs=( "$comppostfuncs[@]" )
comppostfuncs=()
for func in "$funcs[@]"; do
  "$func"
done

_lastcomp=( "${(@kv)compstate}" )
_lastcomp[completer]="$_completer"
_lastcomp[prefix]="$PREFIX"
_lastcomp[suffix]="$SUFFIX"
_lastcomp[iprefix]="$IPREFIX"
_lastcomp[isuffix]="$ISUFFIX"
_lastcomp[qiprefix]="$QIPREFIX"
_lastcomp[qisuffix]="$QISUFFIX"
_lastcomp[tags]="$_comp_tags"

return ret