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#compdef -value-,PROMPT,-default- -value-,PROMPT2,-default- -value-,PROMPT3,-default- -value-,PROMPT4,-default- -value-,RPROMPT,-default- -value-,RPROMPT2,-default- -value-,PS1,-default- -value-,PS2,-default- -value-,PS3,-default- -value-,PS4,-default- -value-,RPS1,-default- -value-,RPS2,-default- -value-,SPROMPT,-default-

local -a specs
local expl bs

if [[ -z $compstate[quote] ]]; then
  bs='\'
fi

if [[ $PREFIX == *%D$bs\{[^($bs\})]# ]]; then
  _date_formats zsh
elif [[ $PREFIX == *%(-|)<-># ]]; then
  specs=(
    'm:hostname up to first .'
    '_:status of parser'
    'd:current working directory'
    '/:current working directory'
    '~:current working directory, with ~ replacement'
    'N:name of current script or shell function'
    'x:name of file containing code being executed'
    'c:deprecated'
    '.:deprecated'
    'C:deprecated'
    'F:start using fg color'
    'K:start using bg color'
    'G:counts as extra character inside %{...%}'
  )
  if [[ $PREFIX == *% ]]; then
    if [[ $service == -value-,SPROMPT,* ]]; then
      specs+=(
      'r:suggested correction'
      'R:corrected string'
      )
    fi
    specs+=(
    '%:A %'
    '):A )'
    'l:current line (tty) with /dev/tty stripped'
    'M:full hostname'
    'n:username'
    'y:current line (tty)'
    '#:a # when root, % otherwise'
    '?:return status of last command'
    'h:current history event number'
    '!:current history event number'
    'i:current line number'
    'I:current source line number'
    'j:number of jobs'
    'L:$SHLVL'
    'D:date in yy-mm-dd format'
    'T:current time of day, 24-hour format'
    't:current time of day, 12-hour am/pm format'
    '@:current time of day, 12-hour am/pm format'
    '*:current time of day, 24-hour format with seconds'
    'w:the date in day-dd format'
    'W:the date in mm/dd/yy format'
    'D{:format string like strftime'
    'B:start bold'
    'b:stop bold'
    'E:clear to end of line'
    'U:start underline'
    'u:stop underline'
    'S:start standout'
    's:stop standout'
    'f:reset fg color'
    'k:reset bg color'
    '{:start literal escape sequence'
    '}:stop literal escape sequence'
    'v:value from $psvar array'
    '(:ternary expression %(x.true-string.false-string)'
    '<<:truncation from left %len<string<'
    '>>:truncation from right %len>string>'
    '[]:truncation from who knows where'
    )
  fi
  compset -P "*"
  _describe -t prompt-format-specifier 'prompt format specifier' specs -S ''
  _message -e prompt-format-specifier number
elif [[ $PREFIX == *%$bs\((-|)<-># ]]; then
  specs=(
    '!:running with privileges'
    '#:effective uid'
    '?:exit status'
    '_:at least n shell constructs started'
    'C:at least n path elements'
    '/:at least n path elements'
    '.:at least n path elements'
    'c:at least n path elements'
    '~:at least n path elements'
    'D:month'
    'd:day of month'
    'g:effective gid'
    'j:number of jobs'
    'L:SHLVL'
    'l:number of characters already printed'
    'S:SECONDS parameter at least n'
    'T:current hour'
    't:current minute'
    'v:psvar has at least n elements'
    'V:element n of psvar is set and non-empty'
    'w:day of week (Sunday = 0)'
  )
  compset -P "*"
  _describe -t ternary-prompt-expression 'ternary prompt format test character' specs -S ''
  _message -e ternary-prompt-expression number
elif [[ $PREFIX == *%[FK]$bs\{[0-9a-z]# ]]; then
  specs=(
    black
    red
    green
    yellow
    blue
    magenta
    cyan
    white
    default
  )
  compset -P "*{"
  _describe -t ansi-color-name 'ansi color' specs -S $bs\}
  if compset -P "<->"; then
    _wanted ansi-color-number expl 'close brace' compadd -S '' \}
  else
    _message -e ansi-color-number "number between 0 and $(( $terminfo[colors] - 1 ))"
  fi
else
  _default "$@"
  specs=(%)
  if compset -P "*%D"; then
    specs+=(\{)
  else
    compset -P "*"
  fi
  _describe -t prompt-format-specifier 'prompt format specifier' specs -S ''
fi