#compdef ri

local curcontext="$curcontext" state line ret=1
typeset -A opt_args

_arguments \
  '(- *)'{-h,--help}'[print help information and exit]' \
  '(- *)'{-v,--version}'[display the version of ri]' \
  '(-c --classes)'{-c,--classes}'[display the names of classes and modules we know about]' \
  '(-d --doc-dir)'{-d,--doc-dir}'[directory to search for documentation]:ri doc directory:_files -/' \
  '(-f --format)'{-f,--format}'[format to use when displaying output]:output format:(ansi bs html plain simple)' \
  '(-l --list-names)'{-l,--list-names}'[list all the names known to RDoc]' \
  '(-T --no-pager)'{-T,--no-pager}'[send output directly to stdout]' \
  '(-w --width)'{-w,--width}'[set the width of the output]:output width:' \
  '*:ri name:->ri-name' && ret=0

if [[ "$state" = ri-name ]]; then
    local ri_names expl

    ri_names=( ${(f)"$( _call_program ri-names "$words[1]" ${(v)opt_args[(I)(-d|--doc-dir)]:+-d "${(v)opt_args[(I)(-d|--doc-dir)]}"} -l -T )"} )
    _wanted ri-names expl "ri name" compadd -a ri_names && ret=0
fi

return $ret