#compdef ruby -P -value-,RUBY(LIB|OPT|PATH),-default-

# ruby 1.8.2 (2004-12-25) [i686-linux]

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

local -a args opts

args=(
  '(-)1:script file:_files'
  '*::script argument: _normal'
)

opts=(
  '-0-[specify record separator]:input record separator in octal (default \0):'
  '-a[autosplit mode with -n or -p (splits $_ into $F)]'
  '-c[check syntax only]'
  '-C+[cd to directory, before executing your script]:directory:_files -/'
  '(-d --debug)'{-d,--debug}'[set debugging flags (set $DEBUG to true)]'
  "(1)*-e+[one line of script (several -e's allowed, omit program file)]:one line of script:"
  '-F-[split() pattern for autosplit (-a)]:input field separator:'
  '-i-[edit ARGV files in place (make backup if extension supplied)]:suffix for in-place-edit mode:(.bak)'
  '*-I+[specify $LOAD_PATH directory (may be used more than once)]:library directory:_files -/'
  '-K-[specifies KANJI (Japanese) code-set]:KANJI encoding:((e\:EUC-JP s\:Shift_JIS u\:UTF-8 N\:None))'
  "-l[assume 'while gets(); ... end' loop around your script]"
  "(-p)-n[assume 'while gets(); ... end' loop around your script]"
  '(-n)-p[assume loop like -n but print line also like sed]'
  '*-r+[require the library, before executing your script]:library name:->library'
  '-s[enable some switch parsing for switches after script name]'
  '-S[look for the script using PATH environment variable]'
  '-T-[turn on tainting checks]:taint level (default 0):((0\:strings\ from\ streams/environment/ARGV\ are\ tainted 1\:no\ dangerous\ operation\ by\ tainted\ value 2\:process/file\ operations\ prohibited 3\:all\ generated\ objects\ are\ tainted 4\:no\ global\ \(non-tainted\)\ variable\ modification/no\ direct\ output))'
  '(-v --verbose)'{-v,--verbose}'[print version number, then turn on verbose mode]'
  '-w[turn warnings on for your script]'
  '-W-[set warning level]:warning level (default 2):((0\:silent 1\:medium 2\:verbose))'
  '(-y --yydebug)'{-y,--yydebug}'[enable yacc debugging in the parser]'
  '-x-[strip off text before #!ruby line and perhaps cd to directory]:directory:_files -/'
  '(1 * -)--copyright[print the copyright]'
  '(1 * -)'{-h,--help}'[print help message]'
  '(1 * -)--version[print the version]'
)

case "$service" in
  *RUBY(LIB|PATH)*)
    _dir_list && return 0
  ;;
  *RUBYOPT*)
    compset -q
    words=( fake "$words[@]" )
    (( CURRENT++ ))
    _arguments -C -s : "${(@M)opts:#*-[IdvwrK](|[-+])\[*}" && ret=0
  ;;
  ruby)
    _arguments -C -s -S : "$opts[@]" "$args[@]" && ret=0
  ;;
esac

case "$state" in
  library)
    local -a dirs
    local cmd
    if [[ "$service" = *RUBYOPT* ]]; then
      cmd=ruby
    else
      cmd=$words[1]
    fi
    dirs=( $(_call_program directories $cmd -e 'puts\ \$:' 2>/dev/null) ${(s.:.)opt_args[-I]} )
    _wanted libraries expl library _path_files -W dirs && ret=0
  ;;
esac

return ret