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#compdef ruby

# completion function for Ruby.
# http://www.ruby-lang.org/

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

_arguments -C -s \
  '--version[print version]' \
  '-c[syntax check]' \
  '-w[verbose mode without printing version message at the beginning]' \
  '(-d)--debug[debug mode]' \
  '(--debug)-d[debug mode]' \
  '(-h)--help[print help message]' \
  '(--help)-h[print help message]' \
  '-l[automatic line-ending processing]' \
  '-p[loop and print]' \
  '-n[loop]' \
  '-a[auto-split mode]' \
  '-s[switch parsing]' \
  '-0-[input record separator]:input record separator in octal:' \
  '-K-[specifies KANJI (Japanese) encoding]:KANJI encoding:((e\:EUC-JP s\:Shift_JIS u\:UTF-8 N\:None))' \
  '-F-[input field separator]:input field separator:' \
  '-i-[in-place-edit mode]:suffix for in-place-edit mode:(.bak)' \
  '-I+[library directory]:library directory:_files -/' \
  '-r+[require library]:library name:->library' \
  '-S[search ruby script in PATH]' \
  '(--verbose)-v[verbose mode]' \
  '(-v)--verbose[verbose mode]' \
  '-x-[embedded script]:directory:_files -/' \
  '-C+[chdir]:directory:_files -/' \
  '(--yydebug)-y[compiler debug mode]' \
  '(-y)--yydebug[compiler debug mode]' \
  '--copyright[copyright notice]' \
  '-T-[taint check]:taint level:' \
  '(1)-e+[ruby command]:ruby command:' \
  ':script file:_files' \
  ':script argument:_files' && return 0

case $state in
  library)
    dirs=($(_call_program directories $words[1] -e 'print\ \$:.join\(\"\\n\"\)'))
    _wanted directories expl library \
      _path_files -W dirs
  ;;
esac