#!/usr/bin/env ruby
#-*-ruby-*-

RB_DEFINE_RE = 'rb_define_(const|module|class|class_under|method)'
RUBY_IDENTIFER_RE = '[A-Za-z0-9_]+'

RB_DEFINE_SYMBOL_RE =
  %r'#{RB_DEFINE_RE}\([^,]+,\s+"(#{RUBY_IDENTIFER_RE})"'

while gets
  puts($2) if $_ =~ RB_DEFINE_SYMBOL_RE
end
