=begin copyright
    rubylexer - a ruby lexer written in ruby
    Copyright (C) 2004,2005  Caleb Clausen

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
=end
require 'set'


def assert(expr,msg="assertion failed")
  $DEBUG and (expr or raise msg)
end

@@printed=Set.new
def fixme(s)
  @@printed.include?( s) and return
  $DEBUG and STDERR.print "FIXME: #{s}\n"
  @@printed.add s
end