# File lib/obo_parser.rb, line 174
def parse_obo_file(input)
  @input = input
  raise(OboParser::ParseError, "Nothing passed to parse!") if !@input || @input.size == 0

  builder = OboParser::OboParserBuilder.new
  lexer = OboParser::Lexer.new(@input)
  OboParser::Parser.new(lexer, builder).parse_file
  return builder.obo_file  
end