/** Constructor. */
public DOTParser(java.io.Reader stream) {
jj_input_stream = new SimpleCharStream(stream, 1, 1);
token_source = new DOTParserTokenManager(jj_input_stream);
token = new Token();
jj_ntk = -1;
jj_gen = 0;
for (int i = 0; i < 22; i++)
jj_la1[i] = -1;
for (int i = 0; i < jj_2_rtns.length; i++)