private void addNonTerminal(String EBNF) {
String p = "<([\\w-]+)>[\\s]*::=(" + "([\\s]*(<[\\w-]+>|(\"[^\"]*\")|[|\\[\\]{}])" + ")+)";
Matcher m = Pattern.compile(p).matcher(EBNF);
m.find();
NonTerminal nt = new NonTerminal(m.group(1));
List<? extends EBNFBranch> branches = EBNFBranch.getBranches(m.group(2));
assert (branches.size() > 0);
if (nonTerminals.size() == 0) {
startSymbol = nt;
}
nonTerminals.put(nt, branches);
}
