RulesetGroupFactory.java 文件源码

private static RulesetGroup parseStream(RulesetGroup rulesetGroup, InputStream is) 
    throws IOException {
CharStream input = CharStreams.fromStream( is );
NominalLexer nominalLexer = new NominalLexer( input );
CommonTokenStream tokens = new CommonTokenStream( nominalLexer );
NominalParser nominalParser = new NominalParser( tokens );
ParseTree parseTree = nominalParser.file();

NominalVisitor nominalVisitor = 
    new NominalVisitorImplementation( rulesetGroup );
nominalVisitor.visit( parseTree );

addDummyRulesets( rulesetGroup );

return rulesetGroup;
   }