- System.err.println("parsing " + s[0]);
- Tree<String> res = new CharParser(MetaGrammar.newInstance()).parse(new FileInputStream(s[0])).expand1();
+ InputStream metaGrammarStream =
+ s[0] == null
+ ? RegressionTests.class.getClassLoader().getResourceAsStream("edu/berkeley/sbp/meta/meta.g")
+ : new FileInputStream(s[0]);
+ Tree<String> res = new CharParser(MetaGrammar.newInstance()).parse(metaGrammarStream).expand1();