Union testcasegrammar = ((MetaGrammar)new MetaGrammar("ts").walk(res)).done("ts");
if (testcasegrammar==null) return;
CharToken.Stream cs = new CharToken.Stream(new InputStreamReader(new FileInputStream(s[2])), "parsing " + s[2] + " using " + s[1]);
Union testcasegrammar = ((MetaGrammar)new MetaGrammar("ts").walk(res)).done("ts");
if (testcasegrammar==null) return;
CharToken.Stream cs = new CharToken.Stream(new InputStreamReader(new FileInputStream(s[2])), "parsing " + s[2] + " using " + s[1]);