1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 2 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> 3 <head> 4 <meta http-equiv="content-type" content="text/html;charset=utf-8" /> 5 <title>t015calc</title> 6 7 <!-- ANTLR includes --> 8 <script type="text/javascript" src="../../lib/antlr3-all.js"></script> 9 <script type="text/javascript" src="t015calcLexer.js"></script> 10 <script type="text/javascript" src="t015calcParser.js"></script> 11 12 13 <!-- JsUnit include --> 14 <script type="text/javascript" src="../jsunit/app/jsUnitCore.js"></script> 15 16 <!-- Test Code --> 17 <script type="text/javascript"> 18 function _evaluate(expr, expected, errors) { 19 var cstream = new org.antlr.runtime.ANTLRStringStream(expr), 20 lexer = new t015calcLexer(cstream), 21 tstream = new org.antlr.runtime.CommonTokenStream(lexer), 22 parser = new t015calcParser(tstream); 23 24 var result = parser.evaluate(); 25 assertEquals(result, expected); 26 if (!errors) { 27 assertUndefined(parser.reportedErrors); 28 } else { 29 assertEquals(parser.reportedErrors.length, errors.length); 30 } 31 } 32 33 function testValid01() { 34 _evaluate("1 + 2", 3); 35 } 36 37 38 function testValid02() { 39 _evaluate("1 + 2 * 3", 7); 40 } 41 42 43 function testValid03() { 44 _evaluate("10 / 2", 5); 45 } 46 47 48 function testValid04() { 49 _evaluate("6 + 2*(3+1) - 4", 10); 50 } 51 52 53 function testMalformedInput() { 54 _evaluate("6 - (2*1", 4, ["mismatched token at pos 8"]); 55 } 56 57 // FIXME: most parse errors result in TypeErrors in action code, because 58 // rules return None, which is then added/multiplied... to integers. 59 // evaluate("6 - foo 2", 4, ["some error"]) 60 </script> 61 62 </head> 63 <body> 64 <h1>t015calc</h1> 65 </body> 66 </html> 67
