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>t004lexer</title> 6 7 <!-- ANTLR includes --> 8 <script type="text/javascript" src="../../lib/antlr3-all.js"></script> 9 <script type="text/javascript" src="t004lexer.js"></script> 10 11 <!-- JsUnit include --> 12 <script type="text/javascript" src="../jsunit/app/jsUnitCore.js"></script> 13 14 <!-- Test Code --> 15 <script type="text/javascript"> 16 function TLexer() { 17 TLexer.superclass.constructor.apply(this, arguments); 18 } 19 org.antlr.lang.extend(TLexer, t004lexer, { 20 reportError: function(re) { 21 /* don't recover, just crash */ 22 throw re; 23 } 24 }); 25 26 function testValid() { 27 var stream = new org.antlr.runtime.ANTLRStringStream("ffofoofooo"), 28 lexer = new TLexer(stream), 29 token; 30 31 token = lexer.nextToken(); 32 assertEquals(token.getType(), lexer.FOO); 33 assertEquals(token.getStartIndex(), 0); 34 assertEquals(token.getStopIndex(), 0); 35 assertEquals(token.getText(), "f"); 36 37 token = lexer.nextToken(); 38 assertEquals(token.getType(), lexer.FOO); 39 assertEquals(token.getStartIndex(), 1); 40 assertEquals(token.getStopIndex(), 2); 41 assertEquals(token.getText(), 'fo'); 42 43 token = lexer.nextToken(); 44 assertEquals(token.getType(), lexer.FOO); 45 assertEquals(token.getStartIndex(), 3); 46 assertEquals(token.getStopIndex(), 5); 47 assertEquals(token.getText(), 'foo'); 48 49 token = lexer.nextToken(); 50 assertEquals(token.getType(), lexer.FOO); 51 assertEquals(token.getStartIndex(), 6); 52 assertEquals(token.getStopIndex(), 9); 53 assertEquals(token.getText(), 'fooo'); 54 55 token = lexer.nextToken(); 56 assertEquals(token.getType(), lexer.EOF); 57 } 58 59 function testMalformedInput() { 60 var stream = new org.antlr.runtime.ANTLRStringStream('2'), 61 lexer = new TLexer(stream), 62 token; 63 64 try { 65 token = lexer.nextToken(); 66 fail("nextToken should have thrown error on invalid input"); 67 } catch (e) { 68 assertEquals(e.expecting, 'f'); 69 assertEquals(e.getUnexpectedType(), '2'); 70 } 71 } 72 </script> 73 74 </head> 75 <body> 76 <h1>t004lexer</h1> 77 </body> 78 </html> 79
