ANTLR test program hangs -



ANTLR test program hangs -

i downloaded latest version of antlr (antlrworks 1.4.2 antlr 3.3).

i started antlrworks ui, , entered sample expression evaluator grammar. next generated code antlrworks ui. next selected debug menu alternative generate input file , __test___.java

all fine till now, however, when run __test___ command line, antlr hangs. set system.out's in java code, , seems programme hangs in next line __test___.java

exprparser g = new exprparser(tokens, 49100, null);

i tried printing token stream, not print anything.

does have clue might going wrong? tried multiple grammars, same result.

i running 64 bit ubuntu, openjdk.

the debugger creates socket , waits connection made within antlrworks. can run auto generated __test__.java class within antlrworks. if want create test-class command line, utilize next class:

class="lang-java prettyprint-override">import org.antlr.runtime.*; public class main { public static void main(string[] args) throws exception { exprlexer lexer = new exprlexer(new antlrstringstream("4 + 5 * 6\n")); exprparser parser = new exprparser(new commontokenstream(lexer)); parser.prog(); } } class="lang-none prettyprint-override">bart@hades:~/programming/antlr/demos/expr$ java -cp antlr-3.3.jar org.antlr.tool expr.g bart@hades:~/programming/antlr/demos/expr$ javac -cp antlr-3.3.jar *.java bart@hades:~/programming/antlr/demos/expr$ java -cp .:antlr-3.3.jar main 34

antlr

Comments

Post a Comment

Popular posts from this blog

iphone - Dismissing a UIAlertView -

iphone - Dismissing a UIAlertView - i set in app purchase app, , when user taps button, purchase started. basically, tap button, , depending on speed on net connection, waiting 10 seconds until new alert view comes asking if purchase product. user tap button multiple times since nil came up, , multiple purchase alert views come up. additionally, maybe seen user app bug. in end, problem. i want alert view come spinning wheel says "loading..." when users taps purchase button. problem is, how dismiss when new alert view comes asking user if want purchase product? if ([uialertview alloc] says: @"whatever apple's alert view says") { //dismiss "loading..." alert view here } i uncertainty work, input appreciated. thanks! you need have access alertview. can this. create alertview instance var in app delegate , when want show loading initialize instance var assign property , when want dismiss phone call [alertviewinstance d...
Read more

c# - Can ProtoBuf-Net deserialize to a flat class? -

c# - Can ProtoBuf-Net deserialize to a flat class? - protobuf-net uses nested protobuf constructs back upwards inheritance. however, can made force properties flat target class has same properties inherited "serialized" version? see test illustration below. needless result of flat namespace null both properties. possible solution: re-create info flat.b first on property property basis. note: not prefered option. using system; namespace hierarchy { using protobuf; [protocontract] public class { [protomember(1)] public string prop1 { get; set; } } [protocontract] public class b : { public b() { } [protomember(1)] public string prop2 { get; set; } public override string tostring() { homecoming "prop1=" + prop1 + ", prop2=" + prop2; } } } namespace flat { using protobuf; [protocontract] p...
Read more

javascript - Change element in each JQuery tab to dynamically generated colors -

javascript - Change element in each JQuery tab to dynamically generated colors - i'm using jquery ui tabs widget , have button add together additional tabs. i'm tying each tab markers on map coordinating randomly generated color using function gen_color() { homecoming '#'+(math.random()*0xffffff<<0).tostring(16); } so each tab has color corresponds number of markers of same color on map. i'm trying add together 15x15 block of color within tab's tab left of it's label. right i'm using tabtemplate alternative , trying alter when new tab added: $tabs = $("#tabs").tabs({ tabtemplate: "<li><span class='ui-icon-color' style='background-color:#000000;'></span><a href='#{href}'>#{label}</a> <span class='ui-icon ui-icon-close'>remove tab</span></li>", selected: 0, add: funct...
Read more