antlr3

I have upgraded from Antlr 3 to Antlr 4. I was using this code to catch exceptions using this code. But this is not working for Antlr 4. partial class XParser { public override void ReportError(RecognitionException e) { base.ReportError(e); Console.WriteLine("Error in Parser at line " + ":" + e.OffendingToken.Column + e.OffendingToken.Line + e.Message); } } This is the error that appears 'Parser.ReportError(Antlr4.Runtime.RecognitionException)': no suitable method found to override In Antlr 4 what is the expected way of accumulating errors that occurs in the input stream. I was unable to find

I'm building a parser in antlr which compiles to a working java target. When I retarget for c#2 it produces a parser in which all of the parse methods are private but marked with a [GrammarRule("rulename")] attribute. What is the approved means to actually invoke the parser? I am using ANTLR 3.3 Nov 30, 2010 12:45:30 Thanks, Andy Make at least one parser rule "public" like this: grammar T; options { language=CSharp2; } public parse : privateRule+ EOF ; privateRule : Token+ ; // ... You can then call parse() on the generated parser. protected and private (the default if nothing is specified)

So I've been making a grammar in Eclipse with ANTLR v3.4 and I've made one that works and I want to make sure when I edit it everything still works. I can go into the interpretter everytime but that seems like a huge waste of time. Questions: I've read about gunit but the link it gives to download gUnit: ( http://antlr.org/hudson/job/gUnit/org.antlr $gunit/lastSuccessfulBuild/ ) doesn't work. How can I get gUnit. What is the best way to test grammars? Is it actually gUnit or should I just do java tests like jUnit tests? cb4 I recently completed two ANTLR3 assignments (I'm working on my Master

Here is a simple rule: NAME : 'name1' | 'name2' | 'name3'; Is it possible to provide alternatives for such rule dynamically using an array that contains strings? Yes, dynamic tokens match IDENTIFIER rule In that case, simply do a check after the Id has matched completely to see if the text the Id matched is in a predefined collection. If it is in the collection (a Set in my example) change the type of the token. A small demo: grammar T; @lexer::members { private java.util.Set<String> special; public TLexer(ANTLRStringStream input, java.util.Set<String> special) { super(input); this.special =

I'm still on my quest for a really simple language and I know now that there are none. So I'm writing one myself using ANTLR3. I found a really great example in this answer : Exp.g: grammar Exp; eval returns [double value] : exp=additionExp {$value = $exp.value;} ; additionExp returns [double value] : m1=multiplyExp {$value = $m1.value;} ( '+' m2=multiplyExp {$value += $m2.value;} | '-' m2=multiplyExp {$value -= $m2.value;} )* ; multiplyExp returns [double value] : a1=atomExp {$value = $a1.value;} ( '*' a2=atomExp {$value *= $a2.value;} | '/' a2=atomExp {$value /= $a2.value;} )* ; atomExp

I'm having trouble figuring out the antlr3 API so I can generate and use a parse tree in some javascript code. When I open the grammar file using antlrWorks (their IDE), the interpreter is able to show me the parse tree, and it's even correct. I'm having a lot of difficulties tracking down resources on how to get this parse tree in my code using the antlr3 runtime. I've been messing around with the various functions in the runtime and Parser files but to no avail: var input = "(PR=5000)", cstream = new org.antlr.runtime.ANTLRStringStream(input), lexer = new TLexer(cstream), tstream = new org