Hi,
First, thanks for the encouragement. Knowing there are active users out there
makes all the difference.
I've now taken the first example from "the definitive ANTLR reference" and
tried to get it to work, first using the Visual Studio Extensions and
templates, and then also manually running the ANTLR3.exe file at the command
line, just to verify that my problems are in the generated code and are not
errors generated during the generation of code (since the Visual Studio
Extensions and associated instructions seem to produce projects that both
generate code and then build it).
So my grammar is this simple:
grammar Lexer1;
options {
language=CSharp3;
}
/** Match things like "call foo;" */
r : 'call' ID ';' {System.out.println("invoke "+$ID.text);} ;
ID: 'a'..'z'+ ;
WS: (' '|'\n'|'\r')+ {$channel=HIDDEN;} ; // ignore whitespace
When I compile the code generated by ANTLR3, I get these errors:
K:\Plantronics\Development
Sandbox\AntlrTest\AntlrTest\obj\x86\Debug\Lexer1Parser.cs(28,2): warning
CS3021: 'Lexer1Parser' does not need a CLSCompliant attribute because the
assembly does not have a CLSCompliant attribute
K:\Plantronics\Development
Sandbox\AntlrTest\AntlrTest\obj\x86\Debug\Lexer1Parser.cs(86,11): error CS1041:
Identifier expected; 'out' is a keyword
K:\Plantronics\Development
Sandbox\AntlrTest\AntlrTest\obj\x86\Debug\Lexer1Parser.cs(86,11): error CS1525:
Invalid expression term 'out'
K:\Plantronics\Development
Sandbox\AntlrTest\AntlrTest\obj\x86\Debug\Lexer1Lexer.cs(28,2): warning CS3021:
'Lexer1Lexer' does not need a CLSCompliant attribute because the assembly does
not have a CLSCompliant attribute
K:\Plantronics\Development
Sandbox\AntlrTest\AntlrTest\obj\x86\Debug\Lexer1Lexer.cs(276,13): error CS0103:
The name 'HIDDEN' does not exist in the current context
The errors regarding "System.out" make sense, that seems like a call to a Java
function that does not exist in C#. However the error with HIDDEN is confusing
to me, and it is the result of sub a basic construct ({$channel=HIDDEN:};). I
can't imagine what I am doing wrong to cause this, and since it is the first
example pulled out of the book, you would think it would work!
Can someone help me here? I'm gaining confidence, but I'm having trouble even
walking before I can run!
Oh, also: What are the files Antlr3.Targets.CSharp2.dll and
Antlr3.Targets.CSharp3.dll for?
- Andy
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Sam Harwell
Sent: Wednesday, October 19, 2011 7:59 AM
To: 'pragmaik'; [email protected]
Subject: Re: [antlr-interest] How viable is the Csharp3 target?
Hi Andy & Maik,
I agree that the C# target documentation is lacking in many ways. I try to keep
enough documentation at the following page to get you started on the right path:
http://www.antlr.org/wiki/display/ANTLR3/Antlr3CSharpReleases
I've been using the CSharp3 target in a commercial product for 3 years now.
At this point, most of the remaining the issues I have with it are
basic/technical limitations of ANTLR 3 that will hopefully be resolved in later
versions.
Sam
-----Original Message-----
From: [email protected]<mailto:[email protected]>
[mailto:[email protected]]<mailto:[mailto:[email protected]]>
On Behalf Of pragmaik
Sent: Wednesday, October 19, 2011 9:36 AM
To: [email protected]<mailto:[email protected]>
Subject: Re: [antlr-interest] How viable is the Csharp3 target?
Hi Andy!
I am using ANTLR's C# target for a couple of weeks now to create a domain
specific language that is a subset of the C programming language.
My experience is similar to yours, but I can assure you that the C# target
works and that it is actively maintained. It differs from the Java target in a
few places, but it works.
The biggest problem is finding documentation. I've both of Terence Parr's books
on my desk and the folks on this mailing list are very friendly and competent.
Cheers,
Maik
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