[cdt-dev] Attempting to make a Cosmic C Language Extension

["Peter Watkins" <peter.watkins@xxxxxxxxxxxxx>]

After reading http://www.eclipse.org/forums/index.php/mv/msg/162043/512293/#msg_512293,
I'm trying to make a new language extension for the Cosmic dialect of C.
Mostly the problem is "@" keywords such as @far. I've looked
at bug #237028, and POPCPPScannerExtensionConfiguration.java. I also went
off Mike Kucera's message to this group, "Re: [cdt-dev] How to extend
the C99 / GCC LR Parser." on 11-Jul-2011 in which he suggests using
an ILanguage extension point and providing my own configuration that implements
IScannerExtensionConfiguration and defines supportAtSignInIdentifiers().

I've made the language plugin consisting
of Activator.java, CosmicCLanguage.Java, and CosmicCScannerExstensionConfiguration.java.
I can choose my new language under Language Mappings in the CDT. However
the parser still trips up over @far. Here's my parser log (I've deleted
some lines to make it smaller):

===== BEGIN parser.log =====
Project:        
      Foo
File:          
       file:/C:/Documents%20and%20Settings/watkinsp/runtime-EclipseApplication/Foo/foo.c
Language:        
     Cosmic C
Index Version:      
  132.0
Build Configuration:   Debug
Context:        
      none
Versions in Index:     1
   C: {}; 0 macros, 0 includes,
1 names;

Include Search Path (option -I):
   c:/mingw/lib/gcc/mingw32/4.7.2/include
   c:/mingw/include
   c:/mingw/lib/gcc/mingw32/4.7.2/include-fixed

Macro definitions (option -D):
   i386=1
   WIN32=1
   WINNT=1
   .
   .
   .

Macro definitions (from language + headers
in index):
   __builtin_constant_p(exp)=0
   __builtin_offsetof(T,m)=((size_t)
&((T *)0)->m)
   __builtin_types_compatible_p(x,y)=__builtin_types_compatible_p(sizeof(x),sizeof(y))
   __builtin_va_arg(ap,type)=*(typeof(type)
*)ap
   __CDT_PARSER__=1
   __complex__=_Complex
   __COUNTER__=0
   __DATE__="Mar 21 2013"
   __extension__=
   __FILE__="file"
   __imag__=(int)
   __LINE__=1
   __null=(void *)0
   __offsetof__(x)=(x)
   __real__=(int)
   __stdcall=
   __STDC_VERSION__=199901L
   __thread=
   __TIME__="14:46:09"

Scanner problems:
   Bad character sequence
encountered: @ in file: C:\Documents and Settings\watkinsp\runtime-EclipseApplication\Foo\foo.c:13

Parser problems:
   Syntax error in file: C:\Documents
and Settings\watkinsp\runtime-EclipseApplication\Foo\foo.c:13

Written on Thu Mar 21 14:46:09 PDT 2013
===== END parser.log =====


Here's my foo.c:
===== BEGIN foo.c =====
void main(int argc, char **argv) {

}

void @far bar(int baz) {
        baz
= 2;
}
===== END foo.c =====


Notice the @far on bar() (line 13).
Also notice "Cosmic C" in my parser log for "Language: ".
Here are the source files for my plugin:

===== BEGIN CosmicCLanguage.java =====
package com.msei.plugin.cdtextensions;

import org.eclipse.cdt.core.dom.ast.gnu.c.GCCLanguage;
import org.eclipse.cdt.core.dom.parser.IScannerExtensionConfiguration;

/**
 * @author Peter Watkins
 *
 */
public class CosmicCLanguage extends
GCCLanguage {
        protected
static final CosmicCScannerExtensionConfiguration
        COSMIC_C_SCANNER_EXTENSION
= new CosmicCScannerExtensionConfiguration();

        @Override
        public
String getId() {
         
      return "com.msei.plugin.cdtextensions.cosmicc";

        }
        
        @Override
        protected
IScannerExtensionConfiguration getScannerExtensionConfiguration() {
         
      return COSMIC_C_SCANNER_EXTENSION;
        }
}
===== END CosmicCLanguage.java =====

===== BEGIN CosmicCScannerExtensionConfiguration.java
=====
package com.msei.plugin.cdtextensions;

import org.eclipse.cdt.core.dom.parser.c.GCCScannerExtensionConfiguration;

public class CosmicCScannerExtensionConfiguration
extends
         
      GCCScannerExtensionConfiguration {
        private
static CosmicCScannerExtensionConfiguration sInstance = new CosmicCScannerExtensionConfiguration();
        
        public
static CosmicCScannerExtensionConfiguration getInstance() {
         
      return sInstance;
        }

        public
CosmicCScannerExtensionConfiguration() {
         
      addMacro("@far", "");
        }

        public
CosmicCScannerExtensionConfiguration(int version) {
         
      super(version);
         
      // TODO Auto-generated constructor stub
        }
        
        @Override
        public
boolean supportAtSignInIdentifiers() {
         
      return true;
        }
}
===== END CosmicCScannerExtensionConfiguration.java
=====

===== BEGIN Activator.java =====
package com.msei.plugin.cdtextensions;

import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;

public class Activator implements BundleActivator
{

        private
static BundleContext context;

        static
BundleContext getContext() {
         
      return context;
        }

        /*
         *
(non-Javadoc)
         *
@see org.osgi.framework.BundleActivator#start(org.osgi.framework.BundleContext)
         */
        public
void start(BundleContext bundleContext) throws Exception {
         
      Activator.context = bundleContext;
        }

        /*
         *
(non-Javadoc)
         *
@see org.osgi.framework.BundleActivator#stop(org.osgi.framework.BundleContext)
         */
        public
void stop(BundleContext bundleContext) throws Exception {
         
      Activator.context = null;
        }
}
===== END Activator.java =====


Does anything obvious stand out to you?
I'm I even going in the right direction? I'm not entirely sure what I'm
doing in the first place :). I'm just trying to adapt what I've already
seen. 

Thanks,

Peter