[antlr-interest] Antlr 2.7.2a2 and NetBeans

[Terence Parr]

Hi Sinan,

I have noted your request in my list of pre 2.7.2 final things to do...

Ter

On Wednesday, March 13, 2002, at 09:47  AM, Sinan wrote:

>
>
> I am currently trying to revamp the antlr module in netbeans.
>
> What they have done esentially is take antlr.g and modify it to
> suit their prupose. Looking thru it it appears that what is really
> needed is a simple grammar inheritance. So here is a modest proposal
> for a simple way to do that.
>
> The following code snippet ( other than the ignored bodies for
> a couple of methods) shgould be the complete .g file for
> antlreditor.g
>
> /// ---begin------------
> header {
> /*
>  * ............bunch of netbeans comments
>  */
> package org.netbeans.modules.antlr.editor.g;
> }
>
>
> class ANTLREditorParser extends ANTLRParser;
>
>
> {
> 	SecondaryFileHandler behavior;
>
> 	public void reportError(String s) {
> 		behaviour.reportError(s);
> 	}
> 	
> 	public ANTLRParser(
> 		TokenBuffer tokenBuf,
> 		SecondaryFileHandler behavior_
> 			) {
> 			super(tokenBuf, 1);
> 			tokenNames = _tokenNames;
> 			behavior = behavior_;
> 	}
>
> 	public static void dump (PrintStream out, SecondaryFileHandler
> behavior)
> 	{
> 		// some code here...
> 	}
>
> 	public static void scan (String filename)
> 	{
> 		// some more code here.....
> 	}
>
> 	public static void main (String[] args)
> 	{
> 	// some some more more code here......
> 	}
> }
> 	
> // ---end---------
>
> However looking thru antlr.g in 2.7.2a2 	
>
>
> The following lines cause a little grief ( who wrote this stuff
> anyway?).
>
> Specifically the problems re that the messages should be directed to the
> editor infrastructure in netbeans. I can do that by overriding
> reportError
> method, and I can modify the lines that talks to antlrTool.error(),
> antlrTool.warning(). However. If theselines were changed to call
>
> error() , and warning() , then I can override them without any
> modification
> to the antlr. g...
>
> Ric, Ter, any comments???
>
> Sinan
>
>
> // ----------problematic lines------------
> //				reportError("line "+ex.line+": JAVADOC comments may only prefix
> rules and grammars");
> 				antlrTool.error("JAVADOC comments may only prefix rules and
> grammars", getFilename(), ex.getLine(), ex.getColumn());
> ---------
> 				antlrTool.error(ex.getMessage(), getFilename(), ex.getLine(),
> ex.getColumn());
> //				reportError("rule classDef trapped:\n"+ex.toString());
> 			antlrTool.error(ex.getMessage(), getFilename(), ex.getLine(),
> ex.getColumn());
> //			reportError("rule classDef trapped:\n"+ex.toString());
> ----------
> 			antlrTool.warning("did you forget to terminate previous rule?",
> getFilename(), label.getLine(), label.getColumn());
>
>
> ----------	
> 		antlrTool.error("Malformed range line ", getFilename(), c1.getLine(),
> c1.getColumn());
> 		
> ----------
>  			antlrTool.warning("use 'class X extends Parser'", getFilename(),
> idTok.getLine(), idTok.getColumn());
> //			System.out.println("warning: line " +
> //				idTok.getLine() + ": use 'class X extends Parser'");
>
>
>
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>
--
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Creator, ANTLR Parser Generator: http://www.antlr.org


 

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