[antlr-interest] Error recovery contortion

[Terence Parr]

On Dec 7, 2004, at 11:34 AM, Paul J. Lucas wrote:
>> Why can't you add a catch to the equiv of another()?
>
> 	Because "another" in my case is "expression" that has a zillion
> 	subrules (addExpr, mulExpr, etc), and I'd have to add my own
> 	"catch" to *every* *single* *one* of those and end up having to
> 	do it to the whole grammar.  This kind of defeats the point of
> 	having defaultErrorHandler=true.

Agreed.  As I said though, adding exception handlers to every routine 
would work and while laborious, is precise. ;)  However, your solution 
is better.  Let's make the code spit out for default handlers 
configurable :)

> 	The goal here is to try to mold ANTLR's default error recovery
> 	mechanism to do what I want so in 99% of my grammar I don't
> 	have to do anything special.  Only in those places where I want
> 	to do specific recovery do I want to intervene.
>
> 	Get it?

Now I do...sorry for being slow on this one.
Ter
--
CS Professor & Grad Director, University of San Francisco
Creator, ANTLR Parser Generator, http://www.antlr.org
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