[Nickle]Invalid input generates segfault

[Keith Packard]

Around 22 o'clock on Jul 26, Carl Worth wrote:

> I've found that the following input cause a segmentation fault in
> nickle, (1.99.1, 1.99.2, and CVS as of today):

I thought I'd fixed that already.  Obviously not.  I don't think I'll have 
time to fix it today.

> PS. I've found that it is quite easy with interactive nickle to get
> the parser confused after a syntax error, (but not quite so easy to
> unwedge it). For instance:

Hmm.  It should pop out after a semicolon, but it looks like this case 
isn't handled by YACC correctly -- takes two semicolons...

Thanks for the cvs setup; that'll make things easier.

-keith