Unknown what?

[grunwald at uiucdcsb.UUCP]

what a crock. "most compilers spit out cryptic messages" -- mainly because
people are lazy about developing proper parsers.
	When using a C compiler on a PC/AT w/XENIX, it spits out what it thinks
is missing. In a LALR language (e.g. C), you know what the expected followset
is supposed to be -- It would be possible to say what you expect to see at this
point (although that might be a little too much text).
	If PCC would use be extended to use the Graham-Rhodes error recovery
to try and be a little more graceful about compiling, like the pascal (pc)
compiler does, I for one would be a happier grub.