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c编译器的lex

The files in this directory contain the ANSI C grammar from the April 30, 1985
draft of the proposed standard. This copy also incorporates all bug fixes I
have seen since the last two postings. With a little work this grammar can
be made to parse the C that most of us know and love (sort of).

There is one bug fix to the grammar that is in this posting. On line 295
of gram.y it previously read declaration_specifiers instead of
type_specifier_list as it does now. I believe the folks at the ANSI committee
made a mistake since if you replace the line with what the original read
you will end up with 16 shift/reduce errors and 2 reduce/reduce errors
(the good ones). As it is, it only has 1 shift/reduce error that occurs
on the if/else construct. YACC creates the correct parser and I don't want
to ugly my grammar up.

Anyway, all cumquats unite and generate this sucker. Then just sit and play
with it. Remember, the grammar accepts things like

	"Hello, world"++;
	--1.23456;
	*'a'

but this is not a bug, but simply a shuffling of the checking into the
semantic analysis. If you want to hack it up to do lvalue and rvalue
checking, I'm sure the ANSI committee would be glad to have your changes.
Don't send'em to me though. I don't want'em. Wear this in good health.

Jeff Lee
gatech!jeff	jeff@gatech	[e-mail]