Check @field{} usage. (Bug 206).

ChangeLog

 2002-01-01  Per Cederqvist  <ceder@moria>
+	
+	Check @field{} usage.  (Bug 206).
+	* doc/checkargs.py (defined_fields): New variable.
+	(undefined_fields): New variable.
+	(prot_a_struct.add_field): Handle defined_fields and
+	undefined_fields.
+	(prot_a_bitstring.add_field): Ditto.
+	(lexer.toplevel_bye): Check for undefined fields.
+	(lexer.toplevel_field): New method.
+	* doc/Makefile.am (check): Removed a fixed FIXME comment.
+	* doc/Protocol-A.texi (Future changes): Don't use @field{} when
+	talking about stuff that might be a field some day in the future.
 
 	Check @priv{} usage, and that all implemented Priv-Bits are
 	documented, and vice versa.  (Bug 207).