- If defined, fatal errors are reported. Defined by default.
- If defined, non-fatal problems are reported. Defined by default.
- If defined, make suggestions on how to fix the problem.
Undefined by default.
- A very cool feature! If defined, the entire trace of the parser
is dumped on standard error; the parser code
is written to the file RD_TRACE.
ERROR (line 10): Untranslatable item encountered: "!"
(Hint: Did you misspell "!" or forget to comment it out?)
ERROR (line 13): Untranslatable item encountered: "<leftpo:"
(Hint: Did you misspell "<leftpo:" or forget to comment it
ERROR (line 13): Unmatched > found.
(Hint: A '>' angle bracket was encountered, which typically
indicates the end of a directive. However no suitable
preceding directive was encountered. Typically this
indicates either a extra '>' in the grammar, or a
problem inside the previous directive.)
ERROR: Rule "factor" is left-recursive.
(Hint: Redesign the grammar so it's not left-recursive. That
will probably mean you need to re-implement repetitions
using the '(s)' notation. For example: "factor(s)".)
Warning: Undefined (sub)rule "variabel" used in a production.
(Hint: Will you be providing this rule later, or did you
perhaps misspell "variabel"? Otherwise it will be
treated as an immediate <reject>.)