the parser) to use in
preference to the generic file <i>Driver.frame</i>.  It is suggested that if
users wish to make use of this feature they should use <i>Driver.frame</i> as
a guide towards developing a frame which can be used for their specific
application.


<H3>3.6 Grammar tests</H3>

<P>Coco/R performs several tests to check that the grammar, besides being
syntactically correct, is also semantically well-formed. If one of the
following error messages is produced, no compiler parts are generated. </P>