Section 4.3.2 (Pattern language) of R7RS draft 6 explains that "The <pattern> in a <syntax rule> is a list <pattern> whose first element is an identifier." Since there is no "should" or "must" used, what kind of restriction is this? The BNF in section 7.1.5 (Transformers) doesn't seem to include any such limitation. (It probably should, by using a different token in place of the initial <pattern>.)
By the way, I find the wording in the above quote from section 4.3.2 confusing, since it is not clear at first what "a list <pattern>" is supposed to mean. Does anyone agree? (Using a different syntactic variable for the initial <pattern>, corresponding to the change in the BNF, would probably fix this issue.) On an unrelated but very minor issue (it probably doesn't deserve its own mail), the word "template" on paragraph 3 of the "Syntax" section of section 4.3.2 (Pattern language) should be wrapped in angle brackets. Regards, Taylan _______________________________________________ Scheme-reports mailing list [email protected] http://lists.scheme-reports.org/cgi-bin/mailman/listinfo/scheme-reports
