Andrew Robbins scripsit: > In terms of transmission, the (inline hex escape) lexical space of > R6RS is sufficient to encompass most of the value space of (vertical > bar) identifiers, with the added bonus of being able to be transmitted > to interpreters and compilers via 8-bit unsafe channels and 7-bit > encoded ASCII text files.
Everything except ||, the result of (string->symbol ""). > Neither (vertical bar) nor Unicode identifiers (also added in R6RS) > can make this claim. Vertical bar as defined in draft 6 allows inline hex escapes within the bars, so it allows everything that inline hex escapes do. > Why would we add 1114111 redundancies to Scheme identifier lexical > space when the only addition to the value space is ||? Vertical bars allow mixed-case identifiers in a case-folding context to be readable. |Foo| is much more readable than \x46;oo, and |FOO| is infinitely more readable than \x46;\x4F;\x4F;. This is the example that convinced me of the virtues of |...|. -- We call nothing profound [email protected] that is not wittily expressed. John Cowan --Northrop Frye (improved) _______________________________________________ Scheme-reports mailing list [email protected] http://lists.scheme-reports.org/cgi-bin/mailman/listinfo/scheme-reports
