On Oct 9, 6:55 pm, Lawrence D'Oliveiro <l...@geek- central.gen.new_zealand> wrote: > In message <i8o1ij$ro...@news.eternal-september.org>, BartC wrote: > > > "NevilleDNZ" <neville...@gmail.com> wrote in message > >news:ad9841df-49a1-4c1b-95d0-e76b72df6...@w9g2000prc.googlegroups.com... > > >> In Algol68 this would be: > >> x:=(i|"One","Two","Three"|"None Of The Above") > > > The point is, the construction works well when the syntax fully supports > > it. > > But note that Algol68 doesn’t support explicit labels on the alternatives > in a case expression or statement. That idea came later.
Good point... I do ponder why (given that linked lists can easily be created in Algol68) useful types like LIST and DICT were left out of the standard prelude. I do not recall any conversation about this in the "ALGOL Bulletins" /* I can reasonably guess why C elected to excluded these types */ The nearest to "explicit labels" in Algol68 would be: STRING x:=(i=0|"Zero" |:i=1|"One" |:i=2|"Two" |:i=3|"Three" |"None Of The Above"); Basically a compound IF statement... effectively a read only, compile- time dictionary. N -- http://mail.python.org/mailman/listinfo/python-list
