Re: Use of { and } was Re: Back & Forth - Co-routines

On 02.02.25 15:32, Anton Ertl wrote:

albert@spenarnc.xs4all.nl writes:

The first publication of Pascal was IIRC

1975
Pascal , user manual and report.
Jensen/Wirth
ISBN 0-387-90144-2

Uses { } in all examples, and it is referenced in chapter 1, briefly.

I also have a book on Pascal: "Pascal Handbuch" by E. Floegel.  In
Figure 3.31 on page 15 it shows (* and *), but not { and } as
"Verwendete Zeichen in Pascal" (used characters in Pascal, although
the intention is probably to show the symbolic lexemes).

Before IBM PC compatibles with their CP 437 became ubiquituous, the
characters [ \ ] { | } ~ were commonly replaced with language-specific
glyphs, in German e.g. with the umlauts and sz-ligature.

This is the reason that in German publications Pascal sources often used
(* ... *) for comments, and (. ... .) for indices (instead of [...]),
because otherwise comments would have appeared as ä ... ü, and indices
as Ä ... Ü.

--
Bernd Linsel