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Re: /srv/bzr/emacs/trunk r102591: * src/lread.c (read1): Allow newstyle
Stephen J. Turnbull
Re: /srv/bzr/emacs/trunk r102591: * src/lread.c (read1): Allow newstyle unquote outside of backquote.
Fri, 10 Dec 2010 10:25:15 +0900
Stefan Monnier writes:
> If we ever want to fully support new-style backquotes, we'll have to
> disallow commas from symbols.
You also have the alternative of distinguishing the first character
(ie, allow a different set of characters there).
On a related topic, has anybody ever run into an issue with lookalike
characters (eg, Japanese full-width latin and numerals, Latin A
vs. Cyrillic A vs. Greek A, etc)? Unicode alleges this to be a
security risk. (The reason this comes up here is that JIS mirrors the
entire ASCII set into its multibyte encoding -- including the comma.
So if we don't unify ASCII ?, with JIS ?,, you could have symbols that
have commas in them but those commas are syntactically non-commas. ;-)