[Openmcl-devel] Error on macro character after sharpsign colon

Tim Bradshaw tfb at tfeb.org
Tue Jan 26 21:35:43 UTC 2010


On 26 Jan 2010, at 21:13, Gary Byers wrote:

> Should '#:;abc be rejected, because the first character of its name
> is a macro character in a (standard) readtable that isn't otherwise
> in effect ?

No, and I don't think anyone is suggesting it should, are they?   
Surely the question is whether the sequence "#:xy" should read as an  
uninterned symbol when x is a (terminating or nonterminating) read- 
macro in the current readtable?

And the answer to that, I think, is that no, it should signal an  
error.  If you really want an uninterned symbol with a weird name,  
escape it: #:|#X#| or something.

(Unless I am very confused, which is possible, I am agreeing with Gary  
here and disagreeing with Terje).

--tim



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