Re: [Scheme-reports] Symbol escapes - clarification

[John Cowan <cowan@x>]

Peter Bex scripsit:

> In "bare" symbols I'd expect anything but s-expression delimiters
> (spaces, parens, semicolons and possibly single quotes, commas and
> backticks) to be allowed but no "special interpretation" of composite
> characters.  This keeps the reader simple; just consume characters
> until you find an s-expression metacharacter.

No Scheme in my list allows " within an identifier.  I haven't tested
the other special lexical-syntax characters, but I expect all of them
except # will be treated similarly.

> I think I've argued this point before, but it would be more consistent
> to allow \ to escape the | so that || acts exactly analogously to ""
> in strings, where backslashes escape the delimiter.
> 
> This is simpler, more regular and allows implementation to use the same
> routine for reading strings and symbols (with the delimiter as parameter).

Ticket #324 filed.

-- 
If you understand,                      John Cowan
   things are just as they are;         http://www.ccil.org/~cowan
if you do not understand,               cowan@x
   things are just as they are.

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