Re: [Chicken-users] hygienic branch (progress report, sort of)

[Andrew Gwozdziewycz]

On May 16, 2008, at 6:34 AM, Hans Bulfone wrote:

my question is: will it still be possible to write a (er-) macro that

creates new identifiers like define-record does?

In most hygienic macro systems it's possible to "break" hygiene for

the purposes of introducing identifiers. I don't believe syntax-rules

has a way to do this, syntax-case (through the syntax->datum etc)

and explicit renaming macros definitely do. 

Explicit renaming macros are very similar to the low level macros

of define-macro except for the fact that you must "explicitly rename"

identifiers to be hygienic. But, you don't have to rename _all_ of them

should you want to introduce an identifier.

--

Andrew Gwozdziewycz

address@hidden

http://www.apgwoz.com  |  http://www.photub.com