Scheme Reports

Scheme language standardization process

Re: [Scheme-reports] ANN: first draft of R7RS small language available

On Sat, 16 Apr 2011 04:53:26 -0400, OKUMURA Yuki <mjt@x> wrote:

> Source expansion/evaluation is same for? For example:
>  #0=(define a . #0#)
> should be treated as a syntax error? or R7RS allows implementation can
> took infinite time for expand this
> form?

Are you asking whether expansion should be terminating? I do not believe  
any standard after or including R5RS had terminating expansion semantics,  
since macros may recur forever.

	Aaron W. Hsu

-- 
Programming is just another word for the lost art of thinking.

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