Changes between Version 3 and Version 4 of Keywords


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Timestamp:
05/05/11 04:47:34 (6 years ago)
Author:
cowan
Comment:

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  • Keywords

    v3 v4  
    11There seems to be a serious issue with how we handle keywords (by which we mean, things like the `else` in `cond`). R5RS was vague on the matter, and each choice of implementation approach seems to have issues. 
     2 
     3 * Is `syntax-rules` a keyword in this sense?  Some Schemes say yes, others no. 
    24 
    35The R6RS standard decided to use explicitly exported and defined auxiliary syntax values, where every syntax-rules literals clause matched hygienically using `free-identifier=?`.