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On 05/13/2013 03:25 PM, John Cowan wrote:
Per Bothner scripsit:Another idea is to use '@' as a slice operator, since it is already used as such as part of ",@" unquote-splicing: &foo{&[@vals]}I favor this idea.
Specially, do you like it: - as an idea to explore?- as a special syntax for SRFI-10[789] should define for enclosed expression?
- as a general-purpose splicing operator?
However, "@ vals" has to work too, because "@vals" is a valid R7RS-small name (though not a valid R5RS name), so R7RS-small programmers have to write "@ vals" in all cases.
It is? I see '@' listed as a <special subsequent> but not a <special initial>. However, I just remember one complication: Kawa uses @CLASSNAME as syntax for annotation types, though only when CLASSNAME is a class type, so there isn't an actual conflict - it's just a little tricky to handle: @foo is a splice if foo is a sequence (list or vector); it is an annotation type if foo is a class. -- --Per Bothner per@xxxxxxxxxxx http://per.bothner.com/