>
>>oh - parsable? interesting. I read that and ignored it since it said so 
>>little
>>about what it was. why is it constrained to plain text?
>
>do you mean - why is the 'value' a String? It is assumed to be parsable 
>text - that's all. It could be XML

but if it's XML, then it's not plain text?

 >>because BIN is a LIST<BN>, then the head and tail take types BN and 
list<BN>.
>>But when we come to string, we pull a fast one, and ST is actually a 
>>LIST<ST>.
>>or ST is actually a ST. or something. So you see what I mean by we saying 
>>that
>>we pulled a fast one. Though I think mostly we tricked ourselves. And it 
>>should
>>be clear, that as editor of the spec, my current project is to fix that 
>>little mess!
>
>but hang on - ED has no formal type parameter - there is no way that ST 
>can redefine T to be ST

it's a good thing that head and tail are fictional properties then.
but I will be proposing to fix this. we will see how it goes

Grahame

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