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On 8 Apr 2003, Taylor Campbell <campbell@xxxxxxxxxxxx> wrote: > On Monday, April 7, 2003, at 04:47 AM, Sven Hartrumpf wrote: > > "3. Procedure Index": > > The markup you introduce should also be used in section 4. > > I don't quite see what you mean...could you be a little more specific? The use of bold and italics to mark up unchanged and changed procedures of R5RS, respectively. > > "4. Procedures" ... > > "Association Vectors": "they also occupy": why "also"? > > Do you think the sentence should be rephrased as > > 'Avectors are constant size, but they occupy LENGTH*2 cells); alists > ...' > > since it is something of a limitation that avectors are constant size? > > Or should I rephrase it even differently and put the 'limitation' after > the > advantage? It does not matter as long as you make the advantages clearer, e.g. "However, there are two major differences between avectors and alists: The advantage of avectors is that they occupy only length*2 ... while alists occupy ... The advantage of alists is that the number of associations can be more efficiently changed." > > avector-change[!]: why are the parameter key and value separated by > > avector? > > I dunno. What order do you think they should be in? The rough principle is often someting like this: [function-parameter-for-higher-order-functions] the-datastructure-itself parameters-needed-for-the-function This would give in this case: avector key value > > Suggestion: avector-update[!]: like avector-change but instead of > > "value" > > a unary function for updating is supplied, e.g. (lambda (old-value) (+ > > old-value 1)). > > These functions are important for the efficient implementation of some > > algorithms. > > Ah, good idea. > > Its parameters will be the similar to AVECTOR-CHANGE[!]'s (KEY then > AVECTOR then > F), only until someone decides on what the order ought to be. If you adopt the above principle, it will be: update-fun avector key OR avector key update-fun (if you regard update-fun as a normal parameter.) Greetings Sven