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Postings from July 2010
On 2010-07-29 02:19, Jon Lang wrote: > Michael Zedeler wrote: > >> Jon Lang wrote: >> >>> This is definitely something for the Unicode crowd to look into. But >>> whatever solution you come up with, please make it compatible with the >>> notion that "aardvark".."apple" can be used to match any word in the >>> dictionary that comes between those two words. >>> >> The key issue here is whether there is a well defined and meaningful >> ordering of the characters in question. We keep discussing the nice >> examples, but how about "apple" .. "ส้ม"? >> > All I'm saying is: don't throw out the baby with the bathwater. Come > up with an interim solution that handles the nice examples intuitively > and the ugly examples poorly (or better, if you can manage that right > out of the gate); then revise the model to improve the handling of the > ugly examples as much as you can; but while you do so, make an effort > to keep the nice examples working. > I am sorry if what I write is understood as an argument against ranges of strings. I think I know too little about Unicode to be able to do anything but point at some issues, I belive we'll have to deal with. The solution is not obvious to me. >> I don't know enough about Unicode to suggest how to solve this. All I can >> say is that my example above should never return a valid Range object unless >> there is a way I can specify my own ordering and I use it. >> > That actually says something: it says that we may want to reconsider > the notion that all string values can be sorted. You're suggesting > the possibility that "a" cmp "ส้" is, by default, undefined. > Yes, but I am sure its due to my lack of understanding of Unicode. Regards, Michael.Thread Previous | Thread Next