Sorry, Doug,
When you mentioned the two numbers 4 and 6, I think you are talking about the average number of characters and average number of characters with variants per label. However, a domain name is composed of several labels. Let's consider your example. Then, a domain name would contain more than 10 characters each with at least two different codepoints in Unicode as long as it contains 3 labels. You see, this is exactly the case in which we have more than 1,024 equivalent Chinese domain names. -- Janming [EMAIL PROTECTED] �g�J�G > In a message dated 2002-02-12 9:50:11 Pacific Standard Time, > [EMAIL PROTECTED] writes: > > > Dear Dough, > > Hmm, I guess it really is difficult to type names correctly. :-) > > > As several members of the list tried to explain to the group, it is > > very difficult to ask a user to enter a Chinese domain names exactly > > in a Unicode input environment. This is because the complexity of > > getting the exact domain name is exponential in the length of a > > domain name. In other words, if there are 10 characters with variants > > in a domain name, then there are at least 1,024 different Unicode > > strings corresponding to the same name. It is frustrated for users to > > deal with such a high complexity. > > Continuing to talk about 1,024 variants is unrealistic and is causing you to > lose credibility, because > > (1) the vast majority of Chinese domain names (in all surveys and in existing > testbeds) are, and will be, much shorter than 10 Han characters, and > > (2) a significant percentage of Han characters do not exist in TC/SC pairs. > > If you consider a CDN that is, much more realistically, 6 characters in > length, and 4 of those 6 characters can be expressed as either TC or SC, then > you have 2^4 = 16 possible variants. Now, it may well be that registering 16 > names is an unreasonable burden. I am not saying that there is no problem at > all. But it does no good to exaggerate the problem by claiming that it will > cause THOUSANDS of variants of a typical domain name. > > -Doug Ewell > Fullerton, California > (address will soon change to dewell at adelphia dot net)
