On Wed, 2011-08-10 at 09:40 -0500, Matthew J. Roth wrote: > Tim wrote: > > > > I used to use the underscore, as it made sense (to me, and other > > programmers) as a substitute for a space. But there's two drawbacks: > > > > 1. Try explaining to the clueless what an underscore is, and how to > > type it. Try doing that again and again, and you get real sick of it. > > > > 2. You have the messy combinations of punctuation such as: > > > > Shakespeare_-_The_Taming_of_the_Shrew > > > > Where it'd really be better to collapse all punctuation down to just one > > punctuation symbol. That's "better" as in "easier and more convenient," > > not more lexically correct. Remember these are URIs (i.e. codes), not > > general language. > > > > 3. If you ever want a URI printed on a newspaper or magazine, whoever > > types it may not be able to get an underscore into the text, unless > > they're familiar with how their publishing system works. And, even > > then, they may fail. Many of them will convert an underscore into an EM > > dash, since an underscore is hardly ever desired in print, yet proper > > dashes are wanted all the time. > > 4. Host Names (or 'labels' in DNS jargon) as traditionally defined by > RFC 952 and RFC 1123 may be composed of upper and lower case > characters, numeric characters, and the dash character. RFC 2181 > significantly liberalized the valid character set including the use of > "_" (underscore), but it is still a *good idea* to stick to the > traditionally defined characters[¹]. It's become much worse than that with new classes of labels allowing non-ASCII character sets. See http://tools.ietf.org/html/rfc5890 poc -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
