Is hex an ascii thing?
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From: Mike Gonta on 11 Apr 2007 16:46 On Apr 11, 2:59 pm, "r...(a)cs.ucr.edu" <r...(a)cs.ucr.edu> wrote: > It's just a representation. So you can use whatever you want. However, > if you expect other people to make sense of what you're writing, it's > a good idea to stick to the standard conventions. Other than the 0-9, A-F apparently there's no agreed upon standard for the indicator that the representation is hexadecimal. > Based on nearly > every hexadecimal conversion routine I've ever seen, I think it's safe > to say that "Hex(adecimal) representation in computer programs is an > ASCII thing." These routines would need to be updated to accommodate Unicode (or at least UTF-16). > There is no reason someone couldn't use Cyrillic or > Greek symbols. Do you mean 0-9 and the first 6 letters of their respective character sets? > There is no requirement that they be the first six > letters of their alphabet. Apparently the Bendix computer circa 1956, used 0-9, U-Z. > Indeed, there is no requirement that they > be letters of the alphabet at all. All that is important is that you > have sixteen distinct symbols (and the first 10 don't have to be the > Arabic numerals, either) Let's not rock the boat. After all numbers are numbers, although users of other languages might choose to use their own numeralical characters. > and that whomever you're communicating with > agrees to your representation. The last issue is the real rub -- most > other people expect 0-9 and A-F when reading some string > representation of a hexadecimal value. I'm just wondering if this is a generalized thing due to the historical lack of a universal character representation (Unicode) and/ or the difficulty in upgrading our programming environment to utilize Unicode. Mike Gonta look and see - many look but few see
From: Mike Gonta on 11 Apr 2007 16:57 "[Jongware]" <IdontWantS...(a)hotmail.com> wrote: > How about that? The string "0x1A" in Unicode is still recognizable by an > extended atoi() function. That's because 7bit ASCII is a proper subset of Unicode. > Replace the character 'A' with any other first > character in another alphabet and it is not. My point exactly. > Maybe we should stick to the de facto definition of a hex number as "consisting > of 0 to 9 and A to F". Yes indeed. The numerals and the first 6 letters of the alphabet. But why must the characters be English? Worst still is the lack of agreement on the indicator that the number is in fact hexadecimal. Mike Gonta look and see - many look but few see
From: Jim Carlock on 11 Apr 2007 17:04 "[Jongware]" wrote... News reader: Outlook Express Greek Capital Letter Gamma... G Accessories\System Tools\Character Map. Set the Font to Arial. Scroll down to U+0393 Greek Capital Letter Gamma, select it by clicking on it, then Click on the Select button. Click on the Copy button. Not sure if this works or not. Will see. -- Jim Carlock
From: Jim Carlock on 11 Apr 2007 17:28 "[Jongware]" wrote... "Jim Carlock" posted... : News reader: Outlook Express : Greek Capital Letter Gamma... : G : : Accessories\System Tools\Character Map. : Set the Font to Arial. : Scroll down to U+0393 Greek Capital Letter Gamma, select it : by clicking on it, then Click on the Select button. : Click on the Copy button. : : Not sure if this works or not. Will see. Well it worked before I pressed the Send button. Seems to require a Greek Newsgroup with HTML encoding to be able to handle the extra characters. 0, 1, 2, 3, 4, 5, 6, 7, 8, 9... 10 ? ? ? ? ? � ? ? ? ? 20 � � ? ? ? ? ? ? ? ? 30 ? ? ! Character 218 comes close maybe? <g> ALT+218 will get you Capital Greek Letter Gamma... +amma Oh well... newsgroups with HTML enchoding! -- Jim Carlock
From: Jim Carlock on 11 Apr 2007 17:31
One more thing to try... ? Another character set? Trying with the Baltic Character set... -- Jim Carlock |