- From: Řistein E. Andersen <liszt@coq.no>
- Date: Wed, 21 Oct 2009 22:39:00 +0100
On 19 Oct 2009, at 05:52, Ian Hickson wrote: > I've noted your e-mail here [...] and moved the whole thing out of > the spec. That does not seem to apply to the last part of the original e-mail, quoted below. ?istein E. Andersen > Other character encoding issues: > -------------------------------- > > ASCII-compatibility: > The note in ?2.1.5 Character encodings? seems to say that ?variants > of ISO-2022? (presumably including common ones like ISO-2022-CN, > ISO-2022KR and ISO-2022-JP) are ASCII-compatible, whereas HZ-GB-2312 > is not, and I cannot find anything in Section 2.1.5 that would > explain this difference. > > > Discouraged encodings: > ?4.2.5.5 Specifying the document's character encoding? advises > against certain encodings. (Incidentally, this advice probably > deserves not to be ?hidden? in a section nominally reserved for > character encoding *declaration* issues.) In particular: > >> Authors should not use JIS-X-0208 (JIS_C6226-1983), JIS-X-0212 >> (JIS_X0212-1990), encodings based on ISO-2022, and encodings based >> on EBCDIC. > > It is not clear what this means (e.g., the character set > JIS_C6226-1983 in any encoding, or only when encoded alone according > to RFC1345 as described above); the list of discouraged encodings > seems conspicuously short if it is supposed to be complete; and the > lack of rationale makes it difficult to understand why these > encodings are considered particularly harmful (JIS_C6226-1983 v. > JIS_C6226-1978 or ISO-2022 v. HZ, to mention but two at least > initially puzzling cases). It might be better to say *why* > particular encodings are better avoided, whether or not the list of > discouraged encodings be presented as definitive. > > Minor grammar detail in 4.2.5.5: >> Conformance checkers may advise against authors using legacy >> encodings. > > This is ambiguous. It should probably be ?advise against authors? > using legacy encodings? or better ?advise authors against using > legacy encodings?.
Received on Wednesday, 21 October 2009 14:39:00 UTC