ietf-nntp [a-z] in Wildmats

[Maurizio Codogno]

In die Thu, 21 Jun 2001 10:35:16 GMT
chl at clw.cs.man.ac.uk (Charles Lindsey) scripsit:

> AIUI, we are agreed on CLive's formulation of wildmats, but have to choose
> between versions with and without the [...] feature.

I may have lost some message in the group, but I do not understand 
exactly where the problem is.

Given that a normalization phase has to be carried out anyway
> 
> There is an issue which arises which we have not considered before, but
> which has been the subject of debate in the USEFOR list. Some characters
> are composite. For example, E ACCUTE is a single glyph possibly made up of
> two characters, an E and a non-spacing ACCUTE. Alternatively, it can be
> represented as the single character E ACCUTE, which is already present in
> ISO 8859-1 and in Unicode. Moreover, the single character version is to be
> preferred over the two-character version on account of the Unicode
> "normalization" procedure NFC (which is being incorporated in the USEFOR
> draft). So far so good. E ACCUTE in a newsgroup-name will be a single glyph
> represented by a single character (or else somebody has screwed up).
> 
> BUT there are some glyphs where there is no single character form. For
> example a TIBETAN LETTER PHA with a TIBETAN SIGN NYI ZLA NAA DA over the
> top of it (no, I don't know whether that would be good Tibetan or not, but
> you get the general idea). So what if you want to construct a [...]
> including that glyph (or do I mean those two characters)? I can see
> situations where either would be useful (Clive's present text is strictly
> in terms of characters). But whereas one might be sensible in some
> languages, the other might be so in other languages.
> 
> So I think it would be better to leave the feature out. Note that such
> multi-character glyphs present no special problems in the rest of the
> wildmat syntax, provided they are properly normalized.
> 
> BTW, when are we going to see a draft incorporating these latest agreed
> changes?
> 
> -- 
> Charles H. Lindsey ---------At Home, doing my own thing------------------------
> Tel: +44 161 436 6131 Fax: +44 161 436 6133   Web: http://www.cs.man.ac.uk/~chl
> Email: chl at clw.cs.man.ac.uk      Snail: 5 Clerewood Ave, CHEADLE, SK8 3JU, U.K.
> PGP: 2C15F1A9      Fingerprint: 73 6D C2 51 93 A0 01 E7 65 E8 64 7E 14 A4 AB A5
> 


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