Re: [Nmh-workers] Thoughts: header/address parsing

[Anthony J. Bentley]

Ralph Corderoy writes:
> Hi David,
> 
> > 2) Optionally, the user could move to the new behavior of not
> >    counting the trailing newline.
> 
> Like Python's `from future import sanity'.
> 
> A problem with ~/.mh_profile calling for sanity is that it might be
> wanted generally but the user can't be sure no scripts they use want
> insanity?
> 
> Is -width also only interested in counting bytes?  I'm UTF-8 here, but
> get
> 
>     $ scan -format '%{subject}' .
>     =?utf-8?Q?Po=C2=A3nds.?=
>     $ for w in {0..9}; do
>     >     echo "$w:<`scan -width $w -format '%(decode{subject})' .`>"
>     > done
>     0:<Po£nds.>
>     1:<>
>     2:<P>
>     3:<Po>
>     4:<Po�>
>     5:<Po£>
>     6:<Po£n>
>     7:<Po£nd>
>     8:<Po£nds>
>     9:<Po£nds.>
>     $ 
> 
> Perhaps a new -runes that counts runes/glyphs/codepoints would sidestep
> the compatibility issue, -runes trumping -width?

But characters can consist of multiple codepoints (see: accents). And
characters can be double-width. Or zero-width. Or, or, or...

-- 
Anthony J. Bentley