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Groups > de.comp.os.unix.linux.misc > #115558

Re: [OT] Artikel Codierung

From Michael Ottenbruch <M.Ottenbruch@sailor.ping.de>
Newsgroups de.comp.os.unix.linux.misc
Subject Re: [OT] Artikel Codierung
Date 2021-03-09 11:00 +0100
Organization private site
Message-ID <s27h0m$r2u$1@lucy.ping.de> (permalink)
References (4 earlier) <rvknql$dvr$2@dont-email.me> <601ef977$0$32757$7b62cf90@news1.net.de> <i8ajimFpjdmU2@mid.individual.net> <AABgIDGJYWIAAAsN.A1.flnews@WStation7.micha.freeshell.org> <i8avo6FrvchU1@mid.individual.net>

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Am Sun, 7 Feb 2021 21:09:42 +0100, schrieb Arno Welzel:

> Michael Bäuerle:
> 
> > Arno Welzel wrote:
> >> Juergen Ilse:
> >>>
> >>> [...]
> >>> Nein, das Problem entsteht dadurch, dass nicht von allen die "kleinste" (im
> >>> Sinne von "wenigsten aufwendige") Codierung verwendet wird, die zum codieren
> >>> des jeweiligen Textes ausreicht (wird das nicht irgendwo auch vorgeschrieben,
> >>> auch wenn sich fast keiner an diese Regel haelt?).
> >>
> >> Nein, es gibt keine solche Regel, dass man nur bestimmte Codierungen
> >> benutzen soll. Und ob nun ISO-8859-x oder UTF-8 macht bzgl. Aufwand
> >> keinen substantiellen Unterschied.
> > 
> > RFC 2046 sagt dazu:
> > <https://tools.ietf.org/html/rfc2046#section-4.1.2>
> > (Kapitel 4.1.2, letzter Absatz)
> > 
> > | In general, composition software should always use the "lowest common
> > | denominator" character set possible.  For example, if a body contains
> > | only US-ASCII characters, it SHOULD be marked as being in the US-
> > | ASCII character set, not ISO-8859-1, which, like all the ISO-8859
> > | family of character sets, is a superset of US-ASCII.  More generally,
> > | if a widely-used character set is a subset of another character set,
> > | and a body contains only characters in the widely-used subset, it
> > | should be labelled as being in that subset.  This will increase the
> > | chances that the recipient will be able to view the resulting entity
> > | correctly.
> 
> Das sagt eigentlich nicht aus, dass man nur einen möglichst einfachen
> Zeichensatz verwenden soll, sondern dass die angegebene Codierung gemäß
> MIME den kleinst mögliche Variante passend zum Inhalt verwenden soll.
> 
> Wenn also ein Text faktisch US-ASCII ist, soll er nicht als ISO-8859-1
> oder UTF-8 deklariert werden, selbst wenn das rein technisch zulässig wäre.
> 
> Dass man aber z.B. für deutsche Umlaute generell ISO-8859-1 nutzen soll,
> und nicht UTF-8, weil Software möglicherweise ISO-8859-1 beherrscht,
> aber UFT-8 nicht, ist dort nicht erkennbar.

| > | More generally,
| > | if a widely-used character set is a subset of another character set,
| > | and a body contains only characters in the widely-used subset, it
| > | should be labelled as being in that subset.

Für mich ist das da schon erkennbar, oder ist für Dich ISO-8859 kein
"widely-used subset" von UTF-8?
-- 
...und tschuess!

Michael
E-mail: M.Ottenbruch@sailor.ping.de

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            [OT] trn Hans CraueI <crauel_usenet@freenet.de> - 2021-02-06 00:16 +0000
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            Alte Newsreader (was: ubuntu releas-upgrade) Clemens Schüller <cs.usenet@mailbox.org> - 2021-02-05 20:12 +0100
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                Re: ubuntu releas-upgrade Claus Reibenstein <creibens@gmail.com> - 2021-02-06 13:13 +0100
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                Re: ubuntu releas-upgrade Andreas Kohlbach <ank@spamfence.net> - 2021-02-06 09:24 -0500
                Re: ubuntu releas-upgrade klaus reile <klaus.reile@x-mail.org> - 2021-02-06 19:17 +0100
                Re: ubuntu releas-upgrade Diedrich Ehlerding <diedrich.ehlerding@t-online.de> - 2021-02-06 18:19 +0100
                Re: ubuntu releas-upgrade klaus reile <klaus.reile@mail.ru> - 2021-02-06 19:30 +0100
                Re: ubuntu releas-upgrade Andreas Kohlbach <ank@spamfence.net> - 2021-02-06 13:50 -0500
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                Re: ubuntu releas-upgrade Diedrich Ehlerding <diedrich.ehlerding@t-online.de> - 2021-02-07 12:43 +0100
                Re: ubuntu releas-upgrade Claus Reibenstein <creibens@gmail.com> - 2021-02-07 14:33 +0100
                Re: OT: Was Grundsaetzliches was: ubuntu releas-upgrade klaus reile <klaus.reile@mail.ru> - 2021-02-07 14:55 +0100
                Re: OT: Was Grundsaetzliches was: ubuntu releas-upgrade Andreas Kohlbach <ank@spamfence.net> - 2021-02-07 13:10 -0500
                Re: OT: Was Grundsaetzliches was: ubuntu releas-upgrade Gernot Griese <ggriese@gmx.de> - 2021-02-07 20:02 +0100
                Re: OT: Was Grundsaetzliches was: ubuntu releas-upgrade Andreas Kohlbach <ank@spamfence.net> - 2021-02-07 15:30 -0500
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                OT (was: Re: ubuntu releas-upgrade) Andreas Neumann <an5275@sedo.com> - 2021-02-07 12:08 +0200
                Re: OT (was: Re: ubuntu releas-upgrade) klaus reile <klaus.reile@mail.ru> - 2021-02-07 11:17 +0100
                Re: ubuntu releas-upgrade Andreas Kohlbach <ank@spamfence.net> - 2021-02-06 09:27 -0500
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                Re: ubuntu releas-upgrade Frank Miller <miller@posteo.ee> - 2021-02-07 06:21 +0100
                Re: ubuntu releas-upgrade Arno Welzel <usenet@arnowelzel.de> - 2021-02-07 17:39 +0100
              Re: ubuntu releas-upgrade Juergen Ilse <news@usenet-verwaltung.de> - 2021-02-06 20:17 +0000
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                Re: [OT] Artikel Codierung (was: ubuntu releas-upgrade) Arno Welzel <usenet@arnowelzel.de> - 2021-02-07 21:09 +0100
                Re: [OT] Artikel Codierung Michael Bäuerle <michael.baeuerle@stz-e.de> - 2021-02-08 11:00 +0100
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