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Groups > comp.os.linux.advocacy > #591783

Re: US-ASCII is a subset of the set of Unicode code points.

From "R.Wieser" <address@not.available>
Newsgroups comp.os.linux.advocacy, alt.os.linux, comp.os.linux.misc
Subject Re: US-ASCII is a subset of the set of Unicode code points.
Date 2021-08-06 17:36 +0200
Organization Aioe.org NNTP Server
Message-ID <sejkuh$1nj1$1@gioia.aioe.org> (permalink)
References <sejhjm022lo@news2.newsguy.com> <Jeff-Relf.Me@Aug.6--8.15am.Seattle.2021>

Cross-posted to 3 groups.

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Jeff,

>> As far as I know, the first 32 [ code points ] (except CR and LF)
>> are just dead space.  Is this correct ?
>
> No, US-ASCII is a subset of the set of Unicode code points.

Try to understand the question before you answer it.

@Fabian Russell:

> As far as I know, the first 32 [ code points ] (except CR and LF)
> are just dead space.  Is this correct ?

No.  All of those have definite meanings.   Just think of the BACKSPACE
(0x08), TAB (0x09), ESCape (0x1B) and BELL (0x07) characters.   One you
might never have heard of is ctrl-Z (0x1A), which, for old-style textfiles,
means that the file ends (even when it may contain some more
characters/garbage).

For a full list you could take a peek here : http://asciiset.com/

Granted, quite a few of the control-characters there you will never use.
They are still there if you need them though.

Regards,
Rudy Wieser

P.s.
Did you also think of the DEL (0x7F) character ?    Just as the BACKSPACE
character is used to delete the character left of the cursor, the DEL
character is ment to delete the character under the cursor.

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Any Unicode Experts? FR <fr@random.info> - 2021-08-06 14:39 +0000
  Re: Any Unicode Experts? Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2021-08-06 14:51 +0000
    Re: Any Unicode Experts? FR <fr@random.info> - 2021-08-06 15:01 +0000
  Re: Any Unicode Experts? Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2021-08-06 14:54 +0000
  US-ASCII is a subset of the set of Unicode code points. Jeff-Relf.Me  @. - 2021-08-06 08:15 -0700
    Re: US-ASCII is a subset of the set of Unicode code points. "R.Wieser" <address@not.available> - 2021-08-06 17:36 +0200
      Re: US-ASCII is a subset of the set of Unicode code points. FR <fr@random.info> - 2021-08-06 15:49 +0000
        Re: US-ASCII is a subset of the set of Unicode code points. Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2021-08-06 16:14 +0000
        Re: US-ASCII is a subset of the set of Unicode code points. "R.Wieser" <address@not.available> - 2021-08-06 18:48 +0200
        Re: US-ASCII is a subset of the set of Unicode code points. Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2021-08-06 17:25 +0000
          Re: US-ASCII is a subset of the set of Unicode code points. FR <fr@random.info> - 2021-08-06 17:52 +0000
          Re: US-ASCII is a subset of the set of Unicode code points. FR <fr@random.info> - 2021-08-06 17:57 +0000
  Re: Any Unicode Experts? Eli the Bearded <*@eli.users.panix.com> - 2021-08-06 20:27 +0000
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