The (hex.) column is the UTF-8 encoding of
the character, that is, the sequence of bytes.
The actual Unicode character number is the
value in the first column, e.g., \u2190.
So you should be able to type 2190 and get
the character you want.
Unicode is the character set and the
character numbers (code points) are independent of how the
characters are encoded.
The encoding is how the characters are
translated to bytes when written as a byte sequence.
The Unicode standard defines a number of
encodings, including UTF-8 and UTF-16.
So there are not “UTF-8 characters”, only
UTF-8 encodings of Unicode characters.
The UTF-8 encoding was designed so that it
is identical to ASCII for the first 127 or 255 characters
(depending on which version of ASCII you’re looking at). But
after character 255 it takes at least 3 bytes to encode a
character.
Cheers,
E.
From: oXygen-user
<oxygen-user-bounces@oxygenxml.com> on behalf of
Bernhard Kleine <bernhard.kleine@gmx.net>
Date: Monday, February 19, 2018 at 9:17 AM
To: <oxygen-user@oxygenxml.com>
Subject: Re: [oXygen-user] How to type an UTF8
symbol in text as well as in author mode
The UTF8
table at http://www.utf8-zeichentabelle.de/unicode-utf8-table.pl?start=8592 shows this first
four lines.
|
Unicode |
Zeichen |
UTF-8 |
Name |
|
U+2190 |
← |
e2 86 90 |
LEFTWARDS
ARROW |
|
U+2191 |
↑ |
e2 86 91 |
UPWARDS ARROW |
|
U+2192 |
→ |
e2 86 92 |
RIGHTWARDS
ARROW |
|
U+2193 |
↓ |
e2 86 93 |
DOWNWARDS
ARROW |
When I tried to
change a utf8 hex value in a simple doc, using Ctrl-Shift-X,
I get:
(not a valid
hexadecimal sequence to change)
I also tried the
0x1F926 from Bens example below. The same error. What do I
wrong?
These arrows
would be a good example since they will be used.
Regards
Bernhard
Am 19.02.2018 um
10:03 schrieb Oxygen XML Editor Support (Radu Coravu) :
Hi,
Thanks for the reminder Ben.
Indeed I forgot about this feature in Oxygen:
https://www.oxygenxml.com/doc/versions/19.1/ug-editor/topics/text-mode-actions.html#text-mode-actions__convert-hex-sequence
which basically allows you to type away the hex digits in Oxygen and then invoke the special "Convert Hexadecimal Sequence to Character" action.
Regards,
Radu
Radu Coravu
<oXygen/> XML Editor, Schema Editor and XSLT Editor/Debugger
http://www.oxygenxml.com
On 2/19/2018 10:56 AM, Ben McGinnes wrote:
On Mon, Feb 19, 2018 at 09:33:28AM +0200, Oxygen XML Editor Support (Radu Coravu) wrote:
Hi Bernhard,
It seems that for "nbsp" which has the decimal equivalent "160" you would
need to type "ALT" and then "0160", that leading "0" seems to be important.
The same probably for all other characters, type their decimal equivalent
but it needs to be four typed figures.
Oh, how quickly we forget certain things. :)
oXygen has had the ability to enter UTF-8 characters in the first
plane by their four character hexadecimal code point value since
version 17.1. I can't recall what the default hotkey is for invoking
it because I changed mine (back) to F8 as soon as I installed that
version. I believe I've still got the plugin you guys provided me
during my trial period for 17.0.
Anyway, if Bernhard is happy with using hex instead of int, that's the
solution instead of the Windows alt sequences (or the Mac alt/option
sequences either, for that matter).
....
bash-4.4$ unum.pl 0x1f926
Octal Decimal Hex HTML Character Unicode
0374446 129318 0x1F926 🤦 "🤦" FACE PALM
bash-4.4$
Obviously some of us can see that character properly and some can't,
but you all know which it is.
Regards,
Ben
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