# Zero-width character test

Below are 34 zero-width Unicode characters, placed between underscores.
Does your browser display them?  Your text editor?  Your terminal?  To
understand why not displaying them  might be a problem, read "Tracking
via pasted text":
gopher://rawtext.club/0/~nervuri/stega.txt

As a point of reference, here are a few positive-width Unicode
characters:
0020: _ _ | 00E9: _é_ | 03A9: _Ω_ | 5B57: _字_ | 1F407: _🐇_


## Zero-width characters

 061C: _؜_

 180E: _᠎_

 200B: _​_
 200C: _‌_
 200D: _‍_
 200E: _‎_
 200F: _‏_

 202A: _‪_
 202B: _‫_
 202C: _‬_
 202D: _‭_
 202E: _‮_

 2060: _⁠_
 2061: _⁡_
 2062: _⁢_
 2063: _⁣_
 2064: _⁤_
 2066: _⁦_
 2067: _⁧_
 2068: _⁨_
 2069: _⁩_

 206A: __
 206B: __
 206C: __
 206D: __
 206E: __
 206F: __

 FEFF: __
 FFF9: __
 FFFA: __
 FFFB: __

E0001: _󠀁_

E0020: _󠀠_
... (E0020–E007F formerly used for tagging texts by language)
E007F: _󠁿_

This is probably not a complete list.  Contact me if you know of any
others.

As of February 2021, Unicode contains 143,859 characters.

Unicode Character Database:
https://www.unicode.org/Public/UCD/latest/


## Programs which pass the test

Less - when used with the "-U" option:
https://www.greenwoodsoftware.com/less/

Contact me if you know of any others.


## Other protocols

This test page is also available on Gemini and the Web:

gemini://rawtext.club/~nervuri/zero-width.gmi
https://nervuri.net/zero-width


## Contact info

gopher://rawtext.club:70/0/~nervuri/contact.txt

_________________________
Created:       2021-02-20
Last modified: 2021-03-20

Source (contributions welcome):
https://gitlab.com/nervuri/nervuri.net/-/blob/master/gopher/zero-width.txt

License: CC-BY-SA:
https://creativecommons.org/licenses/by-sa/4.0/