Unicode characters in notes

[anonymous]

There are notes with non-letter characteres like emoticons as part of the notes. The notes are correctly parsed in web, but not in JOSM. One example is this note: ​https://www.openstreetmap.org/note/814497
It has a house emoticon.

[skyper]

Yes, I can reproduce with latest.
Please, always add your status report to tickets of type defect. It is much easier if we now your JOSM version, java version, operating system, language setup and encoding settings.

Relative:URL: ^/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2021-11-20 00:34:04 +0100 (Sat, 20 Nov 2021)
Revision:18324
Build-Date:2021-11-20 02:31:12
URL:https://josm.openstreetmap.de/svn/trunk

Identification: JOSM/1.5 (18324 en) Linux Debian GNU/Linux 11 (bullseye)
Java version: 17.0.1+12-Debian-1deb11u2, Debian, OpenJDK 64-Bit Server VM
Look and Feel: com.formdev.flatlaf.FlatDarculaLaf
Environment variable LANG: en_US.utf8
System property file.encoding: UTF-8
System property sun.jnu.encoding: UTF-8
Locale info: en_US

Plugins:
+ flatlaf (35862)

[skyper]

See also #21597.

[gaben]

The emoticon vanishes here josm/trunk/src/org/openstreetmap/josm/gui/widgets/HtmlPanel.java?rev=17299#L100​. It's an internal JDK method call, so the parsing needs to be changed.

[gaben]

So the JEditorPane component used for note rendering utilizes HTML 3.2 (introduced in January 1997). It limits the possibilities and it is the source of the issue.

On StackOverflow, they recommend something JavaFX based solution for HTML rendering, but I think that is too much.