[Bug 42654] New: 3-byte utf8-charactes don't display

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=42654

            Bug ID: 42654
           Summary: 3-byte utf8-charactes don't display
           Product: Wine
           Version: unspecified
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: wine-bugs at winehq.org
          Reporter: peter_laursen at webyog.com
      Distribution: ---

Created attachment 57590
  --> https://bugs.winehq.org/attachment.cgi?id=57590
Application cannot identify the glyphs for 3 byte utf8-characters - display as
squares

This is a snippet from a SQL-script. 

insert into `unitest`(`id`,`english`,`native`) values (4,'mandarin','官話');
insert into `unitest`(`id`,`english`,`native`) values (5,'thai','ไทย');
insert into `unitest`(`id`,`english`,`native`) values (6,'hindi','हिन्दी');
insert into `unitest`(`id`,`english`,`native`) values (7,'arabic','العربية');
(the origunal file is utf8-encoded)

Thai, Hindi and Mandarin characters dont display in common Windows program such
as Notepad++ (a text editor) and SQLyog (a MySQL client).  In Windows it works
fine with same programs and in same type of native Linux programs it also does
with same fonts specfied (for instance I tested that both "Liberation"and
"Noto" fonts work fine in LibreOffice in Linux (not Wine) but none works in
Wine.

I think that Wine does not *provide* details - such as glyphs - to applications
from the font file, if the utf8-encoding for a character is more than 2 bytes
long.

Tested with Wine 1.8 and 2.3 on various OpenSuSEs. No diference.

Attaching screenshot from Notepad++

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