Full-width punctuation characters are rendered incorrectly

The Bug

Punctuation marks in CJK languages are supposed to be full-width (i.e. having the same width as a normal character), but Minecraft renders them incorrectly as half-width characters.

Here is an example:

Test string:

测，试。测；试：测'试'测"试"测（试）测、试《测》试

In game:

As you can see from the text box above, all the punctuation characters in the text string take up the same width as a Chinese character, while most of them in game does not have the correct horizontal bearing and advance.

Affected characters:

• ，

• ；

• ：

• （

• ）

• ？

• ｛

• ｝

• ［

• ］

• ！

Potential Fix

A fixed glyph_sizes.bin file provided by @unknown can be found under attachments:

(MC-231056).