When displaying a string containing line breaks in Japanese, the characters become garbled.

[Chubei-Nakagawa]

When calculating the width of a string, the width is calculated byte by byte, which can cause line breaks in the middle of characters.

https://github.com/window-maker/wmaker/blob/master/WINGs/wmisc.c#L125
This part needs to loop through one character at a time, but the current source code is looping through one byte at a time.
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[dmaciejak]

hi, can you explain how to reproduce the issue ?

[Chubei-Nakagawa]

Run WPrefs to open the Window Focus settings.
(LANG=ja_JP.UTF-8 WPrefs &)

environment: Ubuntu 25.10 (Install with Japanese settings)

[Chubei-Nakagawa]

It will be displayed like this.