print Persian/Arabic letters and numeral

[HoseinSL]

Hi, I use the U8G2 library on STM32, how do I write Persian/Arabic letters and numerals on the display?
I used the below code to print the "سلام" string on display, but it printed on display like "س‌ل‌ا‌م".
What is the problem and how should I fix it?

u8g2_FirstPage(&u8g2);
do
{
u8g2_SetFont(&u8g2, u8g2_font_iranian_sans_12_t_all);
u8g2_DrawUTF8(&u8g2, 40, 10, "سلام");
} while (u8g2_NextPage(&u8g2));

[olikraus]

This is a difficult issue. It had been discussed multiple times, but as of now there is no proper solution in u8g2 itself. I suggest to look into the existing issues, maybe there is something useful.

https://github.com/olikraus/u8g2/issues?q=is%3Aissue+arabic

Especially: #640, #529, #1015

[korsehindi]

These may also be useful.
+ , +

[olikraus]

Nice, thanks for the feedback (link repeated: https://github.com/idreamsi/u8g2-persian-reshaper)