Re: hard to understand code for the representation of tab

[Eli Zaretskii]

> Date: Sat, 12 Oct 2024 21:15:10 +0200
> From: Patrice Dumas <pertusus@free.fr>
> 
> This is not important, but in the info code, in info/util.c in the
> printed_representation function, which returns a pointer to string that
> is the printed representation of character (or other logical unit) if it
> were printed at a given screen column.
> 
> l 226 for tab there is a code that I do not understand at all,
>   *pchars = ((pl_chars + 8) & 0xf8) - pl_chars;

AFAIU, it computes the number of columns to the next tab stop.
I suggest to try this with different values of pl_chars.