Re: TeX input method lacking subscript characters, was: Re: MingGW: Bug in TeX input-method?

[Stephen Berman]

On Sun, 12 Dec 2021 22:44:24 +0100 "H. Dieter Wilhelm" 
<dieter@duenenhof-wilhelm.de> wrote:

> Stefan Monnier <monnier@iro.umontreal.ca> writes:
>
>>> And can one mitigate this or is there a compulsory reason why, for the
>>> underscore, b,c,d,f,g,q,w,y,z were left out?
>>
>> IIRC this part of the TeX input method is auto-generated from the
>> Unicode tables, so if it's not there it's presumably because it's absent
>> from Unicode.  Why that is, I don't know.
>
> Yes, it seems so.  I checked the unicode standard version 14.0
> superscript and subscript character code table.  And - indeed - below
> subscripts aren't described.
>
> b_b, c_c, d_d, f_f, g_g, q_q, w_w, y_y, z_z
>
> but when I'm putting above sequence in an org-mode buffer and typing M-x
> org-toogle-pretty-entities it seems that org-mode manages to display
> these unicode subscripts!  And it works for me on Windows and Gnu-Linux.

Org mode uses text properties (display, invisible) to do that, see
`org-raise-scripts' in org.el.

Steve Berman