Re: A Mandelbrot set generator in HG LISP

On Tue, 15 Apr 2025 20:03:04 -0400, Stefan Monnier wrote:

Turns out it’s a bit strange: you have to position the cursor *on* an
opening parenthesis in order for it to highlight the corresponding
closer, but *after* the closing parenthesis for it to highlight the
corresponding opener.

 
Actually, "point" is never "on" a character, it's always between
characters. So in both cases "point" needs to be outside of the
parenthesis.

Except in one case it looks like it’s on it.

It's just that the cursor by default is a block drawn on the character
that follows the actual placement of "point".  Try to switch to a bar
cursor and that should be more clear.

If it weren’t for having to deal with parenthesis pileup, it could work
from either side.