Re: column int->float diff

[Richard Stallman]

      inserting text increments the
    column normally, but this is not the case for images (on the same line)
    which add 1 to the column only:

This is because the image is placed on top of one character.
The indentation code only knows that it is one character.
It pays no attention to the image on it.

When the indentation code knows about widths of characters, then it
should also check for images and use the width of the image
to do its calculation.

I think that if you use the `iterator' facility
it will automatically handle that properly.