Re: Should invisible imply intangible?

[Richard Stallman]

      In particular, how would your model treat an overlay
    having a display property with an image in it, when the text up to and
    including character 10 of the buffer was invisible (due to a text
    property, for example), and both overlay-start and overlay-end are 11.

Your previous statements did not say that you meant empty overlays
only.  I was thinking of nonempty overlays.  For empty overlays, the
treatment you proposed might be right.  At least it seems plausible
to try.

It would be useful to have functions to get the text properties (or
just one of them) that would be inherited by an insertion at a given
buffer position.  It looks like that would be useful as a subroutine
for many purposes.