Re: confusing info in C-u C-x =

[martin rudalics]

> What does the `From 14 to 15' mean?

14 denotes the position of the character you want to describe as
replicated in the *Help* buffer, in your case the position of the `S' in
SPC.  When the character you want to describe is covered by an overlay,
`describe-char' always creates a dummy overlay of length 1 at that
position and gives it the properties of the overlay covering the
character you want to describe.  In your case there must have been at
least one overlay covering the space.  Any overlay properties there
should have been replicated correctly.  The `From 14 to 15', however,
refers to the dummy overlay in the *Help* buffer and should be, in my
opinion, omitted.

Obtaining the start/end positions of all overlays covering the character
you want to describe would require a revision of the concept sketched
above.