Re: moving point over invisible and intangible text

[Luc Teirlinck]

Stefan Monnier wrote:

   Please try to convince the Gnus team not to use `intangible'.

Do you mean "not to use `intangible' in combination with `invisible'"
or do you mean "not to use `intangible', period"?

   It's a pretty sure way to get into odd problems (the problem being that
   `intangible' works at a very low-level and leads to really unexpected
   behavior such as (goto-char N) not going to position N).
   Just using `invisible' is usually sufficient.

Yes, but what if one wants to use `intangible' without using
`invisible'?  You seem to imply that the changes you made to the
treatment of the invisibility property mean that Elisp authors now can
rest assured that (goto-char N) is _definitely_ going to go to
position N.  Of course not.  People can still use the intangibility
property and, moreover, there are other reasons why (goto-char N) will
not necessarily go to position N (narrowing, size of buffer and so
on).  Why is the fact that (goto-char N) does not unconditionally go
to position N "really unexpected"?  It happens all the time.

Sincerely,

Luc.