Re: `make-overlay' very slow

[Werner LEMBERG]

>> I did that (see attachment for reference), and it really works at a
>> reasonable speed.  However, it is the completely wrong concept
>> since it sets the `modified' flag and stores undo information,
> 
> There is a macro in font-lock.el that you can use to modify text
> properties without storing undo information or setting the modified
> flag.

Thanks, will update my code.  However, it isn't a general solution
since my function should essentially work with all modes.


    Werner