[Texmacs-dev] Atomic undo?

[Victor Porton]

I am to write a code which will modify a buffer:

First it deletes an object (a <bookmark> tag).
Second it inserts a similar object in an other place of the document.

I want that TeXmacs would consider it a single operation in terms of undo 
history, so that an undo operation would undo two modifications of the buffer 
at once not one-by-one.

-- 
Victor Porton - http://portonvictor.org