> DN> with a string. The algorithm I use is an adaptation of the
 > DN> "gap" technique (popular with editors), which is based on
 > DN> the idea that the "hole" of free space inside a buffer can
 > DN> slide within it - to insert text less than the size of the
 > DN> gap, you just move the cursor (lower bounds of the gap) to

 > Would you know of a site or name of an editor (with source) that would
 > have that ?

The 'joe' editor was originally written as a classroom demonstration of the
theory. It has become a little more spiffy since those days, but it still
contains the algorithm. But it isn't particularly complex.

 > I'd like to have a look at this, at first read it seemed simple, but the
 > more i think about it the more complicated it gets.

Nope, not really complex at all.


 > I'm not sure if i get this slididng business.

Perhaps "moving" hole is a better description. It does
"slide" if you read the buffer sequentially, though, since the
lower end of the gap is your "cursor".

 > It sounds like just a few ifs
 > and memmoves,perhaps the buffer would need to be padded with spaces too.

"padded with spaces"?  Why?  It doesn't matter what is in the gap.

--- MaltEd/2 1.0.b6