Editing Gap buffer (section)

==Example==

Below are some examples of operations with buffer gaps.  The gap is represented by the empty space between the square brackets.  This representation is a bit misleading: in a typical implementation, the endpoints of the gap are tracked using [[pointer (computer programming)|pointer]]s or array indices, and the contents of the gap are ignored; this allows, for example, deletions to be done by adjusting a pointer without changing the text in the buffer.

Initial state:

 This is the way [                     ]out.

User inserts some new text:

 This is the way the world started [   ]out.

User moves the cursor before "started"; system moves "started " from the first buffer to the second buffer.

 This is the way the world [   ]started out.

User adds text filling the gap; system creates new gap:

 This is the way the world as we know it [                   ]started out.