Note that images embedded in the buffer occupy 1 character slot, so
this function may actually move onto an image instead of a character,
if you have images in your buffer. If @iter is the end iterator or
one character before it, @iter will now point at the end iterator,
and this function returns %FALSE for convenience when writing loops.
Moves @iter forward by one character offset.
Note that images embedded in the buffer occupy 1 character slot, so this function may actually move onto an image instead of a character, if you have images in your buffer. If @iter is the end iterator or one character before it, @iter will now point at the end iterator, and this function returns %FALSE for convenience when writing loops.