Suppose a dvi file such as "myfile.dvi" is open in Yap,
and then I do
"yap -1 -s 200myfile.tex myfile.dvi".
At this point, Yap moves to a new location in the dvi
file, corresponding to the requested source-special. It
would be convenient if I could then return to the
previous location by clicking the "back" navigation
button on the toolbar.
The present behaviour of the "back/forward" buttons is
that they keep track of the history of the hypertex
links that have been followed, but not the
source-specials. From the point of view of the user,
who uses both the text editor and Yap to navigate a
large document, the distinction between hypertex links
and source-specials is small.