<s>
xdvi	B-General_Concept
is	O
an	O
open-source	B-License
computer	B-Application
program	I-Application
written	O
by	O
Paul	O
Vojta	O
for	O
displaying	O
TeX-produced	O
.dvi	B-Application
files	O
under	O
the	O
X	B-Operating_System
Window	I-Operating_System
System	I-Operating_System
on	O
Unix	B-Application
,	O
including	O
Linux	B-Application
.	O
</s>
<s>
The	O
xdvi	B-General_Concept
interface	O
has	O
a	O
set	O
of	O
GUI	O
controls	O
and	O
a	O
window	O
displaying	O
a	O
single	O
page	O
of	O
the	O
DVI	B-Application
document	O
.	O
</s>
<s>
Every	O
time	O
a	O
new	O
version	O
of	O
the	O
.dvi	B-Application
file	O
is	O
saved	O
,	O
xdvi	B-General_Concept
automatically	O
refreshes	O
the	O
display	O
with	O
the	O
new	O
version	O
.	O
</s>
<s>
xdvi	B-General_Concept
is	O
equipped	O
with	O
"	O
magnifying	O
glasses	O
"	O
for	O
viewing	O
close-ups	O
of	O
portions	O
of	O
the	O
page	O
by	O
clicking	O
on	O
a	O
mouse	B-Device
button	O
while	O
the	O
mouse	B-Device
cursor	O
is	O
over	O
the	O
part	O
of	O
the	O
page	O
to	O
be	O
viewed	O
.	O
</s>
<s>
xdvi	B-General_Concept
has	O
a	O
set	O
of	O
keyboard	O
shortcuts	O
for	O
bypassing	O
the	O
pointer	O
control	O
.	O
</s>
<s>
xdvi	B-General_Concept
can	O
be	O
used	O
with	O
the	O
editor	O
emacs	B-Application
to	O
display	O
the	O
.dvi	B-Application
file	O
of	O
the	O
TeX	B-Application
file	O
currently	O
being	O
edited	O
.	O
</s>
<s>
There	O
also	O
exists	O
an	O
ability	O
to	O
perform	O
a	O
reverse	O
search	O
,	O
in	O
which	O
a	O
user	O
clicks	O
on	O
a	O
location	O
in	O
the	O
dvi	B-Application
file	O
and	O
emacs	B-Application
jumps	O
to	O
the	O
associated	O
location	O
in	O
the	O
TeX	B-Application
file	O
.	O
</s>
