<s>
Dialog	B-Device
is	O
an	O
application	O
used	O
in	O
shell	B-Language
scripts	I-Language
which	O
displays	O
text	B-Application
user	I-Application
interface	I-Application
widgets	O
.	O
</s>
<s>
It	O
uses	O
the	O
curses	B-Device
or	O
ncurses	B-Language
library	O
.	O
</s>
<s>
The	O
latter	O
provides	O
users	O
with	O
the	O
ability	O
to	O
use	O
a	O
mouse	O
,	O
e.g.	O
,	O
in	O
an	O
xterm	B-Language
.	O
</s>
<s>
Dialog	B-Device
was	O
created	O
by	O
Savio	O
Lam	O
(	O
first	O
reported	O
version	O
0.3	O
was	O
in	O
1994	O
)	O
.	O
</s>
<s>
Since	O
1999	O
it	O
has	O
been	O
maintained	O
(	O
and	O
rewritten	O
)	O
by	O
Thomas	B-Application
Dickey	I-Application
.	O
</s>
<s>
At	O
least	O
one	O
fork	B-Application
exists	O
,	O
</s>
<s>
a	O
FreeBSD-only	O
split	O
into	O
application	O
and	O
library	O
in	O
late	O
1994	O
.	O
</s>
<s>
One	O
might	O
also	O
consider	O
lxdialog	O
(	O
part	O
of	O
menuconfig	B-Application
)	O
,	O
except	O
that	O
it	O
has	O
been	O
reduced	O
to	O
fragments	O
that	O
can	O
no	O
longer	O
run	O
dialog	B-Device
scripts	O
.	O
</s>
<s>
There	O
are	O
several	O
programs	O
inspired	O
by	O
dialog	B-Device
;	O
not	O
all	O
read	O
the	O
same	O
scripts	O
.	O
</s>
<s>
The	O
most	O
well-known	O
are	O
Xdialog	O
and	O
whiptail	B-Language
.	O
</s>
