<s>
DOORS	B-Language
Extension	I-Language
Language	I-Language
(	O
DXL	O
)	O
is	O
a	O
scripting	B-Language
language	I-Language
used	O
to	O
extend	O
the	O
functionality	O
of	O
IBM	O
's	O
Rational	B-Application
DOORS	I-Application
.	O
</s>
<s>
This	O
programming	O
language	O
is	O
somewhat	O
similar	O
to	O
C	B-Language
and	O
C++	B-Language
.	O
</s>
<s>
There	O
are	O
several	O
of	O
ways	O
to	O
use	O
the	O
DXL	O
in	O
the	O
Rational	B-Application
DOORS	I-Application
.	O
</s>
<s>
There	O
are	O
many	O
open	O
source	O
and	O
free	O
editors	O
like	O
Notepad++	B-Language
and	O
jEdit	B-Language
that	O
support	O
DXL	O
by	O
custom	O
properties	O
.	O
</s>
