<s>
CGI.pm	B-Language
is	O
a	O
large	O
and	O
once	O
widely	O
used	O
Perl	B-Language
module	I-Language
for	O
programming	B-General_Concept
Common	B-Language
Gateway	I-Language
Interface	I-Language
(	O
CGI	B-Language
)	O
web	O
applications	O
,	O
providing	O
a	O
consistent	O
API	B-Application
for	O
receiving	O
and	O
processing	O
user	O
input	O
.	O
</s>
<s>
There	O
are	O
also	O
functions	O
for	O
producing	O
HTML	B-Language
or	O
XHTML	B-Language
output	O
,	O
but	O
these	O
are	O
now	O
unmaintained	O
and	O
are	O
to	O
be	O
avoided	O
.	O
</s>
<s>
CGI.pm	B-Language
was	O
a	O
core	O
Perl	B-Language
module	I-Language
but	O
has	O
been	O
removed	O
as	O
of	O
v5.22	O
of	O
Perl	B-Language
.	O
</s>
<s>
The	O
module	B-Language
was	O
written	O
by	O
Lincoln	O
Stein	O
and	O
is	O
now	O
maintained	O
by	O
Lee	O
Johnson	O
.	O
</s>
<s>
Here	O
is	O
a	O
simple	O
CGI	B-Language
page	O
,	O
written	O
in	O
Perl	B-Language
using	O
CGI.pm	B-Language
(	O
in	O
object-oriented	B-Language
style	O
)	O
:	O
</s>
<s>
This	O
sample	O
makes	O
use	O
of	O
pm	O
's	O
object-oriented	B-Language
abilities	O
;	O
it	O
can	O
also	O
be	O
done	O
by	O
calling	O
functions	O
directly	O
,	O
without	O
the	O
,	O
however	O
the	O
necessary	O
functions	O
must	O
be	O
imported	O
into	O
the	O
namespace	O
of	O
the	O
script	O
that	O
requires	O
access	O
to	O
those	O
functions	O
:	O
</s>
<s>
Note	O
:	O
in	O
many	O
examples	O
,	O
short	O
for	O
query	O
,	O
is	O
used	O
to	O
store	O
a	O
CGI	B-Language
object	O
.	O
</s>
