<s>
CommonLoops	B-Language
(	O
the	O
Common	B-Language
Lisp	I-Language
Object-Oriented	B-Language
Programming	I-Language
System	I-Language
;	O
an	O
acronym	O
reminiscent	O
of	O
the	O
earlier	O
Lisp	B-Language
OO	O
system	O
"	O
Loops	O
"	O
for	O
the	O
Interlisp-D	B-Language
system	O
)	O
is	O
an	O
early	O
programming	O
language	O
which	O
extended	O
Common	B-Language
Lisp	I-Language
to	O
include	O
Object-oriented	B-Language
programming	I-Language
functionality	O
and	O
is	O
a	O
dynamic	B-Language
object	B-Language
system	I-Language
which	O
differs	O
from	O
the	O
OOP	O
facilities	O
found	O
in	O
static	O
languages	O
such	O
as	O
C++	B-Language
or	O
Java	B-Language
.	O
</s>
<s>
Like	O
New	B-Language
Flavors	I-Language
,	O
CommonLoops	B-Language
supported	O
multiple	B-Application
inheritance	I-Application
,	O
generic	O
functions	O
and	O
method	O
combination	O
.	O
</s>
<s>
CommonLoops	B-Language
also	O
supported	O
multi-methods	O
and	O
made	O
use	O
of	O
metaobjects	O
.	O
</s>
<s>
CommonLoops	B-Language
and	O
New	B-Language
Flavors	I-Language
were	O
the	O
primary	O
ancestors	O
of	O
CLOS	B-Application
.	O
</s>
<s>
CommonLoops	B-Language
was	O
supported	O
by	O
a	O
portable	O
implementation	O
known	O
as	O
Portable	O
CommonLoops	B-Language
(	O
PCL	O
)	O
which	O
ran	O
on	O
all	O
Common	B-Language
Lisp	I-Language
implementations	O
of	O
the	O
day	O
.	O
</s>
