<s>
and	O
Oberon-2	B-Language
.	O
</s>
<s>
It	O
bears	O
the	O
name	O
of	O
the	O
language	O
Pascal	B-Application
and	O
preserves	O
its	O
heritage	O
,	O
but	O
is	O
incompatible	O
with	O
Pascal	B-Application
.	O
</s>
<s>
Instead	O
,	O
it	O
is	O
a	O
minor	O
variant	O
and	O
refinement	O
of	O
Oberon-2	B-Language
with	O
a	O
more	O
expressive	O
type	O
system	O
and	O
built-in	O
string	O
support	O
.	O
</s>
<s>
Component	B-Language
Pascal	I-Language
was	O
originally	O
named	O
Oberon/L	O
,	O
and	O
was	O
designed	O
and	O
supported	O
by	O
a	O
small	O
ETH	O
Zürich	O
spin-off	O
company	O
named	O
Oberon	B-Language
microsystems	O
.	O
</s>
<s>
They	O
developed	O
an	O
integrated	B-Application
development	I-Application
environment	I-Application
(	O
IDE	O
)	O
named	O
BlackBox	B-Application
Component	I-Application
Builder	I-Application
.	O
</s>
<s>
The	O
first	O
version	O
of	O
the	O
IDE	O
was	O
released	O
in	O
1994	O
,	O
as	O
Oberon/F	O
.	O
</s>
<s>
At	O
the	O
time	O
,	O
it	O
presented	O
a	O
novel	O
approach	O
to	O
graphical	B-Application
user	I-Application
interface	I-Application
(	O
GUI	B-Application
)	O
construction	O
based	O
on	O
editable	O
forms	O
,	O
where	O
fields	O
and	O
command	O
buttons	O
are	O
linked	O
to	O
exported	O
variables	O
and	O
executable	O
procedures	O
.	O
</s>
<s>
This	O
approach	O
bears	O
some	O
similarity	O
to	O
the	O
code-behind	O
way	O
used	O
in	O
Microsoft	O
's	O
.NET	B-Application
3.0	O
to	O
access	O
code	O
in	O
Extensible	B-Device
Application	I-Device
Markup	I-Device
Language	I-Device
(	O
XAML	B-Device
)	O
,	O
which	O
was	O
released	O
in	O
2008	O
.	O
</s>
<s>
An	O
open-source	B-Application
software	I-Application
implementation	O
of	O
Component	B-Language
Pascal	I-Language
exists	O
for	O
the	O
.NET	B-Application
and	O
Java	B-Language
virtual	I-Language
machine	I-Language
(	O
JVM	B-Language
)	O
platforms	O
,	O
from	O
the	O
Gardens	O
Point	O
team	O
around	O
John	O
Gough	O
at	O
Queensland	O
University	O
of	O
Technology	O
in	O
Australia	O
.	O
</s>
<s>
On	O
23	O
June	O
2004	O
Oberon	B-Language
microsystems	O
announced	O
that	O
the	O
BlackBox	B-Application
Component	I-Application
Builder	I-Application
was	O
made	O
available	O
as	O
a	O
free	O
download	O
and	O
that	O
an	O
open-source	B-Application
version	O
was	O
planned	O
.	O
</s>
<s>
The	O
beta	O
open-source	B-Application
version	O
was	O
initially	O
released	O
in	O
December	O
2004	O
and	O
updated	O
to	O
a	O
final	O
v1.5	O
release	O
in	O
December	O
2005	O
.	O
</s>
<s>
Several	O
release	O
candidates	O
for	O
v1.6	O
appeared	O
in	O
the	O
years	O
2009	O
–	O
2011	O
,	O
the	O
latest	O
one	O
(	O
1.6rc6	O
)	O
appeared	O
on	O
Oberon	B-Language
microsystems	O
web	O
pages	O
in	O
2011	O
.	O
</s>
<s>
At	O
the	O
end	O
of	O
2013	O
,	O
Oberon	B-Language
microsystems	O
released	O
the	O
final	O
release	O
1.6	O
.	O
</s>
<s>
BlackBox	O
Component	B-Language
Pascal	I-Language
uses	O
the	O
extensions	O
.odc	O
(	O
Oberon	B-Language
document	O
)	O
for	O
document	O
files	O
,	O
such	O
as	O
source	O
files	O
,	O
and	O
.osf	O
(	O
Oberon	B-Language
symbol	O
file	O
)	O
for	O
symbol	O
files	O
while	O
Gardens	O
Point	O
Component	B-Language
Pascal	I-Language
uses	O
.cp	O
for	O
source	O
and	O
.cps	O
for	O
symbol	O
files	O
.	O
</s>
<s>
BlackBox	O
Component	B-Language
Pascal	I-Language
has	O
its	O
own	O
executable	O
and	O
loadable	O
object	O
format	O
.ocf	O
(	O
Oberon	B-Language
code	O
file	O
)	O
;	O
it	O
includes	O
a	O
runtime	O
linking	O
loader	O
for	O
this	O
format	O
.	O
</s>
<s>
It	O
also	O
handles	O
user	B-Application
interface	I-Application
elements	O
in	O
editable	O
forms	O
.	O
</s>
<s>
This	O
is	O
in	O
the	O
tradition	O
of	O
the	O
Oberon	B-Language
Text	O
format	O
.	O
</s>
<s>
In	O
the	O
extended	O
Backus	O
–	O
Naur	O
form	O
,	O
only	O
34	O
grammatical	O
productions	O
are	O
needed	O
,	O
one	O
more	O
than	O
for	O
Oberon-2	B-Language
,	O
although	O
it	O
is	O
a	O
more	O
advanced	O
language	O
.	O
</s>
