<s>
Coco/R	B-Application
is	O
a	O
compiler	B-Language
generator	I-Language
that	O
takes	O
wirth	O
syntax	O
notation	O
grammars	O
of	O
a	O
source	O
language	O
and	O
generates	O
a	O
scanner	B-Application
and	O
a	O
parser	B-Language
for	O
that	O
language	O
.	O
</s>
<s>
The	O
scanner	B-Application
works	O
as	O
a	O
deterministic	B-General_Concept
finite	I-General_Concept
automaton	I-General_Concept
.	O
</s>
<s>
In	O
addition	O
to	O
terminal	O
symbols	O
the	O
scanner	B-Application
can	O
also	O
recognize	O
pragmas	O
,	O
which	O
are	O
tokens	O
that	O
are	O
not	O
part	O
of	O
the	O
syntax	O
but	O
can	O
occur	O
anywhere	O
in	O
the	O
input	O
stream	O
(	O
e.g.	O
</s>
<s>
The	O
parser	B-Language
uses	O
recursive	B-Application
descent	I-Application
;	O
LL(1 )	O
conflicts	O
can	O
be	O
resolved	O
by	O
either	O
a	O
multi-symbol	O
lookahead	O
or	O
by	O
semantic	O
checks	O
.	O
</s>
<s>
Thus	O
the	O
class	O
of	O
accepted	O
grammars	O
is	O
LL(k )	O
for	O
an	O
arbitrary	O
k	O
.	O
Fuzzy	B-Algorithm
parsing	I-Algorithm
is	O
supported	O
by	O
so-called	O
ANY	O
symbols	O
that	O
match	O
complementary	O
sets	O
of	O
tokens	O
.	O
</s>
<s>
Semantic	O
actions	O
are	O
written	O
in	O
the	O
same	O
language	O
as	O
the	O
generated	O
scanner	B-Application
and	O
parser	B-Language
.	O
</s>
<s>
The	O
parser	B-Language
's	O
error	O
handling	O
can	O
be	O
tuned	O
by	O
specifying	O
synchronization	O
points	O
and	O
"	O
weak	O
symbols	O
"	O
in	O
the	O
grammar	O
.	O
</s>
<s>
Coco/R	B-Application
checks	O
the	O
grammar	O
for	O
completeness	O
,	O
consistency	O
,	O
non-redundancy	O
as	O
well	O
as	O
for	O
LL(1 )	O
conflicts	O
.	O
</s>
<s>
There	O
are	O
versions	O
of	O
Coco/R	B-Application
for	O
Java	B-Language
,	O
C#	B-Application
,	O
C++	B-Language
,	O
Pascal	B-Application
,	O
Modula-2	B-Language
,	O
Modula-3	B-Language
,	O
Delphi	B-Language
,	O
VB.NET	B-Language
,	O
Python	B-Language
,	O
Ruby	B-Language
and	O
other	O
programming	O
languages	O
.	O
</s>
<s>
The	O
latest	O
versions	O
from	O
the	O
University	O
of	O
Linz	O
are	O
those	O
for	O
C#	B-Application
,	O
Java	B-Language
and	O
C++	B-Language
.	O
</s>
<s>
For	O
the	O
Java	B-Language
version	O
,	O
there	O
is	O
an	O
Eclipse	B-Application
plug-in	O
and	O
for	O
C#	B-Application
,	O
a	O
Visual	O
Studio	O
plug-in	O
.	O
</s>
<s>
There	O
are	O
also	O
sample	O
grammars	O
for	O
Java	B-Language
and	O
C#	B-Application
.	O
</s>
<s>
Coco/R	B-Application
was	O
originally	O
developed	O
at	O
the	O
ETHZ	O
and	O
moved	O
with	O
Hanspeter	O
Mössenböck	O
to	O
University	O
of	O
Linz	O
when	O
he	O
got	O
his	O
appointment	O
there	O
.	O
</s>
<s>
Coco/R	B-Application
is	O
distributed	O
under	O
the	O
terms	O
of	O
a	O
slightly	O
relaxed	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
.	O
</s>
