<s>
Nokogiri	B-General_Concept
is	O
an	O
open	B-Application
source	I-Application
software	I-Application
library	O
to	O
parse	O
HTML	B-Language
and	O
XML	B-Protocol
in	O
Ruby	B-Language
.	O
</s>
<s>
It	O
depends	O
on	O
libxml2	B-Application
and	O
libxslt	B-Language
to	O
provide	O
its	O
functionality	O
.	O
</s>
<s>
It	O
is	O
available	O
for	O
ruby	B-Language
as	O
well	O
as	O
java	B-Language
through	O
Jruby	B-Language
.	O
</s>
<s>
It	O
provides	O
fast	O
and	O
standards-compliant	O
parser	B-Language
by	O
relying	O
on	O
native	O
parsers	B-Language
like	O
libxml2	B-Application
(	O
CRuby	B-Language
)	O
and	O
xerces	B-Language
(	O
JRuby	B-Language
)	O
.	O
</s>
<s>
It	O
is	O
one	O
of	O
the	O
most	O
downloaded	O
Ruby	B-Application
gems	I-Application
,	O
having	O
been	O
downloaded	O
over	O
550	O
million	O
times	O
from	O
the	O
rubygems.org	O
repository	O
.	O
</s>
<s>
Enterprise	O
support	O
is	O
available	O
through	O
tidelift	O
,	O
a	O
paid	O
subscription	O
model	O
,	O
offering	O
commercial	O
support	O
for	O
open	B-Application
source	I-Application
applications	O
.	O
</s>
