<s>
Augeas	B-Library
is	O
a	O
free	B-Application
software	I-Application
configuration-management	O
library	O
,	O
written	O
in	O
the	O
C	B-Language
programming	I-Language
language	I-Language
.	O
</s>
<s>
It	O
is	O
licensed	O
under	O
the	O
terms	O
of	O
the	O
GNU	B-Application
Lesser	I-Application
General	I-Application
Public	I-Application
License	I-Application
.	O
</s>
<s>
Augeas	B-Library
uses	O
programs	O
called	O
lenses	O
(	O
in	O
reference	O
to	O
the	O
Harmony	O
Project	O
)	O
to	O
map	O
a	O
filesystem	O
to	O
an	O
XML	B-Protocol
tree	O
which	O
can	O
then	O
be	O
parsed	O
using	O
an	O
XPath	B-Language
syntax	O
,	O
using	O
a	O
bidirectional	B-Algorithm
transformation	I-Algorithm
.	O
</s>
<s>
Writing	O
such	O
lenses	O
extends	O
the	O
amount	O
of	O
files	O
Augeas	B-Library
can	O
parse	O
.	O
</s>
<s>
Augeas	B-Library
has	O
bindings	O
for	O
Python	B-Language
,	O
Ruby	B-Language
,	O
OCaml	B-Language
,	O
Perl	B-Language
,	O
Haskell	B-Language
,	O
Java	B-Language
,	O
PHP	B-Application
,	O
and	O
Tcl	B-Operating_System
.	O
</s>
