<s>
Virtaal	B-Language
is	O
a	O
computer-assisted	B-Application
translation	I-Application
tool	I-Application
written	O
in	O
the	O
Python	B-Language
programming	I-Language
language	I-Language
.	O
</s>
<s>
It	O
is	O
free	B-Application
software	I-Application
developed	O
and	O
maintained	O
by	O
Translate.org.za	O
.	O
</s>
<s>
Virtaal	B-Language
is	O
built	O
using	O
the	O
Translate	B-Language
Toolkit	I-Language
allowing	O
it	O
to	O
process	O
a	O
number	O
of	O
translation	O
and	O
localisation	B-General_Concept
formats	O
.	O
</s>
<s>
The	O
key	O
principle	O
behind	O
the	O
design	O
of	O
Virtaal	B-Language
is	O
the	O
optimisation	O
of	O
the	O
interface	B-Application
for	O
the	O
localiser	O
.	O
</s>
<s>
Work	O
on	O
Virtaal	B-Language
began	O
in	O
2007	O
with	O
an	O
initial	O
0.1	O
release	O
made	O
to	O
a	O
small	O
number	O
of	O
open-source	B-Application
localisers	O
.	O
</s>
<s>
The	O
name	O
Virtaal	B-Language
,	O
pronounced	O
,	O
is	O
a	O
play	O
on	O
words	O
.	O
</s>
<s>
Virtaal	B-Language
works	O
directly	O
with	O
any	O
of	O
the	O
bilingual	O
(	O
containing	O
both	O
source	O
and	O
target	O
language	O
)	O
files	O
understood	O
by	O
the	O
Translate	B-Language
Toolkit	I-Language
.	O
</s>
<s>
This	O
would	O
include	O
XLIFF	O
,	O
Gettext	B-Application
PO	O
and	O
MO	O
,	O
various	O
Qt	B-Language
files	O
(	O
.qm	O
,	O
.ts	O
,	O
.qph	O
)	O
,	O
Wordfast	B-Language
translation	O
memory	O
,	O
TBX	O
,	O
TMX	B-Language
and	O
OmegaT	B-Language
glossaries	O
.	O
</s>
