<s>
The	O
Template	B-Language
Toolkit	I-Language
(	O
TT	O
)	O
is	O
a	O
template	B-Language
engine	I-Language
used	O
primarily	O
for	O
building	O
web	O
sites	O
,	O
but	O
is	O
also	O
suitable	O
for	O
creating	O
any	O
type	O
of	O
digital	B-Protocol
document	I-Protocol
,	O
such	O
as	O
a	O
PDF	B-Application
or	O
LaTeX	B-Application
file	O
.	O
</s>
<s>
Template	B-Language
Toolkit	I-Language
is	O
based	O
on	O
a	O
mini-language	B-Language
and	O
does	O
not	O
allow	O
direct	O
Perl	B-Language
in	O
its	O
templates	B-Language
by	O
default	O
,	O
unlike	O
some	O
competing	O
products	O
(	O
e.g.	O
</s>
<s>
This	O
forces	O
developers	O
to	O
separate	O
business	B-Architecture
logic	I-Architecture
into	O
Perl	B-Language
libraries	B-Library
,	O
leaving	O
only	O
presentation	B-General_Concept
logic	I-General_Concept
in	O
their	O
templates	B-Language
.	O
</s>
<s>
It	O
is	O
written	O
in	O
Perl	B-Language
,	O
with	O
some	O
popular	O
accessories	O
in	O
C	B-Language
.	O
It	O
is	O
released	O
under	O
a	O
free	B-License
software	I-License
licence	I-License
(	O
Perl	B-License
Artistic	I-License
Licence	I-License
or	O
GPL	B-License
)	O
.	O
</s>
<s>
TT	O
is	O
used	O
as	O
a	O
templating	O
system	O
for	O
various	O
Perl	B-Language
application	O
frameworks	O
,	O
including	O
the	O
Catalyst	B-Language
MVC	I-Language
Framework	I-Language
,	O
CGI::Application	O
and	O
the	O
Maypole	O
framework	O
.	O
</s>
<s>
The	O
Template	B-Language
Toolkit	I-Language
was	O
written	O
by	O
Andy	O
Wardley	O
.	O
</s>
<s>
The	O
"	O
prototype	O
"	O
for	O
TT	O
(	O
the	O
Text::MetaText	O
Perl	B-Language
module	O
)	O
was	O
released	O
in	O
1996	O
.	O
</s>
