<s>
Alphatk	B-Language
is	O
a	O
text	B-Application
editor	I-Application
that	O
was	O
originally	O
inspired	O
by	O
the	O
Mac	O
OS-only	O
editor	O
,	O
"	O
Alpha	O
"	O
,	O
which	O
was	O
written	O
in	O
C	B-Language
,	O
but	O
Alphatk	B-Language
was	O
rewritten	O
in	O
Tcl	B-Operating_System
to	O
run	O
on	O
any	O
platform	B-Device
that	O
Tk	B-Application
runs	O
on	O
:	O
Windows	B-Application
,	O
Unix	B-Application
,	O
and	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
.	O
</s>
<s>
Alphatk	B-Language
is	O
most	O
useful	O
for	O
:	O
</s>
<s>
programmers	B-Application
of	O
more	O
than	O
40	O
different	O
supported	O
programming	O
languages	O
.	O
</s>
<s>
those	O
editing	O
HTML	B-Language
source	O
files	O
.	O
</s>
<s>
Called	O
"	O
a	O
more	O
pleasant	O
alternative	O
to	O
Emacs	B-Application
"	O
,	O
Alphatk	B-Language
has	O
very	O
rich	O
features	O
to	O
aid	O
in	O
writing	O
and	O
editing	O
of	O
the	O
supported	O
files	O
types	O
.	O
</s>
<s>
As	O
well	O
as	O
being	O
useful	O
for	O
creating	O
and	O
editing	O
such	O
documents	O
,	O
Alphatk	B-Language
provides	O
a	O
host	O
of	O
facilities	O
for	O
communicating	O
with	O
compilers	B-Language
,	O
diff	B-Application
,	O
patch	O
,	O
version	B-Architecture
control	I-Architecture
systems	I-Architecture
,	O
FTP	B-Protocol
sites	O
,	O
websites	O
,	O
etc	O
.	O
</s>
<s>
A	O
large	O
part	O
of	O
Alphatk	B-Language
's	O
functionality	O
is	O
provided	O
by	O
the	O
open-source	B-Application
library	B-Library
of	I-Library
code	I-Library
.	O
</s>
