<s>
PmWiki	B-Language
is	O
wiki	B-Protocol
software	I-Protocol
written	O
by	O
Patrick	O
R	O
.	O
Michaud	O
in	O
the	O
PHP	B-Application
programming	I-Application
language	I-Application
,	O
</s>
<s>
It	O
is	O
free	B-Application
software	I-Application
,	O
licensed	O
under	O
the	O
terms	O
of	O
the	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
.	O
</s>
<s>
PmWiki	B-Language
software	O
focuses	O
on	O
ease-of-use	O
,	O
so	O
people	O
with	O
little	O
IT	O
or	O
wiki	B-Protocol
experience	O
will	O
be	O
able	O
to	O
put	O
it	O
to	O
use	O
.	O
</s>
<s>
The	O
PmWiki	B-Language
philosophy	O
favours	O
writers	O
over	O
readers	O
,	O
does	O
n't	O
try	O
to	O
replace	O
HTML	O
and	O
supports	O
collaborative	O
maintenance	O
of	O
public	O
web	O
pages	O
.	O
</s>
<s>
Besides	O
the	O
usual	O
collaborative	O
features	O
such	O
as	O
content	O
management	O
and	O
knowledge	O
base	O
,	O
PmWiki	B-Language
has	O
been	O
used	O
by	O
companies	O
or	O
groups	O
as	O
an	O
internal	O
communication	O
platform	O
with	O
task	O
management	O
and	O
meeting	O
archives	O
.	O
</s>
<s>
The	O
PmWiki	B-Language
wiki	B-Protocol
markup	O
shares	O
similarities	O
with	O
MediaWiki	B-Application
(	O
used	O
by	O
Wikipedia	O
)	O
and	O
has	O
a	O
large	O
number	O
of	O
features	O
not	O
found	O
in	O
other	O
wiki	B-Protocol
engines	I-Protocol
however	O
its	O
primary	O
goal	O
is	O
to	O
help	O
with	O
the	O
collaborative	O
maintenance	O
of	O
websites	O
.	O
</s>
<s>
The	O
PmWiki	B-Language
markup	O
engine	O
is	O
highly	O
customizable	O
,	O
allowing	O
adding	O
,	O
modifying	O
or	O
disabling	O
markup	O
rules	O
,	O
and	O
it	O
can	O
support	O
other	O
markup	O
languages	O
.	O
</s>
<s>
PmWiki	B-Language
uses	O
regular	O
files	O
to	O
store	O
content	O
.	O
</s>
<s>
Each	O
page	O
of	O
the	O
wiki	B-Protocol
is	O
stored	O
in	O
its	O
own	O
file	O
on	O
the	O
web	O
server	O
.	O
</s>
<s>
Pages	O
are	O
stored	O
in	O
ASCII	O
or	O
Unicode	O
format	O
and	O
may	O
be	O
edited	O
directly	O
by	O
the	O
wiki	B-Protocol
administrator	O
.	O
</s>
<s>
PmWiki	B-Language
is	O
designed	O
to	O
be	O
able	O
to	O
store	O
and	O
retrieve	O
the	O
pages	O
 '	O
text	O
and	O
metadata	O
on	O
various	O
systems	O
and	O
formats	O
.	O
</s>
<s>
However	O
,	O
via	O
plug-ins	O
,	O
PmWiki	B-Language
can	O
use	O
MySQL	O
or	O
SQLite	O
databases	O
for	O
data	O
storage	O
.	O
</s>
<s>
PmWiki	B-Language
supports	O
"	O
attachments	O
"	O
(	O
uploads	O
:	O
images	O
or	O
other	O
files	O
)	O
to	O
its	O
wiki	B-Protocol
pages	O
.	O
</s>
<s>
The	O
uploads	O
can	O
be	O
attached	O
to	O
a	O
group	O
of	O
pages	O
(	O
default	O
)	O
,	O
individually	O
to	O
each	O
page	O
,	O
or	O
to	O
the	O
whole	O
wiki	B-Protocol
,	O
depending	O
on	O
the	O
content	O
needs	O
and	O
structure	O
.	O
</s>
<s>
There	O
are	O
PmWiki	B-Language
recipes	O
allowing	O
an	O
easier	O
management	O
of	O
the	O
uploaded	O
files	O
,	O
e.g.	O
</s>
<s>
In	O
PmWiki	B-Language
,	O
wiki	B-Protocol
pages	O
are	O
contained	O
within	O
"	O
wiki	B-Protocol
groups	O
"	O
(	O
or	O
"	O
namespaces	O
"	O
)	O
.	O
</s>
<s>
Each	O
wiki	B-Protocol
group	O
can	O
have	O
its	O
own	O
configuration	O
options	O
,	O
plug-ins	O
,	O
access	O
control	O
,	O
skin	O
,	O
sidebar	O
(	O
menu	O
)	O
,	O
language	O
of	O
the	O
content	O
and	O
of	O
the	O
interface	O
.	O
</s>
<s>
By	O
default	O
,	O
PmWiki	B-Language
allows	O
exactly	O
one	O
hierarchical	O
level	O
of	O
the	O
pages	O
(	O
"	O
WikiGroup/WikiPage	O
"	O
)	O
,	O
but	O
through	O
recipes	O
,	O
it	O
is	O
possible	O
to	O
have	O
a	O
flat	O
structure	O
(	O
no	O
wiki	B-Protocol
groups	O
)	O
,	O
multiple	O
nested	O
groups	O
,	O
or	O
sub-pages	O
.	O
</s>
<s>
Special	O
wiki	B-Protocol
groups	O
are	O
"	O
PmWiki	B-Language
"	O
,	O
Site	O
,	O
SiteAdmin	O
and	O
Category	O
which	O
contain	O
the	O
documentation	O
and	O
some	O
configuration	O
templates	O
.	O
</s>
<s>
PmWiki	B-Language
offers	O
a	O
skin	O
template	O
scheme	O
that	O
makes	O
it	O
possible	O
to	O
change	O
the	O
look	O
and	O
feel	O
of	O
the	O
wiki	B-Protocol
or	O
website	O
with	O
a	O
high	O
degree	O
of	O
flexibility	O
in	O
both	O
functionality	O
and	O
appearance	O
.	O
</s>
<s>
PmWiki	B-Language
permits	O
users	O
and	O
administrators	O
to	O
establish	O
password	O
protection	O
for	O
individual	O
pages	O
,	O
groups	O
of	O
pages	O
or	O
the	O
entire	O
site	O
.	O
</s>
<s>
The	O
out-of-the	O
box	O
installation	O
uses	O
"	O
shared	O
passwords	O
"	O
rather	O
than	O
login	O
names	O
,	O
but	O
a	O
built-in	O
option	O
can	O
enable	O
a	O
sophisticated	O
user/group	O
based	O
access	O
control	O
system	O
on	O
pages	O
,	O
groups	O
of	O
pages	O
or	O
the	O
whole	O
wiki	B-Protocol
.	O
</s>
<s>
PmWiki	B-Language
can	O
use	O
passwords	O
from	O
config	O
files	O
,	O
special	O
wiki	B-Protocol
pages	O
,	O
.htpasswd/.htgroup	O
files	O
.	O
</s>
<s>
LDAP	B-Protocol
,	O
forum	O
databases	O
etc	O
.	O
</s>
<s>
PmWiki	B-Language
follows	O
a	O
design	O
philosophy	O
with	O
the	O
main	O
objectives	O
of	O
ease	O
of	O
installation	O
,	O
maintainability	O
,	O
and	O
keeping	O
non-required	O
features	O
out	O
of	O
the	O
core	O
distribution	O
of	O
the	O
software	O
.	O
</s>
<s>
PmWiki	B-Language
's	O
design	O
encourages	O
customization	O
with	O
a	O
wide	O
selection	O
of	O
custom	O
extensions	O
,	O
known	O
as	O
"	O
recipes	O
"	O
available	O
from	O
the	O
PmWiki	B-Language
Cookbook	O
.	O
</s>
<s>
Creating	O
and	O
maintaining	O
extensions	O
and	O
custom	O
installations	O
is	O
easy	O
thanks	O
to	O
a	O
number	O
of	O
well	O
documented	O
hooks	O
in	O
the	O
wiki	B-Protocol
engine	I-Protocol
.	O
</s>
<s>
Prerequisites	O
for	O
running	O
the	O
PmWiki	B-Language
wiki	B-Protocol
engine	I-Protocol
:	O
</s>
<s>
Any	O
webserver	O
(	O
or	O
hosting	O
plan	O
)	O
that	O
can	O
run	O
PHP	B-Application
scripts	I-Application
(	O
e.g.	O
</s>
<s>
Apache	B-Application
HTTP	I-Application
Server	I-Application
,	O
Microsoft	O
Microsoft	B-Application
IIS	I-Application
,	O
Lighttpd	B-Protocol
,	O
Hiawatha	B-Application
,	O
Cherokee	B-Language
)	O
.	O
</s>
<s>
There	O
is	O
a	O
"	O
recipe	O
"	O
to	O
allow	O
running	O
PmWiki	B-Language
"	O
Standalone	O
"	O
,	O
without	O
a	O
webserver	O
,	O
for	O
example	O
from	O
a	O
Flash	O
USB	O
stick	O
.	O
</s>
<s>
PmWiki	B-Language
was	O
written	O
by	O
the	O
university	O
professor	O
and	O
Perl	B-Application
6	I-Application
developer	O
Patrick	O
R	O
.	O
Michaud	O
,	O
who	O
owns	O
a	O
trademark	O
on	O
the	O
name	O
"	O
PmWiki	B-Language
"	O
.	O
</s>
<s>
A	O
number	O
of	O
other	O
developers	O
and	O
users	O
write	O
,	O
maintain	O
and	O
discuss	O
"	O
recipes	O
"	O
(	O
special	O
purpose	O
configurations	O
,	O
add-ons	O
,	O
or	O
plug-ins	O
)	O
in	O
the	O
PmWiki	B-Language
Cookbook	O
and	O
"	O
skins	O
"	O
(	O
special	O
purpose	O
alteration	O
to	O
the	O
look	O
and	O
feel	O
of	O
pages	O
)	O
.	O
</s>
<s>
The	O
following	O
books	O
mention	O
PmWiki	B-Language
or	O
have	O
dedicated	O
chapters	O
or	O
sections	O
:	O
</s>
<s>
Ebersbach	O
,	O
Glaser	O
,	O
Heigl	O
,	O
Wiki	B-Protocol
:	O
Kooperation	O
Im	O
Web	O
,	O
</s>
<s>
LXer	O
,	O
Framasoft	O
,	O
PmWiki	B-Language
,	O
September	O
2004	O
,	O
December	O
2010	O
(	O
French	O
)	O
Linuxfr''	O
.	O
</s>
<s>
The	O
page	O
PmWiki	B-Language
References	O
lists	O
publications	O
about	O
PmWiki	B-Language
in	O
various	O
languages	O
.	O
</s>
