<s>
DokuWiki	B-Protocol
is	O
a	O
wiki	B-Protocol
application	I-Protocol
licensed	O
under	O
GPLv2	O
and	O
written	O
in	O
the	O
PHP	B-Application
programming	I-Application
language	I-Application
.	O
</s>
<s>
Its	O
syntax	O
is	O
similar	O
to	O
the	O
one	O
used	O
by	O
MediaWiki	B-Application
.	O
</s>
<s>
It	O
is	O
often	O
recommended	O
as	O
a	O
more	O
lightweight	O
,	O
easier	O
to	O
customize	O
alternative	O
to	O
MediaWiki	B-Application
.	O
</s>
<s>
The	O
'	O
Doku	O
 '	O
in	O
DokuWiki	B-Protocol
is	O
short	O
for	O
Dokumentation	O
which	O
in	O
German	O
means	O
documentation	O
.	O
</s>
<s>
Because	O
DokuWiki	B-Protocol
does	O
not	O
require	O
a	O
database	O
,	O
it	O
can	O
be	O
installed	O
on	O
local	O
PCs	O
,	O
flash	O
drives	O
,	O
and	O
folders	O
synced	O
with	O
file	B-Application
hosting	I-Application
services	I-Application
(	O
Dropbox	B-Application
)	O
or	O
file	O
synchronization	O
programs	O
(	O
syncthing	B-Language
)	O
.	O
</s>
<s>
DokuWiki	B-Protocol
was	O
created	O
by	O
Andreas	O
Gohr	O
in	O
June	O
2004	O
.	O
</s>
<s>
Originally	O
DokuWiki	B-Protocol
used	O
a	O
simple	O
list	O
of	O
regular	B-Language
expressions	I-Language
to	O
transform	O
wiki	B-Protocol
syntax	O
into	O
HTML	O
.	O
</s>
<s>
A	O
big	O
step	O
forward	O
in	O
the	O
development	O
was	O
the	O
re-design	O
of	O
the	O
parser	B-Language
and	O
the	O
renderer	B-Protocol
mechanisms	O
based	O
on	O
contributions	O
by	O
Harry	O
Fuecks	O
in	O
January	O
2005	O
.	O
</s>
<s>
The	O
new	O
parser	B-Language
and	O
the	O
introduction	O
of	O
a	O
cache	O
mechanism	O
led	O
to	O
significant	O
performance	O
improvements	O
,	O
thus	O
making	O
DokuWiki	B-Protocol
usable	O
for	O
larger	O
projects	O
.	O
</s>
<s>
The	O
new	O
parser	B-Language
also	O
prepared	O
DokuWiki	B-Protocol
for	O
the	O
introduction	O
of	O
a	O
generic	O
plugin	B-Application
interface	O
which	O
simplified	O
the	O
development	O
and	O
maintenance	O
of	O
syntax-based	O
plugins	B-Application
.	O
</s>
<s>
Over	O
the	O
years	O
additional	O
plugin	B-Application
mechanisms	O
followed	O
which	O
allowed	O
3rd-party	O
developers	O
to	O
extend	O
nearly	O
all	O
aspects	O
of	O
the	O
wiki	B-Protocol
software	I-Protocol
.	O
</s>
<s>
The	O
introduction	O
of	O
DokuWiki	B-Protocol
into	O
the	O
Debian	O
and	O
Gentoo	B-Application
Linux	I-Application
distributions	O
in	O
April	O
and	O
July	O
2005	O
respectively	O
significantly	O
increased	O
the	O
visibility	O
of	O
the	O
software	O
.	O
</s>
<s>
The	O
DokuWiki	B-Protocol
logo	O
is	O
the	O
result	O
of	O
a	O
design	O
contest	O
.	O
</s>
<s>
For	O
many	O
years	O
,	O
DokuWiki	B-Protocol
's	O
source	O
code	O
was	O
managed	O
through	O
the	O
Darcs	B-Protocol
distributed	O
version	B-Architecture
control	I-Architecture
system	I-Architecture
.	O
</s>
<s>
In	O
2010	O
a	O
switch	O
to	O
Git	B-Application
was	O
made	O
,	O
making	O
use	O
of	O
GitHub	B-Application
for	O
hosting	O
.	O
</s>
<s>
Today	O
,	O
DokuWiki	B-Protocol
is	O
one	O
of	O
the	O
most	O
popular	O
wiki	B-Protocol
engines	I-Protocol
available	O
and	O
has	O
achieved	O
significant	O
usage	O
with	O
stable	O
interest	O
over	O
time	O
.	O
</s>
<s>
Version	O
Codename	O
Significant	O
changes	O
2004-07-04	O
Initial	O
DokuWiki	B-Protocol
release	O
.	O
</s>
<s>
2012-10-13	O
Adora	O
Belle	O
New	O
default	O
DokuWiki	B-Protocol
template	O
with	O
optional	O
sidebar	O
.	O
</s>
<s>
New	O
history	O
function	O
to	O
see	O
how	O
a	O
wiki	B-Protocol
looked	O
at	O
a	O
certain	O
time	O
.	O
</s>
<s>
Security	O
fix	O
for	O
AD/LDAP	O
auth	O
plugin	B-Application
.	O
</s>
<s>
2016-06-26a	O
Elenor	O
of	O
Tsort	O
New	O
authPDO	O
plugin	B-Application
;	O
authmysql	O
and	O
authpgsql	O
are	O
deprecated	O
.	O
</s>
<s>
Support	O
for	O
PHP	B-Application
's	O
builtin	O
web	O
server	O
.	O
</s>
<s>
jQuery	O
3	O
,	O
PHP	B-Application
7.1	O
support	O
and	O
PHP	B-Application
7.0	O
bug	O
fixes	O
.	O
</s>
<s>
New	O
command	O
line	O
plugins	B-Application
.	O
</s>
<s>
PHP	B-Application
7.2	O
support	O
and	O
improvements	O
for	O
PHP	B-Application
7.3	O
support	O
.	O
</s>
<s>
2020-07-29	O
Hogfather	O
PHP	B-Application
7.4	O
compatibility	O
and	O
some	O
preparations	O
for	O
the	O
upcoming	O
PHP8	O
.	O
</s>
<s>
2022-07-31	O
Igor	O
Drop	O
support	O
for	O
PHP	B-Application
versions	O
earlier	O
than	O
7.2	O
.	O
</s>
<s>
Since	O
2011	O
,	O
releases	O
are	O
named	O
after	O
Discworld	B-Application
characters	O
.	O
</s>
<s>
DokuWiki	B-Protocol
requires	O
only	O
a	O
webserver	O
and	O
PHP	B-Application
;	O
no	O
database	O
is	O
needed	O
.	O
</s>
<s>
Additional	O
plugins	B-Application
may	O
have	O
additional	O
requirements	O
.	O
</s>
<s>
DokuWiki	B-Protocol
stores	O
all	O
versions	O
of	O
each	O
wiki	B-Protocol
page	O
,	O
allowing	O
the	O
user	O
to	O
compare	O
the	O
current	O
version	O
with	O
any	O
older	O
version	O
.	O
</s>
<s>
The	O
difference	O
engine	O
is	O
the	O
same	O
as	O
the	O
one	O
used	O
in	O
MediaWiki	B-Application
.	O
</s>
<s>
Parallel	O
editing	O
of	O
one	O
page	O
by	O
multiple	O
users	O
is	O
prevented	O
by	O
a	O
locking	B-Application
mechanism	I-Application
.	O
</s>
<s>
Access	O
control	O
Access	O
control	O
can	O
be	O
handled	O
by	O
a	O
user	O
manager	O
,	O
which	O
allows	O
users	O
and	O
groups	O
of	O
users	O
to	O
be	O
defined	O
,	O
and	O
an	O
access	O
control	O
list	O
in	O
which	O
an	O
administrator	O
user	O
can	O
define	O
permissions	O
on	O
page	O
and	O
namespace	O
level	O
,	O
giving	O
DokuWiki	B-Protocol
more	O
fine-grained	O
control	O
than	O
Mediawiki	B-Application
.	O
</s>
<s>
Besides	O
the	O
built-in	O
user	O
management	O
,	O
DokuWiki	B-Protocol
also	O
provides	O
mechanisms	O
for	O
authentication	O
against	O
databases	O
,	O
LDAP	B-Protocol
Servers	O
and	O
Active	B-Protocol
Directory	I-Protocol
.	O
</s>
<s>
Other	O
authentication	O
mechanisms	O
are	O
available	O
as	O
plugins	B-Application
.	O
</s>
<s>
Plugins	B-Application
DokuWiki	B-Protocol
has	O
a	O
generic	O
plugin	B-Application
interface	O
which	O
simplifies	O
the	O
process	O
of	O
writing	O
and	O
maintaining	O
plugins	B-Application
.	O
</s>
<s>
There	O
are	O
~	O
1000	O
plugins	B-Application
available	O
.	O
</s>
<s>
These	O
can	O
be	O
easily	O
integrated	O
and	O
managed	O
by	O
an	O
administrator	O
user	O
with	O
the	O
help	O
of	O
the	O
plugin	B-Application
manager	O
.	O
</s>
<s>
Templates	B-Application
The	O
appearance	O
of	O
the	O
wiki	B-Protocol
can	O
be	O
defined	O
by	O
a	O
template	O
.	O
</s>
<s>
There	O
are	O
various	O
templates	B-Application
provided	O
by	O
the	O
development	O
community	O
.	O
</s>
<s>
Internationalization	B-General_Concept
and	I-General_Concept
localization	I-General_Concept
DokuWiki	B-Protocol
supports	O
Unicode	O
(	O
UTF-8	O
)	O
and	O
properly	O
handles	O
right-to-left	O
languages	O
,	O
so	O
languages	O
such	O
as	O
Chinese	O
,	O
Thai	O
,	O
and	O
Hebrew	O
can	O
be	O
displayed	O
.	O
</s>
<s>
DokuWiki	B-Protocol
can	O
be	O
configured	O
in	O
about	O
70	O
languages	O
.	O
</s>
<s>
Multilingual	O
wikis	B-Protocol
can	O
be	O
configured	O
through	O
plugins	B-Application
.	O
</s>
<s>
Users	O
can	O
contribute	O
translations	O
of	O
the	O
DokuWiki	B-Protocol
software	O
and	O
of	O
plugins	B-Application
through	O
a	O
web	O
interface	O
.	O
</s>
<s>
Caching	B-Protocol
DokuWiki	B-Protocol
uses	O
a	O
two-level	O
cache	O
mechanism	O
which	O
stores	O
the	O
parsed	O
wiki	B-Protocol
page	O
in	O
an	O
intermediate	O
serialized	O
format	O
which	O
is	O
then	O
rendered	O
to	O
the	O
desired	O
output	O
format	O
,	O
such	O
as	O
HTML5	O
.	O
</s>
<s>
The	O
two	O
levels	O
of	O
caching	B-Protocol
expire	O
on	O
different	O
conditions	O
.	O
</s>
<s>
The	O
caching	B-Protocol
helps	O
to	O
reduce	O
server	O
load	O
and	O
speeds	O
up	O
access	O
to	O
the	O
information	O
.	O
</s>
<s>
Full	B-Application
text	I-Application
search	I-Application
DokuWiki	B-Protocol
has	O
an	O
integrated	O
indexed	O
search	O
with	O
which	O
a	O
user	O
can	O
search	O
for	O
keywords	O
and	O
phrases	O
on	O
the	O
wiki	B-Protocol
.	O
</s>
<s>
Wiki	B-Protocol
markup	O
DokuWiki	B-Protocol
uses	O
a	O
simple	O
markup	O
language	O
similar	O
to	O
that	O
of	O
MediaWiki	B-Application
.	O
</s>
<s>
Like	O
MediaWiki	B-Application
it	O
makes	O
use	O
of	O
free	O
links	O
,	O
but	O
CamelCase	O
links	O
can	O
optionally	O
be	O
enabled	O
.	O
</s>
<s>
WYSIWYG	B-Application
editors	I-Application
are	O
available	O
as	O
plugins	B-Application
.	O
</s>
<s>
Some	O
independent	O
software	O
projects	O
based	O
on	O
DokuWiki	B-Protocol
have	O
been	O
created	O
.	O
</s>
<s>
These	O
projects	O
usually	O
bundle	O
the	O
DokuWiki	B-Protocol
software	O
,	O
select	O
plugins	B-Application
,	O
a	O
customized	O
design	O
and	O
sometimes	O
pre-built	O
content	O
for	O
specialized	O
use	O
cases	O
.	O
</s>
<s>
The	O
wiki	B-Protocol
is	O
used	O
by	O
the	O
professional	O
fire	O
services	O
of	O
Berlin	O
,	O
Kaiserslautern	O
,	O
Wuppertal	O
and	O
many	O
voluntary	O
fire	O
services	O
in	O
Germany	O
.	O
</s>
<s>
is	O
a	O
redistribution	O
of	O
DokuWiki	B-Protocol
with	O
a	O
focus	O
on	O
the	O
use	O
in	O
enterprises	O
.	O
</s>
<s>
It	O
was	O
originally	O
developed	O
in	O
a	O
research	O
project	O
focusing	O
on	O
adding	O
structured	O
data	O
to	O
wikis	B-Protocol
and	O
making	O
it	O
more	O
usable	O
in	O
industrial	O
production	O
companies	O
.	O
</s>
<s>
As	O
required	O
by	O
DokuWiki	B-Protocol
's	O
license	O
these	O
projects	O
are	O
all	O
licensed	O
under	O
the	O
GPL	B-License
version	O
2	O
.	O
</s>
<s>
DokuWiki	B-Protocol
is	O
used	O
by	O
various	O
public	O
and	O
non-public	O
wiki	B-Protocol
setups	O
.	O
</s>
