<s>
Recoll	B-Language
is	O
a	O
desktop	B-Application
search	I-Application
tool	I-Application
that	O
provides	O
full	B-Application
text	I-Application
search	I-Application
(	O
from	O
single-word	O
to	O
arbitrarily	O
complex	O
boolean	O
searches	O
)	O
in	O
a	O
GUI	B-Application
with	O
few	O
mandatory	O
external	O
dependencies	O
.	O
</s>
<s>
It	O
runs	O
under	O
many	O
Unix-like	B-Operating_System
operating	I-Operating_System
systems	I-Operating_System
,	O
and	O
is	O
mostly	O
independent	O
of	O
the	O
desktop	O
environment	O
.	O
</s>
<s>
Recoll	B-Language
has	O
been	O
ported	O
to	O
OS/2	B-Application
,	O
and	O
is	O
planned	O
for	O
integration	O
into	O
the	O
OS/2	B-Application
-based	O
ArcaOS	B-Device
.	O
</s>
<s>
Recoll	B-Language
was	O
designed	O
not	O
to	O
require	O
a	O
permanent	O
daemon	B-Operating_System
,	O
on	O
Linux	O
systems	O
it	O
can	O
make	O
use	O
of	O
inotify	B-Application
.	O
</s>
<s>
Recoll	B-Language
updates	O
its	O
index	O
at	O
designed	O
intervals	O
(	O
for	O
example	O
through	O
cronjobs	B-General_Concept
)	O
,	O
but	O
if	O
desired	O
,	O
the	O
indexing	O
task	O
can	O
run	O
as	O
a	O
file-system	O
monitoring	O
daemon	B-Operating_System
for	O
real-time	O
index	O
updates	O
.	O
</s>
<s>
Qt	B-Language
GUI	B-Application
.	O
</s>
<s>
Xapian	B-Application
backend	O
.	O
</s>
<s>
Indexes	O
the	O
contents	O
of	O
many	O
document	O
types	O
:	O
text	O
,	O
HTML	B-Language
,	O
email	O
stores	O
of	O
all	O
kinds	O
,	O
OpenDocument	B-Application
,	O
Microsoft	B-Application
Office	I-Application
and	O
Office	B-Operating_System
Open	I-Operating_System
XML	I-Operating_System
,	O
AbiWord	B-Language
,	O
KWord	B-Protocol
,	O
Gaim	B-Protocol
,	O
Lyx	B-Language
,	O
Scribus	B-Application
,	O
PDF	B-Application
,	O
WordPerfect	B-Application
,	O
PostScript	B-Language
,	O
RTF	O
,	O
TeX	B-Application
,	O
DVI	B-Application
,	O
DjVu	O
,	O
MP3	B-Application
and	O
other	O
audio	O
file	O
formats	O
,	O
JPEG	O
and	O
other	O
image	O
file	O
formats	O
.	O
</s>
<s>
Recursively	O
processes	O
embedded	O
documents	O
(	O
E-Mail	O
attachments	O
,	O
Zip	B-General_Concept
archives	I-General_Concept
)	O
to	O
arbitrary	O
depths	O
.	O
</s>
<s>
GUI	B-Application
Boolean	O
search	O
build	O
tool	O
.	O
</s>
<s>
Word	B-General_Concept
stemming	I-General_Concept
is	O
performed	O
at	O
query	O
time	O
(	O
can	O
switch	O
stemming	B-General_Concept
language	O
after	O
indexing	O
)	O
.	O
</s>
<s>
MD5	B-Algorithm
document	O
hashes	O
for	O
the	O
elimination	O
of	O
duplicates	O
in	O
results	O
.	O
</s>
<s>
Python	B-Language
API	B-General_Concept
.	O
</s>
<s>
GNOME	B-Language
Shell	I-Language
search	O
provider	O
,	O
WEB	O
interface	O
,	O
and	O
Firefox	B-Application
history	O
extensions	O
.	O
</s>
<s>
Html	B-Language
.	O
</s>
<s>
Evolution	O
note	O
:	O
be	O
sure	O
to	O
remove	O
.cache	O
from	O
the	O
skippedNames	O
list	O
in	O
the	O
GUI	B-Application
Indexing	O
preferences/Local	O
Parameters/	O
pane	O
if	O
you	O
want	O
to	O
index	O
local	O
copies	O
of	O
Imap	O
mail	O
.	O
</s>
<s>
Gaim	B-Protocol
and	O
purple	O
log	O
files	O
.	O
</s>
<s>
Scribus	B-Application
files	O
.	O
</s>
<s>
All	O
the	O
following	O
need	O
Python3	B-Language
:	O
</s>
<s>
Tar	O
file	O
indexing	O
is	O
disabled	O
by	O
default	O
(	O
because	O
tar	O
archives	O
do	O
n't	O
typically	O
contain	O
the	O
kind	O
of	O
documents	O
that	O
people	O
search	O
for	O
)	O
,	O
you	O
will	O
need	O
to	O
enable	O
it	O
explicitly	O
,	O
like	O
with	O
the	O
following	O
in	O
your	O
$	O
HOME/.recoll/mimeconf	O
file	O
:	O
</s>
<s>
Zip	B-General_Concept
archives	I-General_Concept
.	O
</s>
<s>
Konqueror	O
web	O
archive	O
format	O
(	O
uses	O
the	O
tarfile	O
Python	B-Language
standard	O
library	O
module	O
)	O
.	O
</s>
<s>
PDF	B-Application
files	I-Application
.	O
</s>
<s>
Wordperfect	B-Application
files	O
.	O
</s>
<s>
Abiword	B-Language
files	O
.	O
</s>
<s>
Kword	B-Protocol
files	O
.	O
</s>
<s>
Microsoft	B-Application
Office	I-Application
traditional	O
and	O
Open	B-Operating_System
XML	I-Operating_System
files	O
.	O
</s>
