<s>
This	O
is	O
a	O
comparison	B-Algorithm
of	I-Algorithm
regular	I-Algorithm
expression	I-Algorithm
engines	I-Algorithm
.	O
</s>
<s>
+	O
List	O
of	O
regular	B-Language
expression	I-Language
libraries	O
Name	O
Official	O
website	O
Programming	O
language	O
Software	B-License
license	I-License
Used	O
by	O
Boost.Regex	O
Boost	B-Language
C++	I-Language
Libraries	I-Language
C++	B-Language
Notepad++	O
>=	O
6.0.0	O
,	O
EmEditor	B-Application
BoostXpressive	O
Boost	B-Language
C++	I-Language
Libraries	I-Language
C++	B-Language
DEELX	O
RegExLab	O
C++	B-Language
FREJ	O
Fuzzy	O
Regular	B-Language
Expressions	I-Language
for	O
Java	B-Language
Java	B-Language
GLib/GRegex	O
GLib	B-Language
reference	O
manual	O
C	B-Language
GRETA	O
Microsoft	O
Research	O
C++	B-Language
GregexGrovf	O
Inc	O
.	O
RTL	O
,	O
HLS	O
FPGA	O
accelerated	O
>100Gbit	O
/s	O
regex	B-Language
engine	O
for	O
cybersecurity	O
,	O
financial	O
,	O
e-commerce	O
industries	O
.	O
</s>
<s>
HyperscanIntel	O
C	B-Language
,	O
x86-specific	O
assembly	O
(	O
SSSE3+	O
)	O
Rspamd	O
ICU	B-Application
International	B-Application
Components	I-Application
for	I-Application
Unicode	I-Application
C	B-Language
,	O
C++	B-Language
Foundation	B-Operating_System
(	O
Apple	O
and	O
Swift	O
open-source	O
versions	O
)	O
Jakarta	O
Regexp	B-Language
The	O
Apache	B-Application
Jakarta	O
Project	O
Java	B-Language
java.util.regex	O
Java	B-Language
's	O
User	O
manual	O
Java	B-Language
jEdit	B-Language
JRegex	O
JRegex	O
Java	B-Language
MATLAB	B-Language
Regular	O
ExpressionsMATLAB	O
Language	O
OnigurumaKosako	O
C	B-Language
Atom	B-Application
,	O
Take	B-Application
Command	I-Application
Console	I-Application
,	O
Tera	B-Protocol
Term	I-Protocol
,	O
TextMate	B-Application
,	O
Sublime	B-Language
Text	I-Language
,	O
SubEthaEdit	B-Operating_System
,	O
EmEditor	B-Application
and	O
jq	O
Pattwo	O
Stevesoft	O
Java	B-Language
(	O
compatible	O
with	O
Java	B-Language
1.0	O
)	O
PCRE	B-Language
pcre.org	O
C	B-Language
,	O
C++	B-Language
Apache	B-Application
HTTP	I-Application
Server	I-Application
,	O
Nginx	B-Operating_System
,	O
BBEdit	B-Operating_System
,	O
Edbrowse	O
,	O
Julia	B-Application
,	O
HHVM	B-Language
,	O
Notepad++	O
<	O
6.0.0	O
,	O
PHP	B-Application
,	O
Delphi	B-Language
,	O
R	B-Language
,	O
Exim	B-Protocol
SWI-Prolog	B-Application
Qt/QRegExp	O
Digia	O
C++	B-Language
Kate	B-Application
,	O
Kile	B-Language
regex	B-Language
-	O
Henry	O
Spencer	O
's	O
regular	B-Language
expression	I-Language
libraries	O
ArgList	O
C	B-Language
RE2	B-Algorithm
RE2	B-Algorithm
C++	B-Language
Go	B-Application
,	O
Google	O
Sheets	O
,	O
Gmail	O
,	O
G	O
Suite	O
Henry	O
Spencer	O
's	O
Advanced	O
Regular	B-Language
Expressions	I-Language
Tcl	B-Operating_System
C	B-Language
RGX	O
RGX	O
C++	B-Language
based	O
component	O
library	O
RXP	O
Titan	O
IC	O
RTL	O
hardware-accelerated	O
search	O
acceleration	O
using	O
RegEx	B-Language
available	O
for	O
ASIC	O
,	O
FPGA	O
and	O
cloud	O
.	O
</s>
<s>
+	O
List	O
of	O
languages	O
and	O
frameworks	O
including	O
regular	B-Language
expression	I-Language
support	O
Language	O
Official	O
website	O
Software	B-License
license	I-License
Remarks	O
ActionScript	B-Operating_System
3	O
ActionScript	B-Operating_System
Technology	O
Center	O
APL	B-Language
(	O
APLX	B-Language
,	O
Dyalog	O
,	O
GNU	O
)	O
APL	B-Language
Wiki	O
⎕SS	O
(	O
PCRE	B-Language
)	O
,	O
⎕	O
R/	O
⎕S	O
(	O
PCRE	B-Language
)	O
,	O
⎕SS	O
(	O
PCRE2	B-Language
)	O
,	O
respectively	O
C++11	O
(	O
C++	B-Language
)	O
C++	B-Language
standards	O
website	O
Since	O
ISO14822:2011(e )	O
,	O
similar	O
to	O
ECMAScript	B-Language
on	O
default	O
(	O
Grammar	O
Description	O
)	O
D	B-Application
D	B-Application
Free	B-Operating_System
Pascal	I-Operating_System
(	O
Object	B-Language
Pascal	I-Language
)	O
freepascal.org	O
Free	B-Operating_System
Pascal	I-Operating_System
2.6	O
+	O
ships	O
with	O
TRegExpr	O
from	O
Sorokin	O
and	O
two	O
other	O
regular	B-Language
expression	I-Language
libraries	O
;	O
See	O
wiki.lazarus.freepascal.org/Regexpr	O
.	O
</s>
<s>
Go	B-Application
Golang.org	B-Application
Haskell	B-Language
Haskell.org	B-Language
Omitted	O
in	O
the	O
language	O
report	O
,	O
and	O
in	O
GHC	O
's	O
Hierarchical	O
Libraries	O
Java	B-Language
Java	B-Language
REs	O
are	O
written	O
as	O
strings	O
in	O
source	O
code	O
:	O
all	O
backslashes	O
must	O
be	O
doubled	O
,	O
harming	O
readability	O
.	O
</s>
<s>
JavaScript	B-Language
(	O
ECMAScript	B-Language
)	O
ECMA-262	B-Language
Limited	O
but	O
REs	O
are	O
first-class	O
citizens	O
of	O
the	O
language	O
with	O
a	O
specific	O
/.../mod	O
syntax	O
.	O
</s>
<s>
Julia	B-Application
JuliaLang.org	B-Application
REs	O
are	O
part	O
of	O
the	O
language	O
core	O
library	O
using	O
PCRE	B-Language
built-in	O
and	O
an	O
optional	O
wrapper	O
for	O
(	O
C	B-Language
code	O
)	O
ICU	B-Application
is	O
available	O
.	O
</s>
<s>
Lua	B-Language
Lua.org	B-Language
Uses	O
simplified	O
,	O
limited	O
dialect	O
;	O
can	O
be	O
bound	O
to	O
more	O
powerful	O
library	O
,	O
like	O
PCRE	B-Language
or	O
an	O
alternative	O
parser	O
like	O
LPeg	O
.	O
</s>
<s>
Mathematica	B-Language
Wolfram	B-Language
.NET	B-Application
MSDN	O
Nim	B-Application
nim-lang.org	O
Standard	O
library	O
includes	O
PCRE-based	O
re	O
and	O
nre	O
modules	O
,	O
as	O
well	O
as	O
various	O
alternatives	O
(	O
ex	O
.	O
</s>
<s>
OCaml	B-Language
Caml	O
,	O
the	O
standard	O
module	O
is	O
generally	O
regarded	O
as	O
deprecated	O
;	O
often	O
recommended	O
libraries	O
are	O
pcre	B-Language
(	O
with	O
full	O
support	O
for	O
PCRE	B-Language
)	O
and	O
re	O
(	O
which	O
is	O
not	O
as	O
complete	O
but	O
claims	O
better	O
performance	O
and	O
provides	O
frontends	O
to	O
popular	O
syntaxes	O
:	O
PCRE	B-Language
,	O
Perl	B-Language
,	O
Posix	O
,	O
Emacs	O
,	O
shell	O
globbing	O
)	O
.	O
</s>
<s>
Perl	B-Language
Perl.com	O
Full	O
,	O
central	O
part	O
of	O
the	O
language	O
PHP	B-Application
PHP.net	B-Application
Has	O
two	O
implementations	O
,	O
with	O
PCRE	B-Language
being	O
the	O
more	O
efficient	O
in	O
speed	O
,	O
functions	O
POSIX	O
C	B-Language
(	O
C	B-Language
)	O
POSIX.1	O
web	O
publication	O
Supports	O
POSIX	O
BRE	O
and	O
ERE	O
syntax	O
Python	B-Language
python.org	B-Language
Python	B-Language
has	O
two	O
major	O
implementations	O
,	O
the	O
built	O
in	O
re	O
and	O
the	O
regex	B-Language
library	O
.	O
</s>
<s>
Ruby	B-Language
ruby-doc.org	O
Ruby	B-Language
1.8	O
,	O
Ruby	B-Language
1.9	O
,	O
and	O
Ruby	B-Language
2.0	O
and	O
later	O
versions	O
use	O
different	O
engines	O
;	O
Ruby	B-Language
1.9	O
integrates	O
Oniguruma	B-Algorithm
,	O
Ruby	B-Language
2.0	O
and	O
later	O
integrate	O
Onigmo	O
,	O
a	O
fork	O
from	O
Oniguruma	B-Algorithm
.	O
</s>
<s>
Rust	B-Application
docs.rs	O
The	O
primary	O
regex	B-Language
crate	O
does	O
not	O
allow	O
look-around	O
expressions	O
.	O
</s>
<s>
There	O
is	O
an	O
Oniguruma	B-Algorithm
binding	O
called	O
onig	O
that	O
does	O
.	O
</s>
<s>
SAP	B-Language
ABAP	I-Language
SAP.com	O
Tcl	B-Operating_System
tcl.tk	B-Operating_System
Tcl	B-Operating_System
library	O
doubles	O
as	O
a	O
regular	B-Language
expression	I-Language
library	O
.	O
</s>
<s>
NOTE	O
:	O
An	O
application	O
using	O
a	O
library	O
for	O
regular	B-Language
expression	I-Language
support	O
does	O
not	O
necessarily	O
offer	O
the	O
full	O
set	O
of	O
features	O
of	O
the	O
library	O
,	O
e.g.	O
</s>
<s>
GNU	B-Application
grep	I-Application
which	O
uses	O
PCRE	B-Language
does	O
not	O
offer	O
lookahead	O
support	O
,	O
though	O
PCRE	B-Language
does	O
.	O
</s>
<s>
+	O
Language	O
feature	O
comparison	O
(	O
part	O
2	O
)	O
Directives	O
Conditionals	O
Atomic	O
groups	O
Named	O
capture	O
Comments	O
Embedded	O
code	O
Unicode	O
property	O
support	O
Balancing	O
groups	O
Variable-length	O
look-behinds	O
Boost.Regex	O
Boost.Xpressive	O
CL-PPCRE	O
EmEditor	B-Application
FREJ	O
GLib/GRegex	O
GNU	B-Application
grep	I-Application
Haskell	B-Language
RXP	O
ICU	B-Application
Regex	B-Language
Java	B-Language
JavaScript	B-Language
(	O
ECMAScript	B-Language
)	O
The	O
support	O
and	O
range	O
of	O
properties	O
is	O
dependent	O
on	O
implementation	O
.	O
</s>
<s>
JGsoft	O
Lua	B-Language
.NET	B-Application
OCaml	B-Language
PCRE	B-Language
Perl	B-Language
PHP	B-Application
Python	B-Language
Qt/QRegExp	O
RE2	B-Algorithm
?	O
</s>
