Regular Expressions 101

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Community Patterns

1

js

ECMAScript (JavaScript)
no description available
Submitted by sd - 11 years ago
1

Check SQL Insert Into

PCRE (PHP <7.3)
no description available
Submitted by MelRight - 11 years ago
1

tags, tags in quotes

PCRE (PHP <7.3)
#day tralalala #"day" tralalala #'beautiful_day'
Submitted by voodoo free.dev.ua@gmail. - 11 years ago
1

rfrf

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 11 years ago
1

test

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 11 years ago
1

Switzerland UID id

PCRE (PHP <7.3)
matches the Swiss government's UID id for enterprises
Submitted by marcel - 11 years ago
1

Singular or Plural

ECMAScript (JavaScript)
no description available
Submitted by Gavin Jackson - 11 years ago
1

match up to -

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 11 years ago
1

example regex

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 11 years ago
1

srt

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 11 years ago
1

Task 1

PCRE (PHP <7.3)
no description available
Submitted by Kovalev Evgeny - 11 years ago
1

Test Listing Parser

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 11 years ago
1

Find UnCommented Console. Code

ECMAScript (JavaScript)
no description available
Submitted by Jay Johnson - 11 years ago
1

Parse drupal version info from filename

PCRE (PHP <7.3)
no description available
Submitted by Jason Smith - 11 years ago
1

ArcSight Administrator

PCRE (PHP <7.3)
It's to activate when storage space reaches 75% capacity
Submitted by Michal Starr - 11 years ago
1

Inside single quotes, escape aware

PCRE (PHP <7.3)
Allows the single quote to be escaped, handles the \\' situation
Submitted by Robin - 11 years ago
1

Grab double or single quoted text, escape aware

PCRE (PHP <7.3)
^$ are only added for the test cases, handles escapes and the closing \\" situation
Submitted by robin - 11 years ago
1

background:url

PCRE (PHP <7.3)
no description available
Submitted by Mitus M. - 11 years ago
1

gk

PCRE (PHP <7.3)
wertyuikjh
Submitted by hjk - 11 years ago
1

dsf

ECMAScript (JavaScript)
no description available
Submitted by fdsfdsfdsf - 11 years ago
1...576577578579580...902

Community Library Entry

1

Regular Expression
PCRE (PHP <7.3)

/
(?(DEFINE) (?<addr_spec> (?&local_part) @ (?&domain) ) (?<local_part> (?&dot_atom) | (?&quoted_string) | (?&obs_local_part) ) (?<domain> (?&dot_atom) | (?&domain_literal) | (?&obs_domain) ) (?<domain_literal> (?&CFWS)? \[ (?: (?&FWS)? (?&dtext) )* (?&FWS)? \] (?&CFWS)? ) (?<dtext> [\x21-\x5a] | [\x5e-\x7e] | (?&obs_dtext) ) (?<quoted_pair> \\ (?: (?&VCHAR) | (?&WSP) ) | (?&obs_qp) ) (?<dot_atom> (?&CFWS)? (?&dot_atom_text) (?&CFWS)? ) (?<dot_atom_text> (?&atext) (?: \. (?&atext) )* ) (?<atext> [a-zA-Z0-9!#$%&'*+\/=?^_`{|}~-]+ ) (?<atom> (?&CFWS)? (?&atext) (?&CFWS)? ) (?<word> (?&atom) | (?&quoted_string) ) (?<quoted_string> (?&CFWS)? " (?: (?&FWS)? (?&qcontent) )* (?&FWS)? " (?&CFWS)? ) (?<qcontent> (?&qtext) | (?&quoted_pair) ) (?<qtext> \x21 | [\x23-\x5b] | [\x5d-\x7e] | (?&obs_qtext) ) # comments and whitespace (?<FWS> (?: (?&WSP)* \r\n )? (?&WSP)+ | (?&obs_FWS) ) (?<CFWS> (?: (?&FWS)? (?&comment) )+ (?&FWS)? | (?&FWS) ) (?<comment> \( (?: (?&FWS)? (?&ccontent) )* (?&FWS)? \) ) (?<ccontent> (?&ctext) | (?&quoted_pair) | (?&comment) ) (?<ctext> [\x21-\x27] | [\x2a-\x5b] | [\x5d-\x7e] | (?&obs_ctext) ) # obsolete tokens (?<obs_domain> (?&atom) (?: \. (?&atom) )* ) (?<obs_local_part> (?&word) (?: \. (?&word) )* ) (?<obs_dtext> (?&obs_NO_WS_CTL) | (?&quoted_pair) ) (?<obs_qp> \\ (?: \x00 | (?&obs_NO_WS_CTL) | \n | \r ) ) (?<obs_FWS> (?&WSP)+ (?: \r\n (?&WSP)+ )* ) (?<obs_ctext> (?&obs_NO_WS_CTL) ) (?<obs_qtext> (?&obs_NO_WS_CTL) ) (?<obs_NO_WS_CTL> [\x01-\x08] | \x0b | \x0c | [\x0e-\x1f] | \x7f ) # character class definitions (?<VCHAR> [\x21-\x7E] ) (?<WSP> [ \t] ) ) ^(?&addr_spec)$
/
xmg
Open regex in editor

Description

The BNF rules from RFC 5322 transformed to PCRE by Nikita Popov and described in the post http://nikic.github.io/2012/06/15/The-true-power-of-regular-expressions.html.

Submitted by Michael Musson - 7 years ago