Regular Expressions 101

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Community Patterns

1

general script detection

PCRE (PHP <7.3)
This is a input regex for invaliding inputs that are likely to be scripts. this is a way to hidder xss attacks on your web application and api.
Submitted by ivan - 9 years ago
1

Music Notes

PCRE (PHP <7.3)
regex that identifies music notes written with A, B, ..., A#, C#, ... Ab, Bb, ... notation.
Submitted by anonymous - 9 years ago
1

http request

PCRE (PHP <7.3)
no description available
Submitted by Jonathan Rubin Yaniv - 9 years ago
1

message

Python
no description available
Submitted by anonymous - 9 years ago
1

signal

Python
no description available
Submitted by anonymous - 9 years ago
1

?M ?L ?A

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
1

Grab filepaths from `source` in a bash script

ECMAScript (JavaScript)
Useful for making a build script that compiles all sources into one file.
Submitted by William George - 9 years ago
1

Fetch facebook id/slug from url

PCRE (PHP <7.3)
use part 6
Submitted by AlmogBaku - 9 years ago
1

Find Markdown links, but not image

PCRE (PHP <7.3)
no description available
Submitted by Chuck - 9 years ago
1

get request split parameters groups

PCRE (PHP <7.3)
no description available
Submitted by Roy - 9 years ago
1

match bot commands

PCRE (PHP <7.3)
match bot commands in the first at starting of line only egs - /hi
Submitted by anonymous - 9 years ago
1

sql select request

PCRE (PHP <7.3)
matching any SQL query starting by "SELECT foo,bar FROM fool,baz {...}" this one is the good one. first one have a matching alowing * in the FROM statement.
Submitted by klmmlk - 9 years ago
1

Tripmix selectors for 2015 reprocess

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
1

date Format

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 9 years ago
1

assertion (lookbehind and lookahead)

PCRE (PHP <7.3)
no description available
Submitted by adri et nico - 9 years ago
1

looking for a word of 4 letter

PCRE (PHP <7.3)
look for a word of 4 letter with the look behind and look ahead
Submitted by balzrog & torb500 - 9 years ago
1

Parse JS expression string

PCRE (PHP <7.3)
This expression is used to parse strings like category.slug==smartphone&&request.user_id==12
Submitted by Phaeton - 9 years ago
1

mail

PCRE (PHP <7.3)
mail
Submitted by anonymous - 9 years ago
1

Regex - global match, multiline

Python
no description available
Submitted by MetalMuzu - 9 years ago
1

Split user agent into groups

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
1...652653654655656...900

Community Library Entry

0

Regular Expression
PCRE (PHP <7.3)

/
\b[\w.!#$%&’*+\/=?^`{|}~-]+@[\w-]+(?:\.[\w-]+)*\b
/
mg
Open regex in editor

Description

RFC5322 RFC6854 updates RFC5322

Submitted by anonymous - 5 years ago