Regular Expressions 101

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Community Patterns

-2

Get text between quotes (ignore escaped ones)

PCRE (PHP <7.3)
http://stackoverflow.com/a/171499/1519058
Submitted by Enissay - 11 years ago
-2

email

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 11 years ago
-2

Filter IP from beggin of log

PCRE (PHP <7.3)
no description available
Submitted by W - 11 years ago
-2

Remove empty HTML tags

PCRE (PHP <7.3)
Removes empty HTML tags. Was needed for old input clean-up and to keep a HTML parses from crashing. Looking for improvement on bottom test.
Submitted by R. Sartorius - 11 years ago
-2

Ukazka

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 11 years ago
-2

failed attempt

PCRE (PHP <7.3)
no description available
Submitted by DynV - 11 years ago
-2

A masz!

PCRE (PHP <7.3)
no description available
Submitted by Ja - 11 years ago
-2

[A-Z]+[a-z]{1,2}[0-9]*

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 11 years ago
-2

Match v4 IP address

PCRE (PHP <7.3)
no description available
Submitted by Budiony Damyanov - 11 years ago
-2

Select ID from regex101 URL

ECMAScript (JavaScript)
no description available
Submitted by Vinay - 11 years ago
-2

Why doesn't it stop at the period?

PCRE (PHP <7.3)
try to match just the name from this: Copyright © 2005 Candy Arrington. Used by permission. All rights reserved.
Submitted by anonymous - 11 years ago
-2

Regular expression for both IPv6 and IPv4 URL

PCRE (PHP <7.3)
no description available
Submitted by Henry Li - 11 years ago
-2

test

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 11 years ago
-2

IP 3 words and a number

PCRE (PHP <7.3)
Matches an Ip and any 3 words and a number after separated by any number of spacing characters.
Submitted by Attalward - 11 years ago
-2

Unicode email sanitising

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 11 years ago
-2

French phone number

PCRE (PHP <7.3)
no description available
Submitted by Benoit Anastay - 11 years ago
-2

1_aa3

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 11 years ago
-2

Sample

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 11 years ago
-2

Regex to select text withing square brackets.

ECMAScript (JavaScript)
no description available
Submitted by Dhrubajyoti Gogoi - 11 years ago
-2

Find multiple XML documents in file

PCRE (PHP <7.3)
as title says
Submitted by Doro - 11 years ago
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Community Library Entry

1

Regular Expression
Python

r"
([\'\"\`])(.*)\1
"
gm
Open regex in editor

Description

  • 'string in simple quotes'
  • "in double-quotes"
  • in back-quotes
  • "Works good with symbols ' or " or ` inside the string"
  • "All another type quotes "' inside string are ignored" use something like \ or " or '
  • " Matches only identical quotes on string start and end ' // regex can`t find this
  • group 1 saves quote symbol
  • group 2 saves clear text

Valid strings

  • "Something something something something"
  • 'Something something something something'
  • Something something something something
  • "Something something ' ` something something"
  • 'Something something " ` something something'
  • Something something " ' something something
  • "Something something " something something"
  • 'Something something ' something something'
  • Something something \ something something`
  • Something something \\ something something
Submitted by V. Martian - 5 years ago