Regular Expressions 101

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Community Patterns

1

Celphone numbers Control regex for Ivory Coast

PCRE (PHP <7.3)
This script is about testing the validity of celphones from Ivory Coast (+225). The number must start with one of the prefix listed bellow and have 8 caracters long. Moov 01, 02, 03, 40, 41 ou 42 MTN 04, 05, 06, 44, 45, 46, 54, 55 , 56,75 Orange 07, 08, 09, 47, 48, 49, 57, 58, 59, 77...
Submitted by Alain Zio - 10 years ago
3

Alternative Capture Country Codes

PCRE (PHP <7.3)
no description available
Submitted by Branden - 10 years ago
1

matching value of html src attribute

PCRE (PHP <7.3)
matching value of html src attribute
Submitted by junkuos - 10 years ago
4

uri parser

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 10 years ago
3

How do I write a Regex to inspect Cisco Interfaces

PCRE (PHP <7.3)
I am asking for help in writing a regular expression to shorten this expression. I need the string below to search every interface within the range of 1 -24 to validate the configuration. If one interface does not have the required configuration then the expression fails. interface GigabitEtherne...
Submitted by Pirates - 10 years ago
1

Email address validator

PCRE (PHP <7.3)
Validates most email addresses. Using the range [A-Za-z0-9] at the beginning instead of \w means an address cannot begin with an underscore. This range is also used to exclude underscores from the domain (part after @).
Submitted by Owen Howard - 10 years ago
4

Match nth occurence of pattern

PCRE (PHP <7.3)
Match nth occurence of the patterns in the inner parenthesis. Put nth that you want to match in the curly braces (here, {3}).
Submitted by Alex Hall - 10 years ago
3

images url match in text

PCRE (PHP <7.3)
no description available
Submitted by Redfern.89 - 10 years ago
-3

RegEX for account code starting with 000-

PCRE (PHP <7.3)
no description available
Submitted by Joe H - 9 years ago
3

Div content

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

Extract domain and path from video embeds

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
4

Roman numeral detector

PCRE (PHP <7.3)
Detects valid Roman numerals (up to 3999), and splits into 4 capture groups: thousands, hundreds, tens, and units.
Submitted by Terence Linnell - 9 years ago
1

Function with n parameters in C-like syntax.

PCRE (PHP <7.3)
no description available
Submitted by elkamarado@gmail.com - 9 years ago
2

URL

PCRE (PHP <7.3)
Matches the URL from the text to 95 percentage
Submitted by Harinath - 9 years ago
2

Replace REM by blank

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
4

Epic EHR Sticker QR code patient information

PCRE (PHP <7.3)
Text output produced by reading the QR code present on patient stickers created by Epic (R) medical record software
Submitted by MeWa - 9 years ago
2

Grab all hyperlinks

PCRE (PHP <7.3)
no description available
Submitted by Josh Bourke - 9 years ago
4

TV series season and episode names

PCRE (PHP <7.3)
This regex matches against season and series names
Submitted by mikey - 9 years ago
2

Twitter user profile url pattern

PCRE (PHP <7.3)
Pattern that check your string to match Twitter user profile URL.
Submitted by JSC Quatrodev - 9 years ago
1

Google Plus user profile url pattern

PCRE (PHP <7.3)
Pattern that check your string to match Google Plus user profile URL.
Submitted by JSC Quatrodev - 9 years ago
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Community Library Entry

11

Regular Expression
ECMAScript (JavaScript)

/
^(rgb\s*?\(\s*?(000|0?\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\s*?,\s*?(000|0?\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\s*?,\s*?(000|0?\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\s*?\))$|^(rgba\s*?\(\s*?(000|0?\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\s*?,\s*?(000|0?\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\s*?,\s*?(000|0?\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\s*?,\s*?(0|0\.\d*|1|1.0*)\s*?\))$|^(transparent)$|^(#([a-fA-F0-9]){3})$|^(#([a-fA-F0-9]){6}$)|(^hsl\s*?\(\s*?(000|0?\d{1,2}|[1-2]\d\d|3[0-5]\d|360)\s*?,\s*?(000|100|0?\d{2}|0?0?\d)%\s*?,\s*?(000|100|0?\d{2}|0?0?\d)%\s*?\)$)|(^hsla\s*?\(\s*?(000|0?\d{1,2}|[1-2]\d\d|3[0-5]\d|360)\s*?,\s*?(000|100|0?\d{2}|0?0?\d)%\s*?,\s*?(000|100|0?\d{2}|0?0?\d)%\s*?,\s*?(0|0\.\d*|1|1.0*)\s*?\)$)$
/
Open regex in editor

Description

This may be useful or not to test whether a given string is a valid (more or less) html color value. It matches color values such as:

  • #123 - short hex color value
  • #123456 - hex color value
  • rgb(255,255,0) - rgb color value
  • rgba(255,255,0,1.0) - rgba color value
  • hsl(360,100%,100%) - hsl color value
  • hsla(360,100%,100%,0.5334) - hsla color value

Regex allows whitespaces between i.e. rgb and (, also between numbers and commas, but not in value like 55% between number and percentage. To change this behaviour simply remove \s*? from appriopriate places.

Submitted by grouch - 10 years ago