Regular Expressions 101

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Community Patterns

1

Valid HTML Tag Pattern

PCRE2 (PHP >=7.3)
Valid HTML Tag Pattern Which HTML tags are considered invalid: Tags ending with a different tag than what it started. Example: Hello Tags with open attributes (or closed with a different type of quote). Examples: Hello or Hello Which HTML tags are considered valid: Tags ending with the same tag...
Submitted by Ninja - a year ago (Last modified a year ago)
1

JavaScript number/bigint literals

ECMAScript (JavaScript)
Should match any valid JavaScript number/bigint literal. See this StackOverflow answer by me for matching JS numbers. open in regex101 editor - example matches and unit tests\ Regulex%7C%5BoO%5D%5B0-7%5D(%3F%3A_%3F%5B0-7%5D%2B)%7C%5B0-7%5D%2B%7C%5BxX%5D%5B0-9a-fA-F%5D(%3F%3A_%3F%5B0-9a-fA-F%5D%2B)...
Submitted by MAZ01001 - 2 years ago (Last modified 3 months ago)
1

match hex colors

PCRE2 (PHP >=7.3)
Match hex colors with PCRE2
Submitted by anonymous - 2 years ago
1

nmcli WiFi list

PCRE2 (PHP >=7.3)
Extract different fields from the list output of nmcli: nmcli --terse --colors no --fields IN-USE,BSSID,SSID,MODE,CHAN,RATE,SIGNAL,BARS,SECURITY,FREQ,DEVICE device wifi list
Submitted by Simon Bagley - 2 years ago (Last modified 2 years ago)
1

RGB colors

PCRE (PHP <7.3)
Matches all the RGB colors in the format #RRGGBB and #RGB
Submitted by Gabriel Hautclocq - 10 years ago
1

RGB 256 Color Format: Matches 24bit RGB Colors.

ECMAScript (JavaScript)
There are several ways to format 24bit RGB Colors, however, two of the formats are far more common in the wild than others. The 2 most common 24bit RGB formats are | FORMAT | Alt Name | Num Sys | | ------------------------ | -------------- | ------------ | | RGB Hex Format | HexColo...
Submitted by anonymous - 3 years ago (Last modified 3 years ago)
1

CSS Hex Color

ECMAScript (JavaScript)
CSS Hex Color Regex for JS Supports alpha value (4 and 8 character hex codes) introduced in CSS Color Module Level 4 Well tested
Submitted by anonymous - 6 years ago
1

RGBA color values and opacity matcher

ECMAScript (JavaScript)
Regex to match R-G-B and Opacity with/without "," and even RGBA text It will match rgba(x,x,x,x.x) rgba (x x X x.x) x,x,x,x.x x x x x.x...
Submitted by Maulik Soni - 10 years ago
1

CSS RGB Color

ECMAScript (JavaScript)
CSS RGB Color Regex for JS Supports RGB and RGBA syntax (identical in CSS Color Module Level 4) Well tested Allows for decimal values Currently does not support percentage values or CSS Color Module Level 4 white-space syntax
Submitted by anonymous - 6 years ago
1

RGBA [0;255]

PCRE (PHP <7.3)
Color RGBA in shape : 255, 255, 255, 255 ',' or ';' are accepted
Submitted by theBlueBisu - 10 years ago
1

Find CSS hexadecimal color values

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 7 years ago
1

Check if string matches a valid CSS color (hex, rgb, rgba, hsl, hsla)

ECMAScript (JavaScript)
no description available
Submitted by Ioannis Potouridis - 7 years ago
1

Tailwind CSS Color Regex

ECMAScript (JavaScript)
Just a little regex for the tailwind css color classes, It could be improved.
Submitted by anonymous - 5 years ago
1

Valid RGB color value

ECMAScript (JavaScript)
Pattern for matching actually valid RGB values. validate separator (mixing spaces and commas between values is not valid) validate if comma is used as separator if alpha channel is set validate units (mixing percentage with integers is not valid) extract r, g, b, a, separator and unit with named gr...
Submitted by BorisTB - 4 years ago (Last modified 4 years ago)
1

color-price-count

PCRE (PHP <7.3)
no description available
Submitted by By me - 8 years ago
1

Color RegEx

ECMAScript (JavaScript)
Color RegEx
Submitted by Xaliks - 4 years ago
1

CSS3 color expressions

PCRE (PHP <7.3)
Up to spec as of 2016-03-16. You can choose whether to enforce industry-standard casing for keywords via the "i" flag, which is enabled by default. Note that both "currentcolor" and "currentColor" are common; the relevant spec uses "currentColor", but several browsers prefer "currentcolor".
Submitted by Paul Buonopane @ NamePros - 9 years ago
1

Regex to Match Valid Hex Color Values in CSS

Python
no description available
Submitted by Prayash Mohapatra - 9 years ago
1

spaces in parenthesis

ECMAScript (JavaScript)
Eliminate spaces in the inner part of parenthesis.
Submitted by Luis Colorado - 10 years ago
1

HTML color search

PCRE (PHP <7.3)
Searches for hex colors in HTML code.
Submitted by Barlean - 11 years ago
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