Regular Expressions 101

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Community Patterns

1

Match Valid HTML5 Color Names

PCRE2 (PHP >=7.3)
RascalJournal.com
Submitted by anonymous - 3 months ago
1

Match Hex Color Codes

PCRE2 (PHP >=7.3)
DartWhite.com
Submitted by anonymous - 3 months ago
1

Match Hexadecimal Color with Optional Alpha

PCRE2 (PHP >=7.3)
theunjob.com
Submitted by anonymous - 3 months ago
1

Hexadecimal Color Code Validation

PCRE2 (PHP >=7.3)
murdochleaks.org
Submitted by anonymous - 3 months ago
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 - 7 months ago (Last modified 7 months ago)
1

JavaScript number literals

ECMAScript (JavaScript)
Should match any valid JavaScript number literal incl. bigint. See EDIT 4 in this StackOverflow answer by me for matching JS numbers. open in regex101 editor - example matches and unit tests\ Regulex%7C%5BoO%5D%3F%5B0-7%5D(%3F%3A_%3F%5B0-7%5D%2B)%7C%5BxX%5D%5B0-9a-fA-F%5D(%3F%3A_%3F%5B0-9a-fA-F%5D...
Submitted by MAZ01001 - 9 months ago (Last modified 6 months ago)
1

match hex colors

PCRE2 (PHP >=7.3)
Match hex colors with PCRE2
Submitted by anonymous - a year 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 - a year ago (Last modified a year ago)
13

CSS Color Matcher

ECMAScript (JavaScript)
Pattern matching and extracting color code formats using RegEx. https://github.com/Kyza/color-regex/
Submitted by Kyza - a year ago
-1

Matching un-wrapped HTML & CSS code blocks in Markdown

ECMAScript (JavaScript)
PATTERNS RegEx Flavour ECMAScript (JavaScript, ActionScript, TypeScript, etc.) ...
Submitted by anonymous - 2 years ago
0

hsl colors

ECMAScript (JavaScript)
matches many HSL and HSLA formats permitted in CSS
Submitted by anonymous - 2 years ago
0

property and value capture

ECMAScript (JavaScript)
capture property and value which have color attribute in it
Submitted by Keshav - 2 years ago
0

Color Codes

ECMAScript (JavaScript)
hi
Submitted by 12944qwerty - 2 years ago
2

Detect RGB/RGBA colors in CSS

PCRE2 (PHP >=7.3)
JS function to convert RGB(A) to HEX color for single values: /** @param {string} color the RGB(A) color @return {string} the HEX color */ function rgba2hex(color)...
Submitted by WinterSilence - 2 years ago
0

Find element with specific attribute (supports multiline element)

ECMAScript (JavaScript)
This will help you find all the v-btn component usage with prop color set to primary.
Submitted by anonymous - 2 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

RGB Colors in Hex Format: 3 or 6 Hexadecimal Digits

ECMAScript (JavaScript)
Matches against RGB (not to be confused with RGBa). Will match against any and all RGB Hexadecimal Formatted colors. Some example of the values this regular expression was created to match are: "#FFFFFF", "#FFF", "#ABCDEF", "#123456", "#18F", "#812" MUST USE THE 'i' FLAG (insensitive) Without the...
Submitted by jD3V - 3 years ago (Last modified 3 years ago)
0

Match color string

PCRE2 (PHP >=7.3)
Match color string
Submitted by EZ - 3 years ago
0

Hex Color Code

Python
A solution of this test from HackerRank https://www.hackerrank.com/challenges/hex-color-code/problem
Submitted by anonymous - 3 years ago
2

CSS Colors: RGB(A), HSL(A), HEX(3,4,6,8), var(--tw-color), etc...

ECMAScript (JavaScript)
Versatile, multiline matching of CSS colors of many common formats, including: [x] HEX-3: #123 (equivalent to #112233) [x] HEX-4: #FA0F ( ... #FFAA00FF) [x] HEX-6: #FF3300 ( ...#F30) [x] HEX-8: #FFAA00FF ( ...#FA0F)...
Submitted by Nicholas Berlette (@nberlette) - 3 years ago
1234

Community Library Entry

0

Regular Expression
Python

r"
(?P<Hex>(?<=.[^}{])#(?:[\dA-F]{6}|[\dA-F]{3})(?=\W[^}{]))+
"
ig
Open regex in editor

Description

A solution of this test from HackerRank

https://www.hackerrank.com/challenges/hex-color-code/problem

Submitted by anonymous - 3 years ago