Get path (windows style) from any type of text (error message, e-mail corps ...), quoted or not. THIS IS THE SINGLE LINE VERSION ! If you want understand how it work or edit it, go https://regex101.com/r/7o2fyy Relative path are not supported The goal is to catch what "Look like" a path. See the limitations UNC path and prefix path like //./], [//?/] or [//./UNC/] are allowed some url path like [file:///C:/] or [file://] are allowed Catch path quoted with ["] and [']. But these quotes are include with the catch Quoted path is not concerned by limitations Limitations : (only unquoted path) [dot] and [space] is allowed, but not in a row [dot+space] or [space+dot at end of file name isn't catched INSIDE A NAME FILE (or last directory if it is a path to a directory) : [comma] is not supported (it stop the catch) after a first [dot], any [space] stop the catch after a [space], catch is stoped if next character is not a [letter], [digit] or [-] so, double [space] stop the catch Compatibility compatible PCRE, PCRE2 AutoHotkey : don't forget to escape "%" in "`%" /!\ Powershell and .Net /!\\ : this regex need some modification to be interpreted by powershell. You have to replace each (?&CapturGroupName) by \k. Use this powershell code to do this replacement : ` $powershellRegex = @' [Put here the regex to replace (?&CapturGroupName) with \k] '@ -replace '\(\?&(\w+)\)', '\k' ` This example code must return : [Put here the regex to replace \k with \k]

This regular expression is designed to validate Egyptian mobile phone numbers by ensuring they conform to the following format: Country Code: The number must start with +20, representing Egypt's international dialing code. Mobile Networks: (Vodafone: 10, e&:11, Orange:12, we:15) Operator Code: The phone number must be followed by one of the valid operator prefixes (10, 11, 12, or 15), corresponding to major mobile networks in Egypt. Number Length: The phone number must have exactly 8 digits following the operator code, for a total of 11 digits (including the country code and operator code). This regex is commonly used to ensure that the input phone numbers follow the standard Egyptian format and belong to the correct mobile operators.

It needs a major modification, since matching an integer is required. The accepted answer \d+ involves only "positive" integers. But -333 or +777 are also integers, which leads to two possible solutions with the last one being the most accurate: -?\d+ : The hyphen (optional minus sign) and a digit 1 or more times. To include the negatives. [+-]?\d+ : Optional + or - and the quantity of more than 0 digits.`

Match any url in text or html (http, https)

email format control

Cloud Flare

Strip all HTML tags from a string. HTML tags are enclosed in . The regex will be applied on a line-by-line basis, meaning partial tags will need to be handled by the regex. Don't worry about opening or closing tags; we just want to get rid of them all. Note: This task is meant to be a learning exercise, and not necessarily the best way to parse HTML

POSIX ERE compatible, suitable for usage in Bash [ testing Attributions Derived from [regex101: RFC1918 - Private IPv4 addresses by 0100101101001.

Accomodate for Discord's username changeover and match against either the old username or the new username. But only one or the other. Match: CesarHvl#9000 cesarhvl cesar.hvl cesar_hvl No Match: Cesar#Hvl#9000 CesarHvl#90001 CesarHvl c cesarhvllllllllllllllllllllllllll cesar..hvl cesarhvlCesarHvl#9000 (^^*(&)

This RegEx removes unused elements such as inline comments and blank lines in python code. This will save you tokens and time when using GPT-3+ or ChatGPT to help code and debug.

Convert a bare url into organization/repo format in a Markdown link.

Regex for matching https://mega.nz file and folder URLs. https://github.com/tonikelope/megabasterd/issues/215

For example, using `Carl-bot to dump members of the @everyone role ordering highest of id`: `!dump @everyone %i:%u -o id` Example of return: 498984530968051713:lanjt#2129 ... Matches with group ID, group NAME and group DISCRIMINATOR.

Convert camelCase to snake_case def camelCase2snake_case(txt): """ Convert camelCase to snake_case https://regex101.com/library/wUcSv4 """ txt = re.sub(r'(A-Z]+)', '_\\1', txt.strip()) txt = txt.lower() return txt In Python 🐍 the \L case modifier in the substitution pattern to lower case is not supported. By [JV-conseil

Visual tag and Back tag cannot more than 15 characters or only can contain uppercase, lowercase, space and dash.

This regular expression is build from the description of NINO number of GOV.UK,

This regular expression is designed to tokenize XML content by identifying major XML constructs through named capture groups. It detects processing instructions (PI), DTD blocks, CDATA sections, comments, self‑closing tags, opening tags, closing tags, and plain text. It is suitable for building lightweight XML lexers or preprocessing XML before deeper parsing.

This is a GitHub Advanced Security (GHAS) Secret Scanning Custom Pattern I created to detect likely hardcoded credentials while reducing common false positives in code. Goal: detect assignments for these key names: password secret apikey / api_key / api-key Pattern regex: (?i)\b(password|secret|api[-]?key)\b\s[:=]\s(?!\s\$\{)(?!\sprocess\.env\b)(?:['"])?[A-Za-z0-9!@#$%^&()+=-]{5,}(?:['"])? What it should catch (examples): password: "ahsjdfahsjfhdjsahj" secret = 'kjfskahfsdhfj' apikey: ABCDE12345!@# (unquoted) What it tries NOT to catch (common false positives): password: ${password_somename} (template/variable placeholder) secret: ${VAULT_SECRET} password: process.env.DB_PASSWORD (env var reference, not a hardcoded secret) This is intended as a practical baseline; it won’t be perfect for every language/config style. If you have suggestions to improve the detection accuracy (reduce false positives/false negatives) for GHAS custom patterns, please share.

Regex Pattern ^\s+|\s+$|(\s)\s+ Replacement $1 Description This regex pattern performs multi-purpose whitespace normalization by: Removing leading whitespace (^\s+) Trimming trailing whitespace (\s+$) Collapsing multiple consecutive whitespace characters into a single space ((\s)\s+ → \1) The replacement \1 preserves the first captured whitespace character while eliminating redundant ones, ensuring clean, standardized spacing.

Password requirements Contains at least 1 number Contains at least 1 special character Contains at least 1 uppercase letter Contains at least 1 lowercase letter It follows AWS in allowing white-space.

Near-optimal solution for Task 7 https://regex101.com/quiz/7. Optimal is 39 characters. Credit to Danail Gabenski on stackoverflow for the \.\b trick.

Use substitution to put commas in all numbers to separate the thousands. ie: 12345678 → 12,345,678. The number could be in a sentence, and there may be more than one number in the sentence.

Check if a floating point number (e.g. 3.14159) is in a valid format.

Could you help me validate my input and only match positive integers between the range of 0 and 100? There can be several numbers in a string which I would want to retrieve. Try out these example strings: Sam has 200 apples. He gives Todd 20 and Mary 125. The weather is -5 C today, but will be +5 C tomorrow.

Validate an IPv4 address. The addresses are four numbered separated by three dots, and can only have a maximum value of 255 in either octet. Start by trying to validate 172.16.254.1.

I'm trying to match bit sequences which are alternating between 1 and 0 and never have more than one 1 or 0 in a row. They can be single digits. Try matching this: 0101010, 1010101010 or 1

Oh no! It seems my friends spilled beer all over my keyboard last night and my keys are super sticky now. Some of the time whennn I press a key, I get two duplicates. Can you ppplease help me fix thhhis? Substitute with $1

Match a string that contains any of the following substrings: http://, www., porn, or credit card. But don't match the text if it contains one of: not allowed, filter, or mirc. Don't use word boundaries (anywhere in the text is fine). If you need help, try reading this.

Replace every . (dot) with a - (hyphen) except when the dot is surrounded by digits. E.g.: .a.b.1.2. should become -a-b-1.2-

I'd like to know if a text contains words with 4 characters or more which are repeated 3 or more times in the text (anywhere in the text). If so, set one (and only one) backreference for each word.

Only match lines with the text start, unless text end appears prior to start. Note: end may or may not be in the string. Match start line_end; and don't match line_end; start

Check if a string contains the word word in it (case insensitive). If you have no idea, I guess you could try /word/.

cashewa.com

Cette regex est un fork de celle-ci permettant de valider un numéro de sécurité sociale français et prenant en compte les cas spécifiques définis sur cette page Wikipedia

Exponential Value Identification

test

\tilde \alpha

thanks

uncode word boundaries

This is the best regex I found that was able to correctly parse cells containing multiple lines (hard line breaks). Low number of steps with sufficient speed, and it doesn't require /x option either. Source: https://gist.github.com/awwsmm/886ac0ce0cef517ad7092915f708175f

This was build on gentoo with english_ca.utf8 IIRC. Might not work for other distros... or locales supports -as the delimiter of hostname suffixing/prefixing

Test your RSS pubDate has a correctly formatted date value according to the RFC822 standard It will match timeZoneName (eg GMT, EST) or time zone offset (eg. +0100)

this is some cursed shit, but it does work. I use it to check whether all my ROMs have valid names or not. Makes it easier to read and, more importantly, deduplicate.

Matches a list of cron expressions which are valid in the Quartz .NET library Quartz Net Cron Expression

IDN Domains & Normal Domains This regex is able to identify any type of domain or subdomain whether it is IDN or normal, this includes domains in emojis, non-Latin characters, etc.

Just a simple regex to detect phone numbers Should work in just about any regex flavor.

Matches palindromes: arbitrary length ignores non-significant characters (spaces, ponctuation) ignores accents, provided the text is NFD-normalized recursive palindromes (e.g. "a été à"): either match the longest one ("a été à") or the nested ones individually ("a", "été", "à") (see comment)

Finds Aadhar number from given string

Regex of email with ability to add gmail's +example system example: root email = user@gmail.com gmail+ = user+extra@gmail.com

https://conventionalcommits.org Parses commits like type(scope)!: subject