Regular Expressions 101

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Community Patterns

1

semver2.0.0_franenguix

Python
Given a version number MAJOR.MINOR.PATCH, increment the: MAJOR version when you make incompatible API changes. MINOR version when you add functionality in a backward compatible manner. PATCH version when you make backward compatible bug fixes. A pre-release version MAY be denoted by appending a hyp...
Submitted by FranEnguix - 9 days ago (Last modified 9 days ago)
1

GPT multiline equations match

Python
substitutes \[...\] with $$...$$
Submitted by MyAiTree - 14 days ago (Last modified 7 days ago)
1

ChatGPT Equations to MD equations

Python
Substitute the oneliner GPT equations \(..\) to tex like i.e. $..$
Submitted by MyAITree - 14 days ago
1

Match a^nb^n

Python
Matches some number of a's followed by the same number of b's, usually written as a^nb^n for all natural numbers n. For regular expressions as formally defined in formal language theory, this is impossible, but modern day regex engines can do far more than match just regular languages. Note that eve...
Submitted by FieryIceStickie - a month ago
1

SVG viewbox parser

Python
for finding and extracting numbers from the viewbox attribute. see also my generalized SVG number regex. v2: added support for scientific notation
Submitted by riedler - a month ago (Last modified 22 days ago)
1

SVG number syntax

Python
for correctly parsing numbers in SVG attributes like path d or viewBox with regex v2: added support for scientific notation
Submitted by riedler - a month ago (Last modified 22 days ago)
1

Telegram username

Python
Validates and obtains the Telegram user's username according to the rules for creating usernames
Submitted by okineadev - a month ago (Last modified a month ago)
1

Egyptian Phone Numbers regex Checker

Python
To check for Egyptian phone numbers using a regular expression Format of Egyptian phone numbers: It starts with 01 (indicating mobile numbers). Followed by one of the following digits representing the mobile provider: 0 for Vodafone. 1 for Etisalat....
Submitted by Assem ELQersh - a month ago
1

East pointer, reference and const to west.

Python
just as god intended. "T const" -> "const T"
Submitted by SpaghettDev - 2 months ago (Last modified 2 months ago)
1

Комментарии функции БСП

Python
Комментарии к функциям 1С
Submitted by binx@mail.ru - 3 months ago
1

search *user=.*

Python
for ansible regex_search in docker envs
Submitted by anonymous - 3 months ago
1

ORCID iD

Python
The ORCID ID (16-digit identifiers) format checker. Reference: Format of the ORCID iD
Submitted by Ken Lui - 3 months ago
1

Catch domains

Python
Catch domains from str. Details see TEST STRING
Submitted by Casey TSui - 3 months ago
1

Battlemetrics line fixer

Python
Fixes battlemetrics newline formatting
Submitted by Neun - 4 months ago
1

Russian car plate for Python

Python
Regex for matching Russian car plate without region
Submitted by aalexren - 5 months ago
1

VALID_IP

Python
VALID_IP checker
Submitted by GSV - 5 months ago (Last modified 5 months ago)
1

Distinguish torrent files (series vs movies) with episode numbers

Python
a modified verison of this awesome regex https://regex101.com/library/yP4bY4 by author firas dib that includes a capture group for episode numbers in addition to season numbers.
Submitted by SethMacKayChandler - 6 months ago (Last modified 6 months ago)
1

Date and age matcher

Python
matches strings like: "01/04/2023", "14/May/24" and "20" (age). WARNING: for american dates swap day and month! Groups: Date - the whole date Day - day Month - month...
Submitted by OlgPok - 6 months ago (Last modified 6 months ago)
1

E-mail validation regex

Python
For Culver City Learn Teach Code 4/16/24 Regex obtained from: https://stackoverflow.com/a/21608456/2683447 List is subset taken from: https://gist.github.com/cjaoude/fd9910626629b53c4d25
Submitted by anonymous - 7 months ago
1

Match function declerations in python

Python
This regex will match function declerations in python
Submitted by danielnachumdev - 7 months ago
123...105

Community Library Entry

1

Regular Expression
Python

r"
(?#This tag is the start of the paragraph)<p>(?# This lookahead makes sure paragraph isn't an empty line. Needs it.)(?![\n|<])(?#This group captures the paragraph.)(.{0,500}?)(?#This negative lookahead/custom character class prevents <tags>)(?![^<][\s]|[\w]+[^>])(?#This tag is the end of the paragraph)</p>(?# This lookahead makes sure the paragraph ends at the end of the line.)(?=\n|<div|<p>)
"
gms
Open regex in editor

Description

TLDR: It can be used to capture all the paragraphs from some webnovel sites. *update: testing other sites, I've found it lacking.

This is intended to match a <p> tag and it's closing tag. It only matches and captures if there are no other html tags nested in the <p> tag.

There is room to adjust with the quantifier.

Condensed regex:

<p>(?![\n|<])(.{0,500}?)(?![^<][\s]|[\w]+[^>])</p>(?=\n|<div)
Submitted by anonymous - a year ago (Last modified a year ago)