Regular Expressions 101

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Community Patterns

1

Multiple substrings between string and a space

PCRE2 (PHP >=7.3)
Multiple substrings between string and a space
Submitted by anonymous - 9 months ago
2

Quartz CRON Validation with groups

ECMAScript (JavaScript)
CRON validation Validates CRON pattern (Quartz) and supports groups. Useful for e.g. typescript or other typed languages. The following greoups are covered: second...
Submitted by Nico Vitt - 9 months ago
1

Ateco Code Validation

Python
Ateco Groups Regex to identify the groups that make up the ateco code, based on its structure. More details: https://www.istat.it/it/archivio/17888 Valid Ateco: 01 - 28.2 - 24.45 - 46.74.1 - 46.73.22...
Submitted by christian dalena - 9 months ago
1

T Launcher Regex

PCRE2 (PHP >=7.3)
Checks for t launcher
Submitted by anonymous - 9 months ago (Last modified 9 months ago)
1

Tag Extractor for Sonarr V3 Release Profiles

PCRE2 (PHP >=7.3)
Better migrate everything to custom format after updating to Sonarr V4!
Submitted by anonymous - 9 months ago
1

SGML Element (.Net)

PCRE2 (PHP >=7.3)
Parses an SGML . Doesn't support name groups. Probably imperfect in other ways. Note this is crafted for .Net as things get a little weird with # matching.
Submitted by Scott Bednar - 9 months ago
1

SGML Element (.Net)

PCRE2 (PHP >=7.3)
Parses an SGML . It doesn't account for name groups. See https://sgmljs.net/docs/sgmlrefman.html. Note that the "Flavor" should be .NET as things get a little weird with the # matching.
Submitted by anonymous - 9 months ago (Last modified 9 months ago)
1

Connection String Parser

PCRE2 (PHP >=7.3)
Parses connection strings into named groups Key and Value , which can then be handled by whatever programmatic method you like. Ideally handled as key value pairs. I did this in PowerShell using the below: function Resolve-ConnectionString {...
Submitted by rbleattler - 9 months ago
1

Replace all occurences of a caracter except if placed between "

PCRE2 (PHP >=7.3)
Replace all occurences of the caracter ; except if it placed between two " signs.
Submitted by ccroche helped by ChatGPT - 9 months ago
1

XC410

PCRE2 (PHP >=7.3)
QS
Submitted by anonymous - 9 months ago
1

Maven Version

PCRE2 (PHP >=7.3)
Based on https://docs.oracle.com/middleware/1212/core/MAVEN/maven_version.htm#A1000661 this validates all maven versions.
Submitted by Baaji Shayeed Shaik - 9 months ago
1

check csv content

PCRE2 (PHP >=7.3)
a
Submitted by abc - 9 months ago
1

https://shopee.com.my/minhao3313

PCRE2 (PHP >=7.3)
minhao3313
Submitted by anonymous - 10 months ago
1

hentialheroes id girl tag

PCRE2 (PHP >=7.3)
reading the id tag from the girl harem html
Submitted by anonymous - 10 months ago
1

Hungarian regular and vanity license plates both from 1990 and 2022 series

PCRE2 (PHP >=7.3)
All regular and vanity Hungarian plates are included from 1990 and from 2022. Special plates (customs, lost, diplomatic and so on), police, ambulance, etc. are not included.
Submitted by gergelyfuzi - 10 months ago
1

French mobile phone numbers

PCRE2 (PHP >=7.3)
French mobile phone numbers
Submitted by anonymous - 10 months ago
1

.*(EXCEL[.]EXE).*(?i)(Maxicredito).*([.]xlsx - Excel)

.NET 7.0 (C#)
.(EXCEL[.]EXE).(?i)(Maxicredito).*([.]xlsx - Excel)
Submitted by anonymous - 10 months ago
1

ActivityWatcher

.NET 7.0 (C#)
sda
Submitted by anonymous - 10 months ago
1

http search locale

PCRE2 (PHP >=7.3)
search locale in http
Submitted by anonymous - 10 months ago
1

Dimensioned quantities in markdown, selected units

ECMAScript (JavaScript)
A more general match for numbers with units/dimensions in plaintext. This is unoptimized, a bit rough, and leaves out plenty of units while including some oddities. Use it as the first step to something better if you're linting md files. This was good enough for my use case, which doesn't care much ...
Submitted by ecfrechette - 10 months ago
1...2728293031...900

Community Library Entry

1

Regular Expression
PCRE2 (PHP >=7.3)

/
(\b(?'first_word'[a-z](?!([[:alnum:]]*_)(?# the word doesn't contain underscores))(?:[a-z0-9]*)))|(\G(?'trailing_word'[A-Z][a-z0-9]*))
/
gm
Open regex in editor

Description

Works with many forms of alphanumeric camelCase

  • camelCase
  • camel
  • camelCaseCaseCase... (with as many words as you want)
  • ca65melCase (ca65mel_case)
  • camelCCase (camel_c_case)

What isn't matched

  • PascalCase
  • words with '_' underscores in them (camel_Snake_Case)

Remarks

  • all 'lowercase' words are matched... but they're not changed by the regex !
Submitted by inesvar - 8 months ago