Regular Expressions 101

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Community Patterns

0

starts with number and ends with string or number

Python
starts with number and ends with string or number starts with +ve, -ve or decimal number
Submitted by suraj - 2 years ago
0

conditional lookahead (IF (pat1) or (pat2) THEN match (pat1) and/or (pat2) box

Python
Python does not support conditionals using lookaround, even though Python does support lookaround outside conditionals. (?(?=regex) then|else) is illegal in python (?=regex)then|(?!regex)else - this works. madness details in the test strings
Submitted by PeteC - 2 years ago
0

Email Validation

Python
It won't recognize if the local-part is just one character like t@somedomain.com
Submitted by anonymous - 2 years ago
0

single character v2?

Python
find any standalone, non-white space character
Submitted by anonymous - 2 years ago
0

Airtel Unlimited Plan

Python
Airtel Unlimited Plan
Submitted by starkm42 - 2 years ago
0

Public

PCRE (PHP <7.3)
Public view for my collection
Submitted by anonymous - 2 years ago
0

Detect space kernel between characters

PCRE (PHP <7.3)
Detect space kernel between characters
Submitted by anonymous - 2 years ago
0

Delete spaces between words only

PCRE (PHP <7.3)
Delete spaces between words only
Submitted by anonymous - 2 years ago (Last modified 2 years ago)
0

Delete spaces at beginning or end of a string

PCRE (PHP <7.3)
Delete spaces at beginning or end of a string
Submitted by anonymous - 2 years ago
0

Remove Trailing Number

Python
Regex for the gvsbuild tool to remove a trailing number from a project name.
Submitted by anonymous - 2 years ago (Last modified 2 years ago)
0

pens

Python
testing
Submitted by anonymous - 2 years ago
0

71871164

Python
Stack overflow example
Submitted by anonymous - 2 years ago
0

password strong

PCRE (PHP <7.3)
password 8-16 with A-Z a-z 0-9 and !@#$ without %
Submitted by alfxjx - 2 years ago
0

原神圣遗物OCR副属性（中文简体）

Python
用于游戏“原神”的圣遗物OCR结果中的副属性识别
Submitted by Wansn - 2 years ago
0

Phone number regex

Python
REGEX to test various phone numbers
Submitted by Drew Recker - 2 years ago
0

#value # value

Python
account for comments
Submitted by anonymous - 2 years ago
0

CVE-2021-31805 (s2-062)

Python
\%[\s|\\r|\\n]\{[\s|\\r|\\n](?:[\s|\\r|\\n]*\(\#+\=+\)\.)
Submitted by anonymous - 2 years ago
0

LinkTree

Python
just to find linktree links in poirot
Submitted by anonymous - 2 years ago (Last modified 2 years ago)
0

OS正则表达式

Java 8
zzx
Submitted by zzx - 2 years ago
0

DB

Java 8
DB
Submitted by DB - 2 years ago
1...551552553554555...576

Python version (PEP440)

0

Regular Expression
PCRE (PHP <7.3)

/
^[Pp]ython v?(?:(?:(?<epoch>[0-9]+)!)?(?<release>[0-9]+(?:\.[0-9]+)*)(?<pre>[-_\.]?(?<preLabel>(a|b|c|rc|alpha|beta|pre|preview))[-_\.]?(?<preNumber>[0-9]+)?)?(?<post>(?:-(?<postNumber0>[0-9]+))|(?:[-_\.]?(?<postLabel>post|rev|r)[-_\.]?(?<postNumber1>[0-9]+)?))?(?<dev>[-_\.]?(?<devLabel>dev)[-_\.]?(?<devNumber>[0-9]+)?)?)(?:\+(?<local>[a-z0-9]+(?:[-_\.][a-z0-9]+)*))?$
/
gm
Open regex in editor

Description

Parses a python version which follows the PEP440 versioning scheme, obtained by calling the command python --version. This is done in an almost strict manner in order to avoid picking up undesired strings.

Submitted by anonymous - 5 years ago