Regular Expressions 101

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Community Patterns

-1

ESET Advanced Machine Learning servers (DNS)

PCRE2 (PHP >=7.3)
Match ESET Advanced Machine Learning servers for exclusion from DNS logs
Submitted by kernelmustard - a year ago (Last modified a year ago)
0

ESET Threat Lab domains (DNS)

PCRE2 (PHP >=7.3)
Match ESET Threat Lab domains for exclusion from DNS logs
Submitted by kernelmustard - a year ago (Last modified a year ago)
0

varnish

PCRE2 (PHP >=7.3)
varnish config
Submitted by anonymous - a year ago
0

scriptpak №1

Python
scriptpak №1
Submitted by anonymous - a year ago
0

Markdown JSON codeblock match

ECMAScript (JavaScript)
Useful to extract JSON from LLM markdown responses
Submitted by Lamer217 - a year ago (Last modified a year ago)
-1

ESET Web/Parental Control Module domains (DNS)

PCRE2 (PHP >=7.3)
Match ESET Web/Parental Control Module domains for exclusion from DNS logs
Submitted by kernelmustard - a year ago
0

ESET Password Manager domains (DNS)

PCRE2 (PHP >=7.3)
Match ESET Password Manager domains for exclusion from DNS logs
Submitted by kernelmustard - a year ago (Last modified a year ago)
-1

ESET Antispam Module v3 domains (DNS)

PCRE2 (PHP >=7.3)
Match ESET Antispam Module v3 domains for exclusion from DNS logs
Submitted by kernelmustard - a year ago (Last modified a year ago)
-1

ESET Antispam Module v4/5 domains (DNS)

PCRE2 (PHP >=7.3)
Match ESET Antispam Module v4/5 domains for exclusion from DNS logs
Submitted by kernelmustard - a year ago (Last modified a year ago)
0

ESET Mail Security Antispam module domains (DNS)

PCRE2 (PHP >=7.3)
Match ESET Mail Security Antispam module domains for exclusion from DNS logs
Submitted by kernelmustard - a year ago (Last modified a year ago)
-1

ESET main window link domains (DNS)

PCRE2 (PHP >=7.3)
Match ESET main window link domains for exclusion from DNS logs
Submitted by kernelmustard - a year ago (Last modified a year ago)
-1

ESET Mobile Security activation domains (DNS)

PCRE2 (PHP >=7.3)
Match ESET Mobile Security activation domains for exclusion from DNS logs
Submitted by kernelmustard - a year ago (Last modified a year ago)
0

ESET Mobile Security activation URI (HTTP)

PCRE2 (PHP >=7.3)
Match the ESET Mobile Security activation URI for exclusion from HTTP logs
Submitted by kernelmustard - a year ago (Last modified a year ago)
0

Options symbol parse

ECMAScript (JavaScript)
parse option symbol
Submitted by anonymous - a year ago
0

IP address validation

PCRE2 (PHP >=7.3)
IP address validation
Submitted by anonymous - a year ago
0

Auto sentence capitalization

PCRE2 (PHP >=7.3)
only works in implementations with \U
Submitted by anonymous - a year ago (Last modified a year ago)
0

Match XML Comment

PCRE2 (PHP >=7.3)
Match any XML comment in an XML Document
Submitted by Anthony Bateman - a year ago
0

Special character finder

PCRE2 (PHP >=7.3)
yep
Submitted by anonymous - a year ago
0

001~999之间的整数

Python
匹配001~999之间的整数
Submitted by jgx - a year ago
0

Kaspersky Security Center update domains (HTTP)

PCRE2 (PHP >=7.3)
Match Kaspersky Security Center update domains for exclusion from HTTP logs
Submitted by kernelmustard - a year ago (Last modified a year ago)
1...894895896897898...901

Community Library Entry

1

Regular Expression
PCRE2 (PHP >=7.3)

/
^ # Uncomment to allow prefix continuation (second letter of a dangling match) # ([abcdefghiklmnoprstuvy\ ])? ( \ |(?: # Single-letter elements [BCFHIKNOPSUVWY] ) |(?: # Two-letter elements. (?:A[cglmrstu])|(?:B[aehikr])|(?:C[adeflmnorsu])|(?:D[bsy]) | (?:E[rsu])|(?:F[elmr])|(?:G[ade])|(?:H[efgos])|(?:I[nr]) | (?:K[r])|(?:L[airuv])|(?:M[cdgnot])|(?:N[abdehiop]) | (?:O[gs])|(?:P[abdmortu])|(?:R[abefghnu])|(?:S[bcegimnr]) | (?:T[abcehilms])|(?:X[e])|(?:Yb)|(?:Z[nr]) ) |(?: # Smushed trigrams. No need to go past trigrams because two twos make four (?:A(?:ga|gd|ge|la|lr|md|mg|mt|ra|re|rg|ta|te|tl|tm)) |(?:E(?:ra|re|rg)) |(?:G(?:ag|al|am|ar|at|er)) |(?:L(?:ag|al|am|ar|at|ra|re|rg)) |(?:M(?:ga|gd|ge|ta|te|tl|tm)) |(?:R(?:ag|al|am|ar|at|er|ga|gd|ge)) |(?:T(?:ag|al|am|ar|at|er|la|lr|md|mg|mt)) |(?:X(?:er)) |(?:Z(?:ra|re|rg)) ) # repeated any number of times )+ # Uncomment to allow last letter if it's a potential first letter of the next word # ([ADEGLMRTXZ]\ *)? $
/
gimx
Open regex in editor

Description

This will match only words that include chemical elements: H + Og + W + Ar + Ts but not Eton. It allows internal overlap: LaG = La + Ag, and allows the first letter or last letter to be the end/start of a symbol to allow chaining. You can easily remove the various pieces, though. A single-line (non-"extended") regex is at the bottom of the test string

Submitted by mrflip - 23 days ago (Last modified 23 days ago)