Regular Expressions 101

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Community Patterns

1

credit number hider

PCRE2 (PHP >=7.3)
Hides credit card numbers from 13-16 digits
Submitted by anonymous - 6 months ago
1

Blurring 13-16 digits

PCRE2 (PHP >=7.3)
Blurring 13-16 digits
Submitted by anonymous - 6 months ago
1

JWT pattern

ECMAScript (JavaScript)
handles both JWS (3 segments) and JWE (5 segments) remove the ending (?:(?:... to handle JWS only segments 1+2 are expected tp start with e[yw], an encoded start of JSON object {" or {\n remove/extend it to match used token structure or make it even more restrictive (ey[IJ]|ewo) to match encod...
Submitted by iki - 6 months ago (Last modified 5 months ago)
1

How to find invoice number behind words containing "訂單"

PCRE2 (PHP >=7.3)
I need help to find invoice number following words among which contains "訂單". There are also numbers (price and cost) behind (but not immediately) same word "訂單"
Submitted by sunny - 6 months ago
1

tmp_4679_DBGSSE_WAR_Optionsscheine_Type1_Table

PCRE2 (PHP >=7.3)
tmp saved to work on it further ...
Submitted by mhergh - 6 months ago
1

Tenable Identity Exposure - Indicator of Attack - Syslog regex

PCRE2 (PHP >=7.3)
A regex for IOA syslog messages sent by Tenable Identity Exposure.
Submitted by Taher Karaki - 6 months ago
1

appstoreoptimizationtool

PCRE2 (PHP >=7.3)
App Store Optimization Tool
Submitted by appvector - 6 months ago
1

Match all and only Emoji

ECMAScript (JavaScript)
Purpose I wanted to make a regex that just works. This is it for ECMAScript engines. Capabilities ...
Submitted by anonymous - 6 months ago
1

Happy birthday

PCRE2 (PHP >=7.3)
happy birthday with various variations
Submitted by AdiGro - 6 months ago
1

Log Match

PCRE2 (PHP >=7.3)
test
Submitted by Mohammad - 6 months ago
1

Find comments in Kotlin

PCRE2 (PHP >=7.3)
Finds comments in Kotlin but not inline comments
Submitted by anonymous - 6 months ago
1

й

PCRE2 (PHP >=7.3)
й
Submitted by anonymous - 6 months ago
1

Metadata page number

PCRE2 (PHP >=7.3)
This describes how to fetch data from a customized tag
Submitted by anonymous - 6 months ago
1

Dockerfile: Match a single RUN statement including all line continuations

PCRE2 (PHP >=7.3)
This will match the first RUN statement in a Dockerfile and capture all lines in that RUN statement (including those where the line continuation operator '\' is used on the previous line.)
Submitted by Russ Frizzell-Carlton - 6 months ago
1

Russian car plate

PCRE2 (PHP >=7.3)
Regular expression for matching Russian car plate without region part
Submitted by aalexren - 6 months ago
1

Russian car plate for Python

Python
Regex for matching Russian car plate without region
Submitted by aalexren - 6 months ago
1

ads on telewebion.com

PCRE2 (PHP >=7.3)
ads to block on telewebion.com
Submitted by Aquarii11 - 6 months ago
1

Select formula content without '='

PCRE2 (PHP >=7.3)
RegEX: (? | lub |
Submitted by Piotr Osada - 6 months ago
1

Hugging Face NLP Tokenization

PCRE2 (PHP >=7.3)
https://huggingface.co/learn/nlp-course/chapter2/4?fw=pt
Submitted by anonymous - 6 months ago
1

Email validation regex

PCRE2 (PHP >=7.3)
Email validation Explanation ^(?!.*@.*@) Asserts that the string does not contain two consecutive “@” symbols. ...
Submitted by Cxbersxnic - 6 months ago
1...354355356357358...902

Community Library Entry

1

Regular Expression
ECMAScript (JavaScript)

/
e[yw][A-Za-z0-9-_]+\.(?:e[yw][A-Za-z0-9-_]+)?\.[A-Za-z0-9-_]{2,}(?:(?:\.[A-Za-z0-9-_]{2,}){2})?
/
g
Open regex in editor

Description

  • handles both JWS (3 segments) and JWE (5 segments)
    • remove the ending (?:(?:... to handle JWS only
  • segments 1+2 are expected tp start with e[yw], an encoded start of JSON object {" or {\n
    • remove/extend it to match used token structure
    • or make it even more restrictive (ey[IJ]|ewo) to match encoded {"\w or {\n"
  • payload (2nd segment) may be empty
  • both header (1st segment) and payload are expected to start with eyJ, a base64 encoded start of JSON object {"
  • accepts only proper Base64url encoding (RFC 4648) without Base64 padding =
  • test it at https://regex101.com/r/V99DS0
Submitted by iki - 6 months ago (Last modified 5 months ago)