Regular Expressions 101

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Search among 15,380 community submitted regex patterns...

1

password regex (strict)

ECMAScript (JavaScript)

Synopsis The subject password must fullfill several criterias to ensure it's have an acceptable level of minimal security. Success criterias contains at least 1 number (0-9) contains at least 1 uppercase letters...

Submitted by Soma Szelpal - 4 days ago (Last modified 4 days ago)

1

Semver 2.0.0 (with numbered capture groups)

PCRE2 (PHP >=7.3)

Semver 2.0.0 with numbered capture groups instead (so cg1 = major, cg2 = minor, cg3 = patch, cg4 = prerelease and cg5 = buildmetadata) that is compatible with ECMA Script (JavaScript), PCRE (Perl Compatible Regular Expressions, i.e. Perl, PHP and R), Python and Go. Source: https://semver.org/

Submitted by Soma Szelpal - 4 days ago

1

semver 2.0.0 regex (named groups)

PCRE2 (PHP >=7.3)

Semver 2.0.0 rwith named groups for those systems that support them (PCRE [Perl Compatible Regular Expressions, i.e. Perl, PHP and R], Python and Go). Source: https://semver.org/

Submitted by Soma Szelpal - 4 days ago (Last modified 4 days ago)

1

Search users

PCRE2 (PHP >=7.3)

Wyszukuje użytkowników według imienia lub nazwiska lub imienia i nazwiska. Jeżeli na początku nie ma spacji i jest tylko jedno słowo, to szukane jest po imie. Jeżeli na początku jest spacja i jest tylko 1 słowo, to szukane jest według nazwiska. Jeśli są tylko 2 słowa, pierwsze słowo to imię, a drugi...

Submitted by Mykhailo Hulii - 5 days ago

1

Markdown images with preview

PCRE2 (PHP >=7.3)

Markdown Images with preview

Submitted by anonymous - 5 days ago (Last modified 5 days ago)

1

potential react or next component names from folder name

PCRE2 (PHP >=7.3)

this regex can be used to generate a potential component name out of a folder name NEXT js complient

Submitted by Jean Luc Emmanuel VERHANNEMAN - 5 days ago

1

Iraqi phone number validation regular expression (RegEx)

PCRE2 (PHP >=7.3)

It must be 10 or 11 digits (with optional leading zero). It must start with 7 (After leading zero) Supporting 5 telecom operators: Zain Iraq (079, 078) Asiacell (077) Korek Telecom (075)...

Submitted by Areeb Al-Quraishi - 5 days ago (Last modified 5 days ago)

1

Renamer Log file to CSV

PCRE (PHP <7.3)

Catches our log files renamed file names and adds them to CSV file

Submitted by anonymous - 6 days ago

1

Match verbose, comma delimited, 64-bit hexadecimal, as sent by an ESP32 via the DallasTemperature getAddress method, for DS18B20 temperature sensors.

PCRE2 (PHP >=7.3)

Match a verbose, comma delimited, 64-bit hexadecimal, as sent by an ESP32, via the DallasTemperature getAddress method, for a DS18B20 temperature sensor. Used in Google Sheets, or Excel, Data Validation, after copying and pasting the input string from the Serial Monitor. The ESP32 interrogates the...

Submitted by CharlesMartel732 - 7 days ago

1

IsNumeric Test

PCRE2 (PHP >=7.3)

Tests for any value that can be converted to a T-SQL numeric type.

Submitted by Noel Cruz - 8 days ago

1

Match Ports

PCRE2 (PHP >=7.3)

Match all Ports except 20,21,23,137,1378,139

Submitted by anonymous - 8 days ago

1

Simple EIN (Employee Identification Number) format

ECMAScript (JavaScript)

An Employer Identification Number (EIN) is also known as a Federal Tax Identification Number, and is used to identify a business entity. Generally, businesses need an EIN. It expects 2 digits at start, then a dash ('-') and then 7 digits. No assumptions regarding the allowed prefixes, etc.

Submitted by @uazure - 8 days ago

1

Schaefer atlas extract labels

PCRE2 (PHP >=7.3)

Extract information about hemisphere and region name from Schaefer atlas labels. Personally I use this for nilearn.datasets.fetch_atlas_schaefer_2018 function where I access the labels property of the resulting variable, but you do you.

Submitted by Julia Marcinkowska - 9 days ago

1

Contraction-inclusive Word Pattern

PCRE2 (PHP >=7.3)

This regex will take both regular words and contractions

Submitted by anonymous - 11 days ago

1

Number Expr

ECMAScript (JavaScript)

A "raw" expression matching numbers; anything from a simple 123 to -123,456.78e90 will be matched. Note: this may be vulnerable to ReDoS attacks when long multiline entries are available & a few hundered (or thousand depending on the length of the input) steps is a problem; check the Regex Debugger...

Submitted by expo.moe - 12 days ago (Last modified 12 days ago)

1

Even or uneven

PCRE2 (PHP >=7.3)

matches if the string is an even integer

Submitted by Holz - 13 days ago

1

first

PCRE2 (PHP >=7.3)

Submitted by anonymous - 14 days ago

1

T-SQL find text blocks in script

PCRE2 (PHP >=7.3)

Finds the text blocks in a t-sql (tsql) script

Submitted by Paw Jershauge - 15 days ago

1

T-SQL find comments in script

PCRE2 (PHP >=7.3)

Converts the outcome from an SQL Agent Log (one liner) to multi lines, for easy read

Submitted by Paw Jershauge - 15 days ago (Last modified 15 days ago)

1

Date regex

PCRE2 (PHP >=7.3)

Submitted by anonymous - 16 days ago

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Extract Fields from Messages.app Selected Chat

0

Regular Expression
PCRE (PHP <7.3)

/

^(.+?)\. Last message: (.+\.?) (\w[^AMP].+?)\.$

/

gmi

Open regex in editor

Description

Use AppleScript to get the Chat Description from the selected Chat. That is the source text for this RegEx.

This RegEx extracts the following fields: • Buddy Name (or Phone# or Ref# if Buddy is NOT a Contact) • Last Message • Date/Time of last message.

The ending of the Chat Description can vary a lot. • It may, or may NOT be preceded with a period. • Date/Time may be any of: • Date only • Time only • Relative date, like "Yesterday"

Submitted by JMichaelTX - 7 years ago