Regular Expressions 101

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Community Patterns

-1

ISO 8601 datetime for Forecast.io API

PCRE (PHP <7.3)
Should match ISO 8601 datetime for Forecast.io API: [YYYY]-[MM]-[DD]T[HH]:[MM]:[SS] with an optional time zone formatted as Z for GMT time or {+,-}HH (with or without separating colon) for an offset
Submitted by Clifford Paulick - 9 years ago
-1

Regex to find begin and end of a HTML tag with a certain class

PCRE (PHP <7.3)
The regex finds for example the random text sequence, if ohne single quotes ar used. The td itself may vary (td, div, span, p and so on), the provided class ist the item searched vor.
Submitted by xm318 - 9 years ago
-1

Only letters without numbers

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 9 years ago
-1

Arabic AlphaNumeric

ECMAScript (JavaScript)
Arabic AlphaNumeric text
Submitted by Ahmed - 9 years ago
-1

Sri Lankan NIC Regex

ECMAScript (JavaScript)
Regular Expression to validate NIC of Sri lankna (National Identity Card)
Submitted by Sithira Munasinghe - 8 years ago
-1

IPv4 Matcher

Java 8
This RE is divided into four parts. The first three parts are acceptable numbers from 0 to 255 followed by "." The last part is an acceptable number but not followed by "."
Submitted by EMAM1999 - 4 years ago
-1

rtrtr

Golang
gtgtg
Submitted by anonymous - 4 years ago
-1

T

PCRE2 (PHP >=7.3)
T
Submitted by me - 3 years ago
-1

Discord name with both old and new name support

PCRE2 (PHP >=7.3)
This discord regex supports both the new and the old version of discord names. Old: NAME#[0001-9999] Between 2 and 32 characters....
Submitted by Fy17 - 2 years ago
-3

regex help

PCRE (PHP <7.3)
help please. i need regex,
Submitted by James - 10 years ago
-3

Strict email validation

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 10 years ago
-3

Remove special character at first position of string

PCRE (PHP <7.3)
This search for special character at first position in the string
Submitted by anonymous - 9 years ago
-3

retrieve hostname without subdomain

PCRE (PHP <7.3)
no description available
Submitted by Diego Zuluaga - 9 years ago
-3

TD data from html table

Python
no description available
Submitted by Deepak Bansal - 9 years ago
0

Verify and match e-mail address

PCRE (PHP <7.3)
no description available
Submitted by Josh K - 11 years ago
0

Simple

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 11 years ago
0

Dotted-decimal IPv4 address

PCRE (PHP <7.3)
Validates an IPv4 address for use as a URI host as defined in RFC-3986.
Submitted by ezzatron - 11 years ago
0

Grab text in double square brackets (excluding triple)

PCRE (PHP <7.3)
no description available
Submitted by Petah - 11 years ago
0

Date with this format YYYY-MM-DD and year start 20 or 21

PCRE (PHP <7.3)
Date with this format YYYY-MM-DD and year start 20 or 21 like 2014-12-12
Submitted by cisc0 - 11 years ago
0

IMAP Status Response with MESSAGE and UNSEEN count

PCRE (PHP <7.3)
Matches the folder name (as IMAP ATOM, Quoted String or Literal String) and folder message total and unseen count.
Submitted by Mike Johnson - 11 years ago
1...533534535536537...902

Community Library Entry

0

Regular Expression
ECMAScript (JavaScript)

/
^P((\d+([,\.]\d+)?Y)?(\d+([,\.]\d+)?M)?(\d+([,\.]\d+)?D)?(T(\d+([,\.]\d+)?H)?(\d+([,\.]\d+)?M)?(\d+([,\.]\d+)?S)?)?$)|(\d+([,\.]\d+)?W$)
/
gm
Open regex in editor

Description

no description available

Submitted by anonymous - 6 years ago