Regular Expressions 101

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Community Patterns

0

Date Validator Regular Expression

PCRE (PHP <7.3)
Perfect Date validator from 1900-01-01 to 2013-12-31, all with leap years and perfect dates.
Submitted by Punit Pal - 10 years ago
1

ticket regexp

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 10 years ago
2

trim string

ECMAScript (JavaScript)
trim leading and trailing whitespace from a string
Submitted by Dave Atchley - 10 years ago
0

Matching values between square brackets

PCRE (PHP <7.3)
no description available
Submitted by Marius Schulz - 10 years ago
0

x

PCRE (PHP <7.3)
x
Submitted by x - 10 years ago
0

City and state validation

PCRE (PHP <7.3)
Validation when city and state are like in format city, state
Submitted by Adu - 11 years ago
1

Sentence grabber 2

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 11 years ago
8

Sentence grabber /w extra check

PCRE (PHP <7.3)
Grabs sentences including terms like: e.g. z.b. Figs.These get caught in 1st capturing group. Problem: how to only accept matching sentences which contain pattern \b\d+[a-z]{0,2}\b?
Submitted by light0 - 11 years ago
1

Sentence matching

PCRE (PHP <7.3)
Match sentences ignore e.g. Fig. z.b. etc
Submitted by anonymous - 11 years ago
1

Try ths

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 11 years ago
1

Linkedin profile matching regex

PCRE (PHP <7.3)
This a regex for matching linkedin profile URLs
Submitted by @antespi - 11 years ago
1

Signed integer

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

how I retrieve the domain without www or other cruft

Python
no description available
Submitted by bronsen - 11 years ago
0

easy Email Detection

PCRE (PHP <7.3)
easy Email Detection
Submitted by Max Mustermann - 11 years ago
1

example

Python
group matching
Submitted by anonymous - 11 years ago
1

I need to escape " in json, issue: if they are already escaped

PCRE (PHP <7.3)
I'm having issues escaping quotes inside json content. I can get the \" to be put in if " is seen, the issue is I don't want that to be done if \" is in the content (as that is already escaped)
Submitted by Patrick - 11 years ago
8

Extract Protocol, URL, URL Path, get parameters and hash from URI

Python
This is simplified from my last submission.
Submitted by Dale O'Brien - 11 years ago
1

Parse a HTML URL

Python
Break a URL into parts: protocol url path get parameters hash
Submitted by Dale O'Brien - 11 years ago
7

split URL into location-resource-params (JavaScript)

ECMAScript (JavaScript)
Extract resource location, name and query parameters from a URL (JavaScript version)
Submitted by cebence - 11 years ago
3

split URL into location-resource-params

PCRE (PHP <7.3)
Extract resource location, name and query parameters from a URL
Submitted by cebence - 11 years ago
1...887888889890891...901

Community Library Entry

0

Regular Expression
PCRE (PHP <7.3)

/
^((([1][9][0|2|4|6|8][0|4|8]|[1][9][1|3|5|7|9][2|6]|[2][0][0][0|4|8]|[2][0][1][2])[-|\\|\/|\.]([1][1-2]|[0][1|3|5|7|8])[-|\\|\/|\.]([0][1-9]|[1][0-9]|[2][0-9]|[3][0-1])|([1][9][0|2|4|6|8][0|4|8]|[1][9][1|3|5|7|9][2|6]|[2][0][0][0|4|8]|[2][0][1][2])[-|\\|\/|\.][0][2][-|\\|\/|\.]([0][1-9]|[1][0-9]|[2][0-9])|([1][9][0|2|4|6|8][0|4|8]|[1][9][1|3|5|7|9][2|6]|[2][0][0][0|4|8]|[2][0][1][2])[-|\\|\/|\.]([1][1]|[0][4|6|9])[-|\\|\/|\.]([0][1-9]|[1][0-9]|[2][0-9]|[2][0]))|(([1][9][0|2|4|6|8][1|2|3|5|6|7|9]|[1][9][1|3|5|7|9][0|1|3|4|5|7|8|9]|[2][0][0][1|2|3|5|6|7|9]|[2][0][1][0|1|3])[-|\\|\/|\.]([1][1-2]|[0][1|3|5|7|8])[-|\\|\/|\.]([0][1-9]|[1][0-9]|[2][0-9]|[3][0-1])|([1][9][0|2|4|6|8][1|2|3|5|6|7|9]|[1][9][1|3|5|7|9][0|1|3|4|5|7|8|9]|[2][0][0][1|2|3|5|6|7|9]|[2][0][1][0|1|3])[-|\\|\/|\.][0][2][-|\\|\/|\.]([0][1-9]|[1][0-9]|[2][0-8])|([1][9][0|2|4|6|8][1|2|3|5|6|7|9]|[1][9][1|3|5|7|9][0|1|3|4|5|7|8|9]|[2][0][0][1|2|3|5|6|7|9]|[2][0][1][0|1|3])[-|\\|\/|\.]([1][1]|[0][4|6|9])[-|\\|\/|\.]([0][1-9]|[1][0-9]|[2][0-9]|[2][0])))$
/
Open regex in editor

Description

Perfect Date validator from 1900-01-01 to 2013-12-31, all with leap years and perfect dates.

Submitted by Punit Pal - 10 years ago