Regular Expressions 101

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Community Patterns

1

Smoke Detector Regex

Python
Parses Smokey messages
Submitted by Eyeballcode - 9 years ago
1

Capture if pattern NOT found

PCRE (PHP <7.3)
Capture the input if the pattern is NOT found
Submitted by Byron Jones - 9 years ago
1

replace comma's between quoted text in csv

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
1

Change Table names

PCRE (PHP <7.3)
no description available
Submitted by Andrea - 9 years ago
1

Words with only one spacing

PCRE (PHP <7.3)
Names with only one spacing allowed in between words.
Submitted by Pavan Kataria - 9 years ago
1

123

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
1

^([a-zA-Z1-9]{1})([a-zA-Z0-9])+:$

ECMAScript (JavaScript)
hexa deciamal number with ending with ( :) a special character
Submitted by anusha - 9 years ago
1

Validate multiple Email-addresses separated by semicolon

PCRE (PHP <7.3)
Validate multiple Email-addresses separated by semicolon. No check on allowed domains, just a plain and simple check on the correct structure
Submitted by maxthelup - 9 years ago
1

IBAN (with spaces)

PCRE (PHP <7.3)
This matches EU IBAN codes considering spaces here and there
Submitted by ZioAldo - 9 years ago (Last modified a year ago)
1

Date time AM/PM validation

PCRE (PHP <7.3)
no description available
Submitted by vladimir - 9 years ago
1

BNF for specific URL schemes (httpurl) from rfc1738

Python
This regex represents the httpurl in BNF from rfc1738 (at topic 5). Reference:https://www.ietf.org/rfc/rfc1738.txt
Submitted by Migueh - 9 years ago
1

localhost ip's with port

Python
Matches localhost ip range with optional port capture: 127.X.X.X or 127.X.X.X:PORT ToDo: check valid ip address.
Submitted by Rodrigo M. A. - 9 years ago
1

Trim Whitespace before/after String

ECMAScript (JavaScript)
Remove whitespace before and after the string. Use g for trimming before and after Use m for trimming each line of a multiline string individually. Code: ' test '.replace( /(^\s+|\s+$)/gm, '' );
Submitted by KevinV - 9 years ago
1

[\d]*

PCRE (PHP <7.3)
kostix@mail.ru
Submitted by anonymous - 9 years ago
1

Look Forward

Python
Between two strings.
Submitted by Online Cop - 9 years ago
1

US Phone Number Format Check

PCRE (PHP <7.3)
All Valid: 3334444 222333444 12223334444 333-4444 222-333-4444...
Submitted by anonymous - 9 years ago
1

Read PHPDoc as (key => value) like Wordpress plugins

PCRE (PHP <7.3)
[a-zA-Z0-9]+)\\s{1,}(?P.*)/im"; $str = "/\n@author Marian Gabriel\n@route /page/contact\n@name Contact Plugin\n@version 0.1beta\n@company VMG\n@type Page\n/\n\n"; preg_match_all($re, $str, $matches); function getValue($attr, $matches) {...
Submitted by Marian Gabriel - 9 years ago
1

5

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
1

7

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
1

10

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
1...6061626364...901

Community Library Entry

1

Regular Expression
Python

r"
^((http:\/\/)?(((([\w\d]|[\w\d][\w\d\-]*[\w\d])\.)*((\w|\w[\w\d\-]*[\w\d]))*(\:\d+)+?)(\/[\w\;\:\@\&\=]*[\/[\w\;\:\@\&\=]*]*(\?[\w\;\:\@\&\=]*)?)))$
"
m
Open regex in editor

Description

This regex represents the httpurl in BNF from rfc1738 (at topic 5). Reference:https://www.ietf.org/rfc/rfc1738.txt

Submitted by Migueh - 9 years ago