Regular Expressions 101

Order By

Sponsors
There are currently no sponsors. Become a sponsor today!

Community Patterns

0

Register immediate addressing with number or symbol for displacement

PCRE (PHP <7.3)
Register bank of r0-r7 with l/h accessibility. Displacement is either a +/- decimal or symbol starting with _ or small/large letter and containing letters, numbers and _.
Submitted by anonymous - 5 years ago
0

EIM non location spreads

PCRE (PHP <7.3)
handles atomic and combined tenor
Submitted by anonymous - 5 years ago
0

Oracle Flashback Data Archive table name

PCRE (PHP <7.3)
Take SYS_FBA_TCRV_IDX1_36953 SYS_FBA_TCRV_36953 and pull out SYS_FBA_ and _36963
Submitted by anonymous - 5 years ago
0

Excel tab name cleaner

PCRE (PHP <7.3)
Take a tab name and change invalid characters and squeezing them into a single space character. The character class ...
Submitted by anonymous - 5 years ago
0

Parse get_version output including SVN Keywords

PCRE (PHP <7.3)
Grabs all but last SVN keyword. Uses "," as delimiter (need to get rid of (Wed 26 Aug 2018) first) PL/SQL: Unit: ZIP_UTIL_PKG, type: PACKAGE BODY. Code Type: NATIVE. SVN: File date: $Date: 2019-08-26 10:28:11 -0500 $, Revision: $Revision: 18213 $, $Author: mark.s $.
Submitted by anonymous - 5 years ago
0

Oracle Flashback Data Archive table name

PCRE (PHP <7.3)
Take SYS_FBA_TCRV_IDX1_36953 SYS_FBA_TCRV_36953 and pull out SYS_FBA_ and _36963
Submitted by anonymous - 5 years ago
0

ESIC number format regex

PCRE (PHP <7.3)
It captures the ESIC number explained which format is explained here https://www.quora.com/How-is-the-format-of-the-ESIC-code.
Submitted by anonymous - 5 years ago
0

EPF Account Number regex

PCRE (PHP <7.3)
matches the format of EPF number. For further details visit here https://www.bankbazaar.com/saving-schemes/all-about-the-employee-pf-account-number.html#format
Submitted by anonymous - 5 years ago
0

Nombres con espacios

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 5 years ago
0

RANSW

Python
NSW is different to other states (see red text)
Submitted by anonymous - 5 years ago
0

Formatos numericos FNC

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 5 years ago
0

@var annotation regexp

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 5 years ago
0

Initial regex

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 5 years ago
0

Filter for Twitter Posts

Python
To remove @recipient and other funny characters
Submitted by anonymous - 5 years ago
0

BEM

ECMAScript (JavaScript)
A variety of BEM flavoured regex.
Submitted by anonymous - 5 years ago
0

Leis, artigos e parágrafos

Python
no description available
Submitted by anonymous - 5 years ago
0

IPv4 - Single Octet

PCRE (PHP <7.3)
Matches a string of digits between 0 and 255.
Submitted by anonymous - 5 years ago
0

IPv4 - v2

PCRE (PHP <7.3)
Matches a string of digits between 0 and 255.
Submitted by anonymous - 5 years ago
0

文本分段（根据标点符号）

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 5 years ago
0

Air traveler document SSR

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 5 years ago
1...268269270271272...902

Community Library Entry

0

Regular Expression
PCRE (PHP <7.3)

/
^(?<Scheme>[file|ftp|https{0,1}|ldap|telnet]+:\/{2})?(?<Subdomain>[a-zA-Z0-9-]{0,4}\.)?(?<Domain>\w+\.\w+\.?\w+\/)(?<Subdirectory>@[\w.]+\/)?(?<Path>[\w_~.-]+\/?[\w_-]+\/{0,1}?[\w_~.-]+)(?<Query>[%?&;].[\w&_~.=-]+)?(?<Fragment>#?[\/\w_-~.,=&-]+)?$
/
gm
Open regex in editor

Description

This regular expression parses URLs and captures their subcomponents.

  • ${1} ==> Scheme/Protocol
  • ${2} ==> Subdomain
  • ${3} ==> Domain name
  • ${4} ==> Subdirectory
  • ${5} ==> Path
  • ${6} ==> Query
  • ${7} ==> Fragment

It ignores port numbers. Port numbers are necessary. But, they are rarely visible in URLs. When used in a URL, it comes after the TLD separated by a colon. When using HTTP, port 80 is standard. For HTTPS, use port 443.

Submitted by Syd Salmon - 5 years ago