Regular Expressions 101

Community Patterns

22

Get path from any text

Created·2023-01-31 14:38
Updated·2023-07-23 20:17
Flavor·PCRE2 (PHP)
Recommended·
Get path (windows style) from any type of text (error message, e-mail corps ...), quoted or not. THIS IS THE SINGLE LINE VERSION ! If you want understand how it work or edit it, go https://regex101.com/r/7o2fyy Relative path are not supported The goal is to catch what "Look like" a path. See the limitations UNC path and prefix path like //./], [//?/] or [//./UNC/] are allowed some url path like [file:///C:/] or [file://] are allowed Catch path quoted with ["] and [']. But these quotes are include with the catch Quoted path is not concerned by limitations Limitations : (only unquoted path) [dot] and [space] is allowed, but not in a row [dot+space] or [space+dot at end of file name isn't catched INSIDE A NAME FILE (or last directory if it is a path to a directory) : [comma] is not supported (it stop the catch) after a first [dot], any [space] stop the catch after a [space], catch is stoped if next character is not a [letter], [digit] or [-] so, double [space] stop the catch Compatibility compatible PCRE, PCRE2 AutoHotkey : don't forget to escape "%" in "`%" /!\ Powershell and .Net /!\\ : this regex need some modification to be interpreted by powershell. You have to replace each (?&CapturGroupName) by \k. Use this powershell code to do this replacement : ` $powershellRegex = @' [Put here the regex to replace (?&CapturGroupName) with \k] '@ -replace '\(\?&(\w+)\)', '\k' ` This example code must return : [Put here the regex to replace \k with \k]
Submitted by nitrateag

Community Library Entry

0

Regular Expression
Created·2018-06-20 19:38
Flavor·PCRE (Legacy)

/
^(?:((?:16|[357][26]|[2468][048])(?:[0248][048]|[13579][26])|(?:1[6-9]|[2-9][0-9])(?:0[48]|[13579][26]|[2468][048])|(?:15)(?:84|9[048]))([\-.\/])(?:(0?[13578]|1[02])(?:\2)(0?[1-9]|[12][0-9]|3[01])|(0?[469]|11)(?:\2)(0?[1-9]|[12][0-9]|30)|(0?2)(?:\2)(0?[1-9]|[12][0-9]))|((?:16|[357][26]|[2468][048])(?:0[1235679]|[13579][01345789]|[2468][1235679])|(?:1[789]|[35679][01345789]|[248][12345679])(?:0[01235679]|[13579][01345789]|[2468][1235679])|(?:15)(?:8[235679]|9[01345789]))([\-.\/])(?:(0?[13578]|1[02])(?:\10)(0?[1-9]|[12][0-9]|3[01])|(0?[469]|11)(?:\10)(0?[1-9]|[12][0-9]|30)|(0?2)(?:\10)(0?[1-9]|1[0-9]|2[0-8])))$
/
gm
Open regex in editor

Description

validates any date in yyyy-M-d format from 1581-01-01 to 9999-12-31, allowed delimiters are "/", "." and "-"

Submitted by anonymous