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·2014-06-04 11:46
Flavor·PCRE (Legacy)

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^((([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])))$
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Description

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

Submitted by Punit Pal