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

3

Regular Expression
Created·2019-06-13 12:08
Flavor·PCRE (Legacy)

/
(?(DEFINE) (?<decimal>(?(int)([.][0-9]+)?|[.][0-9]+)) (?<percentage> (100| (?<int>([0-9]|[1-9][0-9]))? # Have integer be optional (0-100 only) (?P>decimal) # Have decimal required when an integer is not included ) (?<symbol>%) ) (?<hue> (?<int>36[0]|3[0-5][0-9]|[12][0-9][0-9]|[1-9]?[0-9])? # Have integer be optional (?P>decimal) # Have decimal required when an integer is not included (?<symbol>\s*deg\s*)? ) (?<alpha> (?(alpha),\s*( 1[.]0| (?<int>0)? # Have integer be optional (?P>decimal) # Have decimal required when integer is not incldue )\s*) ) (?<hsl>\s*(?P>hue)\s*,\s*(?P>percentage)\s*,\s*(?P>percentage)\s*) ) hsl(?<alpha>a)?\((?P>hsl)(?P>alpha)\)
/
gxJi
Open regex in editor

Description

This allows for both hsl and hsla color patterns to be matched. hsla(50.5deg, .531%, .9%, 1.0)

  • The hue can be matched without the word deg.
  • Hue is from 0-360
  • Percentage allows for decimals.
  • Percentage is from 0-100%
  • Alpha is from 0.0-1.0
Submitted by anonymous