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

2

Regular Expression
Created·2021-12-03 04:55
Flavor·JavaScript

/
^\s*(color|background[-color]*||[a-zA-Z0-9-_]+)??[\s:=]*[\s]*(?:(\b(rgb)\s*?\(\s*?(000|0?\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\s*?,\s*?(000|0?\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\s*?,\s*?(000|0?\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\s*?\))|(\b(rgba)\s*?\(\s*?(000|0?\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\s*?,\s*?(000|0?\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\s*?,\s*?(000|0?\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\s*?,\s*?(0|0\.\d*|1|1.0*)\s*?\))\B|(\b(transparent)|(inherit)|(initial)|(currentColor)|(var)[(]([-]{2}[^)]+)[)])|(#([a-fA-F0-9]){3,4})|(#([a-fA-F0-9]){6,8})|(\b(hsl)\s*?\(\s*?(000|0?\d{1,2}|[1-2]\d\d|3[0-5]\d|360)\s*?,\s*?(000|100|0?\d{2}|0?0?\d)%\s*?,\s*?(000|100|0?\d{2}|0?0?\d)%\s*?\)$)|(\b(hsla)\s*?\(\s*?(000|0?\d{1,2}|[1-2]\d\d|3[0-5]\d|360)\s*?,\s*?(000|100|0?\d{2}|0?0?\d)%\s*?,\s*?(000|100|0?\d{2}|0?0?\d)%\s*?,\s*?(0|0\.\d*|1|1.0*)\s*?\)\b))
/
gm
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Description

Versatile, multiline matching of CSS colors of many common formats, including:

  • HEX-3: #123 (equivalent to #112233)
  • HEX-4: #FA0F ( ... #FFAA00FF)
  • HEX-6: #FF3300 ( ...#F30)
  • HEX-8: #FFAA00FF ( ...#FA0F)
  • RGB: rgb(0, 0, 0)
  • RGBA: rgba(255, 255, 255, 1.0)
  • HSL: hsl(100, 50%, 50%)
  • HSLA: hsla(100, 20%, 20%, 1.0)
  • Vars: var(--tw-color-name, #000000)
  • Misc: color: inherit; color: currentColor; color: initial;, etc.
  • With or without trailing semicolon or comma
  • Forgiving of whitespace issues
  • Allows property/declaration names (e.g. color: #fff), most other solutions do not.
Submitted by Nicholas Berlette (@nberlette)