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·2019-12-14 07:25
Flavor·PCRE (Legacy)

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(?x) # Set intent level (?(DEFINE)(?<indent>[[:space:]]{4})) # Must start at new line ^ # Captures following statement's description comment lines if written (?<statementDescComment> (?: # Repeat below until next line not comment (?=(?P>indent)\/)\V*\v )+ )? # Generic Statement Capture (?<statement> # Const declaration capture (?<const> (?P>indent)const[[:space:]]*\([[:space:]]* \v (?: (?!(?P>indent)\))\V*\v )* (?P>indent)\) ) | # Full function declaration capture (?<func> # Function declaration initialization (?<funcDecLine> (?P>indent)func\V+ )\v # Repeat subcapture until line starting with close bracket (?: (?!(?P>indent)\})\V*\v )* # Closing bracket (?<funcCloseBracket>(?P>indent)\}) ) | (?<type> # Type Declaration # Check before wasting time (?=(?P>indent)type) # Short Form (?<typeDecShort> (?P>indent)type\V+[^\{]\v ) | # Longer Form (Brackted) (?<typeDecLong> (?P>indent)type\V+ )\v # Repeat subcapture until line starting with close bracket (?: (?!(?P>indent)\})\V*\v )* # Closing bracket (?<typeCloseBracket>(?P>indent)\}) ) )
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gm
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Description

Intended for commenting out a source file in a more targeted/formatted manner—makes folding and navigation easiers while annotating (substitution is wrapping each statement in block comments.)

Submitted by anonymous