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

1

Regular Expression
Created·2022-02-26 01:01
Flavor·PCRE2 (PHP)

/
(?'gPatSyslogPRI'<\d+>) (?'gPatMesgBody'.*) (?'gPatMesgBodyMin'.*?) (?'gPatSyslogNGHeader'\w{3}\s+\d{1,2}\s\d{1,2}:\d{1,2}:\d{1,2}\s\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}) (?'gPatMon'Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec|\d{1,2}) (?'gPatMonNum'\d{1,2}) (?'gPatDay'\d{1,2}) (?'gPatTime'\d{1,2}:\d{1,2}:\d{1,2}) (?'gPatYear'\d{2,4}) (?'gPatMSec'\d{1,3}) (?'gPatTimeMSec'\d{1,2}:\d{1,2}:\d{1,2}\.\d{1,3}) (?'gPatTimeZone'Z|UTC|[+-]\d{1,2}:?\d{2}) (?'gPatWeekday'Mon|Tue|Wed|Thu|Fri|Sat|Sun) (?'gPatIpV4Dot'\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}) (?'gPatIpAddr'[0-9A-Fa-f]{0,4}(?::[0-9A-Fa-f]{0,4}){1,5}:(?:\d{1,3}(?:\.\d{1,3}){3}|[0-9A-Fa-f]{0,4}(?::[0-9A-Fa-f]{0,4})?)|\d{1,3}(?:\.\d{1,3}){3}) (?'gPatIpPort'\d{1,5}) (?'gPatProto'ftp|icmp|tcp|udp|http|ip|smb|smtp|snmp|others|FTP|ICMP|UDP|TCP|HTTP|IP|SMB|SMTP|SNMP|OTHERS) (?'gPatFqdn'\w+[.\w+]+) (?'gPatWord'\w+) (?'gPatStr'[^\s]*) (?'gPatHostName'[\w.-]+) (?'gPatStrComma'[^,]*) (?'gPatStrLeftParen'[^\(]*) (?'gPatStrRightSB'[^\]]*) (?'gPatInt'\d+) (?'gPatSpace'\s+) (?'gPatStrEndColon'[^:]*) (?'gPatStrSQ'[^']*) (?'gPatStrDQ'[^']*) (?'gPatSentence'\w[\s+\w]*)
/
gm
Open regex in editor

Description

This is pre-built Global Pat for FortiSiem

Submitted by Ken