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·2024-03-12 13:29
Flavor·JavaScript

/
^(?:(?<LEADING_PUNCT>\+?[-. (]*)(?<COUNTRY_CODE>\d{1,3}))?(?<OPT_DELIM_1>[-. )(]*)(?<AREA_CODE>\d{1,3})?(?<OPT_DELIM_2>[-. )(]*)(?<PREFIX>\d{3})(?<OPT_DELIM_3>[-. )(]*)(?<SUFFIX>\d{4})$
/
gm
Open regex in editor

Description

Explanation

Breaks out a phone number input into the following named segments:

Opt?   Matches            Name             Desc
 Y     (+ - . :space:)    LEADING_PUNCT    Leading Punctuation
 Y     1-3 Digits (0-9)   COUNTRY_CODE     International country code (US: '1')
 Y     (- . :space:)      OPT_DELIM_1      Delimiting Punctuation
 Y     1-3 Digits (0-9)   AREA_CODE        Area Code/Regional Routing Code
 Y     (- . :space:)      OPT_DELIM_2      Delimiting Punctuation
 N     3 Digits (0-9)     PREFIX           Number Prefix (First 3 Numbers)
 Y     (- . :space:)      OPT_DELIM_3      Delimiting Punctuation
 N     4 Digits (0-9)     SUFFIX           Number Suffix (Last 4 Numbers)

Usage

Because the groups are named ((?<NAME_OF_GROUP>...)), this is expected to be used with the matchAll method on the String prototype in JS (MDN: String.prototype.matchAll()):

const StringToParse = "(213) 555-1212";
[...StringToParse.matchAll(RegexExpressionFromThisEntry)][0].groups
// Result: {
//    OPT_DELIM_1: '(', 
//    AREA_CODE: '213', 
//    OPT_DELIM_2: ') ', 
//    PREFIX: '555', 
//    OPT_DEMLIM_3: '-', 
//    SUFFIX: '1212'
//}

Note: If your country has a format I've not addressed, please let me know!

Submitted by @JJ/ZenAtWork NerdyDeeds, LLC