File & Path

Unix File Path

Matches absolute Unix/Linux file paths.

Available in

JavaScript / ECMAScript code

jsJavaScript

const re = new RegExp("^(/[^/\\0]+)+/?$", "");
const input = "/home/user/documents";
const matches = [...input.matchAll(re)];
console.log(matches.map(m => m[0]));

Uses `String.prototype.matchAll` for global iteration (Node 12+ / all modern browsers).

Python (re) code

pyPython

import re

pattern = re.compile(r"^(/[^/\0]+)+/?$")
input_text = "/home/user/documents"
for m in pattern.finditer(input_text):
    print(m.group(0))

Stdlib `re` module — no third-party dependency. Works on Python 3.6+.

Go (RE2) code

goGo

package main

import (
	"fmt"
	"regexp"
)

func main() {
	re := regexp.MustCompile(`^(/[^/\0]+)+/?$`)
	input := `/home/user/documents`
	for _, match := range re.FindAllString(input, -1) {
		fmt.Println(match)
	}
}

Uses `regexp.MustCompile` (panics on bad patterns at startup) and `FindAllString` for all matches.

Pattern

regexengine-agnostic

^(/[^/\0]+)+/?$

Raw source: ^(/[^/\0]+)+/?$

How it works

`^(/[^/\0]+)+` matches one or more path segments beginning with `/`, excluding null and additional slashes within segments. `/?$` allows optional trailing slash.