Question

117

Match filename and file extension from single Regex

rated 0 times [ 122] [ 5] / answers: 1 / hits: 74357 / 13 Years ago, wed, january 25, 2012, 12:00:00

I'm sure this must be easy enough, but I'm struggling...

var regexFileName = /[^\]*$/; // match filename

var regexFileExtension = /(w+)$/; // match file extension



function displayUpload() {

    var path = $el.val(); //This is a file input

    var filename = path.match(regexFileName); // returns  file name

    var extension = filename[0].match(regexFileExtension); // returns extension



    console.log(The filename is  + filename[0]);

    console.log(The extension is  + extension[0]);

}

The function above works fine, but I'm sure it must be possible to achieve with a single regex, by referencing different parts of the array returned with the .match() method. I've tried combining these regex but without success.

Also, I'm not using a string to test it on in the example, as console.log() escapes the backslashes in a filepath and it was starting to confuse me :)

Answers

Only authorized users can answer the question. Please sign in first, or register a free account.

diane

Add To Favorites

Follow

Total Points: 264

Total Questions: 104

Total Answers: 95

Location: Liechtenstein

Member since Wed, Dec 8, 2021

3 Years ago

answered 13 Years ago payton · Accepted Answer

Assuming that all files do have an extension, you could use

var regexAll = /[^\]*.(w+)$/;

Then you can do

var total = path.match(regexAll);

var filename = total[0];

var extension = total[1];