Using Regex to extract word

Question

I have a pattern as follows:

document_data/Filename.xyz

I'm trying to write a regular expression that will only return "Filename". I have one that gives me just "xyz" and it works, and I have one that gives me "Filename.xyz" but I"m having trouble chopping off the xyz to just get Filename.

[^/]+$ gives me "Filename.xyz" \\[^.]+$ gives me xyz

I'm not a regex person so any help would be great! Thanks!

Answer 1

try to use a lookahead (?=...) :

/[^\/.]+(?=\.[^.]+$)/

A lookahead performs only a check and means followed by but match nothing.

Answer 2

将两者结合起来，并将第一部分包装在一个捕获组中：

"document_data/Filename.xyz".match(/([^/]+)\.[^.]+$/)[1]

Answer 3

I hope its could help (cf: http://planetozh.com/blog/2008/04/javascript-basename-and-dirname/ )

    function basename(path) {
        return path.replace(/\\/g,'/').replace( /.*\//, '' ).replace( /\..*/, '' );
    }