Translate a list of slash-paths to a Tree in JavaScript

tree-parser.js

var input = [
    { "name": "File 1", "path": "Home/Folder A/Folder A-B" }, 
    { "name": "File 2", "path": "Home/Folder C/Folder C-A/File 4.hist" }, 
    { "name": "File 3", "path": "Home/Folder A/Folder A-B" }, 
    { "name": "File 4", "path": "Home/Folder C/Folder C-A" }, 
    { "name": "File 5", "path": "Home/Folder B" }, 
    { "name": "File 6", "path": "Home/Folder C/Folder C-A/File 4.hist" }, 
    { "name": "File 7", "path": "Home/Folder B/Folder B-B" }, 
    { "name": "File 8", "path": "Home/Folder C/Folder C-A/File 4.hist" }, 
    { "name": "File 9", "path": "Home/Folder B" }, 
    { "name": "File 10", "path": "Home/Folder C/Folder C-B" }, 
    { "name": "File 11", "path": "Home/Folder A" }, 
    { "name": "File 12", "path": "Home" }
];


function translatePath(input, pathAttrName) {
    var o = [];

    for (var i = 0; i < input.length; i++) {
        var chain = input[i][pathAttrName].split("/");
        var cn = o;
        for (var j = 0; j < chain.length; j++) {
            var wn = chain[j];
            var ln = cn;
            for (var k = 0; k < cn.length; k++) {
                if (cn[k].name == wn) {
                    cn = cn[k].children;
                    break;
                }
            }

            if (ln == cn) {
                var nn = cn[k] = { name: wn, children: []};
                cn = nn.children;
            }
        }

        cn.push(input[i]);
    }

    return o;
}

print(JSON.stringify(translatePath(input, "path"), null, 3));