Function computeRelativeUrlTo

data/codebrowser.js:279–299

(source, dest)

    }

    function computeRelativeUrlTo(source, dest) {
        var src_splitted = source.split("/");
        if (src_splitted.length > 0 && src_splitted[src_splitted.length-1] == "")
            src_splitted.pop();
        var dst_splitted = dest.split("/");
        var maxMatch = Math.min(src_splitted.length, dst_splitted.length);
        var pre = 0;
        while (++pre < maxMatch) {
            if (src_splitted[pre] != dst_splitted[pre])
                break;
        }
        // make sure the host is the same (http://xxx/ is 3 parts)
        if (pre < 3)
            return dest;

        var stack = [];
        for (i = 0; i < src_splitted.length - pre; ++i) {
            stack.push("..");
        }
        return stack.concat(dst_splitted.slice(pre)).join('/');
    }
    /*// Test
    function test_cmp(a, b) { if (a!=b) { console.log("ASSERT", a, b); alert("FAIL! \n" + a + " != " + b); } }
    test_cmp(computeRelativeUrlTo("", ""), "");