// JavaScript Document

/* parseUri JS v0.1, by Steven Levithan (http://badassery.blogspot.com)
Splits any well-formed URI into the following parts (all are optional):
----------------------
• source (since the exec() method returns backreference 0 [i.e., the entire match] as key 0, we might as well use it)
• protocol (scheme)
• authority (includes both the domain and port)
    • domain (part of the authority; can be an IP address)
    • port (part of the authority)
• path (includes both the directory path and filename)
    • directoryPath (part of the path; supports directories with periods, and without a trailing backslash)
    • fileName (part of the path)
• query (does not include the leading question mark)
• anchor (fragment)
*/
function parse_uri(sourceUri){
    var uriPartNames = ["source","protocol","authority","domain","port","path","directoryPath","fileName","query","anchor"];
    var uriParts = new RegExp("^(?:([^:/?#.]+):)?(?://)?(([^:/?#]*)(?::(\\d*))?)?((/(?:[^?#](?![^?#/]*\\.[^?#/.]+(?:[\\?#]|$)))*/?)?([^?#/]*))?(?:\\?([^#]*))?(?:#(.*))?").exec(sourceUri);
    var uri = {};
    
    for(var i = 0; i < 10; i++){
        uri[uriPartNames[i]] = (uriParts[i] ? uriParts[i] : "");
    }
    
    // Always end directoryPath with a trailing backslash if a path was present in the source URI
    // Note that a trailing backslash is NOT automatically inserted within or appended to the "path" key
    if(uri.directoryPath.length > 0){
        uri.directoryPath = uri.directoryPath.replace(/\/?$/, "/");
    }
    
    return uri;
}