HTML5 input list features

I recently stumbled upon the HTML 5 <input list='myDataListName /> which can be used with a <datalist /> to perform "out of the box" auto-complete functionality, with no javascript required. Pretty cool!

Are there any other advanced configuration options within HTML5 for this new <input list="x"> type that are supported?

I know all of these options are possible using JavaScript even before this new HTML5 feature, but the new feature seems a little lacking without some of these options.

For example:

• Sub string auto-complete. (type "Lastname" and find "Firstname Lastname" item)


• Start matching only after first x characters are typed


• Require selection of an item from the datalist


• Tab to select first item


• Server side callbacks the retrieve sub-set results for large lists

Example of HTML5 input list:

<input list="browsers" name="browser">
  <datalist id="browsers">
    <option value="Internet Explorer">
    <option value="Firefox">
    <option value="Chrome">
    <option value="Opera">
    <option value="Safari">
  </datalist>