Provide more customizable formatter and writers

[just-boris]

Syphon provides an ability to create custom input readers and writers for different data types. But type is always detected as tag name or type attribute. But sometimes I have to deal with custom data stored in the simple <input type="text">, but I still need to apply custom reader and writer for that fields.

Is there a way how to apply input readers and writers in the more customizable way? For example, add extra data-format attribute with additional information about field format.

[just-boris]

Now I found a workaround with overriding default input reader and writer to add them more custom logic:

Backbone.Syphon.InputReaders.registerDefault(function($el) {
    var format = $el.data('format');
    var value = $el.val();
    if(format) {
        //custom format logic
    }
    return value;
});

Backbone.Syphon.InputWriters.registerDefault(function($el, value) {
     var format = $el.data('format');
     if(format) {
        //custom format logic
     }
     $el.val(value);
});

You can see full example here:
https://jsfiddle.net/just_boris/uw8hc7fb/