Implement wildcard attribute bindings so that it's possible to bind to any arbitrary attribute.

@@ -24,7 +24,7 @@ No contrived example here yet, but the `rivets` module is simple. It exposes a s
 - **data-unchecked**: two-way inverse binding that sets the node's checked state.
 - **data-selected**: two-way binding that sets the node's selected state.
 - **data-unselected**: two-way inverse binding that sets the node's checked state.
-- **data-[attribute]**: one-way binding that sets the node's attribute value (currently only for a few select attributes).
+- **data-[attribute]**: one-way binding that sets the node's attribute value.
 
 ## Adapters
 

@@ -3,11 +3,13 @@
   var __indexOf = [].indexOf || function(item) { for (var i = 0, l = this.length; i < l; i++) { if (i in this && this[i] === item) return i; } return -1; };
 
   window.rivets = (function() {
-    var attr, bidirectionalBindings, bindableAttributes, bindings, getInputValue, registerBinding, setAttribute, _fn, _i, _len;
+    var attributeBinding, bidirectionalBindings, bindings, getInputValue, registerBinding, setAttribute;
     registerBinding = function(el, adapter, type, context, keypath) {
-      bindings[type](el, adapter.read(context, keypath));
+      var bind;
+      bind = bindings[type] || attributeBinding(type);
+      bind(el, adapter.read(context, keypath));
       adapter.subscribe(context, keypath, function(value) {
-        return bindings[type](el, value);
+        return bind(el, value);
       });
       if (__indexOf.call(bidirectionalBindings, type) >= 0) {
         return $(el).bind('change', function() {
@@ -76,42 +78,35 @@
         return $(el).val(value);
       }
     };
-    bidirectionalBindings = ['value', 'checked', 'unchecked', 'selected', 'unselected'];
-    bindableAttributes = ['id', 'class', 'name', 'src', 'href', 'alt', 'title', 'placeholder'];
-    _fn = function(attr) {
-      return bindings[attr] = function(el, value) {
+    attributeBinding = function(attr) {
+      return function(el, value) {
         return setAttribute(el, attr, value);
       };
     };
-    for (_i = 0, _len = bindableAttributes.length; _i < _len; _i++) {
-      attr = bindableAttributes[_i];
-      _fn(attr);
-    }
+    bidirectionalBindings = ['value', 'checked', 'unchecked', 'selected', 'unselected'];
     return {
       bind: function(el, adapter, contexts) {
         if (contexts == null) {
           contexts = {};
         }
         return $(el).add($('*', el)).each(function() {
-          var nodeMap, target, _j, _ref, _results;
+          var nodeMap, target, _i, _ref, _results;
           target = this;
           nodeMap = target.attributes;
           if (nodeMap.length > 0) {
             return (function() {
               _results = [];
-              for (var _j = 0, _ref = nodeMap.length - 1; 0 <= _ref ? _j <= _ref : _j >= _ref; 0 <= _ref ? _j++ : _j--){ _results.push(_j); }
+              for (var _i = 0, _ref = nodeMap.length - 1; 0 <= _ref ? _i <= _ref : _i >= _ref; 0 <= _ref ? _i++ : _i--){ _results.push(_i); }
               return _results;
             }).apply(this).forEach(function(n) {
               var context, keypath, node, path, type;
               node = nodeMap[n];
               if (/^data-/.test(node.name)) {
                 type = node.name.replace('data-', '');
-                if (type in bindings) {
-                  path = node.value.split('.');
-                  context = path.shift();
-                  keypath = path.join('.');
-                  return registerBinding($(target), adapter, type, contexts[context], keypath);
-                }
+                path = node.value.split('.');
+                context = path.shift();
+                keypath = path.join('.');
+                return registerBinding($(target), adapter, type, contexts[context], keypath);
               }
             });
           }

@@ -5,14 +5,15 @@
 
 window.rivets = do ->
   registerBinding = (el, adapter, type, context, keypath) ->
-    bindings[type] el, adapter.read(context, keypath)
+    bind = bindings[type] || attributeBinding type
+    bind el, adapter.read context, keypath
 
     adapter.subscribe context, keypath, (value) ->
-      bindings[type] el, value
+      bind el, value
 
     if type in bidirectionalBindings
       $(el).bind 'change', ->
-        adapter.publish context, keypath, getInputValue(this)
+        adapter.publish context, keypath, getInputValue this
 
   setAttribute = (el, attr, value, mirrored=false) ->
     if value
@@ -47,13 +48,11 @@ window.rivets = do ->
     value: (el, value) ->
       $(el).val value
 
-  bidirectionalBindings = ['value', 'checked', 'unchecked', 'selected', 'unselected']
-  bindableAttributes = ['id', 'class', 'name', 'src', 'href', 'alt', 'title', 'placeholder']
+  attributeBinding = (attr) ->
+    (el, value) ->
+      setAttribute el, attr, value
 
-  for attr in bindableAttributes
-    do (attr) ->
-      bindings[attr] = (el, value) ->
-        setAttribute el, attr, value
+  bidirectionalBindings = ['value', 'checked', 'unchecked', 'selected', 'unselected']
 
   bind: (el, adapter, contexts={}) ->
     $(el).add($('*', el)).each ->
@@ -66,9 +65,7 @@ window.rivets = do ->
 
           if /^data-/.test node.name
             type = node.name.replace 'data-', ''
-
-            if type of bindings
-              path = node.value.split '.'
-              context = path.shift()
-              keypath = path.join '.'
-              registerBinding $(target), adapter, type, contexts[context], keypath
+            path = node.value.split '.'
+            context = path.shift()
+            keypath = path.join '.'
+            registerBinding $(target), adapter, type, contexts[context], keypath