an event binder

control.js

function control (node) {
  var hookMatch = /^-js-[a-zA-Z-\_]+|\s-js-[a-zA-Z-\_]+/g;
  function jsCase(string) {
    return string.match(/[a-zA-Z0-9_]+/g).map(function (a, i) {
      if (i === 0) {
        return a.toLowerCase();
      }
      return a[0].toUpperCase() + a.substr(1, a.length).toLowerCase();
    }).join('');
  }
  function trimBinder(name) {
    return jsCase(name.trim().replace(/-js-/, ''));
  }
  function list(filter) {
    var nodeList = [].slice.call(node.querySelectorAll('[class*="-js-"]'));
    nodeList = nodeList.filter(function (node) {
      return /(\s-js-[a-z])|^-js-[a-z]/.test(node.className);
    }).map(function (node) {
      return {
        node   : node,
        binder : node.className.match(hookMatch).map(trimBinder)
      }
    });
    if (typeof filter === 'string') {
      nodeList = nodeList.filter(function (nodeListItem) {
        return nodeListItem.binder.indexOf(filter) !== -1;
      });
    }
    return nodeList;
  }
  function keys(object) {
    var keysList = [];
    for (var k in object) {
      keysList.push(k);
    }
    return keysList;
  }
  function assign(a, b) {
    for (var k in b) {
      a[k] = b[k];
    }
    return a;
  }
  function setBind(node, eventName, binderFunction) {
    if (/Key$/.test(eventName)) {
      node.addEventListener('keyup', function (e) {
        var keypress = eventName.match(/^(esc|enter)/)[1];
        var which = {
          enter : 13,
          esc   : 27
        };
        if (e.which === which[keypress]) {
          binderFunction(assign({
            trigger : node
          }, e));
        }
      }, false);
    } else {
      node.addEventListener(eventName, function (e) {
        binderFunction(assign({
          trigger : node
        }, e));
      }, false);
    }
  }
  function bind(settings) {
    list().forEach(function (bindInfo) {
      bindInfo.binder.forEach(function (binderName) {
        keys(settings[binderName]).forEach(function (eventName) {
          setBind(bindInfo.node, eventName, settings[binderName][eventName]);
        });
      });
    });
  }
  return {
    bind : bind,
    list : list,
  }
}