korah.commonjs.js

function normalise(nodes) {
  return nodes.reduce(function(rv, e) {
    return rv.concat(Array.isArray(e)
      ? normalise(e)
      : e.nodeType
        ? [e]
        : [document.createTextNode(e)]);
  }, []);
}

function createNode(tag, attrs, children) {
  var node = document.createElement(tag);
  normalise(children).forEach(node.appendChild.bind(node));
  for (var i in attrs)
    node.setAttribute(i, attrs[i]);
  return node;
}

var type = {}.toString;

var kr = function (tag, attrs, children) {

  if (attrs && type.call(attrs) !== '[object Object]') {
    children = attrs;
    attrs = {};
  }

  return createNode(tag, attrs, children
    ? Array.isArray(children)
      ? children
      : [children]
    : []);

}

kr.addTag = function(tag) {
  kr[tag] = function(attrs, children) {
    return kr(tag, attrs, children);
  };
};

// set up default elements
[
  'h1', 'h2', 'h3', 'h4',
  'div', 'span', 'p', 'style', 'article', 'aside',
  'figure', 'figcaption',
  'a', 'ul', 'ol', 'li',
  'table', 'tr', 'th', 'td',
  'b', 'i', 'u',
  'hr', 'br', 'sub', 'sup',
  'input', 'button',
].forEach(kr.addTag);

module.exports = kr