var app = angular.module('demo', ['ngMaterial']);

app.run([
	'$rootScope',
  function ($rootScope) {
    var tokens = _([].slice.apply(document.querySelectorAll('p')))
    	.map((p) => p.textContent.split(' '))     // Split on words.
      .flatten()                                // Flatten.
      .map((token) => token.replace(/\W/g, '')) // Remove punctuation.
    	.filter((token) => token.match(/\w/))     // Remove empty tokens.
      .map(_.upperFirst)                        // Consistent case.
      .uniq()                                   // Remove duplicates.
      .value();

    $rootScope.search = (query) => tokens.filter(
    	(t) => query ? t.match(new RegExp(query, 'i')) : true);
  }
]);