Function getClassWeight

lib/reader.js:609–621

* Get a node's weight by regular expressions. * @param node the node element. * @return {Number}

(node)

 * @return {Number}
 */
function getClassWeight(node){
  var weight = 0;

  var classAndId = [node.attr('class') || '', node.attr('id') || ''].join(' ');
  if (classAndId.search(regexps.negative) >= 0) {
    weight -= 25;
  }
  if (classAndId.search(regexps.positive) >= 0) {
    weight += 25;
  }

  return weight;
}

/**
 * Get the density of links as a percentage of the content.