index.js
function(selector) {
  var commaIndex = selector.indexOf(',');
  if (commaIndex !== -1) {
    selector = selector.substring(0, commaIndex);
  }

  var  types = {
    a: 0,
    b: 0,
    c: 0
  };

  // Remove the negation psuedo-class (:not) but leave its argument because specificity is calculated on its argument
  selector = selector.replace(notRegex, ' $1 ');

  // Remove anything after a left brace in case a user has pasted in a rule, not just a selector
  selector = selector.replace(ruleRegex, ' ');

  // Add attribute selectors to parts collection (type b)
  selector = findMatch(attributeRegex, 'b', types, selector);

  // Add ID selectors to parts collection (type a)
  selector = findMatch(idRegex, 'a', types, selector);

  // Add class selectors to parts collection (type b)
  selector = findMatch(classRegex, 'b', types, selector);

  // Add pseudo-element selectors to parts collection (type c)
  selector = findMatch(pseudoElementRegex, 'c', types, selector);

  // Add pseudo-class selectors to parts collection (type b)
  selector = findMatch(pseudoClassRegex, 'b', types, selector);

  // Remove universal selector and separator characters
  selector = selector.replace(separatorRegex, ' ');

  // Remove any stray dots or hashes which aren't attached to words
  // These may be present if the user is live-editing this selector
  selector = selector.replace(straysRegex, ' ');

  // The only things left should be element selectors (type c)
  findMatch(elementRegex, 'c', types, selector);

  return (types.a * 100) + (types.b * 10) + (types.c * 1);
}
function(selector) {
  var commaIndex = selector.indexOf(',');
  if (commaIndex !== -1) {
    selector = selector.substring(0, commaIndex);
  }

  var  types = {
    a: 0,
    b: 0,
    c: 0
  };

  // Remove the negation psuedo-class (:not) but leave its argument because specificity is calculated on its argument
  selector = selector.replace(notRegex, ' $1 ');

  // Remove anything after a left brace in case a user has pasted in a rule, not just a selector
  selector = selector.replace(ruleRegex, ' ');

  // Add attribute selectors to parts collection (type b)
  selector = findMatch(attributeRegex, 'b', types, selector);

  // Add ID selectors to parts collection (type a)
  selector = findMatch(idRegex, 'a', types, selector);

  // Add class selectors to parts collection (type b)
  selector = findMatch(classRegex, 'b', types, selector);

  // Add pseudo-element selectors to parts collection (type c)
  selector = findMatch(pseudoElementRegex, 'c', types, selector);

  // Add pseudo-class selectors to parts collection (type b)
  selector = findMatch(pseudoClassRegex, 'b', types, selector);

  // Remove universal selector and separator characters
  selector = selector.replace(separatorRegex, ' ');

  // Remove any stray dots or hashes which aren't attached to words
  // These may be present if the user is live-editing this selector
  selector = selector.replace(straysRegex, ' ');

  // The only things left should be element selectors (type c)
  findMatch(elementRegex, 'c', types, selector);

  return (types.a * 100) + (types.b * 10) + (types.c * 1);
}
function ( selector ) { var commaIndex = selector . indexOf ( ',' ) ; if ( commaIndex !== - 1 ) { selector = selector . substring ( 0 , commaIndex ) ; } var types = { a : 0 , b : 0 , c : 0 } ; // Remove the negation psuedo-class (:not) but leave its argument because specificity is calculated on its argument selector = selector . replace ( notRegex , ' $1 ' ) ; // Remove anything after a left brace in case a user has pasted in a rule, not just a selector selector = selector . replace ( ruleRegex , ' ' ) ; // Add attribute selectors to parts collection (type b) selector = findMatch ( attributeRegex , 'b' , types , selector ) ; // Add ID selectors to parts collection (type a) selector = findMatch ( idRegex , 'a' , types , selector ) ; // Add class selectors to parts collection (type b) selector = findMatch ( classRegex , 'b' , types , selector ) ; // Add pseudo-element selectors to parts collection (type c) selector = findMatch ( pseudoElementRegex , 'c' , types , selector ) ; // Add pseudo-class selectors to parts collection (type b) selector = findMatch ( pseudoClassRegex , 'b' , types , selector ) ; // Remove universal selector and separator characters selector = selector . replace ( separatorRegex , ' ' ) ; // Remove any stray dots or hashes which aren't attached to words // These may be present if the user is live-editing this selector selector = selector . replace ( straysRegex , ' ' ) ; // The only things left should be element selectors (type c) findMatch ( elementRegex , 'c' , types , selector ) ; return ( types . a * 100 ) + ( types . b * 10 ) + ( types . c * 1 ) ; }
Calculate the specificity for a selector by dividing it into simple selectors and counting them
Calculate the specificity for a selector by dividing it into simple selectors and counting them