Function classTest

src/codemirror.js:8465–8465

(cls)

  };

  function classTest(cls) { return new RegExp("(^|\\s)" + cls + "(?:$|\\s)\\s*"); }
  var rmClass = CodeMirror.rmClass = function(node, cls) {
    var current = node.className;
    var match = classTest(cls).exec(current);