Function styleToClass

static/js/codemirror/codemirror.js:3938–3942

(style)

  var styleToClassCache = {};
  function styleToClass(style) {
    if (!style) return null;
    return styleToClassCache[style] ||
      (styleToClassCache[style] = "cm-" + style.replace(/ +/g, " cm-"));
  }

  function lineContent(cm, realLine, measure) {
    var merged, line = realLine, lineBefore, sawBefore, simple = true;