function doWork()

in styleguide/kss-template/kss-assets/prettify.js [1372:1435]
47 lines of code
22 McCabe index (conditional complexity)

    function doWork() {
      var endTime = (window['PR_SHOULD_USE_CONTINUATION'] ?
                     clock['now']() + 250 /* ms */ :
                     Infinity);
      for (; k < elements.length && clock['now']() < endTime; k++) {
        var cs = elements[k];
        var className = cs.className;
        if (className.indexOf('prettyprint') >= 0) {
          // If the classes includes a language extensions, use it.
          // Language extensions can be specified like
          //     <pre class="prettyprint lang-cpp">
          // the language extension "cpp" is used to find a language handler as
          // passed to PR.registerLangHandler.
          // HTML5 recommends that a language be specified using "language-"
          // as the prefix instead.  Google Code Prettify supports both.
          // http://dev.w3.org/html5/spec-author-view/the-code-element.html
          var langExtension = className.match(langExtensionRe);
          // Support <pre class="prettyprint"><code class="language-c">
          var wrapper;
          if (!langExtension && (wrapper = childContentWrapper(cs))
              && "CODE" === wrapper.tagName) {
            langExtension = wrapper.className.match(langExtensionRe);
          }

          if (langExtension) {
            langExtension = langExtension[1];
          }

          // make sure this is not nested in an already prettified element
          var nested = false;
          for (var p = cs.parentNode; p; p = p.parentNode) {
            if ((p.tagName === 'pre' || p.tagName === 'code' ||
                 p.tagName === 'xmp') &&
                p.className && p.className.indexOf('prettyprint') >= 0) {
              nested = true;
              break;
            }
          }
          if (!nested) {
            // Look for a class like linenums or linenums:<n> where <n> is the
            // 1-indexed number of the first line.
            var lineNums = cs.className.match(/\blinenums\b(?::(\d+))?/);
            lineNums = lineNums
                  ? lineNums[1] && lineNums[1].length ? +lineNums[1] : true
                  : false;
            if (lineNums) { numberLines(cs, lineNums); }

            // do the pretty printing
            prettyPrintingJob = {
              langExtension: langExtension,
              sourceNode: cs,
              numberLines: lineNums
            };
            applyDecorator(prettyPrintingJob);
          }
        }
      }
      if (k < elements.length) {
        // finish up in a continuation
        setTimeout(doWork, 250);
      } else if (opt_whenDone) {
        opt_whenDone();
      }
    }