docs: function(varsData) {
      if (isJSON(varsData)) {
        // JSON variables
        varsData = JSON.parse(varsData);
  
        for (var key in varsData) {
          if (varsData.hasOwnProperty(key)) {
            this.vars[normalizeVarName(key)] = varsData[key];
          }
        }
      }
      else {
        // Sass variables
        var pattern = /\$([^\s:]+)\s*:\s*([^!;]+)/g;
        var match = pattern.exec(varsData);
  
        while (match) {
          this.vars[ match[1] ] = match[2].trim();
          match = pattern.exec(varsData);
        }
      }
    }