text: const RE_NARGS = /(%|)\{([0-9a-zA-Z_]+)\}/g
  /**
   *  String format template
   *   https://github.com/Matt-Esch/string-template/index.js
   */
  export default function (Vue) {
    /**
     * template
     *
     * @param {String} string
     * @param {Array} ...args
     * @return {String}
     */
  
    function template (string, ...args) {
      if (args.length === 1 && typeof args[0] === 'object') {
        args = args[0]
      }
  
      if (!args || !args.hasOwnProperty) {
        args = {}
      }
  
      return string.replace(RE_NARGS, (match, prefix, i, index) => {
        let result
  
        if (string[index - 1] === '{' &&
          string[index + match.length] === '}') {
          return i
        } else {
          result = Object.hasOwnProperty.call(args, i) ? args[i] : null
          if (result === null || result === undefined) {
            return ''
          }
  
          return result
        }
      })
    }
  
    return template
  }
  