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src/locale/format.js 1.15 KB
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d33b5143   梁灏   support i18n 
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  /**
   *  String format template
   *  - Inspired:
   *    https://github.com/Matt-Esch/string-template/index.js
   */
  
  const RE_NARGS = /(%|)\{([0-9a-zA-Z_]+)\}/g;
6d89ed96   梁灏   #713 
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  export default function() {
07daf1b6   梁灏   update i18n format 
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      // const { hasOwn } = Vue.util;
      function hasOwn (obj, key) {
          return Object.prototype.hasOwnProperty.call(obj, key);
      }
d33b5143   梁灏   support i18n 
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      /**
       * 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 = hasOwn(args, i) ? args[i] : null;
                  if (result === null || result === undefined) {
                      return '';
                  }
  
                  return result;
              }
          });
      }
  
      return template;
  }