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