support i18n

support i18n

src/locale/format.js

@@ -0,0 +1,47 @@
+/**
+ *  String format template
+ *  - Inspired:
+ *    https://github.com/Matt-Esch/string-template/index.js
+ */
+
+const RE_NARGS = /(%|)\{([0-9a-zA-Z_]+)\}/g;
+
+export default function(Vue) {
+    const { hasOwn } = Vue.util;
+
+    /**
+     * 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;
+}