添加List回复内容自定义

lib/list.js

@@ -1,3 +1,4 @@
+var util = require('util');
 /*!
  * 缓存列表
  */
@@ -22,21 +23,30 @@ List.prototype.get = function (key) {
  * 静态方法，根据items生成List对象，并放置到缓存中
  * @param {String} name 列表名字
  * @param {Array} items 元素列表
+ * @param {String} head 回复开头
+ * @param {String} delimiter 回复分隔符
+ * @param {String} foot 回复底部
  */
-List.add = function (name, items) {
+List.add = function(name, items, head, delimiter, foot) {
   var description = [];
   var list = new List();
   list.name = name;
-  items.forEach(function (item) {
+  items.forEach(function(item) {
     var text = item[0];
     // 抽取出key，并关联上对应的handle
-    var replaced = text.replace(/\{(.*)\}/, function (match, key) {
+    var replaced = text.replace(/\{(.*)\}/, function(match, key) {
       list.map[key] = item[1];
       return key;
     });
     description.push(replaced);
   });
-  list.description = description.join('\n'),
+
+  if (delimiter) {
+    var lists = description.join('\n' + (delimiter || '') + '\n');
+    list.description = util.format('%s\n%s\n%s', head || '', lists, (foot || ''));
+  } else {
+    list.description = description.join('\n');
+  }
   listCache[name] = list;
 };
 

test/list.test.js

@@ -1,3 +1,4 @@
+
 var should = require('should');
 var List = require('../').List;
 
@@ -44,4 +45,22 @@ describe('list.js', function () {
     list.get('b').should.be.equal(common[2][1]);
     list.get('c').should.be.equal(common[3][1]);
   });
+
+  it('should ok with body, foot, delimiter', function() {
+    var common = [
+      ['选择{a}查看啥', function () {}],
+      ['选择{b}查看啥', function () {}],
+      ['选择{c}查看啥', function () {}]
+    ];
+    var head = '我是头';
+    var delimiter = '-------';
+    var foot = '我是小尾巴';
+
+    List.add('common', common, head, delimiter, '我是小尾巴');
+    var list = List.get('common');
+    list.description.should.be.equal(head + '\n选择a查看啥\n' + delimiter + '\n选择b查看啥\n' + delimiter + '\n选择c查看啥\n' + foot);
+    list.get('a').should.be.equal(common[0][1]);
+    list.get('b').should.be.equal(common[1][1]);
+    list.get('c').should.be.equal(common[2][1]);
+  });
 });