1.0.0

src/lay/modules/laytpl.js

@@ -0,0 +1,111 @@
+/**
+ 
+ @Name : layui.laytpl 模板引擎
+ @Author：贤心
+ @License：LGPL
+ 
+ */
+
+layui.define(function(exports){
+
+  "use strict";
+
+  var config = {
+    open: '{{',
+    close: '}}'
+  };
+
+  var tool = {
+    exp: function(str){
+      return new RegExp(str, 'g');
+    },
+    //匹配满足规则内容
+    query: function(type, _, __){
+      var types = [
+        '#([\\s\\S])+?',   //js语句
+        '([^{#}])*?' //普通字段
+      ][type || 0];
+      return exp((_||'') + config.open + types + config.close + (__||''));
+    },   
+    escape: function(html){
+      return String(html||'').replace(/&(?!#?[a-zA-Z0-9]+;)/g, '&')
+      .replace(/</g, '&lt;').replace(/>/g, '&gt;').replace(/'/g, '&#39;').replace(/"/g, '&quot;');
+    },
+    error: function(e, tplog){
+      var error = 'Laytpl Error：';
+      typeof console === 'object' && console.error(error + e + '\n'+ (tplog || ''));
+      return error + e;
+    }
+  };
+
+  var exp = tool.exp, Tpl = function(tpl){
+    this.tpl = tpl;
+  };
+
+  Tpl.pt = Tpl.prototype;
+
+  window.errors = 0;
+
+  //编译模版
+  Tpl.pt.parse = function(tpl, data){
+    var that = this, tplog = tpl;
+    var jss = exp('^'+config.open+'#', ''), jsse = exp(config.close+'$', '');
+    
+    tpl = tpl.replace(/\s+|\r|\t|\n/g, ' ').replace(exp(config.open+'#'), config.open+'# ')
+    
+    .replace(exp(config.close+'}'), '} '+config.close).replace(/\\/g, '\\\\')
+    
+    .replace(/(?="|')/g, '\\').replace(tool.query(), function(str){
+      str = str.replace(jss, '').replace(jsse, '');
+      return '";' + str.replace(/\\/g, '') + ';view+="';
+    })
+    
+    .replace(tool.query(1), function(str){
+      var start = '"+(';
+      if(str.replace(/\s/g, '') === config.open+config.close){
+        return '';
+      }
+      str = str.replace(exp(config.open+'|'+config.close), '');
+      if(/^=/.test(str)){
+        str = str.replace(/^=/, '');
+        start = '"+_escape_(';
+      }
+      return start + str.replace(/\\/g, '') + ')+"';
+    });
+    
+    tpl = '"use strict";var view = "' + tpl + '";return view;';
+
+    try{
+      that.cache = tpl = new Function('d, _escape_', tpl);
+      return tpl(data, tool.escape);
+    } catch(e){
+      delete that.cache;
+      return tool.error(e, tplog);
+    }
+  };
+
+  Tpl.pt.render = function(data, callback){
+    var that = this, tpl;
+    if(!data) return tool.error('no data');
+    tpl = that.cache ? that.cache(data, tool.escape) : that.parse(that.tpl, data);
+    if(!callback) return tpl;
+    callback(tpl);
+  };
+
+  var laytpl = function(tpl){
+    if(typeof tpl !== 'string') return tool.error('Template not found');
+    return new Tpl(tpl);
+  };
+
+  laytpl.config = function(options){
+    options = options || {};
+    for(var i in options){
+      config[i] = options[i];
+    }
+  };
+
+  laytpl.v = '1.2.0';
+  
+  exports('laytpl', laytpl);
+
+});