First Commit

node_modules/express-ejs-layouts/lib/express-layouts.js

@@ -0,0 +1,117 @@
+/*jslint sloppy:true indent:2 plusplus:true regexp:true*/
+
+var contentPattern = '&&<>&&';
+
+function contentFor(contentName) {
+  return contentPattern + contentName + contentPattern;
+}
+
+function parseContents(locals) {
+  var name, i = 1, str = locals.body,
+    regex = new RegExp('\n?' + contentPattern + '.+?' + contentPattern + '\n?', 'g'),
+    split = str.split(regex),
+    matches = str.match(regex);
+
+  locals.body = split[0];
+
+  if (matches !== null) {
+    matches.forEach(function (match) {
+      name = match.split(contentPattern)[1];
+      locals[name] = split[i];
+      i++;
+    });
+  }
+}
+
+function parseScripts(locals) {
+  var str = locals.body, regex = /\<script[\s\S]*?\>[\s\S]*?\<\/script\>/g;
+
+  if (regex.test(str)) {
+    locals.body = str.replace(regex, '');
+    locals.script = str.match(regex).join('\n');
+  }
+}
+
+function parseStyles(locals) {
+  var str = locals.body, regex = /(?:\<style[\s\S]*?\>[\s\S]*?\<\/style\>)|(?:\<link[\s\S]*?\>(?:\<\/link\>)?)/g;
+
+  if (regex.test(str)) {
+    locals.body = str.replace(regex, '');
+    locals.style = str.match(regex).join('\n');
+  }
+}
+
+function parseMetas(locals) {
+  var str = locals.body, regex = /\<meta[\s\S]*?\>/g;
+
+  if (regex.test(str)) {
+    locals.body = str.replace(regex, '');
+    locals.meta = str.match(regex).join('\n');
+  }
+}
+
+module.exports = function (req, res, next) {
+  if(!res.__render) res.__render = res.render;
+
+  res.render = function (view, options, fn) {
+    var layout, self = this, app = req.app,
+      defaultLayout = app.get('layout');
+
+    options = options || {};
+    if (typeof options === 'function') {
+      fn = options;
+      options = {};
+    }
+
+    if (options.layout === false || ((options.layout || defaultLayout) === false)) {
+      res.__render.call(res, view, options, fn);
+      return;
+    }
+
+    layout = options.layout || res.locals.layout || defaultLayout;
+    if (layout === true || layout === undefined) {
+      layout = 'layout';
+    }
+
+    options.contentFor = contentFor;
+    res.__render.call(res, view, options, function (err, str) {
+      var l, locals;
+
+      if (err) { return fn ? fn(err) : next(err); }
+
+      locals = {
+        body: str,
+        defineContent: function(contentName) { return locals[contentName] || ''; }
+      };
+      for (l in options) {
+        if (options.hasOwnProperty(l) && l !== 'layout' && l !== 'contentFor') {
+          locals[l] = options[l];
+        }
+      }
+
+      if (typeof locals.body !== 'string') {
+        res.__render.call(self, view, locals, fn);
+        return;
+      }
+
+      if (options.extractScripts === true || (options.extractScripts === undefined && app.get('layout extractScripts') === true)) {
+        locals.script = '';
+        parseScripts(locals);
+      }
+
+      if (options.extractStyles === true || (options.extractStyles === undefined && app.get('layout extractStyles') === true)) {
+        locals.style = '';
+        parseStyles(locals);
+      }
+
+      if (options.extractMetas === true || (options.extractMetas === undefined && app.get('layout extractMetas') === true)) {
+        locals.meta = '';
+        parseMetas(locals);
+      }
+
+      parseContents(locals);
+      res.__render.call(self, layout, locals, fn);
+    });
+  };
+  next();
+};