Fixing error() such that it routes through the instance of Tenso,…

… adding support for `HTML`, `YAML`, & `XML` output via new renderers (`JSON` remains of course); `HTML` is not implemented yet

Building

Gruntfile.js

@@ -27,6 +27,7 @@ module.exports = function (grunt) {
 					"src/keymaster.js",
 					"src/prepare.js",
 					"src/rate.js",
+					"src/renderers.js",
 					"src/response.js",
 					"src/zuul.js",
 					"src/outro.js"

config.json

@@ -58,6 +58,12 @@
 		"dtrace": false,
 		"stack": false
 	},
+	"renderers": [
+		"html",
+		"yaml",
+		"xml",
+		"json"
+	],
 	"security": {
 		"key": "x-csrf-token",
 		"secret": "tenso",

doc/global.html

@@ -718,7 +718,7 @@ <h5>Returns:</h5>
 
 
 <dt>
-    <h4 class="name" id="hypermedia"><span class="type-signature"></span>hypermedia<span class="signature">(server, req, rep, headers)</span><span class="type-signature"> &rarr; {Undefined}</span></h4>
+    <h4 class="name" id="hypermedia"><span class="type-signature"></span>hypermedia<span class="signature">(server, req, rep, headers)</span><span class="type-signature"> &rarr; {Object}</span></h4>
 
 
 </dt>
@@ -903,7 +903,7 @@ <h5>Returns:</h5>
 
 
 <div class="param-desc">
-    <p>undefined</p>
+    <p>HTTP response body</p>
 </div>
 
 
@@ -914,7 +914,7 @@ <h5>Returns:</h5>
 	</dt>
 	<dd>
 
-<span class="param-type">Undefined</span>
+<span class="param-type">Object</span>
 
 
 	</dd>
@@ -1826,7 +1826,7 @@ <h5>Returns:</h5>
 
 		<span class="jsdoc-message">
 		Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.2.2</a>
-		on 2015-03-26T07:17:54-04:00 using the <a
+		on 2015-03-29T12:02:13-04:00 using the <a
 			href="https://github.com/terryweiss/docstrap">DocStrap template</a>.
 		</span>
 				</footer>

doc/index.html

@@ -386,7 +386,7 @@ <h2>License</h2>
 
 		<span class="jsdoc-message">
 		Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.2.2</a>
-		on 2015-03-26T07:17:54-04:00 using the <a
+		on 2015-03-29T12:02:13-04:00 using the <a
 			href="https://github.com/terryweiss/docstrap">DocStrap template</a>.
 		</span>
 				</footer>

doc/module-tenso.html

@@ -125,7 +125,7 @@ <h2>
 	<dt class="tag-version">Version:</dt>
 	<dd class="tag-version">
 		<ul class="dummy">
-			<li>1.2.6</li>
+			<li>1.3.0</li>
 		</ul>
 	</dd>
 
@@ -242,6 +242,67 @@ <h5>Type:</h5>
 
 
 
+
+
+
+
+
+
+
+</dl>
+
+
+
+</dd>
+
+
+
+<dt class="name" id="renderers">
+    <h4><span class="type-signature">&lt;inner> </span>renderers<span class="type-signature"> :Object</span></h4>
+
+
+</dt>
+<dd>
+
+    <div class="description">
+        <p>Renderers</p>
+    </div>
+
+
+
+        <h5>Type:</h5>
+        <ul>
+            <li>
+
+<span class="param-type">Object</span>
+
+
+            </li>
+        </ul>
+
+
+
+<dl class="details">
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
 
 
 
@@ -283,7 +344,7 @@ <h5>Type:</h5>
 
 		<span class="jsdoc-message">
 		Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.2.2</a>
-		on 2015-03-26T07:17:54-04:00 using the <a
+		on 2015-03-29T12:02:13-04:00 using the <a
 			href="https://github.com/terryweiss/docstrap">DocStrap template</a>.
 		</span>
 				</footer>

doc/modules.list.html

@@ -188,7 +188,7 @@ <h2>
 
 		<span class="jsdoc-message">
 		Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.2.2</a>
-		on 2015-03-26T07:17:54-04:00 using the <a
+		on 2015-03-29T12:02:13-04:00 using the <a
 			href="https://github.com/terryweiss/docstrap">DocStrap template</a>.
 		</span>
 				</footer>

lib/tenso.es6.js

@@ -6,10 +6,10 @@
  * @license BSD-3 <https://raw.github.com/avoidwork/tenso/master/LICENSE>
  * @link http://avoidwork.github.io/tenso
  * @module tenso
- * @version 1.2.6
+ * @version 1.3.0
  */
 const CONFIG = require( __dirname + "/../config.json" );
-const VERSION = "1.2.6";
+const VERSION = "1.3.0";
 const SERVER = "tenso/" + VERSION;
 
 let keigai = require( "keigai" ),
@@ -22,6 +22,8 @@ let keigai = require( "keigai" ),
 	merge = util.merge,
 	string = util.string,
 	uuid = util.uuid,
+	xml = util.xml,
+	yaml = require( "yamljs" ),
 	turtleio = require( "turtle.io" ),
 	session = require( "express-session" ),
 	cookie = require( "cookie-parser" ),
@@ -155,6 +157,32 @@ class Tenso {
 		return this;
 	}
 
+	/**
+	 * Renders a response body, defaults to JSON
+	 *
+	 * @method render
+	 * @memberOf Tenso
+	 * @param  {Object} req     Client request
+	 * @param  {Object} arg     HTTP response body
+	 * @param  {Object} headers HTTP response headers
+	 * @return {String}         HTTP response body
+	 */
+	render ( req, arg, headers ) {
+		let accept = req.headers.accept || "application/json";
+		let format = "json";
+
+		array.iterate( this.server.config.renderers || [], function ( i ) {
+			if ( accept.indexOf( i ) > -1 ) {
+				format = i;
+				return false;
+			}
+		} );
+
+		headers["content-type"] = renderers[ format ].header;
+
+		return renderers[ format ].fn( arg );
+	}
+
 	/**
 	 * Sends a response to the Client
 	 *
@@ -187,7 +215,7 @@ class Tenso {
 				ref[ 0 ][ this.server.config.security.key ] = res.locals[ this.server.config.security.key ];
 			}
 
-			this.server.respond( req, res, hypermedia( this.server, req, response( arg, status ), ref[ 0 ] ), status, ref[ 0 ] );
+			this.server.respond( req, res, this.render( req, hypermedia( this.server, req, response( arg, status ), ref[ 0 ] ), ref[ 0 ] ), status, ref[ 0 ] );
 		}
 
 		return this;
@@ -722,7 +750,9 @@ let bootstrap = ( obj, config ) => {
 
 	// Starting API server
 	obj.server.start( config, ( req, res, status, msg ) => {
-		error( obj.server, req, res, status, msg || obj.messages[ status ] );
+		var err = msg instanceof Error ? msg : new Error( msg || obj.messages[ status ] );
+
+		error( obj, req, res, status, err, obj );
 	} );
 
 	if ( notify ) {
@@ -739,7 +769,7 @@ let bootstrap = ( obj, config ) => {
  * @return {Undefined} undefined
  */
 let error = ( server, req, res, status, err ) => {
-	server.respond( req, res, prepare( null, err, status ), status );
+	server.respond( req, res, err, status );
 };
 
 /**
@@ -784,7 +814,7 @@ let factory = ( arg ) => {
  * @param  {Object} req     Client request
  * @param  {Object} rep     Serialized representation
  * @param  {Object} headers HTTP response headers
- * @return {Undefined}      undefined
+ * @return {Object}         HTTP response body
  */
 let hypermedia = ( server, req, rep, headers ) => {
 	let seen = {},
@@ -1034,6 +1064,38 @@ let rate = ( obj, req, res, next ) => {
 	}
 };
 
+/**
+ * Renderers
+ *
+ * @type {Object}
+ */
+let renderers = {
+	html: {
+		fn: function ( arg ) {
+			return arg;
+		},
+		header: "text/html"
+	},
+	json: {
+		fn: function ( arg ) {
+			return arg;
+		},
+		header: "application/json"
+	},
+	yaml: {
+		fn: function ( arg ) {
+			return yaml.stringify( arg, 4 );
+		},
+		header: "application/yaml"
+	},
+	xml: {
+		fn: function ( arg ) {
+			return xml.encode( arg );
+		},
+		header: "application/xml"
+	}
+};
+
 /**
  * Creates a response
  *