made the autoescape tag argument optional (defaults to 'html')

CHANGELOG

@@ -1,6 +1,6 @@
 * 1.8.0 (2012-XX-XX)
 
- * simplified usage of the autoescape tag; the only argument is now the escaping strategy or false (with a BC layer)
+ * simplified usage of the autoescape tag; the only (optional) argument is now the escaping strategy or false (with a BC layer)
  * added a way to dynamically change the auto-escaping strategy according to the template "filename"
  * changed the autoescape option to also accept a supported escaping strategy (for BC, true is equivalent to html)
  * added an embed tag

doc/api.rst

@@ -327,11 +327,13 @@ the ``raw`` filter:
 
     {{ article.to_html|raw }}
 
-You can also change the escaping mode locally by using the ``autoescape`` tag:
+You can also change the escaping mode locally by using the ``autoescape`` tag
+(see the :doc:`autoescape<../tags/autoescape>` doc for the syntax used before
+Twig 1.8):
 
 .. code-block:: jinja
 
-    {% autoescape true %}
+    {% autoescape 'html' %}
       {{ var }}
       {{ var|raw }}      {# var won't be escaped #}
       {{ var|escape }}   {# var won't be double-escaped #}

doc/tags/autoescape.rst

@@ -6,26 +6,46 @@ template to be escaped or not by using the ``autoescape`` tag:
 
 .. code-block:: jinja
 
-    {% autoescape true %} {# as of Twig 1.8, this is equivalent to {% autoescape 'html' %} #}
+    {# The following syntax works as of Twig 1.8 -- see the note below for previous versions #}
+
+    {% autoescape %}
         Everything will be automatically escaped in this block
         using the HTML strategy
     {% endautoescape %}
 
+    {% autoescape 'html' %}
+        Everything will be automatically escaped in this block
+        using the HTML strategy
+    {% endautoescape %}
+
+    {% autoescape 'js' %}
+        Everything will be automatically escaped in this block
+        using the js escaping strategy
+    {% endautoescape %}
+
     {% autoescape false %}
         Everything will be outputted as is in this block
     {% endautoescape %}
 
-    {# deprecated as of Twig 1.8 #}
-    {% autoescape true js %}
-        Everything will be automatically escaped in this block
-        using the js escaping strategy
-    {% endautoescape %}
+.. note::
 
-    {# as of Twig 1.8 #}
-    {% autoescape 'js' %}
-        Everything will be automatically escaped in this block
-        using the js escaping strategy
-    {% endautoescape %}
+    Before Twig 1.8, the syntax was different:
+
+    .. code-block:: jinja
+
+        {% autoescape true %}
+            Everything will be automatically escaped in this block
+            using the HTML strategy
+        {% endautoescape %}
+
+        {% autoescape false %}
+            Everything will be outputted as is in this block
+        {% endautoescape %}
+
+        {% autoescape true js %}
+            Everything will be automatically escaped in this block
+            using the js escaping strategy
+        {% endautoescape %}
 
 When automatic escaping is enabled everything is escaped by default except for
 values explicitly marked as safe. Those can be marked in the template by using
@@ -33,7 +53,7 @@ the :doc:`raw<../filters/raw>` filter:
 
 .. code-block:: jinja
 
-    {% autoescape true %}
+    {% autoescape %}
         {{ safe_value|raw }}
     {% endautoescape %}
 

lib/Twig/TokenParser/AutoEscape.php

@@ -39,24 +39,29 @@ class Twig_TokenParser_AutoEscape extends Twig_TokenParser
     public function parse(Twig_Token $token)
     {
         $lineno = $token->getLine();
-        $expr = $this->parser->getExpressionParser()->parseExpression();
-        if (!$expr instanceof Twig_Node_Expression_Constant) {
-            throw new Twig_Error_Syntax('An escaping strategy must be a string or a Boolean.', $lineno);
-        }
-        $value = $expr->getAttribute('value');
 
-        $compat = true === $value || false === $value;
-
-        if (true === $value) {
+        if ($this->parser->getStream()->test(Twig_Token::BLOCK_END_TYPE)) {
             $value = 'html';
-        }
+        } else {
+            $expr = $this->parser->getExpressionParser()->parseExpression();
+            if (!$expr instanceof Twig_Node_Expression_Constant) {
+                throw new Twig_Error_Syntax('An escaping strategy must be a string or a Boolean.', $lineno);
+            }
+            $value = $expr->getAttribute('value');
 
-        if ($compat && $this->parser->getStream()->test(Twig_Token::NAME_TYPE)) {
-            if (false === $value) {
-                throw new Twig_Error_Syntax('Unexpected escaping strategy as you set autoescaping to false.', $lineno);
+            $compat = true === $value || false === $value;
+
+            if (true === $value) {
+                $value = 'html';
             }
 
-            $value = $this->parser->getStream()->next()->getValue();
+            if ($compat && $this->parser->getStream()->test(Twig_Token::NAME_TYPE)) {
+                if (false === $value) {
+                    throw new Twig_Error_Syntax('Unexpected escaping strategy as you set autoescaping to false.', $lineno);
+                }
+
+                $value = $this->parser->getStream()->next()->getValue();
+            }
         }
 
         $this->parser->getStream()->expect(Twig_Token::BLOCK_END_TYPE);

test/Twig/Tests/Fixtures/tags/autoescape/basic.test

@@ -1,6 +1,9 @@
 --TEST--
 "autoescape" tag applies escaping on its children
 --TEMPLATE--
+{% autoescape %}
+{{ var }}<br />
+{% endautoescape %}
 {% autoescape 'html' %}
 {{ var }}<br />
 {% endautoescape %}
@@ -17,6 +20,7 @@
 return array('var' => '<br />')
 --EXPECT--
 &lt;br /&gt;<br />
+&lt;br /&gt;<br />
 <br /><br />
 &lt;br /&gt;<br />
 <br /><br />