Applied comments

Author: wouterj

components/expression_language/extending.rst

@@ -51,6 +51,8 @@ an ``arguments`` variable as their first argument, which is equal to the
 second argument to ``evaluate()`` or ``compile()`` (e.g. the "values" when
 evaluating or the "names" if compiling).
 
+.. _components-expression-language-provider:
+
 Using Expression Providers
 --------------------------
 
@@ -63,9 +65,10 @@ creating a class that implements
 :class:`Symfony\\Component\\ExpressionLanguage\\ExpressionFunctionProviderInterface`.
 
 This interface requires one method: 
-:method:`Symfony\\Component\\ExpressionLanguage\\ExpressionFunctionProviderInterface::getFunctions`.
-This method returns an array of expression functions (instances of
-:class:`Symfony\\Component\\ExpressionLanguage\\ExpressionFunction`) to register.
+:method:`Symfony\\Component\\ExpressionLanguage\\ExpressionFunctionProviderInterface::getFunctions`,
+which returns an array of expression functions (instances of
+:class:`Symfony\\Component\\ExpressionLanguage\\ExpressionFunction`) to
+register.
 
 .. code-block:: php
 
@@ -94,8 +97,12 @@ or by using the second argument of the constructor::
     use Symfony\Component\ExpressionLanguage\ExpressionLanguage;
 
     // using the constructor
-    $language = new ExpressionLanguage(null, array(...));
+    $language = new ExpressionLanguage(null, array(
+        new StringExpressionLanguageProvider(),
+        // ...
+    ));
 
+    // using registerProvider()
     $language->registerProvider(new StringExpressionLanguageProvider());
 
 .. tip::
@@ -111,7 +118,7 @@ or by using the second argument of the constructor::
             public function __construct(ParserCacheInterface $parser = null, array $providers = array())
             {
                 // prepend the default provider to let users override it easily
-                array_unshift($providers, new MyExpressionLanguageProvider());
+                array_unshift($providers, new StringExpressionLanguageProvider());
 
                 parent::__construct($parser, $providers);
             }

reference/dic_tags.rst

@@ -893,10 +893,10 @@ routing.expression_language_provider
 
 **Purpose**: Register a provider for expression language functions in routing
 
-This tag is used to automatically register :ref:`expression function providers
-<components-expression-language-provider>` for the routing expression
-component. Using these providers, you can add custom functions to the routing
-expression language.
+This tag is used to automatically register
+:ref:`expression function providers <components-expression-language-provider>`
+for the routing expression component. Using these providers, you can add custom
+functions to the routing expression language.
 
 security.expression_language_provider
 -------------------------------------