- Some more documentation made / fixed

docs/01-echoing.md

@@ -30,7 +30,7 @@ Using `print` or `echo`, which are, by default, made safer by using PHP's native
 
 **[PHP]** Would yield internally:
 
-```php
+```html
 <?php echo htmlspecialchars((string) "Hello World !", 3, 'UTF-8', true) ?>
 
 <?php echo htmlspecialchars((string) "This is another way to output &lt;safe&gt; content", 3, 'UTF-8', true) ?>
@@ -63,7 +63,7 @@ Those tokens represents the equivalent of the printf() function from PHP.
 
 **[PHP]** Would render internally as :
 
-```php
+```html
 <?php 
     $num = 5; 
     $location = 'tree';

docs/10-extension-custom.md

@@ -0,0 +1,4 @@
+# Extension - Creating an extension
+
+
+

docs/10-extension-json.md

@@ -0,0 +1,4 @@
+# Extension - `json`, `json.pretty`, `json.html`
+
+This extension 
+

src/Extension/JsonExtension.php

@@ -20,7 +20,7 @@ class JsonExtension implements Extension, FunctionExtension {
                 break;
 
             case "json.html":
-                return "<?php echo htmlentities(json_encode($arguments, {$this->flags}), ENT_QUOTES, 'UTF-8') ?>";
+                return "<?php echo htmlentities(json_encode($arguments, $flag), ENT_QUOTES, 'UTF-8') ?>";
         }
 
         $cls = static::class;
@@ -32,7 +32,7 @@ class JsonExtension implements Extension, FunctionExtension {
     {
         return [
             'json' => function($arguments, ? int $flags = null) {
-                return json_encode($arguments, \JSON_FORCE_OBJECT);
+                return json_encode($arguments, $flags ?? $this->flags);
             },
         ];
     }

src/Extension/MoneyExtension.php

@@ -4,7 +4,7 @@ namespace Picea\Extension;
 
 use Picea\Compiler\Context;
 
-class MoneyExtension implements Extension {
+class MoneyExtension implements Extension, FunctionExtension {
 
     public string $token = "money";
 
@@ -14,15 +14,16 @@ class MoneyExtension implements Extension {
 
     public \NumberFormatter $formatter;
 
-    public function __construct(Context $context) {
-        $this->register($context);
+    public function __construct() {
         $this->locale = explode('.', \Locale::getDefault())[0];
         $this->formatter = new \NumberFormatter($this->locale, \NumberFormatter::CURRENCY);
     }
 
-    public function register(Context $context) : void
+    public function exportFunctions(): array
     {
-        $context->pushFunction("money", [ $this, 'money' ]);
+        return [
+            "money" => [ $this, 'money' ]
+        ];
     }
 
     public function parse(\Picea\Compiler\Context &$context, ?string $arguments, string $token) {

src/Extension/TitleExtension.php

@@ -2,21 +2,17 @@
 
 namespace Picea\Extension;
 
-use Picea\Compiler\Context;
-
-class TitleExtension implements Extension {
+class TitleExtension implements Extension, FunctionExtension {
 
     public string $token = "title";
     
     public string $title = "";
 
-    public function __construct(Context $context) {
-        $this->register($context);
-    }
-
-    public function register(Context $context) : void
+    public function exportFunctions(): array
     {
-        $context->pushFunction("title", [ $this, 'handleTitle' ]);
+        return [
+            "title" => [$this, 'handleTitle'],
+        ];
     }
 
     public function parse(\Picea\Compiler\Context &$context, ?string $arguments, string $token) {

src/Extension/UrlExtension.php

@@ -4,7 +4,7 @@ namespace Picea\Extension;
 
 use Picea\Compiler\Context;
 
-class UrlExtension implements Extension {
+class UrlExtension implements Extension, FunctionExtension {
 
     public const URLIZE_PATTERN_URL = <<<PATTERN
         ~(?<!href=['"])https?://[\w/._\-&?]*(?!</a>)(?=[^\w/._\-&])~s
@@ -24,10 +24,9 @@ PATTERN;
 
     public array $tokens = [ "url" , "route", "route.cacheless", "asset", "url.current", "url.parameters", "slug" ];
 
-    public function __construct(Context $context, string $urlBase = "", string $assetToken = "") {
+    public function __construct(string $urlBase = "", string $assetToken = "") {
         $this->urlBase = trim($urlBase, "/");
         $this->assetToken = $assetToken;
-        $this->register($context);
    }
 
     public function parse(\Picea\Compiler\Context &$context, ?string $arguments, string $token) : ?string
@@ -55,14 +54,16 @@ PATTERN;
         return null;
     }
 
-    public function register(Context $context) : void
+    public function exportFunctions(): array
     {
-        $context->pushFunction("url",   [ $this, 'buildUrl' ]);
-        $context->pushFunction("current_url",   [ $this, 'currentUrl' ]);
-        $context->pushFunction("asset", [ $this, 'buildAssetUrl' ]);
-        $context->pushFunction("route", [ $this, 'buildRouteUrl' ]);
-        $context->pushFunction("slug", [ $this, 'slug' ]);
-        $context->pushFunction("urlize", [ $this, 'urlize' ]);
+        return [
+            "url" => [ $this, 'buildUrl' ],
+            "current_url" => [ $this, 'currentUrl' ],
+            "asset" => [ $this, 'buildAssetUrl' ],
+            "route" => [ $this, 'buildRouteUrl' ],
+            "slug" => [ $this, 'slug' ],
+            "urlize" => [ $this, 'urlize' ]
+        ];
     }
 
     public function getRouteList(bool $full = false) : array

src/Method/Request.php

@@ -7,10 +7,11 @@ use Picea\Extension\Extension,
 
 use Picea\Compiler\Context;
 
+use Picea\Extension\FunctionExtension;
 use Psr\Http\Message\RequestInterface;
 use Psr\Http\Message\ServerRequestInterface;
 
-class Request implements Extension {
+class Request implements Extension, FunctionExtension {
     use ExtensionTrait;
 
     public array $tokens;
@@ -21,18 +22,19 @@ class Request implements Extension {
 
     public function __construct(ServerRequestInterface $request, Context $context) {
         $this->request = $request;
-        $this->register($context);
     }
 
     public function parse(\Picea\Compiler\Context &$context, ?string $arguments, string $token) : string { }
 
-    public function register(Context $context) : void
+    public function exportFunctions(): array
     {
-        $context->pushFunction("cookie", [ $this, 'cookie' ]);
-        $context->pushFunction("get",  [ $this, 'get'  ]);
-        $context->pushFunction("post", [ $this, 'post' ]);
-        $context->pushFunction("request", [ $this, 'request' ]);
-        $context->pushFunction("server", [ $this, 'server' ]);
+        return [
+            "cookie" => [ $this, 'cookie' ],
+            "get" => [ $this, 'get' ],
+            "post" => [ $this, 'post' ],
+            "request" => [ $this, 'request' ],
+            "server" => [ $this, 'server' ],
+        ];
     }
 
     public function cookie(? string $variableName = null, $default = null)