Add ability to modify text before rendering HTML

src/Ciconia/Common/Tag.php

@@ -169,6 +169,22 @@ public function getType()
         return $this->type;
     }
 
+    /**
+     * @return bool
+     */
+    public function isBlock()
+    {
+        return $this->type === self::TYPE_BLOCK;
+    }
+
+    /**
+     * @return bool
+     */
+    public function isInline()
+    {
+        return $this->type === self::TYPE_INLINE;
+    }
+
     /**
      * Sets an attribute
      *

src/Ciconia/Markdown.php

@@ -4,6 +4,7 @@
 
 use Ciconia\Common\Collection;
 use Ciconia\Common\Text;
+use Ciconia\Event\EmitterAwareInterface;
 use Ciconia\Event\EmitterInterface;
 use Ciconia\Event\EmitterTrait;
 use Ciconia\Renderer\RendererInterface;
@@ -59,6 +60,10 @@ class Markdown implements EmitterInterface
      */
     public function __construct(RendererInterface $renderer, Text $rawContent = null, array $options = array())
     {
+        if ($renderer instanceof EmitterAwareInterface) {
+            $renderer->setEmitter($this);
+        }
+
         $this->renderer      = $renderer;
         $this->options       = $this->parseOptions($options);
         $this->hashRegistry  = new HashRegistry();

src/Ciconia/Renderer/HtmlRenderer.php

@@ -4,22 +4,32 @@
 
 use Ciconia\Common\Tag;
 use Ciconia\Common\Text;
+use Ciconia\Event\EmitterAwareInterface;
+use Ciconia\Event\EmitterAwareTrait;
 use Symfony\Component\OptionsResolver\OptionsResolver;
 
 /**
  * Renders markdown result to HTML format
  *
  * @author Kazuyuki Hayashi <[email protected]>
  */
-class HtmlRenderer implements RendererInterface
+class HtmlRenderer implements RendererInterface, EmitterAwareInterface
 {
 
+    use EmitterAwareTrait;
+
     /**
      * {@inheritdoc}
      */
     public function renderParagraph($content, array $options = array())
     {
-        return '<p>' . $content . "</p>";
+        $options = $this->createResolver()->resolve($options);
+
+        $tag = new Tag('p');
+        $tag->setText($content);
+        $tag->setAttributes($options['attr']);
+
+        return $tag->render();
     }
 
     /**
@@ -28,7 +38,6 @@ public function renderParagraph($content, array $options = array())
     public function renderHeader($content, array $options = array())
     {
         $options = $this->createResolver()
-            ->setDefaults(['attr' => []])
             ->setRequired(['level'])
             ->setAllowedValues(['level' => [1, 2, 3, 4, 5, 6]])
             ->resolve($options);
@@ -51,23 +60,27 @@ public function renderCodeBlock($content, array $options = array())
 
         $options = $this->createResolver()->resolve($options);
 
-        $pre = new Tag('pre');
-        $pre->setAttributes($options['attr']);
-
-        $code = new Tag('code');
-        $code->setText($content->append("\n"));
+        $tag = Tag::create('pre')
+            ->setAttributes($options['attr'])
+            ->setText(
+                Tag::create('code')
+                    ->setText($content->append("\n"))
+                    ->render()
+            );
 
-        $pre->setText($code->render());
-
-        return $pre->render();
+        return $tag->render();
     }
 
     /**
      * {@inheritdoc}
      */
     public function renderCodeSpan($content, array $options = array())
     {
-        return "<code>$content</code>";
+        $tag = new Tag('code');
+        $tag->setType(Tag::TYPE_INLINE);
+        $tag->setText($content);
+
+        return $tag->render();
     }
 
     /**
@@ -100,7 +113,10 @@ public function renderLink($content, array $options = array())
      */
     public function renderBlockQuote($content, array $options = array())
     {
-        return "<blockquote>\n$content\n</blockquote>";
+        $tag = Tag::create('blockquote')
+            ->setText($content->wrap("\n", "\n"));
+
+        return $tag->render();
     }
 
     /**
@@ -130,15 +146,18 @@ public function renderList($content, array $options = array())
      */
     public function renderListItem($content, array $options = array())
     {
-        return "<li>" . $content . "</li>";
+        return Tag::create('li')->setText($content)->render();
     }
 
     /**
      * {@inheritdoc}
      */
     public function renderHorizontalRule(array $options = array())
     {
-        return '<hr' . $this->getEmptyTagSuffix();
+        return Tag::create('hr')
+            ->setType(Tag::TYPE_INLINE)
+            ->setEmptyTagSuffix($this->getEmptyTagSuffix())
+            ->render();
     }
 
     /**
@@ -163,23 +182,26 @@ public function renderImage($src, array $options = array())
      */
     public function renderBoldText($text, array $options = array())
     {
-        return '<strong>' . $text . '</strong>';
+        return Tag::create('strong')->setText($text)->render();
     }
 
     /**
      * {@inheritdoc}
      */
     public function renderItalicText($text, array $options = array())
     {
-        return '<em>' . $text . '</em>';
+        return Tag::create('em')->setText($text)->render();
     }
 
     /**
      * {@inheritdoc}
      */
     public function renderLineBreak(array $options = array())
     {
-        return '<br' . $this->getEmptyTagSuffix();
+        return Tag::create('br')
+            ->setType(Tag::TYPE_INLINE)
+            ->setEmptyTagSuffix($this->getEmptyTagSuffix())
+            ->render();
     }
 
     /**