Implement Url

src/Components/Inlines/Url.php

@@ -0,0 +1,74 @@
+<?php
+
+namespace Erusev\Parsedown\Components\Inlines;
+
+use Erusev\Parsedown\AST\StateRenderable;
+use Erusev\Parsedown\Components\Inline;
+use Erusev\Parsedown\Html\Renderables\Element;
+use Erusev\Parsedown\Html\Renderables\Text;
+use Erusev\Parsedown\Parsedown;
+use Erusev\Parsedown\Parsing\Excerpt;
+use Erusev\Parsedown\State;
+
+final class Url implements Inline
+{
+    use WidthTrait;
+
+    /** @var string */
+    private $url;
+
+    /** @var int */
+    private $position;
+
+    /**
+     * @param string $url
+     * @param int $position
+     */
+    public function __construct($url, $position)
+    {
+        $this->url = $url;
+        $this->width = \strlen($url);
+        $this->position = $position;
+    }
+
+    /**
+     * @param Excerpt $Excerpt
+     * @param State $State
+     * @return static|null
+     */
+    public static function build(Excerpt $Excerpt, State $State)
+    {
+        $text = $Excerpt->text();
+
+        if (\strlen($text) < 2 or \substr($text, 2, 1) !== '/') {
+            return null;
+        }
+
+        if (\strpos($Excerpt->context(), 'http') !== false
+            and \preg_match('/\bhttps?+:[\/]{2}[^\s<]+\b\/*+/ui', $Excerpt->context(), $matches, \PREG_OFFSET_CAPTURE)
+        ) {
+            return new self($matches[0][0], \intval($matches[0][1]));
+        }
+
+        return null;
+    }
+
+    /**
+     * Return an integer to declare that the inline should be treated as if it
+     * started from that position in the excerpt given to static::build.
+     * Return null to use the excerpt offset value.
+     * @return int|null
+     * */
+    public function modifyStartPositionTo()
+    {
+        return $this->position;
+    }
+
+    /**
+     * @return Element
+     */
+    public function stateRenderable(Parsedown $_)
+    {
+        return new Element('a', ['href' => $this->url], [new Text($this->url)]);
+    }
+}