add gemtext features

README.md

@@ -58,6 +58,31 @@ var_dump(
 );
 ```
 
+## Gemtext
+
+Object-oriented API for Gemtext
+
+### Body
+
+Basic methods to work with `text/gemini` documents
+
+```
+$body = new \Yggverse\Gemini\Gemtext\Body(
+    $response->getBody() // gemtext body from client response or .gmi file
+);
+```
+
+#### Body::getH1
+#### Body::getH2
+#### Body::getH3
+#### Body::getLinks
+
+```
+var_dump(
+    $body->getLinks() // returns array of clickable links
+);
+```
+
 ## DokuWiki
 
 Toolkit provides DokuWiki API for Gemini.

src/Gemtext/Body.php

@@ -0,0 +1,86 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Yggverse\Gemini\Gemtext;
+
+class Body
+{
+    private array $_lines = [];
+
+    public function __construct(string $gemtext)
+    {
+        foreach ((array) explode(PHP_EOL, $gemtext) as $line)
+        {
+            $this->_lines[] = $line;
+        }
+    }
+
+    public function getH1(): array
+    {
+        $matches = [];
+
+        foreach ($this->_lines as $line)
+        {
+            if (preg_match('/^#([^#]+)/', trim($line), $match))
+            {
+                $matches[] = trim(
+                    $match[1]
+                );
+            }
+        }
+
+        return $matches;
+    }
+
+    public function getH2(): array
+    {
+        $matches = [];
+
+        foreach ($this->_lines as $line)
+        {
+            if (preg_match('/^##([^#]+)/', trim($line), $match))
+            {
+                $matches[] = trim(
+                    $match[1]
+                );
+            }
+        }
+
+        return $matches;
+    }
+
+    public function getH3(): array
+    {
+        $matches = [];
+
+        foreach ($this->_lines as $line)
+        {
+            if (preg_match('/^###([^#]+)/', trim($line), $match))
+            {
+                $matches[] = trim(
+                    $match[1]
+                );
+            }
+        }
+
+        return $matches;
+    }
+
+    public function getLinks(): array
+    {
+        $matches = [];
+
+        foreach ($this->_lines as $i => $line)
+        {
+            if (preg_match('/^=>(.*)/', trim($line), $match))
+            {
+                $matches[] = trim(
+                    $match[1]
+                );
+            }
+        }
+
+        return $matches;
+    }
+}