md

docs/index.php

@@ -1,6 +1,7 @@
 <?php
     require("../libs/page.php");
     require("../libs/form.php");
+    require("../libs/markdown.php");
     
     $ref = 1732684297;
     
@@ -83,7 +84,7 @@
                         </b></div>
                 </div>
             </div>
-            <pre><?php echo htmlspecialchars($post['content']) ?></pre>
+            <pre><?php echo markdown(htmlspecialchars($post['content'])) ?></pre>
         </div>
     <?php }
     page_footer();

libs/markdown.php

@@ -0,0 +1,33 @@
+<?php
+    function markdown($text) {
+        $search = array (
+        '~(?:\s|^)(?:(https?)://([^\s<]+)|(www\.[^\s<]+?\.[^\s<]+))(?<![\.,:])~i',
+        '~(?:@)([^\s]+)(?:\s|$)~i',
+        '~(\[b\])(.*?)(\[\/b\])~i',
+        '~(\[i\])(.*?)(\[\/i\])~i',
+        '~(\[u\])(.*?)(\[\/u\])~i',
+        '~(\[ul\])(.*?)(\[\/ul\])~i',
+        '~(\[li\])(.*?)(\[\/li\])~i',
+        '~(\[h\])(.*?)(\[\/h\])~i',
+        '~(\[url=)(.*?)(\])(.*?)(\[\/url\])~i',
+        '~(\[url\])(.*?)(\[\/url\])~i'
+        );
+        
+        $replace = array (
+        '<a class="link" href="$0" target="_blank">$0</a>',
+        '<a class="link" href="/user.php?id=$1" target="_blank">@$1</a>',
+        '<strong>$2</strong>',
+        '<em>$2</em>',
+        '<u>$2</u>',
+        '<ul>$2</ul>',
+        '<li>$2</li>',
+        '<h2>$2</h2>',
+        '<a class="link" href="$2" target="_blank">$4</a>',
+        '<a class="link" href="$2" target="_blank">$2</a>'
+        );
+        
+        $text = preg_replace($search, $replace, $text);
+        
+        return $text;
+    }
+?>