1 files changed, 71 insertions, 0 deletions
diff --git a/vendor/league/commonmark/src/Extension/Footnote/Parser/AnonymousFootnoteRefParser.php b/vendor/league/commonmark/src/Extension/Footnote/Parser/AnonymousFootnoteRefParser.php
new file mode 100644
index 0000000000..cf7f20961e
--- /dev/null
+++ b/vendor/league/commonmark/src/Extension/Footnote/Parser/AnonymousFootnoteRefParser.php
@@ -0,0 +1,71 @@
+<?php
+
+/*
+ * This file is part of the league/commonmark package.
+ *
+ * (c) Colin O'Dell <colinodell@gmail.com>
+ * (c) Rezo Zero / Ambroise Maupate
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+declare(strict_types=1);
+
+namespace League\CommonMark\Extension\Footnote\Parser;
+
+use League\CommonMark\Extension\Footnote\Node\FootnoteRef;
+use League\CommonMark\Inline\Parser\InlineParserInterface;
+use League\CommonMark\InlineParserContext;
+use League\CommonMark\Normalizer\SlugNormalizer;
+use League\CommonMark\Normalizer\TextNormalizerInterface;
+use League\CommonMark\Reference\Reference;
+
+final class AnonymousFootnoteRefParser implements InlineParserInterface
+{
+    /** @var TextNormalizerInterface */
+    private $slugNormalizer;
+
+    public function __construct()
+    {
+        $this->slugNormalizer = new SlugNormalizer();
+    }
+
+    public function getCharacters(): array
+    {
+        return ['^'];
+    }
+
+    public function parse(InlineParserContext $inlineContext): bool
+    {
+        $container = $inlineContext->getContainer();
+        $cursor = $inlineContext->getCursor();
+        $nextChar = $cursor->peek();
+        if ($nextChar !== '[') {
+            return false;
+        }
+        $state = $cursor->saveState();
+
+        $m = $cursor->match('/\^\[[^\n^\]]+\]/');
+        if ($m !== null) {
+            if (\preg_match('#\^\[([^\]]+)\]#', $m, $matches) > 0) {
+                $reference = $this->createReference($matches[1]);
+                $container->appendChild(new FootnoteRef($reference, $matches[1]));
+
+                return true;
+            }
+        }
+
+        $cursor->restoreState($state);
+
+        return false;
+    }
+
+    private function createReference(string $label): Reference
+    {
+        $refLabel = $this->slugNormalizer->normalize($label);
+        $refLabel = \mb_substr($refLabel, 0, 20);
+
+        return new Reference($refLabel, '#fn:' . $refLabel, $label);
+    }
+}