First Commit

vendor/league/commonmark/src/Parser/Inline/NewlineParser.php

@@ -0,0 +1,53 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * This file is part of the league/commonmark package.
+ *
+ * (c) Colin O'Dell <colinodell@gmail.com>
+ *
+ * Original code based on the CommonMark JS reference parser (https://bitly.com/commonmark-js)
+ *  - (c) John MacFarlane
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace League\CommonMark\Parser\Inline;
+
+use League\CommonMark\Node\Inline\Newline;
+use League\CommonMark\Node\Inline\Text;
+use League\CommonMark\Parser\InlineParserContext;
+
+final class NewlineParser implements InlineParserInterface
+{
+    public function getMatchDefinition(): InlineParserMatch
+    {
+        return InlineParserMatch::regex('\\n');
+    }
+
+    public function parse(InlineParserContext $inlineContext): bool
+    {
+        $inlineContext->getCursor()->advanceBy(1);
+
+        // Check previous inline for trailing spaces
+        $spaces     = 0;
+        $lastInline = $inlineContext->getContainer()->lastChild();
+        if ($lastInline instanceof Text) {
+            $trimmed = \rtrim($lastInline->getLiteral(), ' ');
+            $spaces  = \strlen($lastInline->getLiteral()) - \strlen($trimmed);
+            if ($spaces) {
+                $lastInline->setLiteral($trimmed);
+            }
+        }
+
+        if ($spaces >= 2) {
+            $inlineContext->getContainer()->appendChild(new Newline(Newline::HARDBREAK));
+        } else {
+            $inlineContext->getContainer()->appendChild(new Newline(Newline::SOFTBREAK));
+        }
+
+        return true;
+    }
+}