1 files changed, 36 insertions, 21 deletions

diff --git a/vendor/league/html-to-markdown/src/Converter/EmphasisConverter.php b/vendor/league/html-to-markdown/src/Converter/EmphasisConverter.php
index 8fd4dd6e2..a122f4052 100644
--- a/vendor/league/html-to-markdown/src/Converter/EmphasisConverter.php
+++ b/vendor/league/html-to-markdown/src/Converter/EmphasisConverter.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace League\HTMLToMarkdown\Converter;
 
 use League\HTMLToMarkdown\Configuration;
@@ -8,50 +10,63 @@ use League\HTMLToMarkdown\ElementInterface;
 
 class EmphasisConverter implements ConverterInterface, ConfigurationAwareInterface
 {
-    /**
-     * @var Configuration
-     */
+    /** @var Configuration */
     protected $config;
 
-    /**
-     * @param Configuration $config
-     */
-    public function setConfig(Configuration $config)
+    protected function getNormTag(?ElementInterface $element): string
+    {
+        if ($element !== null && ! $element->isText()) {
+            $tag = $element->getTagName();
+            if ($tag === 'i' || $tag === 'em') {
+                return 'em';
+            }
+
+            if ($tag === 'b' || $tag === 'strong') {
+                return 'strong';
+            }
+        }
+
+        return '';
+    }
+
+    public function setConfig(Configuration $config): void
     {
         $this->config = $config;
     }
 
-    /**
-     * @param ElementInterface $element
-     *
-     * @return string
-     */
-    public function convert(ElementInterface $element)
+    public function convert(ElementInterface $element): string
     {
-        $tag = $element->getTagName();
+        $tag   = $this->getNormTag($element);
         $value = $element->getValue();
 
-        if (!trim($value)) {
+        if (! \trim($value)) {
             return $value;
         }
 
-        if ($tag === 'i' || $tag === 'em') {
+        if ($tag === 'em') {
             $style = $this->config->getOption('italic_style');
         } else {
             $style = $this->config->getOption('bold_style');
         }
 
-        $prefix = ltrim($value) !== $value ? ' ' : '';
-        $suffix = rtrim($value) !== $value ? ' ' : '';
+        $prefix = \ltrim($value) !== $value ? ' ' : '';
+        $suffix = \rtrim($value) !== $value ? ' ' : '';
+
+        /* If this node is immediately preceded or followed by one of the same type don't emit
+         * the start or end $style, respectively. This prevents <em>foo</em><em>bar</em> from
+         * being converted to *foo**bar* which is incorrect. We want *foobar* instead.
+         */
+        $preStyle  = $this->getNormTag($element->getPreviousSibling()) === $tag ? '' : $style;
+        $postStyle = $this->getNormTag($element->getNextSibling()) === $tag ? '' : $style;
 
-        return $prefix . $style . trim($value) . $style . $suffix;
+        return $prefix . $preStyle . \trim($value) . $postStyle . $suffix;
     }
 
     /**
      * @return string[]
      */
-    public function getSupportedTags()
+    public function getSupportedTags(): array
     {
-        return array('em', 'i', 'strong', 'b');
+        return ['em', 'i', 'strong', 'b'];
     }
 }