refactor(blockquotes): cleanup code

src/index.ts

@@ -41,34 +41,29 @@ const processNode =
       // So we just need to addtionally check if the following one is a block.
       // The legacy title variant is not affected since it checks an inline and does not care about the newline.
 
-      // If this is not a gfm alert then we would manipulate the original children and the next processor would not be able to handle the children correctly.
-      const paragraphChildrenCopy = [...paragraph.children]
+      // Considering the reason why the paragraph ends here, the following one should be a children of the blockquote, which means it is always a block.
+      // So no more check is required.
+      title = text.value
+      admonitionType = config.types[title]
+
+      if (!admonitionType) {
+        return
+      }
 
       // No addtional inlines can exist in this paragraph for the title...
-      if (paragraphChildrenCopy.length > 1) {
+      if (paragraph.children.length > 1) {
         // Unless it is an inline break, which can be transformed to from 2 spaces with a newline.
-        if (paragraphChildrenCopy.at(1)?.type == 'break') {
+        if (paragraph.children.at(1)?.type == 'break') {
           // When it is, we actually have already found the line break required by GitHub.
           // So we just strip the additional `<br>` element.
           // The title element will be removed later.
-          paragraphChildrenCopy.splice(1, 1)
+          paragraph.children.splice(1, 1)
         } else {
           return
         }
       }
-
-      // Considering the reason why the paragraph ends here, the following one should be a children of the blockquote, which means it is always a block.
-      // So no more check is required.
-      title = text.value
-      admonitionType = config.types[title]
-
-      if (admonitionType) {
-        // Remove the text as the title
-        paragraph.children.shift()
-        paragraph.children.shift()
-      } else {
-        return
-      }
+      // strip the title
+      paragraph.children.shift()
     } else {
       const textBody = text.value.substring(titleEnd + 1)
       title = text.value.substring(0, titleEnd)