From b59247df6138320dd7a596b6899fc89a54947fd8 Mon Sep 17 00:00:00 2001
From: gnuxie <Gnuxie@protonmail.com>
Date: Fri, 10 Feb 2023 17:10:17 +0000
Subject: [PATCH] Allow fragments to be used in DeadDocument.

They work like React.Fragment except we don't have components yet
so it has to be a special node.
---
 src/commands/interface-manager/DeadDocument.ts         | 1 +
 src/commands/interface-manager/DeadDocumentHtml.ts     | 3 +++
 src/commands/interface-manager/DeadDocumentMarkdown.ts | 3 +++
 src/commands/interface-manager/JSXFactory.ts           | 7 ++++++-
 4 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/src/commands/interface-manager/DeadDocument.ts b/src/commands/interface-manager/DeadDocument.ts
index 16d6b51b..06c5540a 100644
--- a/src/commands/interface-manager/DeadDocument.ts
+++ b/src/commands/interface-manager/DeadDocument.ts
@@ -63,6 +63,7 @@ export enum NodeTag {
     BoldFace = 'b',
     ItalicFace = 'i',
     Anchor = 'a',
+    Fragment = 'fragment',
 }
 
 /**
diff --git a/src/commands/interface-manager/DeadDocumentHtml.ts b/src/commands/interface-manager/DeadDocumentHtml.ts
index fc6fa0c9..1d0283c1 100644
--- a/src/commands/interface-manager/DeadDocumentHtml.ts
+++ b/src/commands/interface-manager/DeadDocumentHtml.ts
@@ -62,4 +62,7 @@ HTML_RENDERER.registerRenderer<FringeLeafRenderFunction<TransactionalOutputConte
         context.output.writeString('>')
     },
     staticString('</a>')
+).registerInnerNode(NodeTag.Fragment,
+    blank,
+    blank
 );
diff --git a/src/commands/interface-manager/DeadDocumentMarkdown.ts b/src/commands/interface-manager/DeadDocumentMarkdown.ts
index 173106aa..d6473702 100644
--- a/src/commands/interface-manager/DeadDocumentMarkdown.ts
+++ b/src/commands/interface-manager/DeadDocumentMarkdown.ts
@@ -132,4 +132,7 @@ MARKDOWN_RENDERER.registerRenderer<FringeLeafRenderFunction<TransactionalOutputC
         }
         context.output.writeString(`](${href})`);
     }
+).registerInnerNode(NodeTag.Fragment,
+    blank,
+    blank
 );
diff --git a/src/commands/interface-manager/JSXFactory.ts b/src/commands/interface-manager/JSXFactory.ts
index 0f11ddd5..e85aa5ca 100644
--- a/src/commands/interface-manager/JSXFactory.ts
+++ b/src/commands/interface-manager/JSXFactory.ts
@@ -23,8 +23,13 @@ export function JSXFactory(tag: NodeTag, properties: any, ...rawChildren: (Docum
             makeLeafNode<TextNode>(NodeTag.TextNode, node, (rawChild as number).toString());
         } else if (Array.isArray(rawChild)) {
             rawChild.forEach(ensureChild);
+        // Then it's a DocumentNode|LeafNode
         } else if (typeof rawChild.leafNode === 'boolean') {
-            node.addChild(rawChild);
+            if (rawChild.tag === NodeTag.Fragment) {
+                (rawChild as DocumentNode).getChildren().forEach(node.addChild, node);
+            } else {
+                node.addChild(rawChild);
+            }
         } else {
             const presentationType = presentationTypeOf(rawChild);
             if (presentationType !== undefined) {