feat: support text marks

plugins/tiddlywiki/prosemirror/ast/from-prosemirror.js

@@ -20,11 +20,55 @@ function paragraph(builder, node) {
 	};
 }
 
+// Map ProseMirror mark types to HTML tags
+const markTypeMap = {
+	strong: "strong",
+	em: "em",
+};
+const markRuleMap = {
+	em: "italic",
+	strong: "bold",
+};
+// Define mark priority (inner to outer)
+const markPriority = ["code", "strong", "bold", "em", "italic", "underline", "strike", "strikethrough", "superscript", "subscript"];
 function text(builder, node) {
+	if (!node.text) {
+		return {
+			type: "text",
+			text: ""
+		};
+	}
+	if (node.marks && node.marks.length > 0) {
+		// Create base text node
+		let textNode = {
+			type: "text",
+			text: node.text
+		};
+		const sortedMarks = [...node.marks].sort((a, b) => {
+			const indexA = markPriority.indexOf(a.type);
+			const indexB = markPriority.indexOf(b.type);
+				// Place unknown mark types at the end
+			if (indexA === -1) return 1;
+			if (indexB === -1) return -1;
+			return indexA - indexB;
+		});
+		
+		// Apply marks from inner to outer
+		return sortedMarks.reduce((wrappedNode, mark) => {
+			const tag = markTypeMap[mark.type];
+			const rule = markRuleMap[mark.type];
+			return {
+				type: "element",
+				tag: tag,
+				rule,
+				children: [wrappedNode]
+			};
+		}, textNode);
+	}
 	return {
 		type: "text",
 		text: node.text
-	}
+	};
 }
 
 function heading(builder, node) {

plugins/tiddlywiki/prosemirror/ast/to-prosemirror.js

@@ -102,6 +102,49 @@ function buildListItem(context, node) {
 	return wrapTextNodesInParagraphs(context, processedContent);
 }
 
+function buildTextWithMark(context, node, markType) {
+	const content = convertNodes(context, node.children);
+	return content.map(childNode => {
+		if (childNode.type === "text") {
+			// Add the mark to the text node
+			const marks = childNode.marks || [];
+			return {
+				...childNode,
+				marks: [...marks, { type: markType }]
+			};
+		}
+		return childNode;
+	});
+}
+
+function buildStrong(context, node) {
+	return buildTextWithMark(context, node, "strong");
+}
+
+function buildEm(context, node) {
+	return buildTextWithMark(context, node, "em");
+}
+
+function buildCode(context, node) {
+	return buildTextWithMark(context, node, "code");
+}
+
+function buildUnderline(context, node) {
+	return buildTextWithMark(context, node, "underline");
+}
+
+function buildStrike(context, node) {
+	return buildTextWithMark(context, node, "strike");
+}
+
+function buildSup(context, node) {
+	return buildTextWithMark(context, node, "superscript");
+}
+
+function buildSub(context, node) {
+	return buildTextWithMark(context, node, "subscript");
+}
+
 /**
  * Many node shares same type `element` in wikiAst, we need to distinguish them by tag.
  */
@@ -115,7 +158,14 @@ const elementBuilders = {
 	h6: (context, node) => buildHeading(context, node, 6),
 	ul: buildUnorderedList,
 	ol: buildOrderedList,
-	li: buildListItem
+	li: buildListItem,
+	strong: buildStrong,
+	em: buildEm,
+	code: buildCode,
+	u: buildUnderline,
+	strike: buildStrike,
+	sup: buildSup,
+	sub: buildSub
 };
 
 function element(context, node) {