diff --git a/pwiki/page.js b/pwiki/page.js
index dac18c4..038822e 100755
--- a/pwiki/page.js
+++ b/pwiki/page.js
@@ -1167,6 +1167,8 @@ object.Constructor('Page', BasePage, {
 		// handle lists in pages (actions, ... etc.)...
 		if(!page.isPattern){
 			var raw = await page.raw
+			if(raw == null){
+				return }
 			yield* raw instanceof Array ?
 				raw
 					.map(function(p){
@@ -1425,6 +1427,7 @@ module.System = {
 			<macro src="../*">
 				<div>
 					<a href="#@source(./path)">@source(./name)</a>
+					<macro src="./isAction">*</macro>
 					<a href="#@source(./path)/delete">&times;</a>
 					<div style="padding-left: 30px">
 						@source(./tree)
@@ -1494,10 +1497,21 @@ module.System = {
 		var p = this.get('..')
 		return p.title 
 			?? p.name },
-	ctime: function(){
-		return this.get('..').data.ctime ?? '' },
-	mtime: function(){
-		return this.get('..').data.mtime ?? '' },
+	ctime: async function(){
+		return (await this.get('..').data).ctime ?? '' },
+	mtime: async function(){
+		return (await this.get('..').data).mtime ?? '' },
+
+	// XXX EXPERIMENTAL...
+	type: async function(){
+		// XXX also check if a page is a store...
+		return typeof(await this.get('..').data) == 'function' ? 
+			'action' 
+			: 'page' },
+	isAction: async function(){
+		return typeof(await this.get('..').data) == 'function' ?
+			['action']
+			: undefined },
 
 
 	// utils...
diff --git a/pwiki/parser.js b/pwiki/parser.js
index 89d1fd9..5ecfdd1 100755
--- a/pwiki/parser.js
+++ b/pwiki/parser.js
@@ -221,6 +221,9 @@ module.BaseParser = {
 	// NOTE: this internally uses page.macros' keys to generate the 
 	// 		lexing pattern.
 	lex: function*(page, str){
+		str = typeof(str) != 'string' ?
+			str+''
+			: str
 		// XXX we can't get .raw from the page without going async...
 		//str = str 
 		//	?? page.raw
@@ -325,7 +328,7 @@ module.BaseParser = {
 		// XXX we can't get .raw from the page without going async...
 		//lex = lex
 		//	?? this.lex(page) 
-		lex = typeof(lex) == 'string' ?
+		lex = typeof(lex) != 'object' ?
 			this.lex(page, lex)
 			: lex
 
@@ -403,7 +406,7 @@ module.BaseParser = {
 		ast = ast == null ?
 				//this.group(page)
 				this.group(page, await page.raw ?? '')
-			: typeof(ast) == 'string' ?
+			: typeof(ast) != 'object' ?
 				this.group(page, ast)
 			: ast instanceof types.Generator ?
 				ast
@@ -448,7 +451,7 @@ module.BaseParser = {
 	resolve: async function*(page, ast, state={}){
 		ast = ast 
 			?? this.expand(page, null, state)
-		ast = typeof(ast) == 'string' ?
+		ast = typeof(ast) != 'object' ?
 			this.expand(page, ast, state)
 			: ast