fix: issue printing adjacent comments

src/__tests__/__snapshots__/comments-multiple-lines-as-text.expected/auto.marko

@@ -0,0 +1 @@
+-- <!--this is--><!--multiple lines--><!--of comments-->Hi!

src/__tests__/__snapshots__/comments-multiple-lines-as-text.expected/concise.marko

@@ -0,0 +1 @@
+-- <!--this is--><!--multiple lines--><!--of comments-->Hi!

src/__tests__/__snapshots__/comments-multiple-lines-as-text.expected/html.marko

@@ -0,0 +1 @@
+-- <!--this is--><!--multiple lines--><!--of comments-->Hi!

src/__tests__/__snapshots__/comments-multiple-lines-as-text.expected/with-parens.marko

@@ -0,0 +1 @@
+-- <!--this is--><!--multiple lines--><!--of comments-->Hi!

src/__tests__/__snapshots__/comments-multiple-lines-not-text.expected/auto.marko

@@ -0,0 +1,5 @@
+<div/>
+<!--this is-->
+<!--multiple lines-->
+<!--of comments-->
+<div/>

src/__tests__/__snapshots__/comments-multiple-lines-not-text.expected/concise.marko

@@ -0,0 +1,5 @@
+div
+<!--this is-->
+<!--multiple lines-->
+<!--of comments-->
+div

src/__tests__/__snapshots__/comments-multiple-lines-not-text.expected/html.marko

@@ -0,0 +1,5 @@
+<div/>
+<!--this is-->
+<!--multiple lines-->
+<!--of comments-->
+<div/>

src/__tests__/__snapshots__/comments-multiple-lines-not-text.expected/with-parens.marko

@@ -0,0 +1,5 @@
+<div/>
+<!--this is-->
+<!--multiple lines-->
+<!--of comments-->
+<div/>

src/__tests__/fixtures/comments-multiple-lines-as-text.marko

@@ -0,0 +1,4 @@
+// this is
+// multiple lines
+// of comments
+-- Hi!

src/__tests__/fixtures/comments-multiple-lines-not-text.1.marko

@@ -0,0 +1,5 @@
+<div/>
+// this is
+// multiple lines
+// of comments
+<div/>

src/index.ts

@@ -381,9 +381,8 @@ export const printers: Record<string, Printer<Node>> = {
                 const isText = isTextLike(childNode, node);
 
                 if (isText) {
-                  const isMarkoText = childNode.type === "MarkoText";
                   textDocs.push(
-                    embedMode && isMarkoText
+                    embedMode && childNode.type === "MarkoText"
                       ? callEmbed(print, child, embedMode, childNode.value)
                       : print(child)
                   );

src/utils/is-text-like.ts

@@ -5,20 +5,30 @@ export default function isTextLike(
   node: Node,
   parent: t.MarkoTag | t.Program
 ): boolean {
-  switch (node.type) {
-    case "MarkoText":
-    case "MarkoPlaceholder":
-      return true;
-    case "MarkoComment": {
-      const body = parent.type === "Program" ? parent.body : parent.body.body;
-      const i = body.indexOf(node);
-      return (
-        i > 0 &&
-        i < body.length - 1 &&
-        (isTextLike(body[i - 1], parent) || isTextLike(body[i + 1], parent))
-      );
+  if (isText(node)) {
+    return true;
+  } else if (node.type === "MarkoComment") {
+    const body = parent.type === "Program" ? parent.body : parent.body.body;
+    const i = body.indexOf(node);
+
+    let j = i;
+    while (j > 0) {
+      const check = body[--j];
+      if (isText(check)) return true;
+      else if (check.type !== "MarkoComment") break;
+    }
+
+    j = i;
+    while (j < body.length - 1) {
+      const check = body[++j];
+      if (isText(check)) return true;
+      else if (check.type !== "MarkoComment") break;
     }
-    default:
-      return false;
   }
+
+  return false;
+}
+
+function isText(node: Node) {
+  return node.type === "MarkoText" || node.type === "MarkoPlaceholder";
 }