From 42d5eac47bbd24d62e1a7cfa81e6609c61dc4d40 Mon Sep 17 00:00:00 2001
From: Ian Reynolds <idreyn@gmail.com>
Date: Wed, 20 Jul 2022 13:32:46 -0400
Subject: [PATCH] fix: Filter out empty Str nodes without stripping trailing
 spaces

---
 .../__tests__/fromProsemirror.test.ts             | 15 +++++++++++++++
 src/transform/util.ts                             | 12 +++++++-----
 2 files changed, 22 insertions(+), 5 deletions(-)

diff --git a/src/transform/fromProsemirror/__tests__/fromProsemirror.test.ts b/src/transform/fromProsemirror/__tests__/fromProsemirror.test.ts
index 2261da2..3f9d0bd 100644
--- a/src/transform/fromProsemirror/__tests__/fromProsemirror.test.ts
+++ b/src/transform/fromProsemirror/__tests__/fromProsemirror.test.ts
@@ -79,6 +79,21 @@ describe("fromProsemirror", () => {
         ]);
     });
 
+    it("transforms a string with trailing spaces", () => {
+        expect(
+            fromProsemirror(
+                { type: "text", text: "Hello world " },
+                rules
+            ).asArray()
+        ).toEqual([
+            { type: "Str", content: "Hello" },
+            { type: "Space" },
+            { type: "Str", content: "world" },
+            { type: "Space" },
+        ]);
+    });
+
+
     it("performs a simple transformation from Prosemirror marks to nodes", () => {
         expect(
             fromProsemirror(
diff --git a/src/transform/util.ts b/src/transform/util.ts
index 55d50a2..9f45c76 100644
--- a/src/transform/util.ts
+++ b/src/transform/util.ts
@@ -37,12 +37,14 @@ export const intersperse = (
 
 export const textToStrSpace = (text: string): (Str | Space)[] =>
     intersperse(
-        text
-            .split(" ")
-            .filter((word) => word.length > 0)
-            .map((word) => ({ type: "Str", content: word })),
+        text.split(" ").map((word) => ({ type: "Str", content: word })),
         () => ({ type: "Space" })
-    );
+    ).filter((node) => {
+        if (node.type === "Str" && node.content.length === 0) {
+            return false;
+        }
+        return true;
+    });
 
 export const asArray = <T>(item: T | T[]): T[] => {
     return Array.isArray(item) ? item : [item];