From b6eee49172119104b201fee988bcd60cb8eca45f Mon Sep 17 00:00:00 2001
From: cpacker <packercharles@gmail.com>
Date: Sun, 30 Nov 2025 19:47:51 -0800
Subject: [PATCH] fix: patch newline inserts in input

---
 src/cli/components/PasteAwareTextInput.tsx | 17 ++++++++++++-----
 src/cli/helpers/pasteRegistry.ts           |  6 +++++-
 2 files changed, 17 insertions(+), 6 deletions(-)

diff --git a/src/cli/components/PasteAwareTextInput.tsx b/src/cli/components/PasteAwareTextInput.tsx
index 444a49b..69e66a3 100644
--- a/src/cli/components/PasteAwareTextInput.tsx
+++ b/src/cli/components/PasteAwareTextInput.tsx
@@ -28,6 +28,11 @@ function countLines(text: string): number {
   return (text.match(/\r\n|\r|\n/g) || []).length + 1;
 }
 
+/** Replace newlines with visual indicator for display */
+function sanitizeForDisplay(text: string): string {
+  return text.replace(/\r\n|\r|\n/g, "↵");
+}
+
 export function PasteAwareTextInput({
   value,
   onChange,
@@ -110,14 +115,15 @@ export function PasteAwareTextInput({
             setNudgeCursorOffset(nextCaret);
             caretOffsetRef.current = nextCaret;
           } else {
+            const displayText = sanitizeForDisplay(translated);
             const newDisplay =
-              displayValue.slice(0, at) + translated + displayValue.slice(at);
+              displayValue.slice(0, at) + displayText + displayValue.slice(at);
             const newActual =
               actualValue.slice(0, at) + translated + actualValue.slice(at);
             setDisplayValue(newDisplay);
             setActualValue(newActual);
             onChange(newDisplay);
-            const nextCaret = at + translated.length;
+            const nextCaret = at + displayText.length;
             setNudgeCursorOffset(nextCaret);
             caretOffsetRef.current = nextCaret;
           }
@@ -211,9 +217,10 @@ export function PasteAwareTextInput({
         return;
       }
 
-      // Otherwise, insert the translated text inline
+      // Otherwise, insert the translated text inline (sanitize newlines for display)
+      const displayText = sanitizeForDisplay(translated);
       const newDisplayValue =
-        a.slice(0, lcp) + translated + a.slice(a.length - lcs);
+        a.slice(0, lcp) + displayText + a.slice(a.length - lcs);
       const newActualValue =
         actualValue.slice(0, lcp) +
         translated +
@@ -222,7 +229,7 @@ export function PasteAwareTextInput({
       setDisplayValue(newDisplayValue);
       setActualValue(newActualValue);
       onChange(newDisplayValue);
-      const nextCaret = lcp + translated.length;
+      const nextCaret = lcp + displayText.length;
       setNudgeCursorOffset(nextCaret);
       caretOffsetRef.current = nextCaret;
       return;
diff --git a/src/cli/helpers/pasteRegistry.ts b/src/cli/helpers/pasteRegistry.ts
index 14f5909..8988954 100644
--- a/src/cli/helpers/pasteRegistry.ts
+++ b/src/cli/helpers/pasteRegistry.ts
@@ -25,7 +25,8 @@ export function allocatePaste(content: string): number {
 
 export function resolvePlaceholders(text: string): string {
   if (!text) return text;
-  return text.replace(
+  // First resolve text placeholders
+  let result = text.replace(
     /\[Pasted text #(\d+) \+(\d+) lines\]/g,
     (_match, idStr) => {
       const id = Number(idStr);
@@ -33,6 +34,9 @@ export function resolvePlaceholders(text: string): string {
       return content !== undefined ? content : _match;
     },
   );
+  // Then convert visual newline indicators back to real newlines
+  result = result.replace(/↵/g, "\n");
+  return result;
 }
 
 export function extractTextPlaceholderIds(text: string): number[] {