From bb0bce31a86da561a4b1fc8989093e145d53af58 Mon Sep 17 00:00:00 2001
From: Claude <noreply@anthropic.com>
Date: Fri, 9 Jan 2026 10:00:15 +0000
Subject: [PATCH] Refactor: extract emoji shortcode regex to constant

Move the emoji shortcode matching pattern to EMOJI_SHORTCODE_REGEX
constant in emoji-helpers.ts for reuse across reaction renderers.
---
 src/components/nostr/compact/ReactionCompactPreview.tsx | 3 ++-
 src/components/nostr/kinds/ReactionRenderer.tsx         | 3 ++-
 src/lib/emoji-helpers.ts                                | 6 ++++++
 3 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/components/nostr/compact/ReactionCompactPreview.tsx b/src/components/nostr/compact/ReactionCompactPreview.tsx
index cb39993..fc0faca 100644
--- a/src/components/nostr/compact/ReactionCompactPreview.tsx
+++ b/src/components/nostr/compact/ReactionCompactPreview.tsx
@@ -4,6 +4,7 @@ import { Heart, ThumbsUp, ThumbsDown, Flame, Smile } from "lucide-react";
 import { useNostrEvent } from "@/hooks/useNostrEvent";
 import { UserName } from "../UserName";
 import { RichText } from "../RichText";
+import { EMOJI_SHORTCODE_REGEX } from "@/lib/emoji-helpers";
 
 /**
  * Compact preview for Kind 7 (Reaction)
@@ -26,7 +27,7 @@ export function ReactionCompactPreview({ event }: { event: NostrEvent }) {
 
   // Parse reaction content for custom emoji
   const parsedReaction = useMemo(() => {
-    const match = reaction.match(/^:([a-zA-Z0-9_-]+):$/);
+    const match = reaction.match(EMOJI_SHORTCODE_REGEX);
     if (match && customEmojis[match[1]]) {
       return {
         type: "custom" as const,
diff --git a/src/components/nostr/kinds/ReactionRenderer.tsx b/src/components/nostr/kinds/ReactionRenderer.tsx
index 25f5c37..10a4c3f 100644
--- a/src/components/nostr/kinds/ReactionRenderer.tsx
+++ b/src/components/nostr/kinds/ReactionRenderer.tsx
@@ -6,6 +6,7 @@ import { NostrEvent } from "@/types/nostr";
 import { KindRenderer } from "./index";
 import { EventCardSkeleton } from "@/components/ui/skeleton";
 import { parseReplaceableAddress } from "applesauce-core/helpers/pointers";
+import { EMOJI_SHORTCODE_REGEX } from "@/lib/emoji-helpers";
 
 /**
  * Renderer for Kind 7 - Reactions
@@ -32,7 +33,7 @@ export function Kind7Renderer({ event }: BaseEventProps) {
   // Parse reaction content to detect custom emoji shortcodes
   // Format: :shortcode: in the content
   const parsedReaction = useMemo(() => {
-    const match = reaction.match(/^:([a-zA-Z0-9_-]+):$/);
+    const match = reaction.match(EMOJI_SHORTCODE_REGEX);
     if (match && customEmojis[match[1]]) {
       return {
         type: "custom" as const,
diff --git a/src/lib/emoji-helpers.ts b/src/lib/emoji-helpers.ts
index c5a299a..709dcd9 100644
--- a/src/lib/emoji-helpers.ts
+++ b/src/lib/emoji-helpers.ts
@@ -1,6 +1,12 @@
 import { getOrComputeCachedValue } from "applesauce-core/helpers";
 import type { NostrEvent } from "@/types/nostr";
 
+/**
+ * Regex pattern to match NIP-30 custom emoji shortcodes like :shortcode:
+ * Supports alphanumeric characters, underscores, and dashes
+ */
+export const EMOJI_SHORTCODE_REGEX = /^:([a-zA-Z0-9_-]+):$/;
+
 /**
  * Represents a parsed emoji tag from NIP-30
  */