From 46d7bed409aa0355ffa4acff098c7ee803c57593 Mon Sep 17 00:00:00 2001
From: Brandon Thomas <echelon@gmail.com>
Date: Sat, 25 May 2024 19:12:05 -0400
Subject: [PATCH] hack to preserve youtube urls

---
 .../lib/markdown/src/markdown_with_socials_to_html.rs | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/crates/lib/markdown/src/markdown_with_socials_to_html.rs b/crates/lib/markdown/src/markdown_with_socials_to_html.rs
index c2c7f8962a..093b177001 100644
--- a/crates/lib/markdown/src/markdown_with_socials_to_html.rs
+++ b/crates/lib/markdown/src/markdown_with_socials_to_html.rs
@@ -94,6 +94,11 @@ static YOUTUBE_CHANNEL: Lazy<Regex> = Lazy::new(|| {
 });
 
 fn replace_youtube_channel(input: &str) -> Cow<str> {
+  if input.contains("/channel/") {
+    // TODO(bt,2024-05-25): Regex crate does not support lookahead.
+    //  This is a temporary hack to prevent clobbering actual YouTube URLs.
+    return Cow::Borrowed(input);
+  }
   YOUTUBE_CHANNEL.replace(input, |caps: &Captures| {
     format!("[{}](https://www.youtube.com/@{})", &caps[1], &caps[4])
   })
@@ -270,6 +275,12 @@ mod tests {
   mod youtube {
     use super::*;
 
+    #[test]
+    pub fn full_channels_not_changed() {
+      assert_eq!(&markdown_with_socials_to_html("https://www.youtube.com/channel/UCEU3gjhuT1V86Ru_RoCTcCA "),
+                 "<p>https://www.youtube.com/channel/UCEU3gjhuT1V86Ru_RoCTcCA </p>\n");
+    }
+
     pub mod with_at {
       use super::*;