From f6cf0d56708a1aff930bc146aaee3ff1e3da5934 Mon Sep 17 00:00:00 2001
From: jack1142 <6032823+jack1142@users.noreply.github.com>
Date: Thu, 2 Sep 2021 01:45:25 +0200
Subject: [PATCH] Allow dots in the middle of repo names (#5214)

* Allow dots in the middle of repo names

* Screw you, Black
---
 redbot/cogs/downloader/downloader.py | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/redbot/cogs/downloader/downloader.py b/redbot/cogs/downloader/downloader.py
index 4eb6d6781..5771b8119 100644
--- a/redbot/cogs/downloader/downloader.py
+++ b/redbot/cogs/downloader/downloader.py
@@ -540,9 +540,15 @@ class Downloader(commands.Cog):
         agreed = await do_install_agreement(ctx)
         if not agreed:
             return
-        if re.match(r"^[a-zA-Z0-9_\-]*$", name) is None:
+        if name.startswith(".") or name.endswith("."):
+            await ctx.send(_("Repo names cannot start or end with a dot."))
+            return
+        if re.match(r"^[a-zA-Z0-9_\-\.]+$", name) is None:
             await ctx.send(
-                _("Repo names can only contain characters A-z, numbers, underscores, and hyphens.")
+                _(
+                    "Repo names can only contain characters A-z, numbers, underscores, hyphens,"
+                    " and dots."
+                )
             )
             return
         try: