From 7214d574630842e4efb76d6c3494a180cbc2a930 Mon Sep 17 00:00:00 2001
From: href <href@random.sh>
Date: Wed, 12 Dec 2018 21:44:08 +0100
Subject: [PATCH] Extended nicknames: allow dashes.

---
 config/config.md         | 2 +-
 lib/pleroma/formatter.ex | 2 +-
 lib/pleroma/user.ex      | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/config/config.md b/config/config.md
index e8e2cf6f8..6b45c01da 100644
--- a/config/config.md
+++ b/config/config.md
@@ -63,7 +63,7 @@ This filter replaces the filename (not the path) of an upload. For complete obfu
   * "masto": Copy verbatim, as in Mastodon.
   * "noop": Don't copy the subject.
 * `always_show_subject_input`: When set to false, auto-hide the subject field when it's empty.
-* `extended_nickname_format`: Set to `true` to use extended local nicknames format (allows underscore). This will break federation with
+* `extended_nickname_format`: Set to `true` to use extended local nicknames format (allows underscores/dashes). This will break federation with
     older software for theses nicknames.
 
 ## :fe
diff --git a/lib/pleroma/formatter.ex b/lib/pleroma/formatter.ex
index 1fea1c57a..133683794 100644
--- a/lib/pleroma/formatter.ex
+++ b/lib/pleroma/formatter.ex
@@ -18,7 +18,7 @@ def parse_tags(text, data \\ %{}) do
   def parse_mentions(text) do
     # Modified from https://www.w3.org/TR/html5/forms.html#valid-e-mail-address
     regex =
-      ~r/@[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]*@?[a-zA-Z0-9_](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*/u
+      ~r/@[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]*@?[a-zA-Z0-9_-](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*/u
 
     Regex.scan(regex, text)
     |> List.flatten()
diff --git a/lib/pleroma/user.ex b/lib/pleroma/user.ex
index f10cdfbc8..49928bc13 100644
--- a/lib/pleroma/user.ex
+++ b/lib/pleroma/user.ex
@@ -14,7 +14,7 @@ defmodule Pleroma.User do
   @email_regex ~r/^[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/
 
   @strict_local_nickname_regex ~r/^[a-zA-Z\d]+$/
-  @extended_local_nickname_regex ~r/^[a-zA-Z\d_]+$/
+  @extended_local_nickname_regex ~r/^[a-zA-Z\d_-]+$/
 
   schema "users" do
     field(:bio, :string)