Merge pull request #19473 from Homebrew/cask-token

cask/utils: alllow use of @ in cask name

Library/Homebrew/cask/utils.rb

@@ -111,9 +111,8 @@ module Cask
     def self.token_from(name)
       name.downcase
           .gsub("+", "-plus-")
-          .gsub("@", "-at-")
           .gsub(/[ _·•]/, "-")
-          .gsub(/[^\w-]/, "")
+          .gsub(/[^\w@-]/, "")
           .gsub(/--+/, "-")
           .delete_prefix("-")
           .delete_suffix("-")

Library/Homebrew/test/dev-cmd/create_spec.rb

@@ -17,7 +17,12 @@ RSpec.describe Homebrew::DevCmd::Create do
   end
 
   it "generates valid cask tokens" do
-    t = Cask::Utils.token_from("A Foo@Bar_Baz++!")
-    expect(t).to eq("a-foo-at-bar-baz-plus-plus")
+    t = Cask::Utils.token_from("A FooBar_Baz++!")
+    expect(t).to eq("a-foobar-baz-plus-plus")
+  end
+
+  it "retains @ in cask tokens" do
+    t = Cask::Utils.token_from("test@preview")
+    expect(t).to eq("test@preview")
   end
 end