2 files changed, 15 insertions, 2 deletions
diff --git a/lib/rubygems/util/licenses.rb b/lib/rubygems/util/licenses.rb
index 08ebd925f7..f4a99af39e 100644
--- a/lib/rubygems/util/licenses.rb
+++ b/lib/rubygems/util/licenses.rb
@@ -1,5 +1,9 @@
-# frozen_string_literal: false
+# frozen_string_literal: true
+require 'rubygems/text'
+
 class Gem::Licenses
+  extend Gem::Text
+
   NONSTANDARD = 'Nonstandard'.freeze
 
   # Software Package Data Exchange (SPDX) standard open-source software
@@ -327,4 +331,13 @@ class Gem::Licenses
   def self.match?(license)
     !REGEXP.match(license).nil?
   end
+
+  def self.suggestions(license)
+    by_distance = IDENTIFIERS.group_by do |identifier|
+      levenshtein_distance(identifier, license)
+    end
+    lowest = by_distance.keys.min
+    return unless lowest < license.size
+    by_distance[lowest]
+  end
 end
diff --git a/lib/rubygems/util/list.rb b/lib/rubygems/util/list.rb
index 83dc8497c4..9c25f6b6dc 100644
--- a/lib/rubygems/util/list.rb
+++ b/lib/rubygems/util/list.rb
@@ -1,4 +1,4 @@
-# frozen_string_literal: false
+# frozen_string_literal: true
 module Gem
   class List
     include Enumerable