Fix #271 - Readline completely deprecated in Ruby 3.3

lib/highline/terminal.rb

@@ -112,7 +112,7 @@ def get_line_with_readline(question, highline)
     def readline_read(question, highline)
       # prep auto-completion
       unless question.selection.empty?
-        Readline.completion_proc = lambda do |str|
+        Reline.completion_proc = lambda do |str|
           question.selection.grep(/\A#{Regexp.escape(str)}/)
         end
       end
@@ -124,7 +124,7 @@ def readline_read(question, highline)
 
       raw_answer  = run_preserving_stty do
         prompt = highline.render_and_ident_statement(question)
-        Readline.readline(prompt, true)
+        Reline.readline(prompt, true)
       end
 
       $VERBOSE = old_verbose

test/acceptance/at_readline.rb

@@ -17,7 +17,7 @@
     "that begins with the 'l' letter in this particular case.\n\n" \
     "If I don't type any character but press <TAB> two times, I should\n" \
     "be able to see ALL available options.\n\n" \
-    "Please, play with Readline autocomplete for a while, pressing <ENTER>\n" \
+    "Please, play with Reline autocomplete for a while, pressing <ENTER>\n" \
     "to see that it really gets the selected answer.\n" \
     "When ready, just type 'exit' and the loop will finish.\n\n" \
     "Don't forget to answer 'y' (yes) or 'n' (no) to the question at the end."
@@ -33,5 +33,5 @@
     end
   end
 
-  t.question = "Did the Readline autocomplete work fine (y/n)? "
+  t.question = "Did the Reline autocomplete work fine (y/n)? "
 end