From 41a9c8ec055bfa0090154a9dd85d4a35a0dce3d0 Mon Sep 17 00:00:00 2001
From: Gwenhael Le Moine <gwenhael.le.moine@gmail.com>
Date: Wed, 10 Nov 2021 16:44:29 +0100
Subject: [PATCH] "implement" 'history', 'version' & 'uname' at repl level

---
 repl.rb | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/repl.rb b/repl.rb
index f9b8636..6cb0938 100644
--- a/repl.rb
+++ b/repl.rb
@@ -19,12 +19,7 @@ module Rpn
 
     def run
       Readline.completion_proc = proc do |s|
-        directory_list = Dir.glob("#{s}*")
-        if directory_list.positive?
-          directory_list
-        else
-          Readline::HISTORY.grep(/^#{Regexp.escape(s)}/)
-        end
+        Readline::HISTORY.grep(/^#{Regexp.escape(s)}/)
       end
       Readline.completion_append_character = ' '
 
@@ -32,6 +27,10 @@ module Rpn
         input = Readline.readline( ' ', true )
         break if input.nil? || input == 'quit'
 
+        pp Readline::HISTORY if input == 'history'
+
+        input = '"rpn.rb version 0.0"' if %w[version uname].include?( input )
+
         # Remove blank lines from history
         Readline::HISTORY.pop if input.empty?