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-rw-r--r--ruby/step3_env.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/ruby/step3_env.rb b/ruby/step3_env.rb
index 88811f0..17126c5 100644
--- a/ruby/step3_env.rb
+++ b/ruby/step3_env.rb
@@ -67,6 +67,7 @@ repl_env.set(:-, lambda {|a,b| a - b})
repl_env.set(:*, lambda {|a,b| a * b})
repl_env.set(:/, lambda {|a,b| a / b})
+# repl loop
while line = _readline("user> ")
begin
puts REP[line]