lib/rubyc/cli.rb in rubyc-0.1.2 vs lib/rubyc/cli.rb in rubyc-0.1.3

@@ -90,9 +90,19 @@
     desc "uniq", "Enumerable#uniq"
     def uniq
       puts $stdin.to_a.uniq
     end
 
+    desc "uniq_by BLOCK", "TODO"
+    def uniq_by(code = nil)
+      code ||= "line"
+      proc = eval("Proc.new{|line| l = line; #{code}}")
+      counts = $stdin.uniq_by do |line|
+        proc.call(line.chomp)
+      end
+      puts counts
+    end
+
     desc "compact", "Remove empty lines"
     def compact
       $stdin.each{ |line| puts line if line.chomp! != ""}
     end