Use String subclass in model#cmd

Will allow convenience methods such as

cmd :all do |cfg|
  cfg.pop.shift
end

instead of:

cmd :all do |cfg|
  cfg.each_line.to_a[1..-2].join
end

And what ever convenience configs we come up with

1 files changed, 13 insertions, 0 deletions

diff --git a/lib/oxidized/string.rb b/lib/oxidized/string.rb
new file mode 100644
index 0000000..b334eaa
--- /dev/null
+++ b/lib/oxidized/string.rb
@@ -0,0 +1,13 @@
+module Oxidized
+  # Used in models, contains convenience methods
+  class String < String
+    # @return [Oxidized::String] copy of self with last line removed
+    def pop
+      Oxy::String.new each_line.to_a[0..-2].join
+    end
+    # @return [Oxidized::String] copy of self with first line removed
+    def shift
+      Oxy::String.new each_line.to_a[1..-1].join
+    end
+  end
+end