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

3 files changed, 15 insertions, 0 deletions

diff --git a/lib/oxidized/core.rb b/lib/oxidized/core.rb
index 3c728b6..b4f5612 100644
--- a/lib/oxidized/core.rb
+++ b/lib/oxidized/core.rb
@@ -1,5 +1,6 @@
 module Oxidized
   require 'oxidized/log'
+  require 'oxidized/string'
   require 'oxidized/config'
   require 'oxidized/worker'
   require 'oxidized/nodes'
diff --git a/lib/oxidized/model/model.rb b/lib/oxidized/model/model.rb
index ca08332..dc7d18a 100644
--- a/lib/oxidized/model/model.rb
+++ b/lib/oxidized/model/model.rb
@@ -76,6 +76,7 @@ module Oxidized
     def cmd string, &block
       out = @input.cmd string
       return false unless out
+      out = Oxidized::String out
       self.class.cmds[:all].each do |all_block|
         out = instance_exec out, string, &all_block
       end
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