Rename params -> plot_params

lib/youplot/command.rb

@@ -15,7 +15,6 @@ module YouPlot
 
     def initialize(argv = ARGV)
       @argv    = argv
-      @params  = Params.new
       @parser  = Parser.new
       @backend = YouPlot::Backends::UnicodePlotBackend
     end
@@ -23,7 +22,7 @@ module YouPlot
     def run
       parser.parse_options(@argv)
       command   = parser.command
-      params    = parser.params
+      @params   = parser.params
       delimiter = parser.delimiter
       transpose = parser.transpose
       headers   = parser.headers

lib/youplot/command/parser.rb

@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 require 'optparse'
-require_relative 'params'
+require_relative 'plot_params'
 
 module YouPlot
   class Command
@@ -12,7 +12,7 @@ module YouPlot
 
       def initialize
         @command     = nil
-        @params      = Params.new
+        @params      = PlotParams.new
 
         @delimiter   = "\t"
         @transpose   = false

lib/youplot/command/plot_params.rb

@@ -7,7 +7,7 @@ module YouPlot
     # * Here, I use Struct for 2 safety reason.
     # * The keys are static in Struct.
     # * Struct does not conflict with keyword arguments. Hash dose.
-    Params = Struct.new(
+    PlotParams = Struct.new(
       # Sort me!
       :title,
       :width,