v0.2.3

lib/uplot/command.rb

@@ -1,44 +1,18 @@
 require 'optparse'
 require_relative 'preprocessing'
+require_relative 'command/params'
 
 module Uplot
   Data = Struct.new(:headers, :series)
 
   class Command
-    Params = Struct.new(
+    attr_accessor :params, :command
-      # Sort me!
+    attr_reader :main_parser, :sub_parsers, :raw_inputs, :data, :fmt
-      :title,
-      :width,
-      :height,
-      :border,
-      :margin,
-      :padding,
-      :color,
-      :xlabel,
-      :ylabel,
-      :labels,
-      :symbol,
-      :xscale,
-      :nbins,
-      :closed,
-      :canvas,
-      :xlim,
-      :ylim,
-      :grid,
-      :name
-    ) do
-      def to_hc
-        to_h.compact
-      end
-    end
-
-    attr_accessor :params, :plot_type
-    attr_reader :raw_inputs, :data, :fmt
 
     def initialize
       @params = Params.new
 
-      @plot_type = nil
+      @command    = nil
       @headers    = nil
       @delimiter  = "\t"
       @transpose  = false
@@ -50,7 +24,7 @@ module Uplot
       @debug      = false
     end
 
-    def create_parser
+    def create_default_parser
       OptionParser.new do |opt|
         opt.program_name = 'uplot'
         opt.version = Uplot::VERSION
@@ -102,12 +76,12 @@ module Uplot
            .on('--debug', TrueClass) do |v|
           @debug = v
         end
+        yield opt if block_given?
       end
     end
 
-    def parse_options(argv = ARGV)
+    def create_sub_parsers
-      main_parser = create_parser
+      parsers = Hash.new { |h, k| h[k] = create_default_parser }
-      parsers = Hash.new { |h, k| h[k] = create_parser }
 
       parsers[:barplot] = \
         parsers[:bar]
@@ -193,9 +167,18 @@ module Uplot
           params.xlim = get_lim(v)
         end
 
+      parsers[:colors]
+        .on('-n', '--names', TrueClass) do |v|
+          @color_names = v
+        end
+
       # Preventing the generation of new sub-commands
       parsers.default = nil
+      parsers
+    end
 
+    def create_main_parser
+      create_default_parser do |main_parser|
         # Usage and help messages
         main_parser.banner = \
           <<~MSG
@@ -204,10 +187,16 @@ module Uplot
 
             Usage:   uplot <command> [options]
 
-          Command: #{parsers.keys.join(' ')}
+            Command: #{sub_parsers.keys.join(' ')}
 
             Options:
           MSG
+      end
+    end
+
+    def parse_options(argv = ARGV)
+      @sub_parsers = create_sub_parsers
+      @main_parser = create_main_parser
 
       begin
         main_parser.order!(argv)
@@ -216,17 +205,17 @@ module Uplot
         exit 1
       end
 
-      @plot_type = argv.shift&.to_sym
+      @command = argv.shift&.to_sym
 
-      unless parsers.has_key?(plot_type)
+      unless sub_parsers.has_key?(command)
-        if plot_type.nil?
+        if command.nil?
           warn main_parser.help
         else
-          warn "uplot: unrecognized command '#{plot_type}'"
+          warn "uplot: unrecognized command '#{command}'"
         end
         exit 1
       end
-      parser = parsers[plot_type]
+      parser = sub_parsers[command]
 
       begin
         parser.parse!(argv) unless argv.empty?
@@ -242,13 +231,19 @@ module Uplot
 
     def run
       parse_options
+
+      if command == :colors
+        Plot.colors
+        exit
+      end
+
       # Sometimes the input file does not end with a newline code.
       while input = Kernel.gets(nil)
         input.freeze
         @raw_inputs << input
         @data = Preprocessing.input(input, @delimiter, @headers, @transpose)
         pp @data if @debug
-        case plot_type
+        case command
         when :bar, :barplot
           Plot.barplot(data, params, @count)
         when :count, :c
@@ -266,7 +261,7 @@ module Uplot
         when :box, :boxplot
           Plot.boxplot(data, params)
         else
-          raise "unrecognized plot_type: #{plot_type}"
+          raise "unrecognized plot_type: #{command}"
         end.render($stderr)
 
         print input if @output

lib/uplot/command/params.rb

@@ -0,0 +1,30 @@
+module Uplot
+  class Command
+    Params = Struct.new(
+      # Sort me!
+      :title,
+      :width,
+      :height,
+      :border,
+      :margin,
+      :padding,
+      :color,
+      :xlabel,
+      :ylabel,
+      :labels,
+      :symbol,
+      :xscale,
+      :nbins,
+      :closed,
+      :canvas,
+      :xlim,
+      :ylim,
+      :grid,
+      :name
+    ) do
+      def to_hc
+        to_h.compact
+      end
+    end
+  end
+end

lib/uplot/plot.rb

@@ -123,6 +123,18 @@ module Uplot
       UnicodePlot.boxplot(headers, series, **params.to_hc)
     end
 
+    def colors
+      UnicodePlot::StyledPrinter::TEXT_COLORS.each do |k, v|
+        print v
+        print k
+        print "\t"
+        print '  ●'
+        print "\033[0m"
+        print "\t"
+      end
+      puts
+    end
+
     def check_series_size(data, fmt)
       series = data.series
       if series.size == 1

lib/uplot/version.rb

@@ -1,3 +1,3 @@
 module Uplot
-  VERSION = '0.2.2'.freeze
+  VERSION = '0.2.3'.freeze
 end