v0.2.7

Uplot should expect cases where data takes a long time to reach the standard input.
This mechanism is not appropriate.

This reverts commit c40c59a21d.

README.md

@@ -9,8 +9,6 @@ Create ASCII charts on the terminal with data from standard streams in the pipel
 
 :bar_chart: Powered by [UnicodePlot](https://github.com/red-data-tools/unicode_plot.rb)
 
-:construction: Under development! :construction:
-
 ## Installation
 
 ```
@@ -26,22 +24,57 @@ ruby -r numo/narray -e "puts Numo::DFloat.new(1000).rand_norm.to_a" \
   | uplot hist --nbins 15
 ```
 
-<img src="https://i.imgur.com/wpsoGJq.png" width="75%" height="75%"></img>
+<img src="https://i.imgur.com/wpsoGJq.png" width="75%" height="75%">
+
+```sh
+echo "from numpy import random;" \
+     "n = random.randn(10000);"  \
+     "print('\n'.join(str(i) for i in n))" \
+| python \
+| uplot hist --nbins 20
+```
+
+<img src="https://i.imgur.com/97R2MQx.png" width="75%" height="75%">
 
 **scatter**
 
 ```sh
-wget https://raw.githubusercontent.com/uiuc-cse/data-fa14/gh-pages/data/iris.csv -qO - \
+curl -s https://raw.githubusercontent.com/uiuc-cse/data-fa14/gh-pages/data/iris.csv \
- | cut -f1-4 -d, \
+| cut -f1-4 -d, \
- | uplot scatter -H -d, -t IRIS -m 10
+| uplot scatter -H -d, -t IRIS
 ```
 
+<img src="https://i.imgur.com/STX7bFT.png" width="75%" height="75%">
+
+**line**
+
+```sh
+curl -s https://www.mhlw.go.jp/content/pcr_positive_daily.csv \
+| cut -f2 -d, \
+| uplot line -w 50 -h 15 -t 'PCR positive tests' --xlabel Date --ylabel number
+```
+
+<img src="https://i.imgur.com/PVl5dsa.png" width="75%" height="75%">
+
+**box**
+
+```sh
+curl -s https://raw.githubusercontent.com/uiuc-cse/data-fa14/gh-pages/data/iris.csv \
+| cut -f1-4 -d, \
+| uplot box -H -d, -t IRIS
+```
+
+<img src="https://i.imgur.com/sNI4SmN.png" width="75%" height="75%">
+
+
 ## Development
 
+Let's keep it simple.
+
 ## Contributing
 
 Bug reports and pull requests are welcome on GitHub at [https://github.com/kojix2/uplot](https://github.com/kojix2/uplot).
 
 ## License
 
-The gem is available as open source under the terms of the [MIT License](https://opensource.org/licenses/MIT).
+[MIT License](https://opensource.org/licenses/MIT).

lib/uplot/command/parser.rb

@@ -10,22 +10,26 @@ module Uplot
                   :delimiter, :transpose, :headers, :pass, :output, :fmt, :debug
 
       def initialize
-        @command = nil
+        @command   = nil
-        @params = Params.new
+        @params    = Params.new
 
-        @delimiter  = "\t"
+        @delimiter = "\t"
-        @transpose  = false
+        @transpose = false
-        @headers    = nil
+        @headers   = nil
-        @pass       = false
+        @pass      = false
-        @output     = $stderr
+        @output    = $stderr
-        @fmt        = 'xyy'
+        @fmt       = 'xyy'
-        @debug      = false
+        @debug     = false
       end
 
       def create_default_parser
         OptionParser.new do |opt|
-          opt.program_name = 'uplot'
+          opt.program_name  = 'uplot'
-          opt.version = Uplot::VERSION
+          opt.version       = Uplot::VERSION
+          opt.summary_width = 24
+          opt.on_tail('') # Add a blank line at the end
+          opt.separator('')
+          opt.on('Options:')
           opt.on('-O', '--pass [VAL]', 'file to output standard input data to [stdout]',
                  'for inserting uplot in the middle of Unix pipes') do |v|
             @pass = v || $stdout
@@ -87,22 +91,22 @@ module Uplot
           # Usage and help messages
           main_parser.banner = \
             <<~MSG
+              
               Program: uplot (Tools for plotting on the terminal)
               Version: #{Uplot::VERSION} (using UnicodePlot #{UnicodePlot::VERSION})
-              Author:  kojix2 <2xijok@gmail.com>
               Source:  https://github.com/kojix2/uplot
 
               Usage:   uplot <command> [options]
 
-              Command: barplot    bar
+              Commands:
-                       histogram  hist
+                  barplot    bar
-                       lineplot   line
+                  histogram  hist
-                       scatter    s
+                  lineplot   line
-                       density    d
+                  lineplots  lines
-                       boxplot    box
+                  scatter    s
-                       colors
+                  density    d
-
+                  boxplot    box
-              Options:
+                  colors
             MSG
         end
       end
@@ -110,9 +114,10 @@ module Uplot
       def sub_parser
         @sub_parser ||= create_default_parser do |parser|
           parser.banner = <<~MSG
+
             Usage: uplot #{command} [options]
 
-            Options:
+            Options for #{command}:
           MSG
 
           case command
@@ -121,80 +126,80 @@ module Uplot
             exit 1
 
           when :barplot, :bar
-            parser.on('--symbol VAL', String, 'character to be used to plot the bars') do |v|
+            parser.on_head('--symbol VAL', String, 'character to be used to plot the bars') do |v|
               params.symbol = v
             end
-            parser.on('--xscale VAL', String,  'axis scaling') do |v|
+            parser.on_head('--xscale VAL', String, 'axis scaling') do |v|
               params.xscale = v
             end
 
           when :count, :c
-            parser.on('--symbol VAL', String, 'character to be used to plot the bars') do |v|
+            parser.on_head('--symbol VAL', String, 'character to be used to plot the bars') do |v|
               params.symbol = v
             end
 
           when :histogram, :hist
-            parser.on('-n', '--nbins VAL', Numeric, 'approximate number of bins') do |v|
+            parser.on_head('-n', '--nbins VAL', Numeric, 'approximate number of bins') do |v|
               params.nbins = v
             end
-            parser.on('--closed VAL', String) do |v|
+            parser.on_head('--closed VAL', String) do |v|
               params.closed = v
             end
-            parser.on('--symbol VAL', String, 'character to be used to plot the bars') do |v|
+            parser.on_head('--symbol VAL', String, 'character to be used to plot the bars') do |v|
               params.symbol = v
             end
 
           when :lineplot, :line
-            parser.on('--canvas VAL', String, 'type of canvas') do |v|
+            parser.on_head('--canvas VAL', String, 'type of canvas') do |v|
               params.canvas = v
             end
-            parser.on('--xlim VAL', Array, 'plotting range for the x coordinate') do |v|
+            parser.on_head('--xlim VAL', Array, 'plotting range for the x coordinate') do |v|
               params.xlim = v.take(2)
             end
-            parser.on('--ylim VAL', Array, 'plotting range for the y coordinate') do |v|
+            parser.on_head('--ylim VAL', Array, 'plotting range for the y coordinate') do |v|
               params.ylim = v.take(2)
             end
 
           when :lineplots, :lines
-            parser.on('--canvas VAL', String) do |v|
+            parser.on_head('--canvas VAL', String) do |v|
               params.canvas = v
             end
-            parser.on('--xlim VAL', Array, 'plotting range for the x coordinate') do |v|
+            parser.on_head('--xlim VAL', Array, 'plotting range for the x coordinate') do |v|
               params.xlim = v.take(2)
             end
-            parser.on('--ylim VAL', Array, 'plotting range for the y coordinate') do |v|
+            parser.on_head('--ylim VAL', Array, 'plotting range for the y coordinate') do |v|
               params.ylim = v.take(2)
             end
 
           when :scatter, :s
-            parser.on('--canvas VAL', String) do |v|
+            parser.on_head('--canvas VAL', String) do |v|
               params.canvas = v
             end
-            parser.on('--xlim VAL', Array, 'plotting range for the x coordinate') do |v|
+            parser.on_head('--xlim VAL', Array, 'plotting range for the x coordinate') do |v|
               params.xlim = v.take(2)
             end
-            parser.on('--ylim VAL', Array, 'plotting range for the y coordinate') do |v|
+            parser.on_head('--ylim VAL', Array, 'plotting range for the y coordinate') do |v|
               params.ylim = v.take(2)
             end
 
           when :density, :d
-            parser.on('--grid', TrueClass) do |v|
+            parser.on_head('--grid', TrueClass) do |v|
               params.grid = v
             end
-            parser.on('--xlim VAL', Array, 'plotting range for the x coordinate') do |v|
+            parser.on_head('--xlim VAL', Array, 'plotting range for the x coordinate') do |v|
               params.xlim = v.take(2)
             end
-            parser.on('--ylim VAL', Array, 'plotting range for the y coordinate') do |v|
+            parser.on_head('--ylim VAL', Array, 'plotting range for the y coordinate') do |v|
               params.ylim = v.take(2)
             end
 
           when :boxplot, :box
-            parser.on('--xlim VAL', Array, 'plotting range for the x coordinate') do |v|
+            parser.on_head('--xlim VAL', Array, 'plotting range for the x coordinate') do |v|
               params.xlim = v.take(2)
             end
 
           when :colors
-            parser.on('-n', '--names', TrueClass) do |v|
+            parser.on_head('-n', '--names', TrueClass) do |v|
               @color_names = v
             end
 

lib/uplot/version.rb

@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module Uplot
-  VERSION = '0.2.6'
+  VERSION = '0.2.7'
 end