From 264995974500af39561f213131009bbfb0677290 Mon Sep 17 00:00:00 2001
From: kojix2 <2xijok@gmail.com>
Date: Thu, 3 Jun 2021 10:32:20 +0900
Subject: [PATCH] Set the Gem Ruby version to 2.6 or higher

---
 lib/youplot/backends/processing.rb | 2 +-
 lib/youplot/parser.rb              | 4 ++--
 test/youplot/iris_test.rb          | 2 +-
 youplot.gemspec                    | 2 +-
 4 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/lib/youplot/backends/processing.rb b/lib/youplot/backends/processing.rb
index d7bf909..58fa034 100644
--- a/lib/youplot/backends/processing.rb
+++ b/lib/youplot/backends/processing.rb
@@ -21,7 +21,7 @@ module YouPlot
           # compare values
           r = b[1] <=> a[1]
           # If the values are the same, compare by name
-          r = a[0] <=> b[0] if r == 0
+          r = a[0] <=> b[0] if r.zero?
           r
         end
 
diff --git a/lib/youplot/parser.rb b/lib/youplot/parser.rb
index 94519b3..13768f2 100644
--- a/lib/youplot/parser.rb
+++ b/lib/youplot/parser.rb
@@ -164,8 +164,8 @@ module YouPlot
     end
 
     def sub_parser_add_canvas
-      canvas_types = UnicodePlot::Canvas::CANVAS_CLASS_MAP.keys.join(", ")
-      sub_parser.on_head('--canvas STR', String, "type of canvas", "(#{canvas_types})") do |v|
+      canvas_types = UnicodePlot::Canvas::CANVAS_CLASS_MAP.keys.join(', ')
+      sub_parser.on_head('--canvas STR', String, 'type of canvas', "(#{canvas_types})") do |v|
         params.canvas = v.to_sym
       end
     end
diff --git a/test/youplot/iris_test.rb b/test/youplot/iris_test.rb
index bb9223c..4246d99 100644
--- a/test/youplot/iris_test.rb
+++ b/test/youplot/iris_test.rb
@@ -109,7 +109,7 @@ class YouPlotIRISTest < Test::Unit::TestCase
     assert_equal fixture('iris-boxplot.txt'), @stderr_file.read
   end
 
-  # Yeah, lineplot/lineplots don't make sense too. 
+  # Yeah, lineplot/lineplots don't make sense too.
   # Just checking the behavior.
 
   test :c do
diff --git a/youplot.gemspec b/youplot.gemspec
index 5ad789a..a0872ba 100644
--- a/youplot.gemspec
+++ b/youplot.gemspec
@@ -12,7 +12,7 @@ Gem::Specification.new do |spec|
   spec.description   = 'A command line tool for Unicode Plotting'
   spec.homepage      = 'https://github.com/kojix2/youplot'
   spec.license       = 'MIT'
-  spec.required_ruby_version = Gem::Requirement.new('>= 2.4.0')
+  spec.required_ruby_version = Gem::Requirement.new('>= 2.6.0')
 
   spec.files         = Dir['*.{md,txt}', '{lib,exe}/**/*']
   spec.bindir        = 'exe'