switch to reline for width calculations (#60)

* switch to reline for width calculations

* add explicit reline dependency (for ruby 3.5+ where it's no longer in stdlib)

* add an emoji-based table test

Author: geemus

formatador.gemspec

@@ -49,6 +49,7 @@ Gem::Specification.new do |s|
   ## List your runtime dependencies here. Runtime dependencies are those
   ## that are needed for an end user to actually USE your code.
   # s.add_dependency('DEPNAME', [">= 1.1.0", "< 2.0.0"])
+  s.add_dependency('reline')
 
   ## List your development dependencies here. Development dependencies are
   ## those that are only needed during development

lib/formatador.rb

@@ -1,6 +1,8 @@
 require File.join(File.dirname(__FILE__), 'formatador', 'table')
 require File.join(File.dirname(__FILE__), 'formatador', 'progressbar')
 
+require 'reline' # for table char width calculations
+
 class Formatador
 
   VERSION = '1.1.1'

lib/formatador/table.rb

@@ -80,11 +80,7 @@ def display_compact_table(hashes, keys = nil, **options, &block)
   private
 
   def length(value)
-    if Module.const_defined?(:Unicode) && Unicode.respond_to?(:width)
-      Unicode.width(value.to_s.gsub(PARSE_REGEX, ''))
-    else
-      value.to_s.gsub(PARSE_REGEX, '').chars.reduce(0) { |sum, char| sum += char.bytesize > 1 ? 2 : 1 }
-    end
+    Reline::Unicode.calculate_width(value.to_s.gsub(PARSE_REGEX, ''))
 
   rescue NotImplementedError
     value.to_s.gsub(PARSE_REGEX, '').chars.reduce(0) { |sum, char| sum += char.bytesize > 1 ? 2 : 1 }

tests/table_tests.rb

@@ -153,4 +153,22 @@
     end
   end
 
+output = <<-OUTPUT
+    +----+
+    | [bold]a[/]  |
+    +----+
+    | 1  |
+    +----+
+    | 🤷 |
+    +----+
+OUTPUT
+  output = Formatador.parse(output)
+
+  tests("#display_table([{:a => 1}, {:a => '🤷'}])").returns(output) do
+    capture_stdout do
+      Formatador.display_table([{:a => 1}, {:a => '🤷'}])
+    end
+  end
+
+
 end