Module: TTM::Show

Defined in:
lib/tatum.rb

Overview

Builds the string representation of the given object. See TTM.show for details.

Class Method Summary collapse

Class Method Details

.puts(obj, opts = {}) ⇒ Object

Determines the class of the given object and outputs a string representation of it using TTM.puts.



733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
 
# File 'lib/tatum.rb', line 733

def self.puts(obj, opts={})
	# nil
	if obj.nil?
		TTM.puts '[nil]'
	
	# hash
	elsif obj.is_a?(Hash)
		show_hash obj, opts
	
	# array
	elsif obj.is_a?(Array)
		show_array obj, opts
		
	# else just output
	else
		TTM.puts obj.to_s
	end
	
	# always return nil
	return nil
end

.show_array(myarr, opts) ⇒ Object

Outputs a string representation of each object in the array. Puts the output inside horizontal rules.



766
767
768
769
770
771
772
773
774
775
776
777
778
779
 
# File 'lib/tatum.rb', line 766

def self.show_array(myarr, opts)
	# if empty
	if myarr.empty?
		TTM.puts '[empty array]'
		
		# else there's stuff in the array
	else
		TTM.hr do
			myarr.each do |el|
				TTM.puts el
			end
		end
	end
end

.show_hash(hsh, opts) ⇒ Object

Outputs a hash as a text table.



791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
 
# File 'lib/tatum.rb', line 791

def self.show_hash(hsh, opts)
	opts = {'sort'=>true}.merge(opts)
	
	# if empty, output string indicating so
	if hsh.empty?
		TTM.puts '[empty hash]'
		
	# else display hash as a table
	else
		require 'text-table'
		
		# table object
		table = Text::Table.new
		
		# get array of keys
		keys = hsh.keys
		
		# sort if necessary
		if opts['sort']
			keys.sort!{|a,b| a.to_s.downcase <=> b.to_s.downcase}
		end
		
		# loop through keys
		keys.each do |k|
			# get value
			val = hsh[k]
			
			# if val is a hash, show a list of hash keys
			if val.is_a?(Hash)
				val = val.keys.sort{|a,b| a.to_s <=> b.to_s}
				val = val.map{|vk| vk.to_s}
				val = '{' + val.join(', ') + '}'
				
			# if array, join elements
			elsif val.is_a?(Array)
				val = val.map{|vk| vk.to_s}
				val = '[' + val.join(' | ') + ']'
				
			# trim value display
			else
				# val = val.to_s
				val = TTM.object_display_string(val)
				
				if val.length > 120
					val = val[0..117] + '...'
				end
			end
			
			# add to table
			table.rows.push [k, val]
		end
		
		# output
		TTM.puts table.to_s
	end
end