Class: Output

Inherits:
Object
  • Object
show all
Defined in:
lib/output.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Output

Returns a new instance of Output.



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# File 'lib/output.rb', line 15

def initialize
  @indent_character = ' '
  @indent_step = 4
  @tab = "\t"
  @tab_replaces_count = 0
  @last_indent = 0
end

Instance Attribute Details

#indent_character ⇒ Object

For indentation.



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# File 'lib/output.rb', line 11

def indent_character
  @indent_character
end

#indent_step ⇒ Object

For indentation.



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# File 'lib/output.rb', line 11

def indent_step
  @indent_step
end

#last_indent ⇒ Object

Returns the value of attribute last_indent.



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# File 'lib/output.rb', line 13

def last_indent
  @last_indent
end

#tab ⇒ Object

Returns the value of attribute tab.



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# File 'lib/output.rb', line 12

def tab
  @tab
end

#tab_replaces_count ⇒ Object

Returns the value of attribute tab_replaces_count.



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# File 'lib/output.rb', line 12

def tab_replaces_count
  @tab_replaces_count
end

Instance Method Details

#join(blocks, separator = "\n") ⇒ Object 



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# File 'lib/output.rb', line 23

def join(blocks, separator = "\n")
  indented = []
  blocks.flatten!
  indent = 0
  blocks.each do |block|
    if block.nil?
      indent = 0
    elsif block.is_a?(Integer)
      indent += block
    elsif block.is_a?(TrueClass)
      indent += @indent_step
    elsif block.is_a?(FalseClass)
      indent -= @indent_step
    else
      block = block.to_s unless block.is_a?(String)
      if indent.zero?
        indented.push(block)
        next
      end
      if 0 < @tab_replaces_count
        tabs = @tab * (indent / @tab_replaces_count)
        chars = @indent_character * (indent % @tab_replaces_count)
      else
        tabs = ''
        chars = @indent_character * indent
      end
      lines = block.lines(chomp: true)
      lines.each do |line|
        indented.push("#{tabs}#{chars}#{line}")
      end
    end
  end
  @last_indent = indent
  indented.join(separator)
end