Class: TableFormatter

Inherits:
Object
  • Object
show all
Defined in:
lib/table-formatter.rb

Overview

file: table-formatter.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(opt = {}) ⇒ TableFormatter

Returns a new instance of TableFormatter.



9
10
11
12
13
14
15
16
 
# File 'lib/table-formatter.rb', line 9

def initialize(opt={})    
  o = {source: nil, labels: nil, border: true}.merge(opt)
  super()
  @source = o[:source]
  @labels = o[:labels]
  @border = o[:border]
  @maxwidth = 60
end

Instance Attribute Details

#border ⇒ Object

Returns the value of attribute border.



7
8
9
 
# File 'lib/table-formatter.rb', line 7

def border
  @border
end

#labels ⇒ Object

Returns the value of attribute labels.



7
8
9
 
# File 'lib/table-formatter.rb', line 7

def labels
  @labels
end

#source ⇒ Object

Returns the value of attribute source.



7
8
9
 
# File 'lib/table-formatter.rb', line 7

def source
  @source
end

Instance Method Details

#display(width = nil) ⇒ Object Also known as: to_s 



18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
 
# File 'lib/table-formatter.rb', line 18

def display(width=nil)
  
  #width ||= @maxwidth
  @width = width
  @maxwidth = width if width
  a = @source.map {|x| x.map.to_a}.to_a
  labels = @labels
  column_widths = fetch_column_widths(a)

  column_widths[-1] -= column_widths.inject(&:+) - width if width

  records = format_rows(a, column_widths)

  div =  (border == true ? '-' : ' ') * records[0].length + "\n"
  label_buffer = ''    
  label_buffer = format_cols(labels, column_widths) + "\n" + div if labels

  div + label_buffer + records.join("\n") + "\n" + div

end