Module: ConsoleTextFormatter

Extended by:
ConsoleTextFormatter
Included in:
ConsoleTextFormatter
Defined in:
lib/console-text-formatter.rb,
lib/console-text-formatter/version.rb

Constant Summary collapse

VERSION = 
"0.0.2"

Class Method Summary collapse

Class Method Details

.build_row(items, pads) ⇒ Object 



33
34
35
36
37
38
39
40
 
# File 'lib/console-text-formatter.rb', line 33

def self.build_row(items, pads)
  output = ''
  items.each_with_index do |item, i|
    output << pad(item, pads[i]) << "|" 
  end
  output.chop!
  output << "\n"
end

.format(recs, fields) ⇒ Object 



6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
 
# File 'lib/console-text-formatter.rb', line 6

def self.format(recs, fields)
  fields_width = Array.new(fields.length)

  fields.each_index{|i| fields_width[i] = fields[i].to_s.length }

  recs.each do |rec|
    fields.each_index do |i|
      if (fields_width[i] < rec[fields[i]].to_s.length)
        fields_width[i] = rec[fields[i]].to_s.length
      end
    end
  end
  fields_width.each_index{|i| fields_width[i] += 2 }

  rec_width = fields_width.length - 1
  fields_width.each{|x| rec_width+=x }

  print_data(recs, rec_width, fields, fields_width)
end

.pad(str, len) ⇒ Object

print formatter



27
28
29
30
31
 
# File 'lib/console-text-formatter.rb', line 27

def self.pad(str, len)
  return "".ljust(len) if str.nil?
  #str = str.slice(0, len) # truncate long strings
  " "+str.ljust(len-1) # pad with whitespace
end

.print_data(recs, width, fields, field_width) ⇒ Object 



42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
 
# File 'lib/console-text-formatter.rb', line 42

def self.print_data (recs, width, fields, field_width)
  output = ''
  output = "".ljust(width,"=") << "\n" 
  output << build_row(fields, field_width)
  output << "".ljust(width,"-") << "\n" 

  # table data
  recs.each do |rec|
    output << build_row(fields.map { |r| rec[r].to_s }, field_width)
  end
  
  output << "".ljust(width,"=") << "\n" 

  print output
end