Class: Array

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

Instance Method Summary collapse

Instance Method Details

#to_box(safe: true) ⇒ Object

Make a nice box around any number of string(able) items. String.to_box is also available. Truncates at 80 characters.

puts ["test", :info].to_box
+------+------+
| test | info |
+------+------+



10
11
12
13
14
15
16
 
# File 'lib/duffy/array.rb', line 10

def to_box(safe: true)
  return nil if self.empty?
  b = safe ? "+-++ | +++" : "╔─╦╗ ║ ╚╩╝"
  out  = (b[0] + self.map{ |x| b[1] * (x.to_s.gsub(/\e\[([;\d]+)?m/, '').length + 2) }.join(b[2]) + b[3])[0,80] + "\n"
  out << (b[5,2] + self.join(b[4,3]) + b[4,2])[0,80] + "\n"
  out << (b[7] + self.map{ |x| b[1] * (x.to_s.gsub(/\e\[([;\d]+)?m/, '').length + 2) }.join(b[8]) + b[9])[0,80]
end

#to_markdown ⇒ Object

Create a markdown table from a 2D Array

puts [[“Car”, “Boat”, Date.today, 5],[“Horse”, “Car”, nil, 0]].to_markdown String | String | Date | Integer ——-|——–|————|——— Car | Boat | 2022-01-12 | 5 Horse | Car | | 0



28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
 
# File 'lib/duffy/array.rb', line 28

def to_markdown
  raise "expected 2D array" unless self.first.is_a?(Array)

  # Find max widths of data/headers: eg => [10, 25, 18, 21, 6]
  widths = self.transpose.map{ |col| ([col.first.class.to_s.length] + col.map{ |i| i.to_s.length }).max }

  # Use the class of each cell in the first row for the table headers.
  out = self.first.map.with_index{|c,i| c.class.to_s.ljust(widths[i])}.join(" | ") + "\n"
  out << out.gsub(/[^|]/, "-") + "\n"

  # Left justify each cell
  self.each do |row|
    out << row.map(&:to_s).map.with_index{|c,i| c.ljust(widths[i])}.join(" | ") + "\n"
  end
  out

rescue => e
  warn "Unable to generate table: #{e}"
  nil
end