1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
|
require_relative "column_printer"
require_relative "terminal"
class Thor
module Shell
class TablePrinter < ColumnPrinter
BORDER_SEPARATOR = :separator
def initialize(stdout, options = {})
super
@formats = []
@maximas = []
@colwidth = options[:colwidth]
@truncate = options[:truncate] == true ? Terminal.terminal_width : options[:truncate]
@padding = 1
end
def print(array)
return if array.empty?
prepare(array)
print_border_separator if options[:borders]
array.each do |row|
if options[:borders] && row == BORDER_SEPARATOR
print_border_separator
next
end
sentence = "".dup
row.each_with_index do |column, index|
sentence << format_cell(column, row.size, index)
end
sentence = truncate(sentence)
sentence << "|" if options[:borders]
stdout.puts indentation + sentence
end
print_border_separator if options[:borders]
end
private
def prepare(array)
array = array.reject{|row| row == BORDER_SEPARATOR }
@formats << "%-#{@colwidth + 2}s".dup if @colwidth
start = @colwidth ? 1 : 0
colcount = array.max { |a, b| a.size <=> b.size }.size
start.upto(colcount - 1) do |index|
maxima = array.map { |row| row[index] ? row[index].to_s.size : 0 }.max
@maximas << maxima
@formats << if options[:borders]
"%-#{maxima}s".dup
elsif index == colcount - 1
# Don't output 2 trailing spaces when printing the last column
"%-s".dup
else
"%-#{maxima + 2}s".dup
end
end
@formats << "%s"
end
def format_cell(column, row_size, index)
maxima = @maximas[index]
f = if column.is_a?(Numeric)
if options[:borders]
# With borders we handle padding separately
"%#{maxima}s"
elsif index == row_size - 1
# Don't output 2 trailing spaces when printing the last column
"%#{maxima}s"
else
"%#{maxima}s "
end
else
@formats[index]
end
cell = "".dup
cell << "|" + " " * @padding if options[:borders]
cell << f % column.to_s
cell << " " * @padding if options[:borders]
cell
end
def print_border_separator
separator = @maximas.map do |maxima|
"+" + "-" * (maxima + 2 * @padding)
end
stdout.puts indentation + separator.join + "+"
end
def truncate(string)
return string unless @truncate
chars = string.chars.to_a
if chars.length <= @truncate
chars.join
else
chars[0, @truncate - 3 - @indent].join + "..."
end
end
def indentation
" " * @indent
end
end
end
end
|
