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
|
module Roo
module Utils
extend self
LETTERS = ('A'..'Z').to_a
def split_coordinate(str)
@split_coordinate ||= {}
@split_coordinate[str] ||= begin
letter, number = split_coord(str)
x = letter_to_number(letter)
y = number
[y, x]
end
end
alias_method :ref_to_key, :split_coordinate
def split_coord(s)
if s =~ /([a-zA-Z]+)([0-9]+)/
letter = Regexp.last_match[1]
number = Regexp.last_match[2].to_i
else
fail ArgumentError
end
[letter, number]
end
# convert a number to something like 'AB' (1 => 'A', 2 => 'B', ...)
def number_to_letter(num)
result = ""
until num.zero?
num, index = (num - 1).divmod(26)
result.prepend(LETTERS[index])
end
result
end
def letter_to_number(letters)
@letter_to_number ||= {}
@letter_to_number[letters] ||= begin
result = 0
# :bytes method returns an enumerator in 1.9.3 and an array in 2.0+
letters.bytes.to_a.map{|b| b > 96 ? b - 96 : b - 64 }.reverse.each_with_index{ |num, i| result += num * 26 ** i }
result
end
end
# Compute upper bound for cells in a given cell range.
def num_cells_in_range(str)
cells = str.split(':')
return 1 if cells.count == 1
raise ArgumentError.new("invalid range string: #{str}. Supported range format 'A1:B2'") if cells.count != 2
x1, y1 = split_coordinate(cells[0])
x2, y2 = split_coordinate(cells[1])
(x2 - (x1 - 1)) * (y2 - (y1 - 1))
end
def load_xml(path)
::File.open(path, 'rb') do |file|
::Nokogiri::XML(file)
end
end
# Yield each element of a given type ('row', 'c', etc.) to caller
def each_element(path, elements)
Nokogiri::XML::Reader(::File.open(path, 'rb'), nil, nil, Nokogiri::XML::ParseOptions::NOBLANKS).each do |node|
next unless node.node_type == Nokogiri::XML::Reader::TYPE_ELEMENT && Array(elements).include?(node.name)
yield Nokogiri::XML(node.outer_xml).root if block_given?
end
end
end
end
|
