3

我正在寻找用 ruby​​ 打印出一个 CSV 文件，但我想让它格式化。有没有办法在层次结构意义上格式化数据？这是我需要完成的清单的一小部分：

,"11: Agriculture, Forestry, Fishing and Hunting",,
,,"111: Crop Production",
,,,"111110: Soybean Farming"
,,,"111120: Oilseed (except Soybean) Farming"
,,,"111130: Dry Pea and Bean Farming"
,,,"111140: Wheat Farming"
,,"112: Animal Production",
,,,"112111: Beef Cattle Ranching and Farming"
,,,"112112: Cattle Feedlots"
,,,"112120: Dairy Cattle and Milk Production"
,,,"112130: Dual-Purpose Cattle Ranching and Farming"

我的代码是：

require 'csv'

col_data = [] 
CSV.foreach("primary_NAICS_code.txt") {|row| col_data << row} 
puts col_data

这只是打印出所有内容。它是一个数组吗？就像是：

CSV.foreach do |row|
  row.each do |line|
    puts line
  end
end

任何帮助都会为我指明正确的方向。

我想将信息格式化为如下所示：

|_ <~~ row 1 column 1
| |__<~ row 1 column 2
| |  |__<~row 2 column 2 
| |  |  |__  
| |  |  |  |__  etc... 
| |  |  |  |  |__
4

2 回答 2

4

由于您的数据已经缩进，您只需对其进行转换/格式化。像这样的东西应该工作：

col_data.each do |row|
  indentation, (text,*) = row.slice_before(String).to_a
  puts indentation.fill("|").join(" ") + "_ " + text
end

输出：

|_ 11: Agriculture, Forestry, Fishing and Hunting
| |_ 111: Crop Production
| | |_ 111110: Soybean Farming
| | |_ 111120: Oilseed (except Soybean) Farming
| | |_ 111130: Dry Pea and Bean Farming
| | |_ 111140: Wheat Farming
| |_ 112: Animal Production
| | |_ 112111: Beef Cattle Ranching and Farming
| | |_ 112112: Cattle Feedlots
| | |_ 112120: Dairy Cattle and Milk Production
| | |_ 112130: Dual-Purpose Cattle Ranching and Farming
于 2013-10-10T14:28:19.290 回答
3

将的格式col_data是

[[nil,"11: Agriculture, Forestry, Fishing and Hunting",nil,nil], [nil,nil,"111: Crop Production",nil],[nil,nil,nil,"111110: Soybean Farming"], ...]

所以如果你想做这样的结构，我建议迭代数组，然后迭代值，当数据为nil时，再做一个间距。

col_data.map! do |row|
  row.map do |data|
    data.nil? ? "   " : data
  end.join('')
end
puts col_data.join("\n")

当然，你可以用其他方式做间距：）

于 2013-10-10T14:23:55.117 回答