Padding printed output of tabular data
No one has mentioned the "coolest" / most compact way -- using the % operator -- for example: "%10s %10s" % [1, 2]. Here is some code:
xs = [ ["This code", "is", "indeed"], ["very", "compact", "and"], ["I hope you will", "find", "it helpful!"],]m = xs.map { |_| _.length }xs.each { |_| _.each_with_index { |e, i| s = e.size; m[i] = s if s > m[i] } }xs.each { |x| puts m.map { |_| "%#{_}s" }.join(" " * 5) % x }Gives:
This code is indeed very compact andI hope you will find it helpful!
Here is the code made more readable:
max_lengths = xs.map { |_| _.length }xs.each do |x| x.each_with_index do |e, i| s = e.size max_lengths[i] = s if s > max_lengths[i] endendxs.each do |x| format = max_lengths.map { |_| "%#{_}s" }.join(" " * 5) puts format % xend