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Colors.rb – Functional programming in Ruby example
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#!/usr/bin/env ruby | |
require 'paleta' | |
to_paleta = ->(color) { Paleta::Color.new(:hex, color) rescue nil } | |
to_div = ->(str) { | |
"<div style='font-family: sans-serif; width: 5em; height: 3em; | |
line-height: 3em; display: inline-block; text-align: center; | |
margin: 0.25em; border-radius: 0.25em; padding: 1em; | |
background: ##{str}'> | |
##{str} | |
</div>" | |
} | |
File.open('colors.html', 'w') do |file| | |
file.puts( | |
ARGF | |
.map(&:chomp) | |
.map(& to_paleta) | |
.compact | |
.sort_by(&:hue) | |
.map(&:hex) | |
.uniq | |
.map(& to_div) | |
) | |
end | |
`open colors.html` |
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