Simple script to scrape for one line ASCII-Art and filter them by character-type and length. It than constructs a shell-script array and ouputs it to the file argument.

1lineart_scraper.rb

#!/usr/bin/env ruby

# Simple script to scrape for one line ASCII-Art and filter them by character-type and length.
# It than constructs a shell-script array and ouputs it to the file argument.
#
# Author: Henning Brandt
# Created: 04.01.15
# Licence: MIT
#

require "nokogiri"
require "open-uri"

file_path = ARGV[0]
if file_path.nil? abort("Filepath argument missing!")

URL = "http://1lineart.kulaone.com/home?page="

ascii_art = []
(0..12).each do |i|
	doc = Nokogiri::HTML(open(URL + i.to_s))
	doc.css(".views-field-field-art-line-value").each do |elem|
		ascii_art << elem.content.strip
	end
end

file = File.new(file_path, "w")

# Some ASCIIs on the site are only names of people and such, so I reject all that only consists of alphanumericals
# Because I use the strings as part of my custom zsh prompt, I reject all strings greater than ten characters.
ascii_art.reject! { |elem| elem.length > 10 || elem =~ /^[A-Za-z0-9]*$/ }.each_with_index do |ascii, index|
	# escape single quotes, because I want to use the output in a shell script
	ascii = ascii.gsub(/'/){ %q(\047) }
	# Construct shell array
	file.puts("ascii[#{(index + 1).to_s}]='" + ascii + "';\n")
end

file.close