initial

Gemfile

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+# frozen_string_literal: true
+
+source "https://rubygems.org"
+
+git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }
+
+gem "nokogiri"
+gem "rainbow"

Gemfile.lock

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+GEM
+  remote: https://rubygems.org/
+  specs:
+    mini_portile2 (2.4.0)
+    nokogiri (1.10.1)
+      mini_portile2 (~> 2.4.0)
+    rainbow (3.0.0)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  nokogiri
+  rainbow
+
+BUNDLED WITH
+   1.16.2

bvg.rb

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+#!/usr/bin/env ruby
+
+require "open-uri"
+require "nokogiri"
+require "rainbow"
+
+Departure = Struct.new(:time, :line, :terminus) do
+  def self.from_row(row)
+    Departure.new(row[0].text.strip, row[1].text.strip.gsub(/\s+/, " "), row[2].text.strip)
+  end
+
+  def log
+    time_string = if time[-1] == "*" then Rainbow(time[0..4]).inverse else time end
+    line_string = {
+      'B' => Rainbow(line).magenta,
+      'R' => Rainbow(line).white,
+      'U' => Rainbow(line).blue,
+      'S' => Rainbow(line).green,
+      'T' => Rainbow(line).red,
+    }[line[0]] || line
+
+    printf("%s %-20s %s\n", time_string, line_string, terminus)
+  end
+end
+
+def request_url(input)
+  "http://mobil.bvg.de/Fahrinfo/bin/stboard.bin/dox?" + URI.encode_www_form(
+    "input" => URI.encode_www_form_component(input),
+    "start" => "yes",
+    "boardType" => "depRT",
+  )
+end
+
+url = request_url(ARGV[0])
+
+document = Nokogiri::HTML(open(url))
+
+title = document.xpath("//div[@id=\"ivu_overview_input\"]/strong")
+puts Rainbow(title.text).bright if title
+
+document.xpath("//span[@class=\"select\"]/a").each do |option|
+  station_name = option.text.strip
+  station_code = option.xpath("@href").text[/input=(\d+)/, 1]
+  print station_code, " ", Rainbow(station_name).yellow, "\n"
+end
+
+document.xpath("//table/tbody/tr").each do |row|
+  columns = row.xpath("td")
+  Departure.from_row(columns).log unless columns.length < 3
+end