keithrbennett

#!/usr/bin/env ruby

# Author: @keithrbennett (Github)

# Illustrates how to respond to Unix signals in a Ruby program, using SIGUSR1 and SIGUSR2
# for user-defined signals, and SIGINT for trapping Ctrl-C.

require 'awesome_print'
require 'json'
require 'yaml'

keithrbennett

#!/usr/bin/env ruby

require 'nokogiri'

def process_example(message, xml_text, use_noblanks_option)
  puts message
  puts "XML text: #{xml_text.inspect}"
  doc = Nokogiri::XML(xml_text) { |config| use_noblanks_option ? config.noblanks : config }
  puts 'Resulting XML document:'
  puts doc.inspect; puts; puts

keithrbennett

#!/usr/bin/env ruby


REPO_URLS = %w{
  https://github.com/rubyforgood/casa
  https://github.com/rubyforgood/cep-backend
  https://github.com/rubyforgood/cep-ui
  https://github.com/rubyforgood/circulate
  https://github.com/rubyforgood/human-essentials
  https://github.com/rubyforgood/shelter-assist

keithrbennett

#!/usr/bin/env ruby

module M
  class << self
    attr_accessor :foo
  end
end

class C1
  def call

keithrbennett

#!/usr/bin/env ruby

# Run in directory containing `compar.c`, e.g. from https://github.com/ruby/ruby/blob/master/compar.c.

require 'etc'

WORDS = Ractor.make_shareable File.readlines('/usr/share/dict/words').map(&:chomp).map(&:downcase).sort
TRY_COUNT = Etc.nprocessors

puts "Measuring first sequentially on main ractor and then with #{TRY_COUNT} ractors:\n\n"

keithrbennett

#!/usr/bin/env ruby

# strip-zero-width-spaces.rb
#
# Removes Unicode "\u200B" zero width spaces; useful for copying source code from O'Reilly learning books
#
# Usage:
#
# strip-zero-width-spaces.rb < original_file > new_stripped_file

keithrbennett

#!/usr/bin/env ruby

def bsearch(array, search_value)

  lower_bound = 0
  upper_bound = array.length - 1
  n = 0

  while lower_bound < upper_bound
    n += 1

keithrbennett

#!/usr/bin/env ruby

# --------------------------------------------------------------------------------
# test_iteration_constructs.rb
#
# Illustrates differences in behavior of some iteration constructs.
# @keithrbennett, 2021-02-01
#
# Output is:
# 

keithrbennett

#!/usr/bin/env ruby

# git-project-url
#
# Outputs to stdout the project URL corresponding to a git remote URL.
#
# Example:
#
# (`open` is for Mac, use `xdg-open` on Linux, `start` on Windows)
# open $(git-project-url) # Opens 'origin' project page ('origin' is default)

keithrbennett

#!/usr/bin/env ruby

require 'amazing_print'
require 'etc'
require 'set'
require 'shellwords'
require 'yaml'

raise "This script requires Ruby version 3 or later." unless RUBY_VERSION.split('.').first.to_i >= 3