Active Support Mini Programs

paragraph_truncator_as.rb

require "active_support"
require "active_support/core_ext/string/filters.rb"
# Truncates a given +text+ after a given <tt>length</tt> if +text+ is longer than <tt>length</tt>:
#
# Example
#
#   'And they found that many people were sleeping better.'.truncate(25, omission: '... (continued)')
#   # => "And they f... (continued)"
puts "<inspirational paragraph prompt here>:"
words = gets.chomp

puts "How many characters should be in that lovely paragraph of yours?"
number = gets.to_i

puts "What would you like to see at the end of your truncated paragraph?"
puts "(Ex: Read More, See More, ..., etc.)"
end_of_paragraph = gets.chomp
 
puts words.truncate(number, omission: end_of_paragraph)

phone_number_formatter_as.rb

require "active_support"
require "active_support/core_ext/numeric/conversions.rb"

# Converts numbers into formatted strings.
#
#  Phone Numbers:
#  5551234.to_s(:phone)                                     # => 555-1234
#  1235551234.to_s(:phone)                                  # => 123-555-1234
#  1235551234.to_s(:phone, area_code: true)                 # => (123) 555-1234
#  1235551234.to_s(:phone, delimiter: ' ')                  # => 123 555 1234
#  1235551234.to_s(:phone, area_code: true, extension: 555) # => (123) 555-1234 x 555
#  1235551234.to_s(:phone, country_code: 1)                 # => +1-123-555-1234
#  1235551234.to_s(:phone, country_code: 1, extension: 1343, delimiter: '.')
#  # => +1.123.555.1234 x 1343
#
# gets input from user
puts "Please enter a phone number: "
phone_number = gets.to_i

# active_support will reformat 1112223333 to 111-222-3333
puts phone_number.to_s(:phone)

word_connector_as.rb

require "active_support"
require "active_support/core_ext/array/conversions.rb"

# Converts the array to a comma-separated sentence where the last element is
# joined by the connector word.
#
#   [].to_sentence                      # => ""
#   ['one'].to_sentence                 # => "one"
#   ['one', 'two'].to_sentence          # => "one and two"
#   ['one', 'two', 'three'].to_sentence # => "one, two, and three"
#
#   ['one', 'two'].to_sentence(passing: 'invalid option')
#   # => ArgumentError: Unknown key :passing
#
#   ['one', 'two'].to_sentence(two_words_connector: '-')
#   # => "one-two"
#
#   ['one', 'two', 'three'].to_sentence(words_connector: ' or ', last_word_connector: ' or at least ')
#   # => "one or two or at least three"

puts "Please list your favorite color or colors, without using commas:"
favorite_colors = gets.chomp

# allows only valid input
while favorite_colors.include?(",")
  puts "Invalid. Please try again without using commas:"
  favorite_colors = gets.chomp
end

# splits string at each " " into an array
favorite_colors = favorite_colors.split

if favorite_colors.length == 1
  puts favorite_colors.to_sentence
elsif favorite_colors.length == 2
  puts favorite_colors.to_sentence
else
  puts favorite_colors.to_sentence(words_connector: ' , ', last_word_connector: ', and ')
end