class Collapser

Constants

DEFAULT_REPLACER
REPLACED_CHARS
VERSION

Attributes

replacer_arr[R]

replacer_arr_idx[RW]

text_arr[R]

Public Class Methods

new(text:, replacer: nil) click to toggle source

# File lib/collapser.rb, line 19
def initialize(text:, replacer: nil)
  @text_arr = text.split('')
  @replacer_arr = (replacer || DEFAULT_REPLACER).split('')
  @replacer_arr_idx = 0
end

Public Instance Methods

run() click to toggle source

# File lib/collapser.rb, line 27
def run
  text_arr.map { |char| convert_char(char: char) }.join
end

Private Instance Methods

char_type(char:) click to toggle source

# File lib/collapser.rb, line 52
def char_type(char:)
  return :other unless REPLACED_CHARS.include?(char)
  return :downcase if char.downcase == char

  :upcase
end

convert_char(char:) click to toggle source

# File lib/collapser.rb, line 35
def convert_char(char:)
  case char_type(char: char)
  when :other
    char
  when :downcase
    next_replace_char.downcase
  when :upcase
    next_replace_char.upcase
  end
end

increment_replacer_arr_idx!() click to toggle source

# File lib/collapser.rb, line 59
def increment_replacer_arr_idx!
  self.replacer_arr_idx = replacer_arr_idx + 1
  self.replacer_arr_idx = 0 if replacer_arr_idx >= replacer_arr.size
  replacer_arr_idx
end

next_replace_char() click to toggle source

# File lib/collapser.rb, line 46
def next_replace_char
  char = replacer_arr[replacer_arr_idx]
  increment_replacer_arr_idx!
  char
end