igneus

# decode the inscription around the SkKySIO logo
# https://commons.wikimedia.org/wiki/File:SkKySIO.svg

code = 'oiooiioooiioiiiioiiooiiioiioiiiioiiiooii'

p code
    .tr('oi', '01')
    .scan(/.{8}/)
    .collect {|i| i.to_i(2).chr }

igneus

# How many celebrations of rank of a feast or higher have been added
# since the 1969 calendar reform?
# (Data for the discussion at https://www.facebook.com/Liturgie.cz/posts/pfbid02g7wBtAEfsuwjZDoebsqsjnu5VHAyx42txiRqreZrRZ826mxPPzGfjp48PAjgyZXal )

require 'calendarium-romanum/cr'
require 'pp'

class CalendariumRomanum::Sanctorale
  def to_h
    r = {}

igneus

# Which sanctorale feasts are celebrated on inverse dates like 2/5 x 5/2?

require 'calendarium-romanum/cr'

class CR::AbstractDate
  def inverse
    return nil if day > 12 || day == month
    self.class.new(day, month)
  end
end

igneus

require 'calendarium-romanum/cr'
require 'set'
require 'colorize'
require 'optparse'

MEMORIALS_WITH_FESTAL_PSALMS = Set.new(%i[
agnes
baptist_beheading
bvm_sorrows
guardian_angels

igneus

# custom formatter for calrom https://github.com/calendarium-romanum/calrom

# Don't expect calrom code to be already loaded, load all direct dependencies of our class - this allows usage like
# $ RUBYOPT="-I my/custom/code/dir -r ultra_condensed_formatter" calrom -f ultracondensed --today
require 'calrom/formatter/formatter'

module Calrom
  module Formatter
    # Prints just one or two characters signalling
    # what kind of celebration is celebrated today.

igneus

# Which portions of the repertory of Ordinary time Sundays
# (lessons, corresponding chants of the Mass and Divine Office)
# are left unused in the given range of liturgical years?

require 'calendarium-romanum/cr'
require 'set'

SUNDAYS = (2..33).to_a.freeze
SANCTORALE = CR::Data::GENERAL_ROMAN_ENGLISH.load

igneus

# In which years does each feast of the Lord fall on Sunday and is thus celebrated with first Vespers?

require 'calendarium-romanum/cr'

years = 2000 .. 2100
sanctorale = CR::Data::GENERAL_ROMAN_ENGLISH.load

sanctorale
  .each_day
  .select {|_,celebrations| celebrations.first.rank == CR::Ranks::FEAST_LORD_GENERAL }

igneus

# Which Ordinary time Sundays were not celebrated in the given liturgical year?

require 'calendarium-romanum/cr'

SUNDAYS = (2..33).to_a.freeze
SANCTORALE = CR::Data::GENERAL_ROMAN_ENGLISH.load

def skipped_sundays(year)
  cal = CR::Calendar.new year, SANCTORALE
  r = SUNDAYS.dup

igneus

# In which years Sacred Heart occurs with another solemnity and
# https://github.com/igneus/calendarium-romanum/issues/80
# will hit again?

require 'calendarium-romanum/cr'

sanctorale = CR::Data::GENERAL_ROMAN_ENGLISH.load

(2020..2200).each do |liturgical_year|
  date = CR::Temporale::Dates.sacred_heart liturgical_year

igneus

# How often is the feast of St. Adalbert suppressed?

require 'calendarium-romanum/cr'

cal = CR::PerpetualCalendar.new sanctorale: CR::Data['czech-praha-cs'].load_with_parents
date = CR::AbstractDate.new 4, 23

(1970..2100).each do |y|
  puts y if cal[date.concretize(y)].celebrations.first.symbol != :adalbert
end