Creating pinyin flashcards

creating-pinyin-flashcards.rb

# Used to create tables for importing into quizlet. 
# gem install zhongwen_tools
require 'zhongwen_tools'
require 'zhongwen_tools/core_ext/string'

def random_tone; (1..4).to_a.sample; end
def tsv_list(pyn); [pyn, pyn].join("\t"); end

def pinyin_list
  pyn = ZhongwenTools::Romanization::ROMANIZATIONS_TABLE.map { |k| k[:pyn]}
  pyns = pyn.flat_map { |p| "#{p}#{random_tone}"} 
  pyns.map { |p| p.to_py rescue p }
end


PINYIN_INITIALS = {
  bpmf: /^[bpmf]/,
  dtnl: /^[dtnl]/, 
  gkh: /^[gkh]/,
  zsc: /^[zsc][^h]/,
  zhchshr: /^([zsc]h|r)/,
  jqx: /^[jqx]/,
  aeoy: /^[yāáǎàēéěèōóǒò]/
}

def pinyins_table(initial:)
  regex = PINYIN_INITIALS.fetch(initial)
  puts pinyin_list.select { |p| p[regex] }.map{ |p| tsv_list(p)}
end

fix: nue2, lvn3