module PinYin

# File lib/ruby_pinyin.rb, line 20
def abbr(str, except_lead=false, except_english=true)
  result = ""
  of_string(str).each_with_index do |word, i|
    w = (except_lead && i == 0) || (except_english && word.english?) ? word : word[0]
    result << w
  end
  result
end

# File lib/ruby_pinyin.rb, line 33
def override_files=(files)
  klass = backend ? backend.class : PinYin::Backend::MMSeg
  self.backend = klass.new files
end

# File lib/ruby_pinyin.rb, line 16
def permlink(str, sep='-')
  of_string(str).join(sep)
end

# File lib/ruby_pinyin.rb, line 11
def romanize(str, tone=nil, include_punctuations=false)
  backend.romanize(str, tone, include_punctuations)
end

# File lib/ruby_pinyin.rb, line 29
def sentence(str, tone=nil)
  of_string(str, tone, true).join(' ')
end