Class: RUT

Inherits:
Object
  • Object
show all
Defined in:
lib/chilean_rut.rb

Overview

All functions are just defined statically in this module

Class Method Summary collapse

Class Method Details

.format(raw_rut) ⇒ Object

This method will give a raw R.U.T. string its proper format adding the right points & hyphens



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# File 'lib/chilean_rut.rb', line 126

def self.format(raw_rut)
  rut = raw_rut.to_s.delete '.-'
  if rut.nil? || rut.empty?
    return rut
  end
  rut_end = rut[rut.length - 1, rut.length]
  rut_init_temp = rut[0, rut.length - 1]
  rut_init = ''
  while rut_init_temp.length > 3 do
    rut_init = '.' + rut_init_temp[rut_init_temp.length - 3, rut_init_temp.length] + rut_init
    rut_init_temp = rut_init_temp[0, rut_init_temp.length - 3]
  end
  rut = rut_init_temp+rut_init+'-'+rut_end
  return rut.upcase
end

.get_dv(rut) ⇒ Object

Every R.U.T. has a single valid Digito Verificador which is calculated based on its digits

Given a R.U.T. this function returns its Digito Verificador as a string



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# File 'lib/chilean_rut.rb', line 15

def self.get_dv(rut)
  suma=0
  mul=2
  rut.reverse.split("").each do |c|
    suma=suma+c.to_i*mul
    if mul==7
      mul=2
    else
      mul+=1
    end
  end
  res=suma%11
  if res==1
    return 'k'
  elsif res==0
    return '0'
  else
    return 11-res
  end
end

.get_rut_and_dv(rut) ⇒ Object

This method will give a raw R.U.T. string this method returns boolean wether it no is valid or a hash if string is a valid rut



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# File 'lib/chilean_rut.rb', line 144

def self.get_rut_and_dv(rut)
  unless self.validate(rut)
    return false
  end

  rut = self.format(rut).split("-")

  out = {
    :rut => rut.first.delete("."),
    :dv => rut.last
  }
end

.obfuscated(rut, replace_string = 'X', obfuscated_len = 2, obfuscated_dv = true) ⇒ Object

obfuscated R.U.T with string

This function returns string with RUT obfuscated



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# File 'lib/chilean_rut.rb', line 40

def self.obfuscated(rut, replace_string = 'X', obfuscated_len = 2, obfuscated_dv = true)
  rut = self.get_rut_and_dv(rut)

  rut[:rut][rut[:rut].length - obfuscated_len, rut[:rut].length] = replace_string * obfuscated_len
  rut[:dv] = (obfuscated_dv) ? replace_string : rut[:dv]

  rut = self.format("#{rut[:rut]}-#{rut[:dv]}")

  return rut
end

.remove_format(rut) ⇒ Object

Strips a R.U.T. format (points & hyphens)



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# File 'lib/chilean_rut.rb', line 73

def self.remove_format(rut)
  rut=rut.delete "."
  rut=rut.delete "-"
end

.remove_hyphens(rut) ⇒ Object

Strips a R.U.T. format (only hyphens)



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# File 'lib/chilean_rut.rb', line 84

def self.remove_hyphens(rut)
  rut=rut.delete "-"
end

.remove_points(rut) ⇒ Object

Strips a R.U.T. format (only points)



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# File 'lib/chilean_rut.rb', line 79

def self.remove_points(rut)
  rut=rut.delete "."
end

.valid_dv(dv) ⇒ Object

Returns boolean wether the given string is a valid Digito Verificador character or not



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# File 'lib/chilean_rut.rb', line 7

def self.valid_dv(dv)
  ['0','1','2','3','4','5','6','7','8','9','k','K'].include?(dv)
end

.validate(texto) ⇒ Object

Given a R.U.T. (whatever the format, i.e. with or without points & hyphens) this method returns boolean wether it is valid or not



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# File 'lib/chilean_rut.rb', line 90

def self.validate(texto)
  texto=self.remove_format(texto)
  return false if texto.size < 2
  texto.split("").each do |c|
    return false if !valid_dv(c)
  end
  invertido=texto.reverse
  dtexto=invertido[0]+"-"
  cnt=0
  i=1
  j=2
  for x in 1...texto.size do
    if cnt==3
      dtexto=dtexto+"."
      j+=1
      dtexto=dtexto+invertido[x]
      cnt=1
    else
      dtexto=dtexto+invertido[x]
      cnt+=1
    end
    i+=1
    j+=1
  end
  invertido=""
  i=dtexto.size-1
  j=0
  (0..i).to_a.reverse.each do |y|
    invertido=invertido+dtexto[y]
    j+=1
  end
  return validate_dv(texto)
end

.validate_dv(crut) ⇒ Object

Given a R.U.T. including its Digito Verificador (whatever the format, i.e. with or without points & hyphens)

This function returns boolean wether the Digito Verificador matches the R.U.T. or not



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# File 'lib/chilean_rut.rb', line 55

def self.validate_dv(crut)
  return false if crut.size < 2
  if crut.size > 2
    rut=crut[0...crut.size-1]
  else
    rut=crut[0]
  end
  dv=crut[crut.size-1]
  return false if !valid_dv(dv)
  if rut.nil? || dv.nil?
    return 0 #TODO ?
  end
  dvr=get_dv(rut)
  dvr.to_s==dv.downcase
end