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Class: KoelnerPhoneticCodeStringComparator (private in PhoneticStringUtilities

This class is only visible from within PhoneticStringUtilities.

Inheritance:

   Object
   |
   +--PhoneticStringUtilities::PhoneticStringComparator
      |
      +--PhoneticStringUtilities::SingleResultPhoneticStringComparator
         |
         +--PhoneticStringUtilities::KoelnerPhoneticCodeStringComparator
Package:
stx:libbasic2
Category:
Collections-Text-Support
Owner:
PhoneticStringUtilities

Description:


The 'Kölner Phonetik' (cologne phonetic) code is for the german language 
what the soundex code is for english:
   it returns similar strings for similar sounding words 
(but is specifically aware of the pronunciation of German and eastern languages) . 

There are some other differences to soundex, though: 
   its length is not limited to 4, but depends on the length of the original string;
   it does not start with the first character of the input, but returns a pure numeric string.

This algorithm was described by Postel 1969,
See  http://de.wikipedia.org/wiki/K%C3%B6lner_Phonetik

    self new phoneticStringsFor:'Müller-Lüdenscheidt' -> #('65752682')

Instance protocol:

api
o  encode: aString
return a koelner phonetic code.
The koelnerPhonetic code is for the german language what the soundex code is for english;
it returns simular strings for similar sounding words.
There are some differences to soundex, though:
its length is not limited to 4, but depends on the length of the original string;
it does not start with the first character of the input.
This algorithm is described by Postel 1969

Usage example(s): 

     #(
        'Müller'
        'Miller'
        'Mueller'
        'Mühler'
        'Mühlherr'
        'Mülherr'
        'Myler'
        'Millar'
        'Myller'
        'Müllar'
        'Müler'
        'Muehler'
        'Mülller'
        'Müllerr'
        'Muehlherr'
        'Muellar'
        'Mueler'
        'Mülleer'
        'Mueller'
        'Nüller'
        'Nyller'
        'Niler'
        'Czerny'
        'Tscherny'
        'Czernie'
        'Tschernie'
        'Schernie'
        'Scherny'
        'Scherno'
        'Czerne'
        'Zerny'
        'Tzernie'
        'Breschnew'
        'Breschnew'
        'Breschneff'
        'Breschnjeff'
        'Braeschneff'
        'Braessneff' 
        'Pressneff' 
        'Presznäph'
        'Präschnäf' 
        'Breschnjeff' 
        'Breschnijeff' 
        'Breschnieff' 
     ) do:[:w |
         Transcript show:w; show:'->'; showCR:(PhoneticStringUtilities::KoelnerPhoneticCodeStringComparator new encode:w)
     ].

Usage example(s): 

     PhoneticStringUtilities::KoelnerPhoneticCodeStringComparator new encode:'Breschnew' -> '17863'
     PhoneticStringUtilities::KoelnerPhoneticCodeStringComparator new encode:'Breschneff' -> '17863'
     PhoneticStringUtilities::KoelnerPhoneticCodeStringComparator new encode:'Braeschneff' -> '17863'
     PhoneticStringUtilities::KoelnerPhoneticCodeStringComparator new encode:'Braessneff' -> '17863'
     PhoneticStringUtilities::KoelnerPhoneticCodeStringComparator new encode:'Pressneff' -> '17863'
     PhoneticStringUtilities::KoelnerPhoneticCodeStringComparator new encode:'Presznäph' -> '17863'
     PhoneticStringUtilities::KoelnerPhoneticCodeStringComparator new encode:'Präschnäf' -> '17863'
     PhoneticStringUtilities::KoelnerPhoneticCodeStringComparator new encode:'Breschnjeff' -> '17863'
     PhoneticStringUtilities::KoelnerPhoneticCodeStringComparator new encode:'Breschnijeff' -> '17863'
     PhoneticStringUtilities::KoelnerPhoneticCodeStringComparator new encode:'Breschnieff' -> '17863'

Usage example(s): 

     self basicNew encode:'müller'      -> '657'   
     self basicNew encode:'möller'      -> '657'
     self basicNew encode:'miller'      -> '657'     
     self basicNew encode:'muller'      -> '657'
     self basicNew encode:'muler'       -> '657'
     self basicNew encode:'schmidt'     -> '862'   
     self basicNew encode:'schneider'   -> '8627' 
     self basicNew encode:'fischer'     -> '387' 
     self basicNew encode:'weber'       -> '317' 
     self basicNew encode:'meyer'       -> '67' 
     self basicNew encode:'wagner'      -> '3467' 
     self basicNew encode:'schulz'      -> '858'
     self basicNew encode:'becker'      -> '147'
     self basicNew encode:'hoffmann'    -> '036'
     self basicNew encode:'schäfer'     -> '837'

private
o  convertFirst: chars
#(

o  convertRest: chars
used to be matchpattern code,

Examples:


words sounding similar (german pronunciation) will deliver a similar code:

  #(
     'Grossbottwar'
     'Großbottwar'
     'Großbottwar-Winzerhausen'
     'Großbottwar-Winserhausen'
     'Gr0ßbottwar-Winserhausen'
     'GrOßb0ttwar-Winserhausen'

     'Müller'
     'Miller'
     'Mueller'
     'Mühler'
     'Mühlherr'
     'Mülherr'
     'Myler'
     'Millar'
     'Myller'
     'Müllar'
     'Müler'
     'Muehler'
     'Mülller'
     'Müllerr'
     'Muehlherr'
     'Muellar'
     'Mueler'
     'Mülleer'
     'Mueller'
     'Nüller'
     'Nyller'
     'Niler'
     'Czerny'
     'Tscherny'
     'Czernie'
     'Tschernie'
     'Schernie'
     'Scherny'
     'Scherno'
     'Czerne'
     'Zerny'
     'Tzernie'
     'Breschnew'
     'Breschnew'
     'Breschneff'
     'Breschnjeff'
     'Braeschneff'
     'Braessneff' 
     'Pressneff' 
     'Presznäph'
     'Präschnäf' 
     'Breschnjeff' 
     'Breschnijeff' 
     'Breschnieff' 
     'Bräschnieff' 
     'Braschnieff' 
     'Broschnieff' 
  ) do:[:w |
      Transcript show:w; show:'->'; showCR:(PhoneticStringUtilities::KoelnerPhoneticCodeStringComparator new encode:w)
  ].

ST/X 7.7.0.0; WebServer 1.702 at 20f6060372b9.unknown:8081; Tue, 22 Oct 2024 14:26:48 GMT