Class: KoelnerPhoneticCodeStringComparator (private in PhoneticStringUtilities

• Inheritance
• Description
• Instance protocol
  • api
  • private
• Examples

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:

 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'

 convertFirst: chars

#(

 convertRest: chars

used to be matchpattern code,

Examples: