Class: ExtendedSoundexStringComparator (private in PhoneticStringUtilities

• Inheritance
• Description
• Instance protocol
  • api
  • private

Inheritance:

   Object
   |
   +--PhoneticStringUtilities::PhoneticStringComparator
      |
      +--PhoneticStringUtilities::ExtendedSoundexStringComparator

Package:

stx:libbasic2

Category:

Collections-Text-Support

Owner:

PhoneticStringUtilities

Description:

There are many extended and enhanced soundex variants around;
here is one, called 'extended soundex'. It is destribed for example in
http://www.epidata.dk/documentation.php.
An author or origin is unknown.

The number of digits is increased to 5 or 8;
The first character is not used literally; instead it is encoded like the rest.
This might have a negative effect on names starting with a vovel, though.

Overall, it can be doubted if this is really an enhancement after all.

Instance protocol:

 phoneticStringsFor: aString

generates both an extended soundex of length 5 and one of length 8

Usage example(s):

self basicNew phoneticStringsFor:'müller' #('87900' '87900000') self basicNew phoneticStringsFor:'miller' #('87900' '87900000') self basicNew phoneticStringsFor:'muller' #('87900' '87900000') self basicNew phoneticStringsFor:'muler' #('87900' '87900000') self basicNew phoneticStringsFor:'schmidt' #('38600' '38600000') self basicNew phoneticStringsFor:'schneider' #('38690' '38690000') self basicNew phoneticStringsFor:'fischer' #('23900' '23900000') self basicNew phoneticStringsFor:'weber' #('19000' '19000000') self basicNew phoneticStringsFor:'meyer' #('89000' '89000000') self basicNew phoneticStringsFor:'wagner' #('48900' '48900000') self basicNew phoneticStringsFor:'schulz' #('37500' '37500000') self basicNew phoneticStringsFor:'becker' #('13900' '13900000') self basicNew phoneticStringsFor:'hoffmann' #('28800' '28800000') self basicNew phoneticStringsFor:'schäfer' #('32900' '32900000')

 translate: aCharacter

use simple if's for more speed when compiled