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Add double metaphone code from Andrew Dunstan. Also change metaphone so that

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an empty input string causes an empty output string to be returned, instead of
throwing an ERROR -- per complaint from Aaron Hillegass, and consistent with
double metaphone. Fix examples in README.soundex pointed out by James Robinson.
This commit is contained in:
Joe Conway
2004-07-01 03:25:48 +00:00
parent 77a436ba55
commit 13629df5a1
6 changed files with 1489 additions and 7 deletions
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14
contrib/fuzzystrmatch/README.fuzzystrmatch
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@ -23,6 +23,11 @@
* Metaphone was originally created by Lawrence Philips and presented in article
* in "Computer Language" December 1990 issue.
*
* dmetaphone() and dmetaphone_alt()
* ---------------------------------
* A port of the DoubleMetaphone perl module by Andrew Dunstan. See dmetaphone.c
* for more detail.
*
* soundex()
* -----------
* Folded existing soundex contrib into this one. Renamed text_soundex() (C function)
@ -48,11 +53,14 @@
*/
Version 0.2 (7 August, 2001):
Functions to calculate the degree to which two strings match in a "fuzzy" way
Tested under Linux (Red Hat 6.2 and 7.0) and PostgreSQL 7.2devel
Version 0.3 (30 June, 2004):
Release Notes:
Version 0.3
- added double metaphone code from Andrew Dunstan
- change metaphone so that an empty input string causes an empty
output string to be returned, instead of throwing an ERROR
- fixed examples in README.soundex
Version 0.2
- folded soundex contrib into this one