? contrib/fuzzystrmatch/.deps
? contrib/fuzzystrmatch/fuzzystrmatch.sql
? contrib/fuzzystrmatch/libfuzzystrmatch.so.0.0
Index: contrib/fuzzystrmatch/README.fuzzystrmatch
===================================================================
RCS file: /projects/cvsroot/pgsql/contrib/fuzzystrmatch/README.fuzzystrmatch,v
retrieving revision 1.7
diff -c -r1.7 README.fuzzystrmatch
*** contrib/fuzzystrmatch/README.fuzzystrmatch	1 Jan 2005 20:44:11 -0000	1.7
--- contrib/fuzzystrmatch/README.fuzzystrmatch	25 Jan 2005 06:07:11 -0000
***************
*** 33,38 ****
--- 33,42 ----
   * Folded existing soundex contrib into this one. Renamed text_soundex() (C function)
   * to soundex() for consistency.
   *
+  * difference()
+  * ------------
+  * Return the difference between two strings' soundex values.  Kris Jurka
+  *
   * Permission to use, copy, modify, and distribute this software and its
   * documentation for any purpose, without fee, and without a written agreement
   * is hereby granted, provided that the above copyright notice and this
Index: contrib/fuzzystrmatch/README.soundex
===================================================================
RCS file: /projects/cvsroot/pgsql/contrib/fuzzystrmatch/README.soundex,v
retrieving revision 1.2
diff -c -r1.2 README.soundex
*** contrib/fuzzystrmatch/README.soundex	1 Jul 2004 03:25:48 -0000	1.2
--- contrib/fuzzystrmatch/README.soundex	25 Jan 2005 06:07:11 -0000
***************
*** 7,21 ****
--- 7,31 ----
  beyond English names (or the English pronunciation of names), and
  it is not a linguistic tool.
  
+ When comparing two soundex values to determine similarity, the
+ difference function reports how close the match is on a scale
+ from zero to four, with zero being no match and four being an
+ exact match.
+ 
  The following are some usage examples:
  
  SELECT soundex('hello world!');
  
+ SELECT soundex('Anne'), soundex('Ann'), difference('Anne', 'Ann');
+ SELECT soundex('Anne'), soundex('Andrew'), difference('Anne', 'Andrew');
+ SELECT soundex('Anne'), soundex('Margaret'), difference('Anne', 'Margaret');
+ 
  CREATE TABLE s (nm text)\g
  
  insert into s values ('john')\g
  insert into s values ('joan')\g
  insert into s values ('wobbly')\g
+ insert into s values ('jack')\g
  
  select * from s
  where soundex(nm) = soundex('john')\g
***************
*** 58,62 ****
  WHERE text_sx_eq(nm,'john')\g
  
  SELECT *
! from s
! where s.nm #= 'john';
--- 68,77 ----
  WHERE text_sx_eq(nm,'john')\g
  
  SELECT *
! FROM s
! WHERE s.nm #= 'john';
! 
! SELECT *
! FROM s
! WHERE difference(s.nm, 'john') > 2;
! 
Index: contrib/fuzzystrmatch/fuzzystrmatch.c
===================================================================
RCS file: /projects/cvsroot/pgsql/contrib/fuzzystrmatch/fuzzystrmatch.c,v
retrieving revision 1.14
diff -c -r1.14 fuzzystrmatch.c
*** contrib/fuzzystrmatch/fuzzystrmatch.c	1 Jan 2005 05:43:06 -0000	1.14
--- contrib/fuzzystrmatch/fuzzystrmatch.c	25 Jan 2005 06:07:11 -0000
***************
*** 755,757 ****
--- 755,777 ----
  		++count;
  	}
  }
+ 
+ PG_FUNCTION_INFO_V1(difference);
+ 
+ Datum
+ difference(PG_FUNCTION_ARGS)
+ {
+ 	char sndx1[SOUNDEX_LEN+1], sndx2[SOUNDEX_LEN+1];
+ 	int i, result;
+ 
+ 	_soundex(_textout(PG_GETARG_TEXT_P(0)), sndx1);
+ 	_soundex(_textout(PG_GETARG_TEXT_P(1)), sndx2);
+ 
+ 	result = 0;
+ 	for (i=0; i<SOUNDEX_LEN; i++) {
+ 		if (sndx1[i] == sndx2[i])
+ 			result++;
+ 	}
+ 
+ 	PG_RETURN_INT32(result);
+ }
Index: contrib/fuzzystrmatch/fuzzystrmatch.h
===================================================================
RCS file: /projects/cvsroot/pgsql/contrib/fuzzystrmatch/fuzzystrmatch.h,v
retrieving revision 1.10
diff -c -r1.10 fuzzystrmatch.h
*** contrib/fuzzystrmatch/fuzzystrmatch.h	1 Jan 2005 05:43:06 -0000	1.10
--- contrib/fuzzystrmatch/fuzzystrmatch.h	25 Jan 2005 06:07:11 -0000
***************
*** 60,65 ****
--- 60,66 ----
  extern Datum levenshtein(PG_FUNCTION_ARGS);
  extern Datum metaphone(PG_FUNCTION_ARGS);
  extern Datum soundex(PG_FUNCTION_ARGS);
+ extern Datum difference(PG_FUNCTION_ARGS);
  
  /*
   * Soundex
Index: contrib/fuzzystrmatch/fuzzystrmatch.sql.in
===================================================================
RCS file: /projects/cvsroot/pgsql/contrib/fuzzystrmatch/fuzzystrmatch.sql.in,v
retrieving revision 1.6
diff -c -r1.6 fuzzystrmatch.sql.in
*** contrib/fuzzystrmatch/fuzzystrmatch.sql.in	1 Jul 2004 03:25:48 -0000	1.6
--- contrib/fuzzystrmatch/fuzzystrmatch.sql.in	25 Jan 2005 06:07:11 -0000
***************
*** 19,24 ****
--- 19,28 ----
  AS 'MODULE_PATHNAME', 'soundex'
  LANGUAGE 'C';
  
+ CREATE FUNCTION difference(text,text) RETURNS int
+ AS 'MODULE_PATHNAME', 'difference'
+ LANGUAGE 'C';
+ 
  CREATE FUNCTION dmetaphone (text) RETURNS text 
  LANGUAGE C IMMUTABLE STRICT
  AS 'MODULE_PATHNAME', 'dmetaphone';