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Overview
| Comment: | Fix for the (unsupported) soundex algorithm so that it conforms to Knuth. Ticket #1925. Test cases added. (CVS 3358) |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: | 7810d1abf611ce40dd0de45610269359 |
| User & Date: | drh 2006-08-19 11:34:01 |
Context
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2006-08-19
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| 13:32 | Fix bug in documentation. Ticket #1927. (CVS 3359) check-in: 90296bc8 user: drh tags: trunk | |
| 11:34 | Fix for the (unsupported) soundex algorithm so that it conforms to Knuth. Ticket #1925. Test cases added. (CVS 3358) check-in: 7810d1ab user: drh tags: trunk | |
| 11:15 | Improved method for finding the home directory under windows. Ticket #1926. (CVS 3357) check-in: 10907bb2 user: drh tags: trunk | |
Changes
Changes to src/func.c.
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** This file contains the C functions that implement various SQL ** functions of SQLite. ** ** There is only one exported symbol in this file - the function ** sqliteRegisterBuildinFunctions() found at the bottom of the file. ** All other code has file scope. ** ** $Id: func.c,v 1.132 2006/06/24 11:51:33 danielk1977 Exp $ */ #include "sqliteInt.h" #include <ctype.h> /* #include <math.h> */ #include <stdlib.h> #include <assert.h> #include "vdbeInt.h" ................................................................................ 0, 0, 1, 2, 3, 0, 1, 2, 0, 0, 2, 2, 4, 5, 5, 0, 1, 2, 6, 2, 3, 0, 1, 0, 2, 0, 2, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 0, 1, 2, 0, 0, 2, 2, 4, 5, 5, 0, 1, 2, 6, 2, 3, 0, 1, 0, 2, 0, 2, 0, 0, 0, 0, 0, }; assert( argc==1 ); zIn = (u8*)sqlite3_value_text(argv[0]); if( zIn==0 ) zIn = ""; for(i=0; zIn[i] && !isalpha(zIn[i]); i++){} if( zIn[i] ){ zResult[0] = toupper(zIn[i]); for(j=1; j<4 && zIn[i]; i++){ int code = iCode[zIn[i]&0x7f]; if( code>0 ){ zResult[j++] = code + '0'; } } while( j<4 ){ zResult[j++] = '0'; } zResult[j] = 0; sqlite3_result_text(context, zResult, 4, SQLITE_TRANSIENT); |
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** This file contains the C functions that implement various SQL ** functions of SQLite. ** ** There is only one exported symbol in this file - the function ** sqliteRegisterBuildinFunctions() found at the bottom of the file. ** All other code has file scope. ** ** $Id: func.c,v 1.133 2006/08/19 11:34:01 drh Exp $ */ #include "sqliteInt.h" #include <ctype.h> /* #include <math.h> */ #include <stdlib.h> #include <assert.h> #include "vdbeInt.h" ................................................................................ 0, 0, 1, 2, 3, 0, 1, 2, 0, 0, 2, 2, 4, 5, 5, 0, 1, 2, 6, 2, 3, 0, 1, 0, 2, 0, 2, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 0, 1, 2, 0, 0, 2, 2, 4, 5, 5, 0, 1, 2, 6, 2, 3, 0, 1, 0, 2, 0, 2, 0, 0, 0, 0, 0, }; assert( argc==1 ); zIn = (u8*)sqlite3_value_text(argv[0]); if( zIn==0 ) zIn = (u8*)""; for(i=0; zIn[i] && !isalpha(zIn[i]); i++){} if( zIn[i] ){ u8 prevcode = iCode[zIn[i]&0x7f]; zResult[0] = toupper(zIn[i]); for(j=1; j<4 && zIn[i]; i++){ int code = iCode[zIn[i]&0x7f]; if( code>0 ){ if( code!=prevcode ){ prevcode = code; zResult[j++] = code + '0'; } }else{ prevcode = 0; } } while( j<4 ){ zResult[j++] = '0'; } zResult[j] = 0; sqlite3_result_text(context, zResult, 4, SQLITE_TRANSIENT); |
Changes to test/func.test.
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# May you find forgiveness for yourself and forgive others. # May you share freely, never taking more than you give. # #*********************************************************************** # This file implements regression tests for SQLite library. The # focus of this file is testing built-in functions. # # $Id: func.test,v 1.53 2006/06/20 11:01:09 danielk1977 Exp $ set testdir [file dirname $argv0] source $testdir/tester.tcl # Create a table to work with. # do_test func-0.0 { ................................................................................ } } {1 {MATCH is not implemented}} do_test func-19.4 { catchsql { SELECT match(1,2,3); } } {1 {wrong number of arguments to function match()}} finish_test |
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# May you find forgiveness for yourself and forgive others. # May you share freely, never taking more than you give. # #*********************************************************************** # This file implements regression tests for SQLite library. The # focus of this file is testing built-in functions. # # $Id: func.test,v 1.54 2006/08/19 11:34:02 drh Exp $ set testdir [file dirname $argv0] source $testdir/tester.tcl # Create a table to work with. # do_test func-0.0 { ................................................................................ } } {1 {MATCH is not implemented}} do_test func-19.4 { catchsql { SELECT match(1,2,3); } } {1 {wrong number of arguments to function match()}} # Soundex tests. # if {![catch {db eval {SELECT soundex('hello')}}]} { set i 0 foreach {name sdx} { euler E460 EULER E460 Euler E460 ellery E460 gauss G200 ghosh G200 hilbert H416 Heilbronn H416 knuth K530 kant K530 Lloyd L300 LADD L300 Lukasiewicz L222 Lissajous L222 A A000 12345 ?000 } { incr i do_test func-20.$i { execsql {SELECT soundex($name)} } $sdx } } finish_test |