124 lines
		
	
	
		
			3.2 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
			
		
		
	
	
			124 lines
		
	
	
		
			3.2 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
# 2010 November 02
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#
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# The author disclaims copyright to this source code.  In place of
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# a legal notice, here is a blessing:
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#
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#    May you do good and not evil.
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#    May you find forgiveness for yourself and forgive others.
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#    May you share freely, never taking more than you give.
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#
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#***********************************************************************
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#
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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# If SQLITE_ENABLE_FTS3 is not defined, omit this file.
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ifcapable !fts3 { finish_test ; return }
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set testprefix fts3offsets
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set sqlite_fts3_enable_parentheses 1
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proc extract {offsets text} {
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  set res ""
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  set off [list]
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  foreach {t i s n} $offsets {
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    lappend off [list $s $n]
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  }
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  set off [lsort -integer -index 0 $off]
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  set iOff 0
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  foreach e $off {
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    foreach {s n} $e {}
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    append res [string range $text $iOff $s-1]
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    append res "("
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    append res [string range $text $s [expr $s+$n-1]]
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    append res ")"
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    set iOff [expr $s+$n]
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  }
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  append res [string range $text $iOff end]
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  set res
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}
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db func extract extract
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do_execsql_test 1.1.0 {
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  CREATE VIRTUAL TABLE xx USING fts3(x);
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  INSERT INTO xx VALUES('A x x x B C x x');
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  INSERT INTO xx VALUES('A B C x B x x C');
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  INSERT INTO xx VALUES('A x x B C x x x');
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}
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do_execsql_test 1.1.1 {
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  SELECT oid,extract(offsets(xx), x) FROM xx WHERE xx MATCH 'a OR (b NEAR/1 c)';
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} {
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  1 {(A) x x x (B) (C) x x} 
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  2 {(A) (B) (C) x (B) x x C} 
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  3 {(A) x x (B) (C) x x x}
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}
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do_execsql_test 1.2 {
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  DELETE FROM xx;
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  INSERT INTO xx VALUES('A x x x B C x x');
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  INSERT INTO xx VALUES('A x x C x x x C');
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  INSERT INTO xx VALUES('A x x B C x x x');
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}
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do_execsql_test 1.2.1 {
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  SELECT oid,extract(offsets(xx), x) FROM xx WHERE xx MATCH 'a OR (b NEAR/1 c)';
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} {
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  1 {(A) x x x (B) (C) x x}
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  2 {(A) x x C x x x C} 
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  3 {(A) x x (B) (C) x x x}
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}
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do_execsql_test 1.3 {
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  DELETE FROM xx;
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  INSERT INTO xx(rowid, x) VALUES(1, 'A B C');
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  INSERT INTO xx(rowid, x) VALUES(2, 'A x');
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  INSERT INTO xx(rowid, x) VALUES(3, 'A B C');
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  INSERT INTO xx(rowid, x) VALUES(4, 'A B C x x x x x x x B');
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  INSERT INTO xx(rowid, x) VALUES(5, 'A x x x x x x x x x C');
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  INSERT INTO xx(rowid, x) VALUES(6, 'A x x x x x x x x x x x B');
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  INSERT INTO xx(rowid, x) VALUES(7, 'A B C');
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}
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do_execsql_test 1.3.1 {
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  SELECT oid,extract(offsets(xx), x) FROM xx WHERE xx MATCH 'a OR (b NEAR/1 c)';
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} {
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  1 {(A) (B) (C)}
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  2 {(A) x}
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  3 {(A) (B) (C)}
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  4 {(A) (B) (C) x x x x x x x B}
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  5 {(A) x x x x x x x x x C}
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  6 {(A) x x x x x x x x x x x B} 
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  7 {(A) (B) (C)}
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}
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do_execsql_test 1.4 {
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  DELETE FROM xx;
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  INSERT INTO xx(rowid, x) VALUES(7, 'A B C');
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  INSERT INTO xx(rowid, x) VALUES(6, 'A x');
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  INSERT INTO xx(rowid, x) VALUES(5, 'A B C');
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  INSERT INTO xx(rowid, x) VALUES(4, 'A B C x x x x x x x B');
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  INSERT INTO xx(rowid, x) VALUES(3, 'A x x x x x x x x x C');
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  INSERT INTO xx(rowid, x) VALUES(2, 'A x x x x x x x x x x x B');
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  INSERT INTO xx(rowid, x) VALUES(1, 'A B C');
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}
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do_execsql_test 1.4.1 {
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  SELECT oid,extract(offsets(xx), x) FROM xx WHERE xx MATCH 'a OR (b NEAR/1 c)'
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  ORDER BY docid DESC;
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} {
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  7 {(A) (B) (C)}
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  6 {(A) x}
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  5 {(A) (B) (C)}
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  4 {(A) (B) (C) x x x x x x x B}
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  3 {(A) x x x x x x x x x C}
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  2 {(A) x x x x x x x x x x x B} 
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  1 {(A) (B) (C)}
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}
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set sqlite_fts3_enable_parentheses 0
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finish_test
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