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# 2010 November 02
#
# The author disclaims copyright to this source code. In place of
# a legal notice, here is a blessing:
#
# May you do good and not evil.
# May you find forgiveness for yourself and forgive others.
# May you share freely, never taking more than you give.
#
#***********************************************************************
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
# If SQLITE_ENABLE_FTS3 is not defined, omit this file.
ifcapable !fts3 { finish_test ; return }
set testprefix fts3offsets
set sqlite_fts3_enable_parentheses 1
proc extract {offsets text} {
set res ""
set off [list]
foreach {t i s n} $offsets {
lappend off [list $s $n]
}
set off [lsort -integer -index 0 $off]
set iOff 0
foreach e $off {
foreach {s n} $e {}
append res [string range $text $iOff $s-1]
append res "("
append res [string range $text $s [expr $s+$n-1]]
append res ")"
set iOff [expr $s+$n]
}
append res [string range $text $iOff end]
set res
}
db func extract extract
do_execsql_test 1.1.0 {
CREATE VIRTUAL TABLE xx USING fts3(x);
INSERT INTO xx VALUES('A x x x B C x x');
INSERT INTO xx VALUES('A B C x B x x C');
INSERT INTO xx VALUES('A x x B C x x x');
}
do_execsql_test 1.1.1 {
SELECT oid,extract(offsets(xx), x) FROM xx WHERE xx MATCH 'a OR (b NEAR/1 c)';
} {
1 {(A) x x x (B) (C) x x}
2 {(A) (B) (C) x (B) x x C}
3 {(A) x x (B) (C) x x x}
}
do_execsql_test 1.2 {
DELETE FROM xx;
INSERT INTO xx VALUES('A x x x B C x x');
INSERT INTO xx VALUES('A x x C x x x C');
INSERT INTO xx VALUES('A x x B C x x x');
}
do_execsql_test 1.2.1 {
SELECT oid,extract(offsets(xx), x) FROM xx WHERE xx MATCH 'a OR (b NEAR/1 c)';
} {
1 {(A) x x x (B) (C) x x}
2 {(A) x x C x x x C}
3 {(A) x x (B) (C) x x x}
}
do_execsql_test 1.3 {
DELETE FROM xx;
INSERT INTO xx(rowid, x) VALUES(1, 'A B C');
INSERT INTO xx(rowid, x) VALUES(2, 'A x');
INSERT INTO xx(rowid, x) VALUES(3, 'A B C');
INSERT INTO xx(rowid, x) VALUES(4, 'A B C x x x x x x x B');
INSERT INTO xx(rowid, x) VALUES(5, 'A x x x x x x x x x C');
INSERT INTO xx(rowid, x) VALUES(6, 'A x x x x x x x x x x x B');
INSERT INTO xx(rowid, x) VALUES(7, 'A B C');
}
do_execsql_test 1.3.1 {
SELECT oid,extract(offsets(xx), x) FROM xx WHERE xx MATCH 'a OR (b NEAR/1 c)';
} {
1 {(A) (B) (C)}
2 {(A) x}
3 {(A) (B) (C)}
4 {(A) (B) (C) x x x x x x x B}
5 {(A) x x x x x x x x x C}
6 {(A) x x x x x x x x x x x B}
7 {(A) (B) (C)}
}
do_execsql_test 1.4 {
DELETE FROM xx;
INSERT INTO xx(rowid, x) VALUES(7, 'A B C');
INSERT INTO xx(rowid, x) VALUES(6, 'A x');
INSERT INTO xx(rowid, x) VALUES(5, 'A B C');
INSERT INTO xx(rowid, x) VALUES(4, 'A B C x x x x x x x B');
INSERT INTO xx(rowid, x) VALUES(3, 'A x x x x x x x x x C');
INSERT INTO xx(rowid, x) VALUES(2, 'A x x x x x x x x x x x B');
INSERT INTO xx(rowid, x) VALUES(1, 'A B C');
}
do_execsql_test 1.4.1 {
SELECT oid,extract(offsets(xx), x) FROM xx WHERE xx MATCH 'a OR (b NEAR/1 c)'
ORDER BY docid DESC;
} {
7 {(A) (B) (C)}
6 {(A) x}
5 {(A) (B) (C)}
4 {(A) (B) (C) x x x x x x x B}
3 {(A) x x x x x x x x x C}
2 {(A) x x x x x x x x x x x B}
1 {(A) (B) (C)}
}
do_execsql_test 1.5.0 {
CREATE VIRTUAL TABLE x1 USING fts3(x);
INSERT INTO x1 VALUES('A A A');
INSERT INTO x1 VALUES('A A A');
}
do_execsql_test 1.5.1 {
SELECT offsets(x1) FROM x1 WHERE x1 MATCH 'a OR b AND c NEAR d'
} {
{0 0 0 1 0 0 2 1 0 0 4 1}
{0 0 0 1 0 0 2 1 0 0 4 1}
}
set sqlite_fts3_enable_parentheses 0
finish_test
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