SQLite

/*
** 2004 April 6
**
** 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.
**
*************************************************************************
** $Id: btree.c,v 1.165 2004/06/13 23:07:04 drh Exp $
**
** This file implements a external (disk-based) database using BTrees.
** For a detailed discussion of BTrees, refer to
**
**     Donald E. Knuth, THE ART OF COMPUTER PROGRAMMING, Volume 3:
**     "Sorting And Searching", pages 473-480. Addison-Wesley
**     Publishing Company, Reading, Massachusetts.

    goto create_cursor_exception;
  }
  pCur->xCompare = xCmp ? xCmp : dfltCompare;
  pCur->pArg = pArg;
  pCur->pBt = pBt;
  pCur->wrFlag = wrFlag;
  pCur->idx = 0;
  memset(&pCur->info, 0, sizeof(pCur->info));
  pCur->pNext = pBt->pCursor;
  if( pCur->pNext ){
    pCur->pNext->pPrev = pCur;
  }
  pCur->pPrev = 0;
  pRing = pBt->pCursor;
  while( pRing && pRing->pgnoRoot!=pCur->pgnoRoot ){ pRing = pRing->pNext; }

**
*************************************************************************
** Main file for the SQLite library.  The routines in this file
** implement the programmer interface to the library.  Routines in
** other files are for internal use by SQLite and should not be
** accessed by users of the library.
**
** $Id: main.c,v 1.219 2004/06/13 23:07:04 drh Exp $
*/
#include "sqliteInt.h"
#include "os.h"
#include <ctype.h>

/*
** A pointer to this structure is used to communicate information

  void(*xCollNeeded16)(void*,sqlite3*,int eTextRep,const void*)
){
  db->xCollNeeded = 0;
  db->xCollNeeded16 = xCollNeeded16;
  db->pCollNeededArg = pCollNeededArg;
  return SQLITE_OK;
}

#    May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this script testing the ability of SQLite to handle database
# files larger than 4GB.
#
# $Id: bigfile.test,v 1.4 2004/06/13 23:07:04 drh Exp $
#

set testdir [file dirname $argv0]
source $testdir/tester.tcl

# These tests only work for Tcl version 8.4 and later.  Prior to 8.4,
# Tcl was unable to handle large files.

do_test bigfile-1.2 {
  sqlite db test.db
  execsql {
    SELECT md5sum(x) FROM t1;
  }
} $::MAGIC_SUM


# The previous test may fail on some systems because they are unable
# to handle large files.  If that is so, then skip all of the following
# tests.  We will know the above test failed because the "db" command
# does not exist.
#
if {[llength [info command db]]>0} {

#
#***********************************************************************
# This file implements regression tests for SQLite library.  The focus of
# this file is testing the SQLite routines used for converting between the
# various suported unicode encodings (UTF-8, UTF-16, UTF-16le and
# UTF-16be).
#
# $Id: enc2.test,v 1.9 2004/06/13 23:07:04 drh Exp $

set testdir [file dirname $argv0]
source $testdir/tester.tcl

db close

# Return the UTF-8 representation of the supplied UTF-16 string $str. 

} $enc

}

# The three unicode encodings understood by SQLite.
set encodings [list UTF-8 UTF-16le UTF-16be]

set sqlite_os_trace 0
set i 1
foreach enc $encodings {
  file delete -force test.db
  sqlite db test.db
  db eval "PRAGMA encoding = \"$enc\""
  execsql $dbcontents
  db close
  run_test_script enc2-$i $enc
  db close
  incr i
}

# Test that it is an error to try to attach a database with a different
# encoding to the main database.
do_test enc2-4.1 {
  file delete -force test.db

breakpoint
do_test enc2-5.3 {
  add_test_collate $DB 0 0 1
  set res [execsql {SELECT * FROM t5 ORDER BY 1 COLLATE test_collate}]
  lappend res $::test_collate_enc
} {one two three four five UTF-16BE}

db close
file delete -force test.db
set DB [sqlite db test.db]
execsql {pragma encoding = 'UTF-16LE'}
do_test enc2-5.4 {
  execsql {
    CREATE TABLE t5(a);
    INSERT INTO t5 VALUES('one');

breakpoint
do_test enc2-5.7 {
  add_test_collate $DB 1 0 0
  set res [execsql {SELECT * FROM t5 ORDER BY 1 COLLATE test_collate}]
  lappend res $::test_collate_enc
} {one two three four five UTF-8}

db close
file delete -force test.db
set DB [sqlite db test.db]
execsql {pragma encoding = 'UTF-16BE'}
do_test enc2-5.8 {
  execsql {
    CREATE TABLE t5(a);
    INSERT INTO t5 VALUES('one');

do_test enc2-5.11 {
  add_test_collate $DB 1 0 0
  set res [execsql {SELECT * FROM t5 ORDER BY 1 COLLATE test_collate}]
  lappend res $::test_collate_enc
} {one two three four five UTF-8}

finish_test