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Commit c526f5d2 authored by monty@hundin.mysql.fi's avatar monty@hundin.mysql.fi
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Merge work:/home/bk/mysql-4.0 into hundin.mysql.fi:/my/bk/mysql-4.0

parents 36a14aac 2dd0b802
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Showing with 459 additions and 26 deletions
configure.in
View file @ c526f5d2
...@@ -1814,23 +1814,23 @@ fi ...@@ -1814,23 +1814,23 @@ fi
AC_SUBST(readline_dir) AC_SUBST(readline_dir)
AC_SUBST(readline_link) AC_SUBST(readline_link)
# Choose a character set dnl In order to add new charset, you must add charset name to
dnl in order to add new charset, you must add charset name to dnl this CHARSETS_AVAILABLE list and sql/share/charsets/Index.
dnl CHARSETS_AVAILABLE list and add the charset name to dnl If the character set uses strcoll or other special handling,
dnl sql/share/charsets/Index. If the character set uses strcoll dnl you must also create strings/ctype-$charset_name.c
dnl or other special handling, you must also create
dnl strings/ctype-$charset_name.c
CHARSETS_AVAILABLE="big5 cp1251 cp1257 croat czech danish dec8 dos estonia euc_kr gb2312 gbk german1 greek hebrew hp8 hungarian koi8_ru koi8_ukr latin1 latin2 latin5 swe7 usa7 win1250 win1251 win1251ukr ujis sjis tis620" AC_DIVERT_PUSH(0)
DEFAULT_CHARSET=latin1 CHARSETS_AVAILABLE="big5 cp1251 cp1257
dnl win1251 is deprecated - it's available, but not listed here in the help
AC_ARG_WITH(charset,
[ --with-charset=CHARSET Use CHARSET by default (one of: big5 cp1251 cp1257
croat czech danish dec8 dos estonia euc_kr gb2312 gbk croat czech danish dec8 dos estonia euc_kr gb2312 gbk
german1 greek hebrew hp8 hungarian koi8_ru koi8_ukr german1 greek hebrew hp8 hungarian koi8_ru koi8_ukr
latin1 latin2 latin5 swe7 usa7 win1250 win1251ukr latin1 latin1_de latin2 latin5 sjis swe7 tis620 ujis
ujis sjis tis620; Default is latin1)], usa7 win1250 win1251ukr"
CHARSETS_DEPRECATED="win1251"
DEFAULT_CHARSET=latin1_de
AC_DIVERT_POP
AC_ARG_WITH(charset,
[ --with-charset=CHARSET Use CHARSET by default (one of: $CHARSETS_AVAILABLE; Default is $DEFAULT_CHARSET)],
[default_charset="$withval"], [default_charset="$withval"],
[default_charset="$DEFAULT_CHARSET"]) [default_charset="$DEFAULT_CHARSET"])
...@@ -1851,7 +1851,7 @@ elif test "$extra_charsets" = complex; then ...@@ -1851,7 +1851,7 @@ elif test "$extra_charsets" = complex; then
CHARSETS=`echo $CHARSETS` # get rid of line breaks CHARSETS=`echo $CHARSETS` # get rid of line breaks
else else
if test "$extra_charsets" = all; then if test "$extra_charsets" = all; then
CHARSETS="$CHARSETS_AVAILABLE" CHARSETS="$CHARSETS_AVAILABLE $CHARSETS_DEPRECATED"
else else
CHARSETS=`echo $extra_charsets | sed -e 's/,/ /g'` CHARSETS=`echo $extra_charsets | sed -e 's/,/ /g'`
fi fi
...@@ -1872,7 +1872,7 @@ CHARSETS=$TMP_CHARSETS ...@@ -1872,7 +1872,7 @@ CHARSETS=$TMP_CHARSETS
for cs in $CHARSETS for cs in $CHARSETS
do do
charset_okay=0 charset_okay=0
for charset in $CHARSETS_AVAILABLE for charset in $CHARSETS_AVAILABLE $CHARSETS_DEPRECATED
do do
if test $cs = $charset; then charset_okay=1; fi if test $cs = $charset; then charset_okay=1; fi
done done
......
libmysql/Makefile.shared
View file @ c526f5d2
...@@ -58,12 +58,6 @@ mysysobjects1 = my_init.lo my_static.lo my_malloc.lo my_realloc.lo \ ...@@ -58,12 +58,6 @@ mysysobjects1 = my_init.lo my_static.lo my_malloc.lo my_realloc.lo \
charset.lo hash.lo mf_iocache.lo my_seek.lo \ charset.lo hash.lo mf_iocache.lo my_seek.lo \
my_pread.lo mf_cache.lo my_vsnprintf.lo my_pread.lo mf_cache.lo my_vsnprintf.lo
link_sources:
for f in $(mysys_src); do \
rm -f $$f; \
@LN_CP_F@ ../mysys/$$f $$f; \
done;
# Not needed in the minimum library # Not needed in the minimum library
mysysobjects2 = getopt.lo getopt1.lo getvar.lo my_lib.lo mysysobjects2 = getopt.lo getopt1.lo getvar.lo my_lib.lo
mysysobjects = $(mysysobjects1) $(mysysobjects2) mysysobjects = $(mysysobjects1) $(mysysobjects2)
......
mysql-test/mysql-test-run.sh
View file @ c526f5d2
...@@ -128,6 +128,7 @@ DO_GDB="" ...@@ -128,6 +128,7 @@ DO_GDB=""
DO_DDD="" DO_DDD=""
DO_CLIENT_GDB="" DO_CLIENT_GDB=""
SLEEP_TIME=2 SLEEP_TIME=2
CHARACTER_SET=latin1_de
DBUSER="" DBUSER=""
while test $# -gt 0; do while test $# -gt 0; do
...@@ -277,6 +278,7 @@ if [ x$SOURCE_DIST = x1 ] ; then ...@@ -277,6 +278,7 @@ if [ x$SOURCE_DIST = x1 ] ; then
MYSQLADMIN="$BASEDIR/client/mysqladmin" MYSQLADMIN="$BASEDIR/client/mysqladmin"
MYSQL="$BASEDIR/client/mysql" MYSQL="$BASEDIR/client/mysql"
LANGUAGE="$BASEDIR/sql/share/english/" LANGUAGE="$BASEDIR/sql/share/english/"
CHARSETSDIR="$BASEDIR/sql/share/charsets"
INSTALL_DB="./install_test_db" INSTALL_DB="./install_test_db"
else else
MYSQLD="$BASEDIR/bin/mysqld" MYSQLD="$BASEDIR/bin/mysqld"
...@@ -287,8 +289,10 @@ else ...@@ -287,8 +289,10 @@ else
if test -d "$BASEDIR/share/mysql/english" if test -d "$BASEDIR/share/mysql/english"
then then
LANGUAGE="$BASEDIR/share/mysql/english/" LANGUAGE="$BASEDIR/share/mysql/english/"
CHARSETSDIR="$BASEDIR/share/mysql/charsets"
else else
LANGUAGE="$BASEDIR/share/english/" LANGUAGE="$BASEDIR/share/english/"
CHARSETSDIR="$BASEDIR/share/charsets"
fi fi
fi fi
...@@ -506,7 +510,9 @@ start_master() ...@@ -506,7 +510,9 @@ start_master()
--datadir=$MASTER_MYDDIR \ --datadir=$MASTER_MYDDIR \
--pid-file=$MASTER_MYPID \ --pid-file=$MASTER_MYPID \
--socket=$MASTER_MYSOCK \ --socket=$MASTER_MYSOCK \
--log=$MASTER_MYLOG --default-character-set=latin1 \ --log=$MASTER_MYLOG \
--character-sets-dir=$CHARSETSDIR \
--default-character-set=$CHARACTER_SET \
--tmpdir=$MYSQL_TMP_DIR \ --tmpdir=$MYSQL_TMP_DIR \
--language=$LANGUAGE \ --language=$LANGUAGE \
--innodb_data_file_path=ibdata1:50M \ --innodb_data_file_path=ibdata1:50M \
...@@ -519,7 +525,8 @@ start_master() ...@@ -519,7 +525,8 @@ start_master()
--datadir=$MASTER_MYDDIR \ --datadir=$MASTER_MYDDIR \
--pid-file=$MASTER_MYPID \ --pid-file=$MASTER_MYPID \
--socket=$MASTER_MYSOCK \ --socket=$MASTER_MYSOCK \
--default-character-set=latin1 \ --character-sets-dir=$CHARSETSDIR \
--default-character-set=$CHARACTER_SET \
--core \ --core \
--tmpdir=$MYSQL_TMP_DIR \ --tmpdir=$MYSQL_TMP_DIR \
--language=$LANGUAGE \ --language=$LANGUAGE \
...@@ -575,7 +582,9 @@ start_slave() ...@@ -575,7 +582,9 @@ start_slave()
--pid-file=$SLAVE_MYPID \ --pid-file=$SLAVE_MYPID \
--port=$SLAVE_MYPORT \ --port=$SLAVE_MYPORT \
--socket=$SLAVE_MYSOCK \ --socket=$SLAVE_MYSOCK \
--log=$SLAVE_MYLOG --default-character-set=latin1 \ --log=$SLAVE_MYLOG \
--character-sets-dir=$CHARSETSDIR \
--default-character-set=$CHARACTER_SET \
--core \ --core \
--tmpdir=$MYSQL_TMP_DIR \ --tmpdir=$MYSQL_TMP_DIR \
--language=$LANGUAGE \ --language=$LANGUAGE \
......
sql/share/charsets/Index
View file @ c526f5d2
# sql/share/charsets/Index # sql/share/charsets/Index
# #
# This file lists all of the available character sets. # This file lists all of the available character sets. Please keep this
# file sorted by character set number.
big5 1 big5 1
...@@ -34,3 +35,4 @@ croat 27 ...@@ -34,3 +35,4 @@ croat 27
gbk 28 gbk 28
cp1257 29 cp1257 29
latin5 30 latin5 30
latin1_de 31
strings/ctype-latin1_de.c 0 → 100644
View file @ c526f5d2
/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
MA 02111-1307, USA */
/*
* This file is the latin1 character set with German sorting
*
* The modern sort order is used, where:
*
* 'ä' -> "ae"
* 'ö' -> "oe"
* 'ü' -> "ue"
* 'ß' -> "ss"
*/
/*
* This comment is parsed by configure to create ctype.c,
* so don't change it unless you know what you are doing.
*
* .configure. strxfrm_multiply_latin1_de=2
*/
#include <global.h>
#include "m_string.h"
#include "m_ctype.h"
uchar ctype_latin1_de[] = {
0,
32, 32, 32, 32, 32, 32, 32, 32, 32, 40, 40, 40, 40, 40, 32, 32,
32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32,
72, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
132,132,132,132,132,132,132,132,132,132, 16, 16, 16, 16, 16, 16,
16,129,129,129,129,129,129, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 16, 16, 16, 16, 16,
16,130,130,130,130,130,130, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 16, 16, 16, 16, 32,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
72, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 16, 1, 1, 1, 1, 1, 1, 1, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 16, 2, 2, 2, 2, 2, 2, 2, 2
};
uchar to_lower_latin1_de[] = {
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
64, 97, 98, 99,100,101,102,103,104,105,106,107,108,109,110,111,
112,113,114,115,116,117,118,119,120,121,122, 91, 92, 93, 94, 95,
96, 97, 98, 99,100,101,102,103,104,105,106,107,108,109,110,111,
112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,
128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,
144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,
160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,
176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,
224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,
240,241,242,243,244,245,246,215,248,249,250,251,252,253,254,223,
224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,
240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255
};
uchar to_upper_latin1_de[] = {
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95,
96, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90,123,124,125,126,127,
128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,
144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,
160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,
176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,
192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,
208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,
192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,
208,209,210,211,212,213,214,247,216,217,218,219,220,221,222,255
};
/*
* This is a simple latin1 mapping table, which maps all accented
* characters to their non-accented equivalents. Note: in this
* table, 'ä' is mapped to 'A', 'ÿ' is mapped to 'Y', etc. - all
* accented characters are treated the same way.
*
* SPECIAL NOTE: 'ß' (the sz ligature), which isn't really an
* accented 's', is mapped to 'S', to simplify the sorting
* functions.
*/
uchar sort_order_latin1_de[] = {
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95,
96, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90,123,124,125,126,127,
128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,
144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,
160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,
176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,
65, 65, 65, 65, 65, 65, 92, 67, 69, 69, 69, 69, 73, 73, 73, 73,
68, 78, 79, 79, 79, 79, 79,215,216, 85, 85, 85, 85, 89,222, 83,
65, 65, 65, 65, 65, 65, 92, 67, 69, 69, 69, 69, 73, 73, 73, 73,
68, 78, 79, 79, 79, 79, 79,247,216, 85, 85, 85, 85, 89,222, 89
};
#define L1_AE 196
#define L1_ae 228
#define L1_OE 214
#define L1_oe 246
#define L1_UE 220
#define L1_ue 252
#define L1_ss 223
int my_strnncoll_latin1_de(const uchar * s1, int len1,
const uchar * s2, int len2)
{
const uchar *e1 = s1 + len1;
const uchar *e2 = s2 + len2;
while (s1 < e1 && s2 < e2)
{
/* to_upper is used instead of sort_order, because we don't want
* 'Ä' to match "ÁE", only "AE". This couples the to_upper and
* sort_order tables together, but that is acceptable. */
uchar c1 = to_upper_latin1_de[*s1];
uchar c2 = to_upper_latin1_de[*s2];
if (c1 != c2)
{
switch (c1)
{
#define CHECK_S1_COMBO(fst, snd, accent) \
/* Invariant: c1 == fst == sort_order_latin1_de[accent] && c1 != c2 */ \
if (c2 == accent) \
{ \
if (s1 + 1 < e1) \
{ \
if (to_upper_latin1_de[*(s1 + 1)] == snd) \
{ \
/* They are equal (e.g., "Ae" == 'ä') */ \
s1 += 2; \
s2 += 1; \
} \
else \
{ \
int diff = sort_order_latin1_de[*(s1 + 1)] - snd; \
if (diff) \
return diff; \
else \
/* Comparison between, e.g., "AÉ" and 'Ä' */ \
return 1; \
} \
} \
else \
return -1; \
} \
else \
/* The following should work even if c2 is [ÄÖÜß] */ \
return fst - sort_order_latin1_de[c2]
case 'A':
CHECK_S1_COMBO('A', 'E', L1_AE);
break;
case 'O':
CHECK_S1_COMBO('O', 'E', L1_OE);
break;
case 'U':
CHECK_S1_COMBO('U', 'E', L1_UE);
break;
case 'S':
CHECK_S1_COMBO('S', 'S', L1_ss);
break;
#define CHECK_S2_COMBO(fst, snd) \
/* Invariant: sort_order_latin1_de[c1] == fst && c1 != c2 */ \
if (c2 == fst) \
{ \
if (s2 + 1 < e2) \
{ \
if (to_upper_latin1_de[*(s2 + 1)] == snd) \
{ \
/* They are equal (e.g., 'ä' == "Ae") */ \
s1 += 1; \
s2 += 2; \
} \
else \
{ \
int diff = sort_order_latin1_de[*(s1 + 1)] - snd; \
if (diff) \
return diff; \
else \
/* Comparison between, e.g., 'Ä' and "AÉ" */ \
return -1; \
} \
} \
else \
return 1; \
} \
else \
/* The following should work even if c2 is [ÄÖÜß] */ \
return fst - sort_order_latin1_de[c2]
case L1_AE:
CHECK_S2_COMBO('A', 'E');
break;
case L1_OE:
CHECK_S2_COMBO('O', 'E');
break;
case L1_UE:
CHECK_S2_COMBO('U', 'E');
break;
case L1_ss:
CHECK_S2_COMBO('S', 'S');
break;
default:
switch (c2) {
case L1_AE:
case L1_OE:
case L1_UE:
case L1_ss:
/* Make sure these do not match (e.g., "Ä" != "Á") */
return sort_order_latin1_de[c1] - sort_order_latin1_de[c2];
break;
default:
if (sort_order_latin1_de[*s1] != sort_order_latin1_de[*s2])
return sort_order_latin1_de[*s1] - sort_order_latin1_de[*s2];
++s1;
++s2;
break;
}
break;
#undef CHECK_S1_COMBO
#undef CHECK_S2_COMBO
}
}
else
{
/* In order to consistently treat "ae" == 'ä', but to NOT allow
* "aé" == 'ä', we must look ahead here to ensure that the second
* letter in a combo really is the unaccented 'e' (or 's' for
* "ss") and is not an accented character with the same sort_order. */
++s1;
++s2;
if (s1 < e1 && s2 < e2)
{
switch (c1)
{
case 'A':
case 'O':
case 'U':
if (sort_order_latin1_de[*s1] == 'E' &&
to_upper_latin1_de[*s1] != 'E' &&
to_upper_latin1_de[*s2] == 'E')
/* Comparison between, e.g., "AÉ" and "AE" */
return 1;
if (sort_order_latin1_de[*s2] == 'E' &&
to_upper_latin1_de[*s2] != 'E' &&
to_upper_latin1_de[*s1] == 'E')
/* Comparison between, e.g., "AE" and "AÉ" */
return -1;
break;
case 'S':
if (sort_order_latin1_de[*s1] == 'S' &&
to_upper_latin1_de[*s1] != 'S' &&
to_upper_latin1_de[*s2] == 'S')
/* Comparison between, e.g., "Sß" and "SS" */
return 1;
if (sort_order_latin1_de[*s2] == 'S' &&
to_upper_latin1_de[*s2] != 'S' &&
to_upper_latin1_de[*s1] == 'S')
/* Comparison between, e.g., "SS" and "Sß" */
return -1;
break;
default:
break;
}
}
}
}
/* A simple test of string lengths won't work -- we test to see
* which string ran out first */
return s1 < e1 ? 1 : s2 < e2 ? -1 : 0;
}
int my_strnxfrm_latin1_de(uchar * dest, const uchar * src, int len, int srclen)
{
const uchar *dest_orig = dest;
const uchar *de = dest + len;
const uchar *se = src + srclen;
while (src < se && dest < de)
{
switch (*src)
{
case L1_AE:
case L1_ae:
*dest++ = 'A';
if (dest < de)
*dest++ = 'E';
break;
case L1_OE:
case L1_oe:
*dest++ = 'O';
if (dest < de)
*dest++ = 'E';
break;
case L1_UE:
case L1_ue:
*dest++ = 'U';
if (dest < de)
*dest++ = 'E';
break;
case L1_ss:
*dest++ = 'S';
if (dest < de)
*dest++ = 'S';
break;
default:
*dest++ = sort_order_latin1_de[*src];
break;
}
++src;
}
return dest - dest_orig;
}
int my_strcoll_latin1_de(const uchar * s1, const uchar * s2)
{
/* XXX QQ: This should be fixed to not call strlen */
return my_strnncoll_latin1_de(s1, strlen(s1), s2, strlen(s2));
}
int my_strxfrm_latin1_de(uchar * dest, const uchar * src, int len)
{
/* XXX QQ: This should be fixed to not call strlen */
return my_strnxfrm_latin1_de(dest, src, len, strlen(src));
}
/*
* Calculate min_str and max_str that ranges a LIKE string.
* Arguments:
* ptr IN: Pointer to LIKE string.
* ptr_length IN: Length of LIKE string.
* escape IN: Escape character in LIKE. (Normally '\').
* No escape characters should appear in min_str or max_str
* res_length IN: Length of min_str and max_str.
* min_str IN/OUT: Smallest case sensitive string that ranges LIKE.
* Should be space padded to res_length.
* max_str IN/OUT: Largest case sensitive string that ranges LIKE.
* Normally padded with the biggest character sort value.
* min_length OUT: Length of min_str without space padding.
* max_length OUT: Length of max_str without space padding.
*
* The function should return 0 if ok and 1 if the LIKE string can't be
* optimized !
*/
#define min_sort_char ((char) 0)
#define max_sort_char ((char) 255)
#define wild_one '_'
#define wild_many '%'
my_bool my_like_range_latin1_de(const char *ptr, uint ptr_length,
pchar escape, uint res_length,
char *min_str, char *max_str,
uint *min_length, uint *max_length)
{
const char *end = ptr + ptr_length;
char *min_org = min_str;
char *min_end = min_str + res_length;
for (; ptr != end && min_str != min_end; ++ptr)
{
if (*ptr == escape && ptr + 1 != end)
{
++ptr; /* Skip escape */
*min_str++ = *max_str++ = *ptr;
continue;
}
if (*ptr == wild_one) /* '_' in SQL */
{
*min_str++ = min_sort_char;
*max_str++ = max_sort_char;
continue;
}
if (*ptr == wild_many) /* '%' in SQL */
{
*min_length = (uint)(min_str - min_org);
*max_length = res_length;
do {
*min_str++ = min_sort_char;
*max_str++ = max_sort_char;
} while (min_str != min_end);
return 0;
}
*min_str++ = *max_str++ = *ptr;
}
*min_length = *max_length = (uint) (min_str - min_org);
while (min_str != min_end)
{
*min_str++ = ' '; /* For proper key compression */
*max_str++ = ' ';
}
return 0;
}
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