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author | Alexander Barkov <bar@mysql.com> | 2010-07-26 10:47:03 +0400 |
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committer | Alexander Barkov <bar@mysql.com> | 2010-07-26 10:47:03 +0400 |
commit | fc74792a6bc85a41fe4bbe134b1f16ce66d2896f (patch) | |
tree | 41d6d14cab146c825f7a93b3ae13152d728b7a2c /strings/ctype-sjis.c | |
parent | d6415dc8cd013b636bff3a69a903abd2da16886b (diff) | |
parent | e57a9d6fe035df7d200b90c518256b68b6a9fc49 (diff) | |
download | mariadb-git-fc74792a6bc85a41fe4bbe134b1f16ce66d2896f.tar.gz |
Merging from mysql-5.1-bugteam
Diffstat (limited to 'strings/ctype-sjis.c')
-rw-r--r-- | strings/ctype-sjis.c | 86 |
1 files changed, 3 insertions, 83 deletions
diff --git a/strings/ctype-sjis.c b/strings/ctype-sjis.c index 90c76dc3c79..91adf4ebddf 100644 --- a/strings/ctype-sjis.c +++ b/strings/ctype-sjis.c @@ -1179,86 +1179,6 @@ static size_t my_strnxfrm_sjis(CHARSET_INFO *cs __attribute__((unused)), } -/* -** Calculate min_str and max_str that ranges a LIKE string. -** Arguments: -** ptr Pointer to LIKE string. -** ptr_length Length of LIKE string. -** escape Escape character in LIKE. (Normally '\'). -** All escape characters should be removed from min_str and max_str -** res_length Length of min_str and max_str. -** min_str Smallest case sensitive string that ranges LIKE. -** Should be space padded to res_length. -** max_str Largest case sensitive string that ranges LIKE. -** Normally padded with the biggest character sort value. -** -** The function should return 0 if ok and 1 if the LIKE string can't be -** optimized ! -*/ - -#define max_sort_char ((char) 255) - -static my_bool my_like_range_sjis(CHARSET_INFO *cs __attribute__((unused)), - const char *ptr,size_t ptr_length, - pbool escape, pbool w_one, pbool w_many, - size_t res_length, - char *min_str,char *max_str, - size_t *min_length,size_t *max_length) -{ - const char *end= ptr + ptr_length; - char *min_org=min_str; - char *min_end=min_str+res_length; - size_t charlen= res_length / cs->mbmaxlen; - - for ( ; ptr < end && min_str < min_end && charlen > 0 ; charlen--) - { - if (ismbchar_sjis(cs, ptr, end)) { - *min_str++ = *max_str++ = *ptr++; - if (min_str < min_end) - *min_str++ = *max_str++ = *ptr++; - continue; - } - if (*ptr == escape && ptr+1 < end) { - ptr++; /* Skip escape */ - if (ismbchar_sjis(cs, ptr, end)) - *min_str++ = *max_str++ = *ptr++; - if (min_str < min_end) - *min_str++ = *max_str++ = *ptr++; - continue; - } - if (*ptr == w_one) { /* '_' in SQL */ - *min_str++ = '\0'; /* This should be min char */ - *max_str++ = max_sort_char; - ptr++; - continue; - } - if (*ptr == w_many) - { /* '%' in SQL */ - /* - Calculate length of keys: - 'a\0\0... is the smallest possible string when we have space expand - a\ff\ff... is the biggest possible string - */ - *min_length= ((cs->state & MY_CS_BINSORT) ? (size_t) (min_str - min_org) : - res_length); - *max_length= res_length; - do - { - *min_str++= 0; - *max_str++= max_sort_char; - } while (min_str < min_end); - return 0; - } - *min_str++ = *max_str++ = *ptr++; - } - - *min_length= *max_length= (size_t) (min_str - min_org); - while (min_str != min_end) - *min_str++= *max_str++= ' '; /* Because if key compression */ - return 0; -} - - /* SJIS->Unicode conversion table */ static uint16 sjis_to_unicode[65536]= { @@ -34231,7 +34151,7 @@ static MY_COLLATION_HANDLER my_collation_ci_handler = my_strnncollsp_sjis, my_strnxfrm_sjis, my_strnxfrmlen_simple, - my_like_range_sjis, + my_like_range_mb, my_wildcmp_mb, /* wildcmp */ my_strcasecmp_8bit, my_instr_mb, @@ -34297,7 +34217,7 @@ CHARSET_INFO my_charset_sjis_japanese_ci= 1, /* mbminlen */ 2, /* mbmaxlen */ 0, /* min_sort_char */ - 255, /* max_sort_char */ + 0xFCFC, /* max_sort_char */ ' ', /* pad char */ 1, /* escape_with_backslash_is_dangerous */ &my_charset_handler, @@ -34329,7 +34249,7 @@ CHARSET_INFO my_charset_sjis_bin= 1, /* mbminlen */ 2, /* mbmaxlen */ 0, /* min_sort_char */ - 255, /* max_sort_char */ + 0xFCFC, /* max_sort_char */ ' ', /* pad char */ 1, /* escape_with_backslash_is_dangerous */ &my_charset_handler, |