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-rw-r--r--mysys/mf_casecnv.c254
1 files changed, 19 insertions, 235 deletions
diff --git a/mysys/mf_casecnv.c b/mysys/mf_casecnv.c
index c037cbd0f16..631db18b1ed 100644
--- a/mysys/mf_casecnv.c
+++ b/mysys/mf_casecnv.c
@@ -28,269 +28,53 @@
#include <m_string.h>
#endif
-/*
- Upcase string
-
- SYNOPSIS
- str IN/OUT String to upcase
-
- RETURN VALUE
- none
- DESCRIPTION
- Function changes input parameter so all chars it consist from
- are replaced with matching one in upper case.
- String should be writable with exception read-only empty string
- constant is handled correctly.
-*/
-
-
-void caseup_str(my_string str)
-{
-#ifdef USE_MB
- if (use_mb(default_charset_info))
- {
- register uint32 l;
- register char *end=str+strlen(str);
- while (*str)
- {
- if ((l=my_ismbchar(default_charset_info, str,end))) str+=l;
- else *str=toupper(*str),++str;
- }
- }
- else
-#endif
- while (*str!=0) /* iterate till the end of string */
- {
- *str= toupper(*str);
- str++;
- }
-} /* caseup_str */
-
-
-/*
- Downcase string
-
- SYNOPSIS
- str IN/OUT String to downcase
-
- RETURN VALUE
- none
- DESCRIPTION
- Function changes input parameter so all chars it consist from
- are replaced with matching one in lower case.
- String should be writable with exception read-only empty string
- constant is handled correctly.
-*/
-
-
-void casedn_str(my_string str)
-{
-#ifdef USE_MB
- if (use_mb(default_charset_info))
- {
- register uint32 l;
- register char *end=str+strlen(str);
- while (*str)
- {
- if ((l=my_ismbchar(default_charset_info, str,end))) str+=l;
- else *str=tolower(*str),++str;
- }
- }
- else
-#endif
- while (*str!=0) /* iterate till the end of string */
- {
- *str= tolower(*str);
- str++;
- }
-} /* casedn_str */
-
-
- /* to uppercase */
-
-void caseup(my_string str, uint length)
-{
-#ifdef USE_MB
- if (use_mb(default_charset_info))
- {
- register uint32 l;
- register char *end=str+length;
- while (str<end)
- {
- if ((l=my_ismbchar(default_charset_info, str,end))) str+=l;
- else *str=toupper(*str),++str;
- }
- }
- else
-#endif
- for ( ; length>0 ; length--, str++)
- *str= toupper(*str);
-} /* caseup */
-
- /* to lowercase */
-
-void casedn(my_string str, uint length)
-{
-#ifdef USE_MB
- if (use_mb(default_charset_info))
- {
- register uint32 l;
- register char *end=str+length;
- while (str<end)
- {
- if ((l=my_ismbchar(default_charset_info, str,end))) str+=l;
- else *str=tolower(*str),++str;
- }
- }
- else
-#endif
- for ( ; length>0 ; length--, str++)
- *str= tolower(*str);
-} /* casedn */
/* to sort-string that can be compared to get text in order */
-void case_sort(my_string str, uint length)
+void case_sort(CHARSET_INFO *cs, my_string str, uint length)
{
+ register uchar *map=cs->sort_order;
+
for ( ; length>0 ; length--, str++)
- *str= (char) my_sort_order[(uchar) *str];
+ *str= (char) map[(uchar) *str];
} /* case_sort */
- /* find string in another with no case_sensivity */
-
-/* ToDo: This function should be modified to support multibyte charset.
- However it is not used untill 3.23.5.
- Wei He (hewei@mail.ied.ac.cn)
-*/
-
-my_string my_strcasestr(const char *str, const char *search)
-{
- uchar *i,*j,*pos;
-
- pos=(uchar*) str;
-skipp:
- while (*pos != '\0')
- {
- if (toupper((uchar) *pos++) == toupper((uchar) *search))
- {
- i=(uchar*) pos; j=(uchar*) search+1;
- while (*j)
- if (toupper(*i++) != toupper(*j++)) goto skipp;
- return ((char*) pos-1);
- }
- }
- return ((my_string) 0);
-} /* strcstr */
-
-
- /* compare strings without regarding to case */
-
-int my_strcasecmp(const char *s, const char *t)
-{
-#ifdef USE_MB
- if (use_mb(default_charset_info))
- {
- register uint32 l;
- register const char *end=s+strlen(s);
- while (s<end)
- {
- if ((l=my_ismbchar(default_charset_info, s,end)))
- {
- while (l--)
- if (*s++ != *t++) return 1;
- }
- else if (my_ismbhead(default_charset_info, *t)) return 1;
- else if (toupper((uchar) *s++) != toupper((uchar) *t++)) return 1;
- }
- return *t;
- }
- else
-#endif
- {
- while (toupper((uchar) *s) == toupper((uchar) *t++))
- if (!*s++) return 0;
- return ((int) toupper((uchar) s[0]) - (int) toupper((uchar) t[-1]));
- }
-}
-
-
-int my_casecmp(const char *s, const char *t, uint len)
-{
-#ifdef USE_MB
- if (use_mb(default_charset_info))
- {
- register uint32 l;
- register const char *end=s+len;
- while (s<end)
- {
- if ((l=my_ismbchar(default_charset_info, s,end)))
- {
- while (l--)
- if (*s++ != *t++) return 1;
- }
- else if (my_ismbhead(default_charset_info, *t)) return 1;
- else if (toupper((uchar) *s++) != toupper((uchar) *t++)) return 1;
- }
- return 0;
- }
- else
-#endif
- {
- while (len-- != 0 && toupper(*s++) == toupper(*t++)) ;
- return (int) len+1;
- }
-}
-
-
-int my_strsortcmp(const char *s, const char *t)
-{
-#ifdef USE_STRCOLL
- if (use_strcoll(default_charset_info))
- return my_strcoll(default_charset_info, (uchar *)s, (uchar *)t);
- else
-#endif
- {
- while (my_sort_order[(uchar) *s] == my_sort_order[(uchar) *t++])
- if (!*s++) return 0;
- return ((int) my_sort_order[(uchar) s[0]] -
- (int) my_sort_order[(uchar) t[-1]]);
- }
-}
-int my_sortcmp(const char *s, const char *t, uint len)
+int my_sortcmp(CHARSET_INFO *cs, const char *s, const char *t, uint len)
{
#ifdef USE_STRCOLL
- if (use_strcoll(default_charset_info))
- return my_strnncoll(default_charset_info,
- (uchar *)s, len, (uchar *)t, len);
+ if (use_strcoll(cs))
+ return my_strnncoll(cs,(uchar *)s, len, (uchar *)t, len);
else
#endif
{
+ register uchar *map=cs->sort_order;
while (len--)
{
- if (my_sort_order[(uchar) *s++] != my_sort_order[(uchar) *t++])
- return ((int) my_sort_order[(uchar) s[-1]] -
- (int) my_sort_order[(uchar) t[-1]]);
+ if (map[(uchar) *s++] != map[(uchar) *t++])
+ return ((int) map[(uchar) s[-1]] - (int) map[(uchar) t[-1]]);
}
return 0;
}
}
-int my_sortncmp(const char *s, uint s_len, const char *t, uint t_len)
+int my_sortncmp(CHARSET_INFO *cs,
+ const char *s, uint s_len,
+ const char *t, uint t_len)
{
#ifdef USE_STRCOLL
- if (use_strcoll(default_charset_info))
- return my_strnncoll(default_charset_info,
- (uchar *)s, s_len, (uchar *)t, t_len);
+ if (use_strcoll(cs))
+ return my_strnncoll(cs, (uchar *)s, s_len, (uchar *)t, t_len);
else
#endif
{
uint len= min(s_len,t_len);
+ register uchar *map=cs->sort_order;
+
while (len--)
{
- if (my_sort_order[(uchar) *s++] != my_sort_order[(uchar) *t++])
- return ((int) my_sort_order[(uchar) s[-1]] -
- (int) my_sort_order[(uchar) t[-1]]);
+ if (map[(uchar) *s++] != map[(uchar) *t++])
+ return ((int) map[(uchar) s[-1]] - (int) map[(uchar) t[-1]]);
}
return (int) (s_len - t_len);
}
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