diff options
Diffstat (limited to 'dep/mysqllite/strings/my_strchr.c')
| -rw-r--r-- | dep/mysqllite/strings/my_strchr.c | 104 |
1 files changed, 0 insertions, 104 deletions
diff --git a/dep/mysqllite/strings/my_strchr.c b/dep/mysqllite/strings/my_strchr.c deleted file mode 100644 index 08fa51ba17a..00000000000 --- a/dep/mysqllite/strings/my_strchr.c +++ /dev/null @@ -1,104 +0,0 @@ -/* Copyright (C) 2005 MySQL AB - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; version 2 of the License. - - This program 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 General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ - -#include <my_global.h> -#include "m_string.h" -#include "m_ctype.h" - -#define NEQ(A, B) ((A) != (B)) -#define EQU(A, B) ((A) == (B)) - -/** - Macro for the body of the string scanning. - - @param CS The character set of the string - @param STR Pointer to beginning of string - @param END Pointer to one-after-end of string - @param ACC Pointer to beginning of accept (or reject) string - @param LEN Length of accept (or reject) string - @param CMP is a function-like for doing the comparison of two characters. - */ - -#define SCAN_STRING(CS, STR, END, ACC, LEN, CMP) \ - do { \ - uint mbl; \ - const char *ptr_str, *ptr_acc; \ - const char *acc_end= (ACC) + (LEN); \ - for (ptr_str= (STR) ; ptr_str < (END) ; ptr_str+= mbl) \ - { \ - mbl= my_mbcharlen((CS), *(uchar*)ptr_str); \ - if (mbl < 2) \ - { \ - DBUG_ASSERT(mbl == 1); \ - for (ptr_acc= (ACC) ; ptr_acc < acc_end ; ++ptr_acc) \ - if (CMP(*ptr_acc, *ptr_str)) \ - goto end; \ - } \ - } \ -end: \ - return (size_t) (ptr_str - (STR)); \ - } while (0) - - -/* - my_strchr(cs, str, end, c) returns a pointer to the first place in - str where c (1-byte character) occurs, or NULL if c does not occur - in str. This function is multi-byte safe. - TODO: should be moved to CHARSET_INFO if it's going to be called - frequently. -*/ - -char *my_strchr(CHARSET_INFO *cs, const char *str, const char *end, - pchar c) -{ - uint mbl; - while (str < end) - { - mbl= my_mbcharlen(cs, *(uchar *)str); - if (mbl < 2) - { - if (*str == c) - return((char *)str); - str++; - } - else - str+= mbl; - } - return(0); -} - -/** - Calculate the length of the initial segment of 'str' which consists - entirely of characters not in 'reject'. - - @note The reject string points to single-byte characters so it is - only possible to find the first occurrence of a single-byte - character. Multi-byte characters in 'str' are treated as not - matching any character in the reject string. - - @todo should be moved to CHARSET_INFO if it's going to be called - frequently. - - @internal The implementation builds on the assumption that 'str' is long, - while 'reject' is short. So it compares each character in string - with the characters in 'reject' in a tight loop over the characters - in 'reject'. -*/ - -size_t my_strcspn(CHARSET_INFO *cs, const char *str, const char *str_end, - const char *reject) -{ - SCAN_STRING(cs, str, str_end, reject, strlen(reject), EQU); -} |