mf_wfile.c
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:3k
- /* Copyright (C) 2000 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; either version 2 of the License, or
- (at your option) any later version.
- 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 */
- /* Functions for finding files with wildcards */
- /*
- The following file-name-test is supported:
- - "name [[,] name...] ; Matches any of used filenames.
- Each name can have "*" and/or "?"
- wild-cards.
- - [wildspec [,]] !wildspec2 ; File that matches wildspec and not
- wildspec2.
- */
- #include "mysys_priv.h"
- #include <m_string.h>
- /* Store wildcard-string in a easyer format */
- WF_PACK *wf_comp(my_string str)
- {
- uint ant;
- int not_pos;
- register my_string pos;
- my_string buffer;
- WF_PACK *ret;
- DBUG_ENTER("wf_comp");
- not_pos= -1; /* Skip space and '!' in front */
- while (*str == ' ')
- str++;
- if (*str == '!')
- {
- not_pos=0;
- while (*++str == ' ') {};
- }
- if (*str == 0) /* Empty == everything */
- DBUG_RETURN((WF_PACK *) NULL);
- ant=1; /* Count filespecs */
- for (pos=str ; *pos ; pos++)
- ant+= test(*pos == ' ' || *pos == ',');
- if ((ret= (WF_PACK*) my_malloc((uint) ant*(sizeof(my_string*)+2)+
- sizeof(WF_PACK)+ (uint) strlen(str)+1,
- MYF(MY_WME)))
- == 0)
- DBUG_RETURN((WF_PACK *) NULL);
- ret->wild= (my_string*) (ret+1);
- buffer= (my_string) (ret->wild+ant);
- ant=0;
- for (pos=str ; *pos ; str= pos)
- {
- ret->wild[ant++]=buffer;
- while (*pos != ' ' && *pos != ',' && *pos != '!' && *pos)
- *buffer++ = *pos++;
- *buffer++ = ' ';
- while (*pos == ' ' || *pos == ',' || *pos == '!' )
- if (*pos++ == '!' && not_pos <0)
- not_pos=(int) ant;
- }
- ret->wilds=ant;
- if (not_pos <0)
- ret->not_pos=ant;
- else
- ret->not_pos=(uint) not_pos;
- DBUG_PRINT("exit",("antal: %d not_pos: %d",ret->wilds,ret->not_pos));
- DBUG_RETURN(ret);
- } /* wf_comp */
- /* Test if a given filename is matched */
- int wf_test(register WF_PACK *wf_pack, register const char *name)
- {
- reg2 uint i;
- reg3 uint not_pos;
- DBUG_ENTER("wf_test");
- if (! wf_pack || wf_pack->wilds == 0)
- DBUG_RETURN(0); /* Everything goes */
- not_pos=wf_pack->not_pos;
- for (i=0 ; i < not_pos; i++)
- if (wild_compare(name,wf_pack->wild[i],0) == 0)
- goto found;
- if (i)
- DBUG_RETURN(1); /* No-match */
- found:
- /* Test that it isn't in not-list */
- for (i=not_pos ; i < wf_pack->wilds; i++)
- if (wild_compare(name,wf_pack->wild[i],0) == 0)
- DBUG_RETURN(1);
- DBUG_RETURN(0);
- } /* wf_test */
- /* We need this because program don't know with malloc we used */
- void wf_end(WF_PACK *buffer)
- {
- DBUG_ENTER("wf_end");
- if (buffer)
- my_free((gptr) buffer,MYF(0));
- DBUG_VOID_RETURN;
- } /* wf_end */