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// $Id: listparser.hc 2037 2005-04-24 20:23:11Z ensc $ --*- c -*--
// Copyright (C) 2004 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
//
// 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.
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#define TONUMBER_uint64(S,E,B) strtoll(S,E,B)
#define TONUMBER_uint32(S,E,B) strtol (S,E,B)
#define ISNUMBER(TYPE,SHORT) \
static inline ALWAYSINLINE bool \
isNumber_##SHORT(char const **str,size_t *len,TYPE *res,char end_chr) \
{ \
char *err_ptr; \
if (**str=='^') { \
*res = ((TYPE)(1)) << TONUMBER_##SHORT(++*str, &err_ptr, 0); \
if (len) --*len; \
} \
else \
*res = TONUMBER_##SHORT(*str, &err_ptr, 0); \
return err_ptr>*str && *err_ptr==end_chr; \
}
#define LISTPARSER(TYPE,SHORT) \
ISNUMBER(TYPE,SHORT) \
int \
utilvserver_listparser_ ## SHORT(char const *str, size_t len, \
char const **err_ptr, \
size_t *err_len, \
TYPE * const flag, \
TYPE * const mask, \
TYPE (*func)(char const *, \
size_t, bool *)) \
{ \
if (len==0) len = strlen(str); \
for (;len>0;) { \
char const *ptr = strchr(str, ','); \
size_t cnt; \
TYPE tmp = 0; \
bool is_neg = false; \
bool failed = false; \
\
while (mask!=0 && len>0 && (*str=='!' || *str=='~')) { \
is_neg = !is_neg; \
++str; \
--len; \
} \
\
cnt = ptr ? (size_t)(ptr-str) : len; \
if (cnt>=len) { cnt=len; len=0; } \
else len-=(cnt+1); \
\
if (cnt==0) \
failed = true; \
else if (mask!=0 && \
(strncasecmp(str,"all",cnt)==0 || \
strncasecmp(str,"any",cnt)==0)) \
tmp = ~(TYPE)(0); \
else if (mask!=0 && strncasecmp(str,"none",cnt)==0) {} \
else if (!isNumber_##SHORT(&str, &cnt, &tmp, str[cnt])) \
tmp = (*func)(str,cnt, &failed); \
\
if (!failed) { \
if (!is_neg) *flag |= tmp; \
else *flag &= ~tmp; \
if (mask!=0) *mask |= tmp; \
} \
else { \
if (err_ptr) *err_ptr = str; \
if (err_len) *err_len = cnt; \
return -1; \
} \
\
if (ptr==0) break; \
str = ptr+1; \
} \
\
if (err_ptr) *err_ptr = 0; \
if (err_len) *err_len = 0; \
return 0; \
}
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