wildmatch.c
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/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 2011 Free Software Foundation, Inc.
GNU Mailutils 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 3, or (at your option)
any later version.
GNU Mailutils 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 GNU Mailutils. If not, see <http://www.gnu.org/licenses/>. */
#include <config.h>
#include <string.h>
#include <mailutils/types.h>
#include <mailutils/imaputil.h>
/* Match STRING against the IMAP4 wildcard pattern PATTERN. */
#define WILD_FALSE 0
#define WILD_TRUE 1
#define WILD_ABORT 2
int
_wild_match (const char *pat, const char *name, char delim)
{
while (pat && *pat)
{
if (*name == 0 && *pat != '*')
return WILD_ABORT;
switch (*pat)
{
case '*':
while (*++pat == '*')
;
if (*pat == 0)
return WILD_TRUE;
while (*name)
{
int res = _wild_match (pat, name++, delim);
if (res != WILD_FALSE)
return res;
}
return WILD_ABORT;
case '%':
while (*++pat == '%')
;
if (*pat == 0)
return strchr (name, delim) ? WILD_FALSE : WILD_TRUE;
while (*name && *name != delim)
{
int res = _wild_match (pat, name++, delim);
if (res != WILD_FALSE)
return res;
}
return _wild_match (pat, name, delim);
default:
if (*pat != *name)
return WILD_FALSE;
pat++;
name++;
}
}
return *name == 0;
}
int
mu_imap_wildmatch (const char *pattern, const char *name, int delim)
{
return _wild_match (pattern, name, delim) != WILD_TRUE;
}