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123 lines
4.0 KiB
C
123 lines
4.0 KiB
C
/* Copyright (C) 2010-2020 The RetroArch team
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*
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* ---------------------------------------------------------------------------------------
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* The following license statement only applies to this file (compat_fnmatch.c).
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* ---------------------------------------------------------------------------------------
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*
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* Permission is hereby granted, free of charge,
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* to any person obtaining a copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software,
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* and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <stddef.h>
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#include <compat/fnmatch.h>
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/* Implemnentation of fnmatch(3) so it can be
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* distributed to non *nix platforms.
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*
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* No flags are implemented ATM.
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* We don't use them. Add flags as needed. */
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int rl_fnmatch(const char *pattern, const char *string, int flags)
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{
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int rv;
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const char *c = NULL;
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int charmatch = 0;
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for (c = pattern; *c != '\0'; c++)
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{
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/* String ended before pattern */
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if ((*c != '*') && (*string == '\0'))
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return FNM_NOMATCH;
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switch (*c)
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{
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/* Match any number of unknown chars */
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case '*':
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/* Find next node in the pattern
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* ignoring multiple asterixes
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*/
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do {
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c++;
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if (*c == '\0')
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return 0;
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} while (*c == '*');
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/* Match the remaining pattern
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* ignoring more and more characters. */
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do {
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/* We reached the end of the string without a
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* match. There is a way to optimize this by
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* calculating the minimum chars needed to
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* match the remaining pattern but I don't
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* think it is worth the work ATM.
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*/
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if (*string == '\0')
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return FNM_NOMATCH;
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rv = rl_fnmatch(c, string, flags);
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string++;
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} while (rv != 0);
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return 0;
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/* Match char from list */
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case '[':
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charmatch = 0;
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for (c++; *c != ']'; c++)
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{
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/* Bad format */
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if (*c == '\0')
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return FNM_NOMATCH;
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/* Match already found */
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if (charmatch)
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continue;
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if (*c == *string)
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charmatch = 1;
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}
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/* No match in list */
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if (!charmatch)
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return FNM_NOMATCH;
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string++;
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break;
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/* Has any character */
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case '?':
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string++;
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break;
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/* Match following character verbatim */
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case '\\':
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c++;
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/* Dangling escape at end of pattern.
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* FIXME: Was c == '\0' (makes no sense).
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* Not sure if c == NULL or *c == '\0'
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* is intended. Assuming *c due to c++ right before. */
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if (*c == '\0')
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return FNM_NOMATCH;
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default:
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if (*c != *string)
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return FNM_NOMATCH;
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string++;
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}
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}
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/* End of string and end of pattend */
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if (*string == '\0')
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return 0;
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return FNM_NOMATCH;
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}
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