globbing.c
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/** \file globbing.c */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include "physfs.h"
#include "globbing.h"
/**
* Please see globbing.h for details.
*
* License: this code is public domain. I make no warranty that it is useful,
* correct, harmless, or environmentally safe.
*
* This particular file may be used however you like, including copying it
* verbatim into a closed-source project, exploiting it commercially, and
* removing any trace of my name from the source (although I hope you won't
* do that). I welcome enhancements and corrections to this file, but I do
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* not require you to send me patches if you make changes. This code has
* NO WARRANTY.
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* Unless otherwise stated, the rest of PhysicsFS falls under the zlib license.
* Please see LICENSE in the root of the source tree.
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*
* \author Ryan C. Gordon.
*/
static int matchesPattern(const char *fname, const char *wildcard,
int caseSensitive)
{
char x, y;
const char *fnameptr = fname;
const char *wildptr = wildcard;
while ((*wildptr) && (*fnameptr))
{
y = *wildptr;
if (y == '*')
{
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do
{
wildptr++; /* skip multiple '*' in a row... */
} while (*wildptr == '*');
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y = (caseSensitive) ? *wildptr : (char) tolower(*wildptr);
while (1)
{
x = (caseSensitive) ? *fnameptr : (char) tolower(*fnameptr);
if ((!x) || (x == y))
break;
else
fnameptr++;
} /* while */
} /* if */
else if (y == '?')
{
wildptr++;
fnameptr++;
} /* else if */
else
{
if (caseSensitive)
x = *fnameptr;
else
{
x = tolower(*fnameptr);
y = tolower(y);
} /* if */
wildptr++;
fnameptr++;
if (x != y)
return(0);
} /* else */
} /* while */
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while (*wildptr == '*')
wildptr++;
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return(*fnameptr == *wildptr);
} /* matchesPattern */
char **PHYSFSEXT_enumerateFilesWildcard(const char *dir, const char *wildcard,
int caseSensitive)
{
char **rc = PHYSFS_enumerateFiles(dir);
char **i = rc;
char **j;
while (*i != NULL)
{
if (matchesPattern(*i, wildcard, caseSensitive))
i++;
else
{
/* FIXME: This counts on physfs's allocation method not changing! */
free(*i);
for (j = i; *j != NULL; j++)
j[0] = j[1];
} /* else */
} /* for */
return(rc);
} /* PHYSFSEXT_enumerateFilesWildcard */
#ifdef TEST_PHYSFSEXT_ENUMERATEFILESWILDCARD
int main(int argc, char **argv)
{
int rc;
char **flist;
char **i;
if (argc != 3)
{
printf("USAGE: %s <pattern> <caseSen>\n"
" where <caseSen> is 1 or 0.\n", argv[0]);
return(1);
} /* if */
if (!PHYSFS_init(argv[0]))
{
fprintf(stderr, "PHYSFS_init(): %s\n", PHYSFS_getLastError());
return(1);
} /* if */
if (!PHYSFS_addToSearchPath(".", 1))
{
fprintf(stderr, "PHYSFS_addToSearchPath(): %s\n", PHYSFS_getLastError());
PHYSFS_deinit();
return(1);
} /* if */
flist = PHYSFSEXT_enumerateFilesWildcard("/", argv[1], atoi(argv[2]));
rc = 0;
for (i = flist; *i; i++)
{
printf("%s\n", *i);
rc++;
} /* for */
printf("\n total %d files.\n\n", rc);
PHYSFS_freeList(flist);
PHYSFS_deinit();
return(0);
} /* main */
#endif
/* end of globbing.c ... */