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globbing.h
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globbing.h
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#ifndef INCL_PHYSFSEXT_GLOBBING_H
#define INCL_PHYSFSEXT_GLOBBING_H
/** \file globbing.h */
#include "physfs.h"
/**
* \mainpage PhysicsFS globbing
*
* This is an extension to PhysicsFS to let you search for files with basic
* wildcard matching, regardless of what sort of filesystem or archive they
* reside in. It does this by enumerating directories as needed and manually
* locating matching entries.
*
* Usage: Set up PhysicsFS as you normally would, then use
* PHYSFSEXT_enumerateFilesWildcard() when enumerating files. This is just
* like PHYSFS_enumerateFiles(), but it returns a subset that matches your
* wildcard pattern. You must call PHYSFSEXT_freeEnumeration() on the results,
* just PHYSFS_enumerateFiles() would do with PHYSFS_freeList().
*
* 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
* not require you to send me patches if you make changes. This code has
* NO WARRANTY.
*
* Unless otherwise stated, the rest of PhysicsFS falls under the zlib license.
* Please see LICENSE.txt in the source's "docs" directory.
*
* \author Ryan C. Gordon.
*/
#ifdef __cplusplus
extern "C" {
#endif
/**
* \fn char **PHYSFS_enumerateFilesWildcard(const char *dir, const char *wildcard, int caseSensitive)
* \brief Get a file listing of a search path's directory, filtered with a wildcard pattern.
*
* Matching directories are interpolated. That is, if "C:\mydir" is in the
* search path and contains a directory "savegames" that contains "x.sav",
* "y.Sav", and "z.txt", and there is also a "C:\userdir" in the search path
* that has a "savegames" subdirectory with "w.sav", then the following code:
*
* \code
* char **rc = PHYSFS_enumerateFilesWildcard("savegames", "*.sav", 0);
* char **i;
*
* for (i = rc; *i != NULL; i++)
* printf(" * We've got [%s].\n", *i);
*
* PHYSFS_freeList(rc);
* \endcode
*
* ...will print:
*
* \verbatim
* We've got [x.sav].
* We've got [y.Sav].
* We've got [w.sav].\endverbatim
*
* Feel free to sort the list however you like. We only promise there will
* be no duplicates, but not what order the final list will come back in.
*
* Wildcard strings can use the '*' and '?' characters, currently.
* Matches can be case-insensitive if you pass a zero for argument 3.
*
* Don't forget to call PHYSFSEXT_freeEnumerator() with the return value from
* this function when you are done with it. As we use PhysicsFS's allocator
* for this list, you must free it before calling PHYSFS_deinit().
* Do not use PHYSFS_freeList() on the returned value!
*
* \param dir directory in platform-independent notation to enumerate.
* \param wildcard Wildcard pattern to use for filtering.
* \param caseSensitive Zero for case-insensitive matching,
* non-zero for case-sensitive.
* \return Null-terminated array of null-terminated strings.
*
* \sa PHYSFSEXT_freeEnumeration
*/
PHYSFS_DECL char **PHYSFSEXT_enumerateFilesWildcard(const char *dir,
const char *wildcard,
int caseSensitive);
/**
* \fn void PHYSFSEXT_freeEnumeration(char **list)
* \brief Free data returned by PHYSFSEXT_enumerateFilesWildcard
*
* Conceptually, this works like PHYSFS_freeList(), but is used with data
* returned by PHYSFSEXT_enumerateFilesWildcard() only. Be sure to call this
* on any returned data from that function before
*
* \param list Pointer previously returned by
* PHYSFSEXT_enumerateFilesWildcard(). It is safe to pass a
* NULL here.
*
* \sa PHYSFSEXT_enumerateFilesWildcard
*/
PHYSFS_DECL void PHYSFSEXT_freeEnumeration(char **list);
/**
* \fn void PHYSFSEXT_enumerateFilesCallbackWildcard(const char *dir, const char *wildcard, int caseSensitive, PHYSFS_EnumFilesCallback c, void *d);
* \brief Get a file listing of a search path's directory, filtered with a wildcard pattern, using an application-defined callback.
*
* This function is equivalent to PHYSFSEXT_enumerateFilesWildcard(). It
* reports file listings, filtered by a wildcard pattern.
*
* Unlike PHYSFS_enumerateFiles(), this function does not return an array.
* Rather, it calls a function specified by the application once per
* element of the search path:
*
* \code
*
* static void printDir(void *data, const char *origdir, const char *fname)
* {
* printf(" * We've got [%s] in [%s].\n", fname, origdir);
* }
*
* // ...
* PHYSFS_enumerateFilesCallbackWildcard("savegames","*.sav",0,printDir,NULL);
* \endcode
*
* Items sent to the callback are not guaranteed to be in any order whatsoever.
* There is no sorting done at this level, and if you need that, you should
* probably use PHYSFS_enumerateFilesWildcard() instead, which guarantees
* alphabetical sorting. This form reports whatever is discovered in each
* archive before moving on to the next. Even within one archive, we can't
* guarantee what order it will discover data. <em>Any sorting you find in
* these callbacks is just pure luck. Do not rely on it.</em> As this walks
* the entire list of archives, you may receive duplicate filenames.
*
* Wildcard strings can use the '*' and '?' characters, currently.
* Matches can be case-insensitive if you pass a zero for argument 3.
*
* \param dir Directory, in platform-independent notation, to enumerate.
* \param wildcard Wildcard pattern to use for filtering.
* \param caseSensitive Zero for case-insensitive matching,
* non-zero for case-sensitive.
* \param c Callback function to notify about search path elements.
* \param d Application-defined data passed to callback. Can be NULL.
*
* \sa PHYSFS_EnumFilesCallback
* \sa PHYSFS_enumerateFiles
*/
PHYSFS_DECL void PHYSFSEXT_enumerateFilesCallbackWildcard(const char *dir,
const char *wildcard,
int caseSensitive,
PHYSFS_EnumFilesCallback c,
void *d);
#ifdef __cplusplus
}
#endif
#endif /* include-once blocker. */
/* end of globbing.h ... */