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