xref: /freebsd/contrib/less/lglob.h (revision 9517e866259191fcd39434a97ad849a9b59b9b9f)
1 /*
2  * Copyright (C) 1984-2009  Mark Nudelman
3  *
4  * You may distribute under the terms of either the GNU General Public
5  * License or the Less License, as specified in the README file.
6  *
7  * For more information about less, or for information on how to
8  * contact the author, see the README file.
9  */
10 
11 
12 /*
13  * Macros to define the method of doing filename "globbing".
14  * There are three possible mechanisms:
15  *   1.	GLOB_LIST
16  *	This defines a function that returns a list of matching filenames.
17  *   2. GLOB_NAME
18  *	This defines a function that steps thru the list of matching
19  *	filenames, returning one name each time it is called.
20  *   3. GLOB_STRING
21  *	This defines a function that returns the complete list of
22  *	matching filenames as a single space-separated string.
23  */
24 
25 #if OS2
26 
27 #define	DECL_GLOB_LIST(list)		char **list;  char **pp;
28 #define	GLOB_LIST(filename,list)	list = _fnexplode(filename)
29 #define	GLOB_LIST_FAILED(list)		list == NULL
30 #define	SCAN_GLOB_LIST(list,p)		pp = list;  *pp != NULL;  pp++
31 #define	INIT_GLOB_LIST(list,p)		p = *pp
32 #define	GLOB_LIST_DONE(list)		_fnexplodefree(list)
33 
34 #else
35 #if MSDOS_COMPILER==DJGPPC
36 
37 #define	DECL_GLOB_LIST(list)		glob_t list;  int i;
38 #define	GLOB_LIST(filename,list)	glob(filename,GLOB_NOCHECK,0,&list)
39 #define	GLOB_LIST_FAILED(list)		0
40 #define	SCAN_GLOB_LIST(list,p)		i = 0;  i < list.gl_pathc;  i++
41 #define	INIT_GLOB_LIST(list,p)		p = list.gl_pathv[i]
42 #define	GLOB_LIST_DONE(list)		globfree(&list)
43 
44 #else
45 #if MSDOS_COMPILER==MSOFTC || MSDOS_COMPILER==BORLANDC
46 
47 #define	GLOB_FIRST_NAME(filename,fndp,h) h = _dos_findfirst(filename, ~_A_VOLID, fndp)
48 #define	GLOB_FIRST_FAILED(handle)	((handle) != 0)
49 #define	GLOB_NEXT_NAME(handle,fndp)		_dos_findnext(fndp)
50 #define	GLOB_NAME_DONE(handle)
51 #define	GLOB_NAME			name
52 #define	DECL_GLOB_NAME(fnd,drive,dir,fname,ext,handle) \
53 					struct find_t fnd;	\
54 					char drive[_MAX_DRIVE];	\
55 					char dir[_MAX_DIR];	\
56 					char fname[_MAX_FNAME];	\
57 					char ext[_MAX_EXT];	\
58 					int handle;
59 #else
60 #if MSDOS_COMPILER==WIN32C && defined(_MSC_VER)
61 
62 #define	GLOB_FIRST_NAME(filename,fndp,h) h = _findfirst(filename, fndp)
63 #define	GLOB_FIRST_FAILED(handle)	((handle) == -1)
64 #define	GLOB_NEXT_NAME(handle,fndp)	_findnext(handle, fndp)
65 #define	GLOB_NAME_DONE(handle)		_findclose(handle)
66 #define	GLOB_NAME			name
67 #define	DECL_GLOB_NAME(fnd,drive,dir,fname,ext,handle) \
68 					struct _finddata_t fnd;	\
69 					char drive[_MAX_DRIVE];	\
70 					char dir[_MAX_DIR];	\
71 					char fname[_MAX_FNAME];	\
72 					char ext[_MAX_EXT];	\
73 					long handle;
74 
75 #else
76 #if MSDOS_COMPILER==WIN32C && !defined(_MSC_VER) /* Borland C for Windows */
77 
78 #define	GLOB_FIRST_NAME(filename,fndp,h) h = findfirst(filename, fndp, ~FA_LABEL)
79 #define	GLOB_FIRST_FAILED(handle)	((handle) != 0)
80 #define	GLOB_NEXT_NAME(handle,fndp)	findnext(fndp)
81 #define	GLOB_NAME_DONE(handle)
82 #define	GLOB_NAME			ff_name
83 #define	DECL_GLOB_NAME(fnd,drive,dir,fname,ext,handle) \
84 					struct ffblk fnd;	\
85 					char drive[MAXDRIVE];	\
86 					char dir[MAXDIR];	\
87 					char fname[MAXFILE];	\
88 					char ext[MAXEXT];	\
89 					int handle;
90 
91 #endif
92 #endif
93 #endif
94 #endif
95 #endif
96