xref: /freebsd/contrib/less/lglob.h (revision 0a36787e4c1fa0cf77dcf83be0867178476e372b)
1 /*
2  * Copyright (C) 1984-2021  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, see the README file.
8  */
9 
10 
11 /*
12  * Macros to define the method of doing filename "globbing".
13  * There are three possible mechanisms:
14  *   1. GLOB_LIST
15  *      This defines a function that returns a list of matching filenames.
16  *   2. GLOB_NAME
17  *      This defines a function that steps thru the list of matching
18  *      filenames, returning one name each time it is called.
19  *   3. GLOB_STRING
20  *      This defines a function that returns the complete list of
21  *      matching filenames as a single space-separated string.
22  */
23 
24 #if OS2
25 
26 #define DECL_GLOB_LIST(list)            char **list;  char **pp;
27 #define GLOB_LIST(filename,list)        list = _fnexplode(filename)
28 #define GLOB_LIST_FAILED(list)          list == NULL
29 #define SCAN_GLOB_LIST(list,p)          pp = list;  *pp != NULL;  pp++
30 #define INIT_GLOB_LIST(list,p)          p = *pp
31 #define GLOB_LIST_DONE(list)            _fnexplodefree(list)
32 
33 #else
34 #if MSDOS_COMPILER==DJGPPC
35 
36 #define DECL_GLOB_LIST(list)            glob_t list;  int i;
37 #define GLOB_LIST(filename,list)        glob(filename,GLOB_NOCHECK,0,&list)
38 #define GLOB_LIST_FAILED(list)          0
39 #define SCAN_GLOB_LIST(list,p)          i = 0;  i < list.gl_pathc;  i++
40 #define INIT_GLOB_LIST(list,p)          p = list.gl_pathv[i]
41 #define GLOB_LIST_DONE(list)            globfree(&list)
42 
43 #else
44 #if MSDOS_COMPILER==MSOFTC || MSDOS_COMPILER==BORLANDC
45 
46 #define GLOB_FIRST_NAME(filename,fndp,h) h = _dos_findfirst(filename, ~_A_VOLID, fndp)
47 #define GLOB_FIRST_FAILED(handle)       ((handle) != 0)
48 #define GLOB_NEXT_NAME(handle,fndp)             _dos_findnext(fndp)
49 #define GLOB_NAME_DONE(handle)
50 #define GLOB_NAME                       name
51 #define DECL_GLOB_NAME(fnd,drive,dir,fname,ext,handle) \
52                                         struct find_t fnd;      \
53                                         char drive[_MAX_DRIVE]; \
54                                         char dir[_MAX_DIR];     \
55                                         char fname[_MAX_FNAME]; \
56                                         char ext[_MAX_EXT];     \
57                                         int handle;
58 #else
59 #if MSDOS_COMPILER==WIN32C && (defined(_MSC_VER) || defined(MINGW))
60 
61 #define GLOB_FIRST_NAME(filename,fndp,h) h = _findfirst(filename, fndp)
62 #define GLOB_FIRST_FAILED(handle)       ((handle) == -1)
63 #define GLOB_NEXT_NAME(handle,fndp)     _findnext(handle, fndp)
64 #define GLOB_NAME_DONE(handle)          _findclose(handle)
65 #define GLOB_NAME                       name
66 #define DECL_GLOB_NAME(fnd,drive,dir,fname,ext,handle) \
67                                         struct _finddata_t fnd; \
68                                         char drive[_MAX_DRIVE]; \
69                                         char dir[_MAX_DIR];     \
70                                         char fname[_MAX_FNAME]; \
71                                         char ext[_MAX_EXT];     \
72                                         intptr_t handle;
73 
74 #else
75 #if MSDOS_COMPILER==WIN32C && !defined(_MSC_VER) /* Borland C for Windows */
76 
77 #define GLOB_FIRST_NAME(filename,fndp,h) h = findfirst(filename, fndp, ~FA_LABEL)
78 #define GLOB_FIRST_FAILED(handle)       ((handle) != 0)
79 #define GLOB_NEXT_NAME(handle,fndp)     findnext(fndp)
80 #define GLOB_NAME_DONE(handle)
81 #define GLOB_NAME                       ff_name
82 #define DECL_GLOB_NAME(fnd,drive,dir,fname,ext,handle) \
83                                         struct ffblk fnd;       \
84                                         char drive[MAXDRIVE];   \
85                                         char dir[MAXDIR];       \
86                                         char fname[MAXFILE];    \
87                                         char ext[MAXEXT];       \
88                                         int handle;
89 
90 #endif
91 #endif
92 #endif
93 #endif
94 #endif
95