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1 | /* Return the basename of a pathname. | |
2 | This file is in the public domain. */ | |
3 | ||
4 | /* | |
5 | ||
6 | @deftypefn Supplemental char* basename (const char *@var{name}) | |
7 | ||
8 | Returns a pointer to the last component of pathname @var{name}. | |
9 | Behavior is undefined if the pathname ends in a directory separator. | |
10 | ||
11 | @end deftypefn | |
12 | ||
13 | */ | |
14 | ||
15 | #ifdef HAVE_CONFIG_H | |
16 | #include "config.h" | |
17 | #endif | |
18 | #include "ansidecl.h" | |
19 | #include "libiberty.h" | |
20 | #include "safe-ctype.h" | |
21 | ||
22 | #ifndef DIR_SEPARATOR | |
23 | #define DIR_SEPARATOR '/' | |
24 | #endif | |
25 | ||
26 | #if defined (_WIN32) || defined (__MSDOS__) || defined (__DJGPP__) || \ | |
27 | defined (__OS2__) | |
28 | #define HAVE_DOS_BASED_FILE_SYSTEM | |
29 | #ifndef DIR_SEPARATOR_2 | |
30 | #define DIR_SEPARATOR_2 '\\' | |
31 | #endif | |
32 | #endif | |
33 | ||
34 | /* Define IS_DIR_SEPARATOR. */ | |
35 | #ifndef DIR_SEPARATOR_2 | |
36 | # define IS_DIR_SEPARATOR(ch) ((ch) == DIR_SEPARATOR) | |
37 | #else /* DIR_SEPARATOR_2 */ | |
38 | # define IS_DIR_SEPARATOR(ch) \ | |
39 | (((ch) == DIR_SEPARATOR) || ((ch) == DIR_SEPARATOR_2)) | |
40 | #endif /* DIR_SEPARATOR_2 */ | |
41 | ||
42 | char * | |
43 | basename (const char *name) | |
44 | { | |
45 | const char *base; | |
46 | ||
47 | #if defined (HAVE_DOS_BASED_FILE_SYSTEM) | |
48 | /* Skip over the disk name in MSDOS pathnames. */ | |
49 | if (ISALPHA (name[0]) && name[1] == ':') | |
50 | name += 2; | |
51 | #endif | |
52 | ||
53 | for (base = name; *name; name++) | |
54 | { | |
55 | if (IS_DIR_SEPARATOR (*name)) | |
56 | { | |
57 | base = name + 1; | |
58 | } | |
59 | } | |
60 | return (char *) base; | |
61 | } | |
62 |