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 63
