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