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/* Return the basename of a pathname.

   This file is in the public domain. */

/*

@deftypefn Supplemental char* basename (const char *@var{name})

Returns a pointer to the last component of pathname @var{name}.

Behavior is undefined if the pathname ends in a directory separator.

@end deftypefn

*/

#include "ansidecl.h"

#include "libiberty.h"

#include "safe-ctype.h"

#ifndef DIR_SEPARATOR

#define DIR_SEPARATOR '/'

#endif

#if defined (_WIN32) || defined (__MSDOS__) || defined (__DJGPP__) || \

  defined (__OS2__)

#define HAVE_DOS_BASED_FILE_SYSTEM

#ifndef DIR_SEPARATOR_2 

#define DIR_SEPARATOR_2 '\\'

#endif

#endif

/* Define IS_DIR_SEPARATOR.  */

#ifndef DIR_SEPARATOR_2

# define IS_DIR_SEPARATOR(ch) ((ch) == DIR_SEPARATOR)

#else /* DIR_SEPARATOR_2 */

# define IS_DIR_SEPARATOR(ch) \

        (((ch) == DIR_SEPARATOR) || ((ch) == DIR_SEPARATOR_2))

#endif /* DIR_SEPARATOR_2 */

char *

basename (name)

     const char *name;

{

  const char *base;

#if defined (HAVE_DOS_BASED_FILE_SYSTEM)

  /* Skip over the disk name in MSDOS pathnames. */

  if (ISALPHA (name[0]) && name[1] == ':')

    name += 2;

#endif

  for (base = name; *name; name++)

    {

      if (IS_DIR_SEPARATOR (*name))

        {

          base = name + 1;

        }

    }

  return (char *) base;

}