66 lines
1.4 KiB
C
66 lines
1.4 KiB
C
/* Return the basename of a pathname.
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This file is in the public domain. */
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/*
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NAME
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basename -- return pointer to last component of a pathname
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SYNOPSIS
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char *basename (const char *name)
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DESCRIPTION
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Given a pointer to a string containing a typical pathname
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(/usr/src/cmd/ls/ls.c for example), returns a pointer to the
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last component of the pathname ("ls.c" in this case).
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BUGS
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Presumes a UNIX or DOS/Windows style path with UNIX or DOS/Windows
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style separators.
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*/
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#include "ansidecl.h"
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#include "libiberty.h"
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#include <ctype.h>
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#ifndef DIR_SEPARATOR
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#define DIR_SEPARATOR '/'
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#endif
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#if defined (_WIN32) || defined (__MSDOS__) || defined (__DJGPP__) || \
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defined (__OS2__)
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#define HAVE_DOS_BASED_FILE_SYSTEM
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#ifndef DIR_SEPARATOR_2
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#define DIR_SEPARATOR_2 '\\'
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#endif
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#endif
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/* Define IS_DIR_SEPARATOR. */
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#ifndef DIR_SEPARATOR_2
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# define IS_DIR_SEPARATOR(ch) ((ch) == DIR_SEPARATOR)
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#else /* DIR_SEPARATOR_2 */
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# define IS_DIR_SEPARATOR(ch) \
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(((ch) == DIR_SEPARATOR) || ((ch) == DIR_SEPARATOR_2))
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#endif /* DIR_SEPARATOR_2 */
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char *
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basename (name)
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const char *name;
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{
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const char *base;
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#if defined (HAVE_DOS_BASED_FILE_SYSTEM)
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/* Skip over the disk name in MSDOS pathnames. */
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if (isalpha (name[0]) && name[1] == ':')
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name += 2;
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#endif
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for (base = name; *name; name++)
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{
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if (IS_DIR_SEPARATOR (*name))
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{
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base = name + 1;
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}
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}
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return (char *) base;
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}
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