Add ChangeLog entries for recent commits.

[gnulib.git] / lib / dirname.h

diff --git a/lib/dirname.h b/lib/dirname.h
index 5c3c930..fb19508 100644 (file)
--- a/lib/dirname.h
+++ b/lib/dirname.h
@@ -1,11 +1,12 @@
 /*  Take file names apart into directory and base names.
 
-    Copyright (C) 1998, 2001, 2003, 2004 Free Software Foundation, Inc.
+    Copyright (C) 1998, 2001, 2003-2006, 2009-2010 Free Software Foundation,
+    Inc.
 
-    This program is free software; you can redistribute it and/or modify
+    This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2, or (at your option)
-    any later version.
+    the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
 
     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -13,8 +14,7 @@
     GNU General Public License for more details.
 
     You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software Foundation,
-    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #ifndef DIRNAME_H_
 # define DIRNAME_H_ 1
@@ -31,17 +31,44 @@
 # endif
 
 # ifndef FILE_SYSTEM_PREFIX_LEN
-#  define FILE_SYSTEM_PREFIX_LEN(Filename) 0
+#  if FILE_SYSTEM_ACCEPTS_DRIVE_LETTER_PREFIX
+    /* This internal macro assumes ASCII, but all hosts that support drive
+       letters use ASCII.  */
+#   define _IS_DRIVE_LETTER(c) (((unsigned int) (c) | ('a' - 'A')) - 'a' \
+                                <= 'z' - 'a')
+#   define FILE_SYSTEM_PREFIX_LEN(Filename) \
+           (_IS_DRIVE_LETTER ((Filename)[0]) && (Filename)[1] == ':' ? 2 : 0)
+#  else
+#   define FILE_SYSTEM_PREFIX_LEN(Filename) 0
+#  endif
 # endif
 
-# define IS_ABSOLUTE_FILE_NAME(F) ISSLASH ((F)[FILE_SYSTEM_PREFIX_LEN (F)])
+# ifndef FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE
+#  define FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE 0
+# endif
+
+# ifndef DOUBLE_SLASH_IS_DISTINCT_ROOT
+#  define DOUBLE_SLASH_IS_DISTINCT_ROOT 0
+# endif
+
+# if FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE
+#  define IS_ABSOLUTE_FILE_NAME(F) ISSLASH ((F)[FILE_SYSTEM_PREFIX_LEN (F)])
+# else
+#  define IS_ABSOLUTE_FILE_NAME(F) \
+          (ISSLASH ((F)[0]) || 0 < FILE_SYSTEM_PREFIX_LEN (F))
+# endif
 # define IS_RELATIVE_FILE_NAME(F) (! IS_ABSOLUTE_FILE_NAME (F))
 
-char *base_name (char const *path);
-char *dir_name (char const *path);
-size_t base_len (char const *path);
-size_t dir_len (char const *path);
+# if GNULIB_DIRNAME
+char *base_name (char const *file);
+char *dir_name (char const *file);
+# endif
+
+char *mdir_name (char const *file);
+size_t base_len (char const *file);
+size_t dir_len (char const *file);
+char *last_component (char const *file);
 
-bool strip_trailing_slashes (char *path);
+bool strip_trailing_slashes (char *file);
 
 #endif /* not DIRNAME_H_ */