nobu	2015-03-22 11:26:54 +0900 (Sun, 22 Mar 2015)

  New Revision: 50052

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=50052

  Log:
    win32.c: path_drive
    
    * win32/win32.c (path_drive): extract from winnt_stat, return the
      drive number in the path, or the current drive.

  Modified files:
    trunk/win32/win32.c
Index: win32/win32.c
===================================================================
--- win32/win32.c	(revision 50051)
+++ win32/win32.c	(revision 50052)
@@ -5073,6 +5073,14 @@ stat_by_find(const WCHAR *path, struct s https://github.com/ruby/ruby/blob/trunk/win32/win32.c#L5073
 
 /* License: Ruby's */
 static int
+path_drive(const WCHAR *path)
+{
+    return (iswalpha(path[0]) && path[1] == L':') ?
+	towupper(path[0]) - L'A' : _getdrive() - 1;
+}
+
+/* License: Ruby's */
+static int
 winnt_stat(const WCHAR *path, struct stati64 *st)
 {
     WIN32_FILE_ATTRIBUTE_DATA wfa;
@@ -5103,8 +5111,7 @@ winnt_stat(const WCHAR *path, struct sta https://github.com/ruby/ruby/blob/trunk/win32/win32.c#L5111
 	if (stat_by_find(path, st)) return -1;
     }
 
-    st->st_dev = st->st_rdev = (iswalpha(path[0]) && path[1] == L':') ?
-	towupper(path[0]) - L'A' : _getdrive() - 1;
+    st->st_dev = st->st_rdev = path_drive(path);
 
     return 0;
 }

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