commit 5a664fe57fe7ba65a771bc95ef1c205e4db193b7
author Yegappan Lakshmanan <yegappan@yahoo.com> Wed Dec 29 18:16:21 2021 +0000
committer Bram Moolenaar <Bram@vim.org> Wed Dec 29 18:16:21 2021 +0000
tree f5ce0ac38f78b3fe6e95448f7f5d58f4078ef68a
parent ba26367fea3b63df49d274f3d5cca0af38402add

patch 8.2.3939: MS-Windows: fnamemodify('', ':p') does not work

Problem:    MS-Windows: fnamemodify('', ':p') does not work.
Solution:   Do not consider an empty string a full path. (Yegappan Lakshmanan,
            closes #9428, closes #9427)

src/os_mswin.c

diff --git a/src/os_mswin.c b/src/os_mswin.c
index 26042b4..e27f389 100644
--- a/src/os_mswin.c
+++ b/src/os_mswin.c
@@ -390,7 +390,7 @@
     // the same as the name or mch_FullName() fails.  However, this has quite a
     // bit of overhead, so let's not do that.
     if (*fname == NUL)
-	return TRUE;
+	return FALSE;
     return ((ASCII_ISALPHA(fname[0]) && fname[1] == ':'
 				      && (fname[2] == '/' || fname[2] == '\\'))
 	    || (fname[0] == fname[1] && (fname[0] == '/' || fname[0] == '\\')));

src/testdir/test_fnamemodify.vim

diff --git a/src/testdir/test_fnamemodify.vim b/src/testdir/test_fnamemodify.vim
index dfe322a..c19f464 100644
--- a/src/testdir/test_fnamemodify.vim
+++ b/src/testdir/test_fnamemodify.vim
@@ -32,6 +32,7 @@
   call assert_equal('fb2.tar.gz', fnamemodify('abc.fb2.tar.gz', ':e:e:e'))
   call assert_equal('fb2.tar.gz', fnamemodify('abc.fb2.tar.gz', ':e:e:e:e'))
   call assert_equal('tar', fnamemodify('abc.fb2.tar.gz', ':e:e:r'))
+  call assert_equal(getcwd(), fnamemodify('', ':p:h'))
 
   let cwd = getcwd()
   call chdir($HOME)

src/version.c

diff --git a/src/version.c b/src/version.c
index 15df860..0f0414e 100644
--- a/src/version.c
+++ b/src/version.c
@@ -750,6 +750,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3939,
+/**/
     3938,
 /**/
     3937,