patch 9.1.0161: expand() removes slash after env variable that ends with colon
Problem: expand() removes a slash after an environment variable that
ends with a colon on Windows.
Solution: Check the correct char for a colon (zeertzjq)
closes: #14161
Note: Vim still removes the path-separator at the end, if another path separator
follows directly after it, e.g. on:
```
echo $FOO='/usr/'
echo expand('$FOO/bar') == '/usr/bar'
```
see:
,----[ misc1.c:1630 ]
| // if var[] ends in a path separator and tail[] starts
| // with it, skip a character
| if (after_pathsep(dst, dst + c)
| #if defined(BACKSLASH_IN_FILENAME) || defined(AMIGA)
| && (dst == save_dst || dst[-1] != ':')
| #endif
| && vim_ispathsep(*tail))
| ++tail;
`----
Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/testdir/test_expand.vim b/src/testdir/test_expand.vim
index d7c393a..bebe138 100644
--- a/src/testdir/test_expand.vim
+++ b/src/testdir/test_expand.vim
@@ -51,6 +51,19 @@
bwipe!
endfunc
+func Test_expand_env_pathsep()
+ let $FOO = './foo'
+ call assert_equal('./foo/bar', expand('$FOO/bar'))
+ let $FOO = './foo/'
+ call assert_equal('./foo/bar', expand('$FOO/bar'))
+ let $FOO = 'C:'
+ call assert_equal('C:/bar', expand('$FOO/bar'))
+ let $FOO = 'C:/'
+ call assert_equal('C:/bar', expand('$FOO/bar'))
+
+ unlet $FOO
+endfunc
+
func Test_expandcmd()
let $FOO = 'Test'
call assert_equal('e x/Test/y', expandcmd('e x/$FOO/y'))