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authorLars Ingebrigtsen <larsi@gnus.org>2021-07-24 18:06:36 +0200
committerLars Ingebrigtsen <larsi@gnus.org>2021-07-24 18:06:36 +0200
commitba918ecb7891c6d0bb7bbaab93b4316881166d94 (patch)
treefcf77ac5f8a6ca167f62709d093c4affaf09a60a /doc
parent28bf38743db6656715c5f3221d52467cbac4872f (diff)
downloademacs-ba918ecb7891c6d0bb7bbaab93b4316881166d94.tar.gz
Improve directory-append manual entry
* doc/lispref/files.texi (Directory Names): Mention zero-length restriction.
Diffstat (limited to 'doc')
-rw-r--r--doc/lispref/files.texi2
1 files changed, 2 insertions, 0 deletions
diff --git a/doc/lispref/files.texi b/doc/lispref/files.texi
index a624c2eb937..804cef292ee 100644
--- a/doc/lispref/files.texi
+++ b/doc/lispref/files.texi
@@ -2355,6 +2355,8 @@ didn't end with a slash.
@end group
@end example
+A zero-length directory or component is not allowed.
+
This is almost the same as using @code{concat}, but @var{dirname} (and
the non-final components) may or may not end with slash characters,
and this function will not double those characters.