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* bug#28258: 26.0.50; [PATCH] Let file-name-base succeed when buffer-file-name is nil
@ 2017-08-28  2:22 Mohammed Sadiq
  2017-08-29 15:54 ` Glenn Morris
  0 siblings, 1 reply; 9+ messages in thread
From: Mohammed Sadiq @ 2017-08-28  2:22 UTC (permalink / raw)
  To: 28258

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Let file-name-base succeed when buffer-file-name is nil.

Hi. This is my first patch to GNU Emacs. Please let me know if it is
sensible or not.

Thanks


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From efb4f12c9083ad3930eaf5da8929d4e6b33609eb Mon Sep 17 00:00:00 2001
From: "Mohammed Sadik P. K" <sadiq@sadiqpk.org>
Date: Mon, 28 Aug 2017 07:34:25 +0530
Subject: [PATCH] Let file-name-base succeed when buffer-file-name is nil

FILENAME is an optional argument for file-name-base.  So it shouldn't
fail when no filename is associated with current buffer.

* lisp/files.el (file-name-base): Don't fail when buffer-file-name
is nil.
---
 lisp/files.el | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/lisp/files.el b/lisp/files.el
index 872fc46e87..d75d402545 100644
--- a/lisp/files.el
+++ b/lisp/files.el
@@ -4467,8 +4467,9 @@ file-name-extension
 (defun file-name-base (&optional filename)
   "Return the base name of the FILENAME: no directory, no extension.
 FILENAME defaults to `buffer-file-name'."
-  (file-name-sans-extension
-   (file-name-nondirectory (or filename (buffer-file-name)))))
+  (let ((filename (or filename (buffer-file-name))))
+    (and filename
+        (file-name-sans-extension (file-name-nondirectory filename)))))
 
 (defcustom make-backup-file-name-function
   #'make-backup-file-name--default-function
-- 
2.11.0


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In GNU Emacs 26.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.22.11)
 of 2017-08-27 built on rose
Repository revision: 853ed4533bbddf16c50ad12ed1db70fa252715fb
Windowing system distributor 'The X.Org Foundation', version 11.0.11902000
System Description:	Debian GNU/Linux 9.1 (stretch)

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ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB
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Important settings:
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  value of $LC_NUMERIC: en_GB.UTF-8
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Major mode: Lisp Interaction

Minor modes in effect:
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Memory information:
((conses 16 95499 5650)
 (symbols 48 20292 1)
 (miscs 40 43 93)
 (strings 32 28804 1235)
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 (buffers 992 12))

^ permalink raw reply related	[flat|nested] 9+ messages in thread

end of thread, other threads:[~2017-09-24  8:07 UTC | newest]

Thread overview: 9+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2017-08-28  2:22 bug#28258: 26.0.50; [PATCH] Let file-name-base succeed when buffer-file-name is nil Mohammed Sadiq
2017-08-29 15:54 ` Glenn Morris
2017-08-29 16:10   ` Mohammed Sadiq
2017-08-29 17:02     ` Glenn Morris
2017-09-18 17:12       ` Philipp Stephani
2017-09-19  0:41         ` Glenn Morris
2017-09-19  8:31           ` Philipp Stephani
2017-09-19  8:46             ` Philipp Stephani
2017-09-24  8:07               ` Philipp Stephani

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