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authorRichard M. Stallman <[email protected]>2003-09-30 12:47:04 +0000
committerRichard M. Stallman <[email protected]>2003-09-30 12:47:04 +0000
commit9e1b128cd06ba6bd3d9c9dbefa88f35d2003d056 (patch)
tree699e6b58af0c14c79481c94e91001f6dc64b646c /lisp/emacs-lisp/lisp-mnt.el
parente927088b531a2e7c4fcb77d1feed1b30083d52d0 (diff)
(lm-with-file): When FILE is nil, run BODY in current buffer.
Diffstat (limited to 'lisp/emacs-lisp/lisp-mnt.el')
-rw-r--r--lisp/emacs-lisp/lisp-mnt.el10
1 files changed, 6 insertions, 4 deletions
diff --git a/lisp/emacs-lisp/lisp-mnt.el b/lisp/emacs-lisp/lisp-mnt.el
index 893d95db05..aeb7fb2258 100644
--- a/lisp/emacs-lisp/lisp-mnt.el
+++ b/lisp/emacs-lisp/lisp-mnt.el
@@ -297,12 +297,14 @@ The returned value is a list of strings, one per line."
(defmacro lm-with-file (file &rest body)
"Execute BODY in a buffer containing the contents of FILE.
-If FILE is nil, just return nil."
+If FILE is nil, execute BODY in the current buffer."
(let ((filesym (make-symbol "file")))
`(let ((,filesym ,file))
- (when ,filesym
- (with-temp-buffer
- (insert-file-contents ,filesym)
+ (if ,filesym
+ (with-temp-buffer
+ (insert-file-contents ,filesym)
+ ,@body)
+ (save-excursion
,@body)))))
(put 'lm-with-file 'lisp-indent-function 1)
(put 'lm-with-file 'edebug-form-spec t)