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authorMark Oteiza <mvoteiza@udel.edu>2017-09-13 10:38:05 -0400
committerMark Oteiza <mvoteiza@udel.edu>2017-09-13 10:38:05 -0400
commit912826a829fc5e95d677f48b72413dccd216c6e1 (patch)
tree48c7baa2d35371064060c8c442b1aa5bebdb1aa8 /lisp/subr.el
parent3d96fc15362453f43f3f04ffa288a57ee1e633c3 (diff)
downloademacs-912826a829fc5e95d677f48b72413dccd216c6e1.tar.gz
Remove "baroque" use of prefix argument from gensym
'cl-gensym' was simply moved here, but let us take an opportunity to shed some historical baggage. * lisp/subr.el (gensym): Remove special treatment of PREFIX as a number. Use "g" as prefix to differentiate from cl-gensym defaults. * doc/lispref/symbols.texi (Creating Symbols): Update accordingly. * lisp/emacs-lisp/cl-macs.el (cl--gensym-counter, cl-gensym): Restore.
Diffstat (limited to 'lisp/subr.el')
-rw-r--r--lisp/subr.el11
1 files changed, 4 insertions, 7 deletions
diff --git a/lisp/subr.el b/lisp/subr.el
index ebb8b53b502..52d4e190e73 100644
--- a/lisp/subr.el
+++ b/lisp/subr.el
@@ -286,13 +286,10 @@ without silencing all errors."
(defun gensym (&optional prefix)
"Return a new uninterned symbol.
The name is made by appending `gensym-counter' to PREFIX.
-PREFIX can be a string, and defaults to \"G\".
-If PREFIX is a number, it replaces the value of `gensym-counter'."
- (let ((pfix (if (stringp prefix) prefix "G"))
- (num (if (integerp prefix) prefix
- (prog1 gensym-counter
- (setq gensym-counter (1+ gensym-counter))))))
- (make-symbol (format "%s%d" pfix num))))
+PREFIX is a string, and defaults to \"g\"."
+ (let ((num (prog1 gensym-counter
+ (setq gensym-counter (1+ gensym-counter)))))
+ (make-symbol (format "%s%d" prefix num))))
(defun ignore (&rest _ignore)
"Do nothing and return nil.