diff options
Diffstat (limited to 'lisp/emacs-lisp/cl-seq.el')
| -rw-r--r-- | lisp/emacs-lisp/cl-seq.el | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/lisp/emacs-lisp/cl-seq.el b/lisp/emacs-lisp/cl-seq.el index 520d450481f..df3fbe89e95 100644 --- a/lisp/emacs-lisp/cl-seq.el +++ b/lisp/emacs-lisp/cl-seq.el @@ -129,14 +129,16 @@ second element of SEQ, then calling FUNCTION with that result and the third element of SEQ, then with that result and the fourth element of SEQ, etc. -If :INITIAL-VALUE is specified, it is added to the front of SEQ. -If SEQ is empty, return :INITIAL-VALUE and FUNCTION is not -called. - -If SEQ is empty and no :INITIAL-VALUE is given, then the function -is called with zero arguments, and reduce returns whatever -function does. This is the only case where the function is called -with other than two arguments. +If :INITIAL-VALUE is specified, it is logically added to the +front of SEQ (or the back if :FROM-END is non-nil). If SEQ is +empty, return :INITIAL-VALUE and FUNCTION is not called. + +If SEQ is empty and no :INITIAL-VALUE is specified, then return +the result of calling FUNCTION with zero arguments. This is the +only case where FUNCTION is called with fewer than two arguments. + +If SEQ contains exactly one element and no :INITIAL-VALUE is +specified, then return that element and FUNCTION is not called. \n(fn FUNCTION SEQ [KEYWORD VALUE]...)" (cl--parsing-keywords (:from-end (:start 0) :end :initial-value :key) () |