From e6b75e30dc80863bde42c0b50797719846470f06 Mon Sep 17 00:00:00 2001 From: "Richard M. Stallman" Date: Mon, 14 Aug 1995 16:05:12 +0000 Subject: [PATCH] (command-line-1): Add option --eval to evalute an expression on the command line and print the result. --- lisp/startup.el | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/lisp/startup.el b/lisp/startup.el index 42a3a5c576f..b482aa880de 100644 --- a/lisp/startup.el +++ b/lisp/startup.el @@ -101,6 +101,9 @@ ;; --funcall FUNC and should not be used. (It's a typo ;; -e FUNC promoted to a feature.) ;; +;; -eval FORM Execute Emacs lisp form FORM, and print +;; --eval FORM the value it returns. +;; ;; -insert FILE Insert the contents of FILE into buffer. ;; --insert FILE ;; ------------------------- @@ -674,7 +677,7 @@ Type \\[describe-distribution] for information on getting the latest version.")) ;; and long versions of what's on command-switch-alist. (longopts (append '(("--funcall") ("--load") ("--insert") ("--kill") - ("--directory")) + ("--directory") ("--eval")) (mapcar '(lambda (elt) (list (concat "-" (car elt)))) command-switch-alist))) @@ -717,6 +720,12 @@ Type \\[describe-distribution] for information on getting the latest version.")) (if (arrayp (symbol-function tem)) (command-execute tem) (funcall tem))) + ((string-equal argi "-eval") + (if argval + (setq tem argval) + (setq tem (car command-line-args-left)) + (setq command-line-args-left (cdr command-line-args-left))) + (print (eval (read tem)))) ;; Set the default directory as specified in -L. ((or (string-equal argi "-L") (string-equal argi "-directory")) -- 2.39.2