From: John Mastro <john.b.mastro@gmail.com>
To: "help-gnu-emacs@gnu.org" <help-gnu-emacs@gnu.org>
Cc: egarrulo <egarrulo@gmail.com>
Subject: Re: Running an extended command with default input?
Date: Mon, 7 Mar 2016 10:38:39 -0800 [thread overview]
Message-ID: <CAOj2CQTjBFoiY8KcJOewUa3oYwnbEEg282Yf3QMY4gAiCofvdQ@mail.gmail.com> (raw)
In-Reply-To: <dk5jtpFc9feU1@mid.individual.net>
egarrulo <egarrulo@gmail.com> wrote:
> How can you run an extended command with a default input? For example:
> `eval-expression` with `(+ 1 1)` as default input (in other words:
> what you would accomplish by typing `M-: (+ 1 1)` without RET). This
> code works, but it seems to add an implicit RET:
>
> (execute-kbd-macro (vconcat (kbd (substitute-command-keys "\\[eval-expression] "))
> "(+ 1 1)"))
One option is to define your own command, which reads the input itself
(providing the default) and then invokes the underlying command. For
instance, for ‘eval-expression’ you could do something like:
(defun my-eval-expression (exp &optional insert-value)
(interactive (list (read--expression "Eval: " "(+ 1 1)")
current-prefix-arg))
(eval-expression exp insert-value))
--
john
prev parent reply other threads:[~2016-03-07 18:38 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-07 15:09 Running an extended command with default input? egarrulo
2016-03-07 18:38 ` John Mastro [this message]
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