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Re: How to handle default value in read-string?
From: |
John Mastro |
Subject: |
Re: How to handle default value in read-string? |
Date: |
Mon, 3 Aug 2015 14:17:34 -0700 |
> I'd like read-string to somehow indicate the default value. A natural
> idea is to include it in the prompt, for example having a prompt like
>
> (format "Foo (%s): " default)
>
> However, Icicles' version of read-string already does exactly that, so
> for Icicles users this would be superfluous.
>
> So here's the question: is there a better way than just have a prompt of
>
> (if icicle-mode (don't-include-default) (do-include-default))?
There's no getting around that you'll need a condition somewhere.
However, you can of course wrap it up in a helper function, so you're
not repeating the condition every time you use `read-string'.
(defun my-read-string (prompt &optional ...)
(unless (bound-and-true-p icicle-mode)
(setq prompt (concat prompt " (%s)" default)))
(read-string prompt ...))
You could use advice to do the same thing but I don't think it would be
an improvement in this case.
--
john