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Re: Selecting default prompt text

From: Andreas Politz
Subject: Re: Selecting default prompt text
Date: Thu, 12 Feb 2009 13:27:35 +0100
User-agent: Mozilla-Thunderbird (X11/20081018)

Richard Riley wrote:
Kevin Rodgers <address@hidden> writes:

Richard Riley wrote:
I like my interactive functions to generally use the word or region at
point as a default. Is there a way to make the read-string mini buffer
input to pre-select the default value?



(setq url (read-string (format "Url (%s) :" url) url nil url))

Here I would like to see at the input prompt

Url (xyz): xyz

with the default value of "xyz" already selected. In other words
the same behaviour as when you tab into a populated  entry field in most
of applications.
(let ((url-at-point (thing-at-point 'url)))
  (read-string (if url-at-point
                   (format "URL (%s): " url-at-point)
                 "URL: ")
               nil nil url-at-point))

Hi Kevin,

Sorry if I was not clear. I don't mean a default value - I mean
pre-selected as in "in region". e.g when you tab to a field in a web
form for example - The data in the field is highlighted/selected. I
already had a default value set as "url" in the code above.


enter some text and tab to a button then tab back. The text in the
search field is selected.

Something like this ?

(defun minibuffer-select-inital-input ()
  (let ((start (next-single-char-property-change 1 'read-only)))
    (when (< start (point-max))
      (set-mark start)
      (setq mark-active t))))

(add-hook 'minibuffer-setup-hook 'minibuffer-select-inital-input)
(read-string "> " "Hallo")


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