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Re: Selecting default prompt text

From: Kevin Rodgers
Subject: Re: Selecting default prompt text
Date: Wed, 11 Feb 2009 19:53:36 -0700
User-agent: Thunderbird (Macintosh/20081209)

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))

Kevin Rodgers
Denver, Colorado, USA

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