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Re: underline with character e.g. '-' or '='

From: Brian Adkins
Subject: Re: underline with character e.g. '-' or '='
Date: Wed, 14 May 2008 15:05:50 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.60 (gnu/linux)

David Hansen <address@hidden> writes:

> On Tue, 13 May 2008 16:03:34 -0400 Brian Adkins wrote:
>> I often underline text with a hyphen or equal sign manually. I would
>> appreciate any info regarding how to accomplish this with a small elisp
>> function. Actually, if I had a function to compute the length of the
>> line, I think I would be all set.
>> For example, if I had the following line:
>> Section One
>> I would like to position the the cursor on the 'S' and invoke:
>> M-x underline-line-with-char
>> Which would prompte for a character in the minibuffer. If = was
>> supplied, the result would be:
>> Section One
>> ===========
> (defun underline-with-char (char)
>   (interactive (list (read-from-minibuffer "Char: ")))
>   (when (= 0 (length char))
>     (error "Need a character"))
>   (setq char (aref char 0))             ; Ignore everything but the first 
> char.
>   (save-excursion
>     (goto-char (point-at-eol))
>     (insert "\n"
>             (make-string (- (point-at-eol)
>                             (point-at-bol))
>                          char))))

Perfect - thanks! I love how extensible Emacs is. I just need to find
some time to research elisp programming. I've added a few things to my
tool belt from your code above.

> If it's only about visual feedback in emacs: tried outline-mode?

I have tried outline-mode briefly, but the function above is precisely
what I want.

> David

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