Re: TERRIBLE ERROR :: Invalid search bound - wrong side of point

[Pillsy <pillsbury@gmail.com>]

On Jul 2, 7:16 pm, bolega <gnuist...@gmail.com> wrote:
[...]
> I only want to replace this on one line such as the current line. I
> could narrow to the line but is it really necessary ? Cant I just
> specify the limits in replace-regexp ? Either there is something
> seriously wrong with my understanding of emacs so I must pursue this
> for the sake of learning.

You should probably try comp.emacs or gnu.help.emacs, too, since this
group focuses almost entirely on the Common Lisp dialect of Lisp.
Nonetheless, I'll take a stab at answering your question.

> I tried several variants:

> (replace-regexp "$" "#" nil (line-beginning-position) (line-end-
> position nil) )
> (replace-regexp "$" "#" nil (line-beginning-position) (+ (line-end-
> position nil) 1))

Well, one thing that works is to capture the text of the line as a
group, like so:

(replace-regexp "^\\(.*\\)$" "\\1#"
		  nil
		  (line-beginning-position)
		  (line-end-position))

However, if you just want to stick a character onto the end of the
line, why not just move the point there and insert the character
instead of using regexps?

(save-excursion (end-of-line) (insert "#"))

HTH,
Pillsy