Re: Eshell - `Text is read-only`

[Guido Van Hoecke <guivho@gmail.com>]

deech <aditya.siram@gmail.com> writes:

> Hi all, I've run into the dreaded `Text is read-only` bug which stops
> eshell from closing and Emacs from exiting. I got this in a previous
> version of Emacs and fixed it with the following snippet:

> (setq eshell-prompt-function
>   (lambda ()
>     (concat (eshell/pwd) "\n$"))
>   eshell-prompt-regexp (concat "^" (regexp-quote "$")))

I just hit the problem today. I'd say it occurs once a month at the
most. My prompt is a two line version. It looks like this:

2013-12-29 22:28 ~/src/gvhperls
$ 

I don't think it is due to the prompt. FWIW, here's my
eshell-prompt-function, which I shamelesly based on snippets collected
on the net:

(setq eshell-prompt-function
      (lambda ()
        (let ((prompt (eshell/pwd))
              (now (format-time-string "\n%Y-%m-%d %H:%M " (current-time)))
              (home-dir (expand-file-name "~")))
          ;; get rid of the nasty backslashes
          (while (string-match "\\\\" home-dir)
            (setq home-dir (replace-match "/" nil t home-dir)))

          ;; match home-dir at the begining of the line
          ;; be careful not to match `/users/foo.old' if $HOME is `/users/foo'
          (if (string-match
               (concat "^\\(" home-dir "\\)\\(/.*\\)?$")
               prompt)

              (setq prompt (replace-match
                            (if (and (match-string 2))
                                "~\\2"
                              "~")
                            nil
                            nil
                            prompt
                            0)))

          ;; return the prompt
          ;;   -tack on $ or # depending on user id
          (concat now prompt
                  (if (= (user-uid) 0) "\n# " "\n$ ")))))


Although it does not happen frequently, I sure would like to get it
solved. There's only one solution afaik, and that's just killing emacs,
as in `kill -9 emacs_pid`. This is drastic, but the only way I know to
get rid of the buffer :(

Any suggestion and/or help would be really appreciated!

TIA, and a happy and healthy new-year to you all :)


Guido

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