bug#27405: 25.2; Make eshell-next-prompt more reliable

[npostavs]

severity 27405 minor
tags 27405 + confirmed
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Pierre Neidhardt <ambrevar@gmail.com> writes:

> Current definition of `eshell-next-prompt' merely skips a
> paragraph. This won't produce the right result as soon the output
> contains a paragraph separator (typically an empty line).
>
> I have been using the following redefinition for a while and it works much
> better for me:

Seems reasonable.

>       (defun eshell-next-prompt (n)
>         "Move to end of Nth next prompt in the buffer.
>       See `eshell-prompt-regexp'."
>         (interactive "p")
>         (re-search-forward eshell-prompt-regexp nil t n)
>         (when eshell-highlight-prompt
>           (while (not (get-text-property (line-beginning-position) 
> 'read-only) )
>             (re-search-forward eshell-prompt-regexp nil t n)))
>         (eshell-skip-prompt))
>
>       (defun eshell-previous-prompt (n)
>         "Move to end of Nth previous prompt in the buffer.
>       See `eshell-prompt-regexp'."
>         (interactive "p")
>         (backward-char)
>         (eshell-next-prompt (- n))))

What's the backward-char for?