Re: comint: 'C-c RET' changed unfavorabily

[Luc Teirlinck]

Nick Roberts wrote:

   The two functions overlap (they both retrieve earlier input).  Can
   you give a simple example of how you use comint-copy-old-input in a
   way that doesn't work with comint-insert-input?

Setting comint-use-prompt-regexp to t.  C-c RET will cease to work.
The bug is due to the fact that `comint-insert-input' uses fields to
delimit the old input:

      (insert (buffer-substring-no-properties
             (previous-single-char-property-change (1+ pos) 'field)
                    (next-single-char-property-change pos 'field))))))

But if comint-use-prompt-regexp is t, there are no fields.
I do not know the motivation for replacing comint-copy-old-input with
comint-insert-input, so I do not know whether the correct solution is
simply to revert that change or to fix comint-insert-input. 

Sincerely,

Luc.