rlogin, ssh choke on \r

[Jerry James]

"Ilya N. Golubev" <gin at mo.msk.ru> wrote:
> The bug does not occur if `comint-inhibit-carriage-motion' is not
> `nil'.  And this value is not output by `report-emacs-bug'.
>
> The `comint' version is upstream one.

This is a feature, not a bug.  As the Emacs NEWS file explains it:

------------------------------------------------------------------------
*** Comint now by default interprets some carriage-control characters.
Comint now removes CRs from CR LF sequences, and treats single CRs and
BSs in the output in a way similar to a terminal (by deleting to the
beginning of the line, or deleting the previous character,
respectively).  This is achieved by adding `comint-carriage-motion' to
the `comint-output-filter-functions' hook by default.
------------------------------------------------------------------------

Note also the third line of the comint-carriage-motion docstring (to
which the comint-inhibit-carriage-motion docstring refers):

------------------------------------------------------------------------
Interpret carriage control characters in the region from START to END.
Translate carriage return/linefeed sequences to linefeeds.
Make single carriage returns delete to the beginning of the line.
Make backspaces delete the previous character.
------------------------------------------------------------------------

If you are working on a system that is providing you with bare '\r'
characters, then you definitely want to be sure that
comint-inhibit-carriage-motion is non-nil.
-- 
Jerry James, Assistant Professor        james at xemacs.org
Computer Science Department             http://www.cs.usu.edu/~jerry/
Utah State University