[Orgmode] [Babel] Marker does not point anywhere (when session buffer needs to be created)

[Sébastien Vauban]

* Marker does not point anywhere

Executing the following:

#+begin_src sh :session NoSuchSessionYet
cd ~
ls *.txt
#+end_src

outputs this in *Messages*:

: executing Sh code block...
: think it is Cygwin...
: ~ 
: ansi-color-process-output: Marker does not point anywhere

when executed for the *first* time. All subsequent executions don't exhibit
this error (currently, they hang, but that's another story).

My prompt is colored -- I need it, really!  *None* of the =ls= results are
colored, though (in this above case: =ls ~/*.txt=).

Can we fix this somehow?

Test the following, and you'll see you need a colored prompt as well, if not
yet convinced:

#+begin_src sh :tangle .sva-bashrc
#*** Controlling the Prompt

# define some colors
RED='\e[1;31m'
GREEN='\e[1;32m'
NO_COLOR='\e[0m'

# my format of the prompt
function my_prompt_command ()
{
    # colorful prompt, based on whether the previous command succeeded or not
    if [[ $? -eq 0 ]]; then
        HILIT=${GREEN}
    else
        HILIT=${RED}
    fi

    # replace the $HOME prefix by ~ in the current directory
    if [[ $HOME == ${PWD:0:${#HOME}} ]]; then
        NEWPWD="~${PWD:${#HOME}}"
    else
        NEWPWD=$PWD
    fi

    # how many characters of the $PWD should be kept
    local pwd_max_length=15

    if [[ ${#NEWPWD} -gt $pwd_max_length ]]; then
        local pwd_offset=$(( ${#NEWPWD} - $pwd_max_length ))
        NEWPWD="...${NEWPWD:$pwd_offset:$pwd_max_length}"
    fi

    # prompt character
    if [[ $(whoami) = "root" ]]; then
        local PROMPTCHAR="#"
    else
        local PROMPTCHAR=">"
    fi

    case $TERM in
        dumb)  # for Tramp?
            setenv PS1 "address@hidden ${NEWPWD}${PROMPTCHAR}"
            ;;
        *)
            setenv PS1 "address@hidden ${NEWPWD}${PROMPTCHAR}\[${NO_COLOR}\]"
            ;;
    esac
}

# shell prompt
setenv PROMPT_COMMAND my_prompt_command
echo ""
#+end_src

Best regards,
  Seb

-- 
Sébastien Vauban