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### emacs.bash --- contact/resume an existing Emacs, or start a new one
## Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
## Free Software Foundation, Inc.
## Author: Noah Friedman
## This file is part of GNU Emacs.
## GNU Emacs is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 3, or (at your option)
## any later version.
## GNU Emacs is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU General Public License for more details.
## You should have received a copy of the GNU General Public License
## along with GNU Emacs; see the file COPYING. If not, write to the
## Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
## Boston, MA 02110-1301, USA.
### Commentary:
## This defines a bash command named `edit' which contacts/resumes an
## existing emacs or starts a new one if none exists.
## One way or another, any arguments are passed to emacs to specify files
## (provided you have loaded `resume.el').
## This function assumes the emacs program is named `emacs' and is somewhere
## in your load path. If either of these is not true, the most portable
## (and convenient) thing to do is to make an alias called emacs which
## refers to the real program, e.g.
##
## alias emacs=/usr/local/bin/gemacs
function edit ()
{
local windowsys="${WINDOW_PARENT+sun}"
windowsys="${windowsys:-${DISPLAY+x}}"
if [ -n "${windowsys:+set}" ]; then
# Do not just test if these files are sockets. On some systems
# ordinary files or fifos are used instead. Just see if they exist.
if [ -e "${HOME}/.emacs_server" -o -e "/tmp/emacs${UID}/server" ]; then
emacsclient "$@"
return $?
else
echo "edit: starting emacs in background..." 1>&2
fi
case "${windowsys}" in
x ) (emacs "$@" &) ;;
sun ) echo "unsupported window system"; return 1 ;;
esac
else
if jobs %emacs 2> /dev/null ; then
echo "$(pwd)" "$@" >| ${HOME}/.emacs_args && fg %emacs
else
emacs "$@"
fi
fi
}
# arch-tag: 1e1b74b9-bf2c-4b23-870f-9eebff7515cb
### emacs.bash ends here
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