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Richard M. Stallman 1996-05-01 20:13:22 +00:00
parent 0efb88ffff
commit 8f3d8a86cf
1 changed files with 16 additions and 57 deletions
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lisp/resume.el
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@ -25,67 +25,26 @@
;;; Commentary:
;; Theory: the first time you start Emacs, command line arguments are
;; handled normally. Then, you suspend your emacs job. When you want to edit
;; something else, you type "emacs filename" as usual, but instead of
;; starting a new emacs job, the old job is resumed instead, and the command
;; line arguments are placed in a file where the old emacs job looks for
;; them.
;; The purpose of this library is to handle command line arguments
;; when you resume an existing Emacs job.
;; In order to use it, you must put this code in your .emacs file.
;; (add-hook 'suspend-hook 'resume-suspend-hook)
;; (add-hook 'suspend-resume-hook 'resume-process-args)
;; You can't get the benefit of this library by using the `emacs' command,
;; since that always starts a new Emacs job. Instead you must use a
;; command called `edit' which knows how to resume an existing Emacs job
;; if you have one, or start a new Emacs job if you don't have one.
;; To define the `edit' command, run the script etc/emacs.csh (if you use CSH),
;; or etc/emacs.bash if you use BASH. You would normally do this in your
;; login script.
;; Stephan Gildea suggested bug fix (gildea@bbn.com).
;; Ideas from Michael DeCorte and other people.
;; For csh users, insert the following alias in your .cshrc file
;; (after removing the leading double semicolons, of course):
;;
;;# The following line could be just EMACS_CMD=emacs, but this depends on
;;# your site.
;;if (! $?EMACS_CMD) set EMACS_CMD=emacs
;;set JOBS_FILE=/tmp/jobs.$USER.$$
;;set ARGS_FILE=~/.emacs_args
;;set STOP_PATT='^\[[0-9]*\] *[ +-] Stopped ............ '
;;set SUNVIEW_CMD='emacstool -nw -f emacstool-init -f server-start'
;;set X_CMD=\'\''$EMACS_CMD -i -f server-start'
;;alias emacs \
;;' \\
;; jobs >! "$JOBS_FILE" \\
;; && grep "$STOP_PATT$EMACS_CMD" "$JOBS_FILE" >& /dev/null \\
;; && echo `pwd` \!* >! "$ARGS_FILE" && ""fg %$EMACS_CMD \\
;;|| if (! -e ~/.emacs_server || -f ~/.emacs_server) set status=1 \\
;; && emacsclient \!* \\
;;|| @ status=1 - $?DISPLAY && eval "$X_CMD -i \!* &" \\
;;|| @ status=1 - $?WINDOW_PARENT && eval "$SUNVIEW_CMD \!* &" \\
;;|| ""$EMACS_CMD -nw \!* \\
;;'
;;
;; The alias works as follows:
;; 1. If there is a suspended Emacs job that is a child of the
;; current shell, place its arguments in the ~/.emacs_args file and
;; resume it.
;; 2. Else if the ~/.emacs_server socket has been created, presume an
;; Emacs server is running and attempt to connect to it. If no Emacs
;; server is listening on the socket, this will fail.
;; 3. Else if the DISPLAY environment variable is set, presume we are
;; running under X Windows and start a new GNU Emacs process in the
;; background as an X client.
;; 4. Else if the WINDOW_PARENT environment variable is set, presume we
;; are running under SunView and start an emacstool process in the
;; background.
;; 5. Else start a regular Emacs process.
;;
;; Notes:
;; The output of the "jobs" command is not piped directly into "grep"
;; because that would run the "jobs" command in a subshell.
;; Before resuming a suspended emacs, the current directory and all
;; command line arguments are placed in a file name ~/.emacs_args.
;; The "-nw" switch to Emacs means no windowing system.
;; Insert this in your .emacs file:
;;(add-hook 'suspend-hook 'resume-suspend-hook)
;; Finally, put the rest in a file named "resume.el" in a lisp library
;; directory.
;;; Code:
(defvar resume-emacs-args-file (expand-file-name "~/.emacs_args")