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|
;;; ess-dump.el --- Getting objects into text files for editing
;; Copyright (C) 2000--2004 A.J. Rossini, Richard M. Heiberger, Martin
;; Maechler, Kurt Hornik, Rodney Sparapani, and Stephen Eglen.
;; Original Author: A.J. Rossini <rossini@u.washington.edu>
;; Created: 3 Sept 2000
;; Maintainers: ESS-core <ESS-core@stat.math.ethz.ch>
;; This file is part of ESS
;; This file 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 2, or (at your option)
;; any later version.
;; This file 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.
;; A copy of the GNU General Public License is available at
;; http://www.r-project.org/Licenses/
;;; Commentary:
;; Code for sending statistical objects to text files for editing.
;;
;; THIS IS STRICTLY NOT USED, BUT IS FOR PLANNING.
;;; Code:
; Requires and autoloads
(require 'ess)
(defun ess-check-source (fname)
"If file FNAME has an unsaved buffer, offer to save it.
Returns t if the buffer existed and was modified, but was not saved."
(let ((buff (get-file-buffer fname)))
;; RMH: Corrections noted below are needed for C-c C-l to work
;; correctly when issued from *S* buffer.
;; The following barfs since
;; 1. `if' does not accept a buffer argument, `not' does.
;; 2. (buffer-file-name) is not necessarily defined for *S*
;;(if buff
;; (let ((deleted (not (file-exists-p (buffer-file-name)))))
;; Next 2 lines are RMH's solution:
(if (not(not buff))
(let ((deleted (not (file-exists-p fname))))
(if (and deleted (not (buffer-modified-p buff)))
;; Buffer has been silently deleted, so silently save
(save-excursion
(set-buffer buff)
(set-buffer-modified-p t)
(save-buffer))
(if (and (buffer-modified-p buff)
(or ess-mode-silently-save
(y-or-n-p
(format "Save buffer %s first? "
(buffer-name buff)))))
(save-excursion
(set-buffer buff)
(save-buffer))))
(buffer-modified-p buff)))))
(defun ess-dump-object-into-edit-buffer (object)
"Edit an ESS object in its own buffer.
Without a prefix argument, this simply finds the file pointed to by
`ess-source-directory'. If this file does not exist, or if a
prefix argument is given, a dump() command is sent to the ESS process to
generate the source buffer."
(interactive
(progn
(ess-force-buffer-current "Process to dump from: ")
(ess-read-object-name "Object to edit: ")))
(let* ((dirname (file-name-as-directory
(if (stringp ess-source-directory)
ess-source-directory
(save-excursion
(set-buffer
(process-buffer (get-ess-process
ess-local-process-name)))
(ess-setq-vars-local ess-customize-alist)
(apply ess-source-directory nil)))))
(filename (concat dirname (format ess-dump-filename-template object)))
(old-buff (get-file-buffer filename)))
;; If the directory doesn't exist, offer to create it
(if (file-exists-p (directory-file-name dirname)) nil
(if (y-or-n-p ; Approved
(format "Directory %s does not exist. Create it? " dirname))
(make-directory (directory-file-name dirname))
(error "Directory %s does not exist." dirname)))
;; Three options:
;; (1) Pop to an existing buffer containing the file in question
;; (2) Find an existing file
;; (3) Create a new file by issuing a dump() command to S
;; Force option (3) if there is a prefix arg
(if current-prefix-arg
(ess-dump-object object filename)
(if old-buff
(progn
(pop-to-buffer old-buff)
(message "Popped to edit buffer."))
;; No current buffer containing desired file
(if (file-exists-p filename)
(progn
(ess-find-dump-file-other-window filename)
(message "Read %s" filename))
;; No buffer and no file
(ess-dump-object object filename))))))
(defun ess-dump-object (object filename)
"Dump the ESS object OBJECT into file FILENAME."
(let ((complete-dump-command (format inferior-ess-dump-command
object filename)))
(if (file-writable-p filename) nil
(error "Can't dump %s as %f is not writeable." object filename))
;; Make sure we start fresh
(if (get-file-buffer filename)
(or (kill-buffer (get-file-buffer filename))
(error "Aborted.")))
(ess-command complete-dump-command)
(message "Dumped in %s" filename)
(ess-find-dump-file-other-window filename)
;; PD, 1Apr97
;;This ensures that the object gets indented according to ess-mode,
;;not as the R/S deparser does it. At the same time, it gets rid
;;of the mess generated by sending TAB characters to the readline
;;functions in R when you eval-buffer-*.
(indent-region (point-min-marker) (point-max-marker) nil)
(set-buffer-modified-p nil)
;; Don't make backups for temporary files; it only causes clutter.
;; The ESS object itself is a kind of backup, anyway.
(if ess-keep-dump-files nil
(make-local-variable 'make-backup-files)
(setq make-backup-files nil))
;; Don't get confirmation to delete dumped files when loading
(if (eq ess-keep-dump-files 'check)
(setq ess-keep-dump-files nil))
;; Delete the file if necessary
(if ess-delete-dump-files
(delete-file (buffer-file-name)))))
(defun ess-find-dump-file-other-window (filename)
"Find ESS source file FILENAME in another window."
(if (file-exists-p filename) nil
(ess-write-to-dribble-buffer
(format "%s does not exist. Bad dump, starting fresh." filename)))
;; Generate a buffer with the dumped data
(find-file-other-window filename)
(ess-mode ess-customize-alist)
(auto-save-mode 1) ; Auto save in this buffer
(setq ess-local-process-name ess-current-process-name)
(if ess-function-template
(progn
(goto-char (point-max))
(if (re-search-backward ess-dumped-missing-re nil t)
(progn
(replace-match ess-function-template t t)
(set-buffer-modified-p nil) ; Don't offer to save if killed now
(goto-char (point-min))
(condition-case nil
;; This may fail if there are no opens
(down-list 1)
(error nil)))))))
;; AJR: XEmacs, makes sense to dump into "other frame".
(defun ess-dump-object-into-edit-buffer-other-frame (object)
"Edit an ESS object in its own frame."
(switch-to-buffer-other-frame (ess-dump-object-into-edit-buffer object)))
(provide 'ess-dump)
; Local variables section
;;; This file is automatically placed in Outline minor mode.
;;; The file is structured as follows:
;;; Chapters: ^L ;
;;; Sections: ;;*;;
;;; Subsections: ;;;*;;;
;;; Components: defuns, defvars, defconsts
;;; Random code beginning with a ;;;;* comment
;;; Local variables:
;;; mode: emacs-lisp
;;; outline-minor-mode: nil
;;; mode: outline-minor
;;; outline-regexp: "\^L\\|\\`;\\|;;\\*\\|;;;\\*\\|(def[cvu]\\|(setq\\|;;;;\\*"
;;; End:
;;; ess-dump.el ends here
|
