Annotation of 43BSD/contrib/emacs/lisp/telnet.el, revision 1.1

1.1     ! root        1: ;; Copyright (C) 1985 Free Software Foundation
        !             2: 
        !             3: ;; This file is part of GNU Emacs.
        !             4: 
        !             5: ;; GNU Emacs is distributed in the hope that it will be useful,
        !             6: ;; but WITHOUT ANY WARRANTY.  No author or distributor
        !             7: ;; accepts responsibility to anyone for the consequences of using it
        !             8: ;; or for whether it serves any particular purpose or works at all,
        !             9: ;; unless he says so in writing.  Refer to the GNU Emacs General Public
        !            10: ;; License for full details.
        !            11: 
        !            12: ;; Everyone is granted permission to copy, modify and redistribute
        !            13: ;; GNU Emacs, but only under the conditions described in the
        !            14: ;; GNU Emacs General Public License.   A copy of this license is
        !            15: ;; supposed to have been given to you along with GNU Emacs so you
        !            16: ;; can know your rights and responsibilities.  It should be in a
        !            17: ;; file named COPYING.  Among other things, the copyright notice
        !            18: ;; and this notice must be preserved on all copies.
        !            19: 
        !            20: 
        !            21: ;; Author William F. Schelter
        !            22: 
        !            23: ;;to do fix software types for lispm:
        !            24: ;;to eval current expression.  Also to try to send escape keys correctly.
        !            25: ;;essentially we'll want the rubout-handler off.
        !            26: 
        !            27: (defvar telnet-new-line "\r")
        !            28: (defvar telnet-mode-map nil)
        !            29: (defvar telnet-prompt-pattern "^[^#$%>]*[#$%>] *")
        !            30: (defvar telnet-interrupt-string "\^c" "String sent by C-c.")
        !            31: (defvar telnet-count 0)
        !            32: (defvar telnet-replace-c-g nil)
        !            33: (defvar telnet-remote-echoes nil)
        !            34: 
        !            35: (defun telnet-interrupt-subjob ()
        !            36:   (interactive)
        !            37:   "Interrupt the program running through telnet on the remote host."
        !            38:   (send-string nil telnet-interrupt-string))
        !            39: 
        !            40: (defun telnet-c-z ()
        !            41:   (interactive)
        !            42:   (send-string nil ""))
        !            43: 
        !            44: (defun send-process-next-char ()
        !            45:   (interactive)
        !            46:   (send-string nil
        !            47:               (char-to-string
        !            48:                (let ((inhibit-quit t))
        !            49:                  (prog1 (read-char)
        !            50:                    (setq quit-flag nil))))))
        !            51: 
        !            52: (if telnet-mode-map
        !            53:     nil
        !            54:   (setq telnet-mode-map (make-keymap))
        !            55:   (define-key telnet-mode-map "\C-m" 'telnet-send-input)
        !            56:   (define-key telnet-mode-map "\C-d" 'shell-send-eof)
        !            57:   (define-key telnet-mode-map "\C-q" 'send-process-next-char)
        !            58:   (define-key telnet-mode-map "\C-u" 'kill-shell-input)
        !            59:   (define-key telnet-mode-map "\C-w" 'backward-kill-word)
        !            60:   (define-key telnet-mode-map "\C-c" 'telnet-interrupt-subjob) 
        !            61:   (define-key telnet-mode-map "\C-z"  'telnet-c-z)
        !            62:   )
        !            63: 
        !            64: ;;maybe should have a flag for when have found type
        !            65: (defun telnet-check-software-type-initialize (string)
        !            66:   "Tries to put correct initializations in.  Needs work."
        !            67:   (cond ((string-match "unix" string)
        !            68:         (setq telnet-prompt-pattern shell-prompt-pattern)
        !            69:         (setq telnet-new-line "\n"))
        !            70:        ((string-match "tops-20" string) ;;maybe add telnet-replace-c-g
        !            71:         (setq telnet-prompt-pattern  "[@>]*"))
        !            72:        ((string-match "its" string)
        !            73:         (setq telnet-prompt-pattern  "^[^*>]*[*>] *"))
        !            74:        ((string-match "explorer" string)  ;;explorer telnet needs work
        !            75:         (setq telnet-replace-c-g ?\n))
        !            76:        ))
        !            77: 
        !            78: (defun telnet-initial-filter (proc string)
        !            79:   ;For reading up to and including password; also will get machine type.
        !            80:   (cond ((string-match "passw" string)
        !            81:         (telnet-filter proc string)
        !            82:         (setq password (read-password))
        !            83:         (setq telnet-count 0)
        !            84:         (send-string proc (concat password  telnet-new-line)))
        !            85:        (t (telnet-check-software-type-initialize string)
        !            86:           (telnet-filter proc string)
        !            87:           (cond ((> telnet-count 4)
        !            88:                  (set-process-filter proc 'telnet-filter))
        !            89:                 (t (setq telnet-count (1+ telnet-count)))))))
        !            90: 
        !            91: (defun telnet-filter (proc string)
        !            92:   (save-excursion
        !            93:     (set-buffer (process-buffer proc))
        !            94:     (goto-char (point-max))
        !            95:     (let ((now (point)))
        !            96:       (insert string)
        !            97:       (subst-char-in-region now (point) ?\^m ?\ )
        !            98:       (and telnet-replace-c-g (subst-char-in-region now (point) ?\^g telnet-replace-c-g)))
        !            99:     (if (process-mark proc)
        !           100:        (set-marker (process-mark proc) (point)))
        !           101:     (if (and (integer-or-marker-p last-input-start)
        !           102:             (marker-position last-input-start)
        !           103:             telnet-remote-echoes)
        !           104:        (delete-region last-input-start last-input-end)))
        !           105:   (if (eq (process-buffer proc)
        !           106:          (current-buffer))
        !           107:       (goto-char (point-max))))
        !           108: 
        !           109: (defun delete-char-or-send-eof (arg killp)
        !           110:   "At end of buffer, send eof to subshell.  Otherwise delete character."
        !           111:   (interactive "p\nP")
        !           112:   (if (and (eobp) (not killp))
        !           113:       (process-send-eof)
        !           114:     (delete-char arg killp)))
        !           115: 
        !           116: (defun telnet-send-input ()
        !           117:   "Send input to remote host
        !           118: At end of buffer, sends all text after last output
        !           119: as input to the telnet, including a telnet-new-line inserted at the end.
        !           120: Not at end, copies current line to the end of the buffer and sends it,
        !           121: after first attempting to discard any prompt at the beginning of the line
        !           122: by matching the regexp that is the value of telnet-prompt-pattern if possible."
        !           123:  (interactive)
        !           124:  (let (copied)
        !           125:   (end-of-line)
        !           126:   (if (eobp)
        !           127:       (progn
        !           128:        (move-marker last-input-start
        !           129:                     (process-mark (get-buffer-process (current-buffer))))
        !           130:        (move-marker last-input-end (point)))
        !           131:     (beginning-of-line)
        !           132:     (re-search-forward telnet-prompt-pattern nil t)
        !           133:     (let ((copy (buffer-substring (point)
        !           134:                                  (progn (forward-line 1) (point)))))
        !           135:       (goto-char (point-max))
        !           136:       (move-marker last-input-start (point))
        !           137:       (insert copy) (setq copied t)
        !           138:       (move-marker last-input-end (point))))
        !           139:   (save-excursion
        !           140:     (goto-char last-input-start)
        !           141:     (let ((process (get-buffer-process (current-buffer))))
        !           142:       (send-region process last-input-start last-input-end)
        !           143:       (if (not copied) (send-string process telnet-new-line))
        !           144:       (set-marker (process-mark process) (point))))))
        !           145: 
        !           146: (defun telnet (arg)
        !           147:   "Open a network login connection to host named HOST (a string).
        !           148: Communication with HOST is recorded in a buffer *HOST-telnet*.
        !           149: Normally input is edited in Emacs and sent a line at a time."
        !           150:   (interactive "sOpen telnet connection to host: ")
        !           151:   (require 'shell)
        !           152:   (let ((name (concat arg "-telnet" )))
        !           153:     (switch-to-buffer (make-shell name "telnet"))
        !           154:     (set-process-filter (get-process name) 'telnet-initial-filter)
        !           155:     (erase-buffer)
        !           156:     (send-string  name (concat "open " arg "\n"))
        !           157:     (telnet-mode)
        !           158:     (setq telnet-count -16)))
        !           159: 
        !           160: (defun read-password ()
        !           161:   (let ((answ "") tem)
        !           162:     (while (not (= (setq tem (read-char)) ?\^m))
        !           163:       (setq answ (concat answ (char-to-string tem))))
        !           164:     answ))
        !           165: 
        !           166: (defun telnet-mode ()
        !           167:   "This mode is for use during telnet from a buffer to another
        !           168: host. It has most of the same commands as shell mode.
        !           169: There is a variable `telnet-interrupt-string' which is the character
        !           170: sent to try to stop execution of a job on the remote host.
        !           171: Data is sent to the remote host when `return' is typed.
        !           172: Thus if you may need to edit the data before sending you
        !           173: should use c-n to move down a line.  Then you can return
        !           174: to alter a previous line.  Of course you should not use this
        !           175: mode of telnet if you want to run emacs like programs on the
        !           176: remote host (at least not yet!).
        !           177: 
        !           178:  \\[telnet-send-input] Causes the last string of input to be sent to remote host
        !           179:  \\[delete-char-or-send-eof] Will delete a character (or send eof if it is the last character.
        !           180:  \\[kill-shell-input]  Kills the last shell-input
        !           181:  \\[backward-kill-word] runs backward-kill-word.
        !           182:  \\[send-process-next-char] sends the next keystroke directly without
        !           183: interpretation eg. useful for sending c-q or ` ' to continue typeout
        !           184: with more processing.
        !           185:  \\[telnet-interrupt-subjob] interrupts the current program running on the remote host.
        !           186:  \\[telnet-c-z] Sends a c-z to the remote host
        !           187: 
        !           188: Bugs:
        !           189: --Replace 
 by a space, really should remove.
        !           190: --For Unix interacts poorly with tcsh although csh,sh,ksh are ok."
        !           191:   (interactive)
        !           192:   (kill-all-local-variables)
        !           193:   (setq major-mode 'telnet-mode)
        !           194:   (setq mode-name "telnet")
        !           195:   (setq mode-line-format 
        !           196:        "--%1*%1*-Emacs: %17b   %M   %[(%m: %s)%]----%3p--%-")
        !           197:   (make-local-variable 'last-input-start)
        !           198:   (use-local-map telnet-mode-map)
        !           199:   (let ((tem telnet-prompt-pattern))
        !           200:     (make-local-variable 'telnet-prompt-pattern)
        !           201:     (setq telnet-prompt-pattern tem))
        !           202:   (make-local-variable 'telnet-interrupt-string)
        !           203:   (setq telnet-interrupt-string "")
        !           204:   (make-local-variable 'telnet-new-line)
        !           205:   (setq telnet-new-line "\r")
        !           206:   (make-local-variable 'last-input-start)
        !           207:   (setq last-input-start (make-marker))
        !           208:   (make-local-variable 'last-input-end)
        !           209:   (setq last-input-end (make-marker))
        !           210:   (make-local-variable 'telnet-remote-echoes)
        !           211:   (setq telnet-remote-echoes t)
        !           212:   (make-local-variable 'telnet-replace-c-g)
        !           213:   (setq telnet-replace-c-g nil))
        !           214: 
        !           215: 
        !           216: 

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