Annotation of GNUtools/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 free software; you can redistribute it and/or modify
        !             6: ;; it under the terms of the GNU General Public License as published by
        !             7: ;; the Free Software Foundation; either version 1, or (at your option)
        !             8: ;; any later version.
        !             9: 
        !            10: ;; GNU Emacs is distributed in the hope that it will be useful,
        !            11: ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
        !            12: ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        !            13: ;; GNU General Public License for more details.
        !            14: 
        !            15: ;; You should have received a copy of the GNU General Public License
        !            16: ;; along with GNU Emacs; see the file COPYING.  If not, write to
        !            17: ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
        !            18: 
        !            19: 
        !            20: ;; Author William F. Schelter
        !            21: 
        !            22: ;;to do fix software types for lispm:
        !            23: ;;to eval current expression.  Also to try to send escape keys correctly.
        !            24: ;;essentially we'll want the rubout-handler off.
        !            25: 
        !            26: (defvar telnet-new-line "\r")
        !            27: (defvar telnet-mode-map nil)
        !            28: (defvar telnet-prompt-pattern "^[^#$%>]*[#$%>] *")
        !            29: (defvar telnet-interrupt-string "\^c" "String sent by C-c.")
        !            30: (defvar telnet-count 0)
        !            31: (defvar telnet-replace-c-g nil)
        !            32: (defvar telnet-remote-echoes nil)
        !            33: 
        !            34: (defun telnet-interrupt-subjob ()
        !            35:   (interactive)
        !            36:   "Interrupt the program running through telnet on the remote host."
        !            37:   (send-string nil telnet-interrupt-string))
        !            38: 
        !            39: (defun telnet-c-z ()
        !            40:   (interactive)
        !            41:   (send-string nil ""))
        !            42: 
        !            43: (defun send-process-next-char ()
        !            44:   (interactive)
        !            45:   (send-string nil
        !            46:               (char-to-string
        !            47:                (let ((inhibit-quit t))
        !            48:                  (prog1 (read-char)
        !            49:                    (setq quit-flag nil))))))
        !            50: 
        !            51: (setq telnet-mode-map (make-sparse-keymap))
        !            52: 
        !            53: (progn
        !            54:   (define-key telnet-mode-map "\C-m" 'telnet-send-input)
        !            55:   (define-key telnet-mode-map "\C-j" 'telnet-send-input)
        !            56:   (define-key telnet-mode-map "\C-c\C-d" 'shell-send-eof)
        !            57:   (define-key telnet-mode-map "\C-c\C-q" 'send-process-next-char)
        !            58:   (define-key telnet-mode-map "\C-c\C-c" 'telnet-interrupt-subjob) 
        !            59:   (define-key telnet-mode-map "\C-c\C-z" 'telnet-c-z)
        !            60:   (define-key telnet-mode-map "\C-c\C-u" 'kill-shell-input)
        !            61:   (define-key telnet-mode-map "\C-c\C-w" 'backward-kill-word)
        !            62:   (define-key telnet-mode-map "\C-c\C-o" 'kill-output-from-shell)
        !            63:   (define-key telnet-mode-map "\C-c\C-r" 'show-output-from-shell))
        !            64: 
        !            65: ;;maybe should have a flag for when have found type
        !            66: (defun telnet-check-software-type-initialize (string)
        !            67:   "Tries to put correct initializations in.  Needs work."
        !            68:   (cond ((string-match "unix" string)
        !            69:         (setq telnet-prompt-pattern shell-prompt-pattern)
        !            70:         (setq telnet-new-line "\n"))
        !            71:        ((string-match "tops-20" string) ;;maybe add telnet-replace-c-g
        !            72:         (setq telnet-prompt-pattern  "[@>]*"))
        !            73:        ((string-match "its" string)
        !            74:         (setq telnet-prompt-pattern  "^[^*>]*[*>] *"))
        !            75:        ((string-match "explorer" string)  ;;explorer telnet needs work
        !            76:         (setq telnet-replace-c-g ?\n))
        !            77:        ))
        !            78: 
        !            79: (defun telnet-initial-filter (proc string)
        !            80:   ;For reading up to and including password; also will get machine type.
        !            81:   (cond ((string-match "No such host" string)
        !            82:         (kill-buffer (process-buffer proc))
        !            83:         (error "No such host."))
        !            84:        ((string-match "passw" string)
        !            85:         (telnet-filter proc string)
        !            86:         (let* ((echo-keystrokes 0)
        !            87:                (password (read-password)))
        !            88:           (setq telnet-count 0)
        !            89:           (send-string proc (concat password  telnet-new-line))))
        !            90:        (t (telnet-check-software-type-initialize string)
        !            91:           (telnet-filter proc string)
        !            92:           (cond ((> telnet-count 4)
        !            93:                  (set-process-filter proc 'telnet-filter))
        !            94:                 (t (setq telnet-count (1+ telnet-count)))))))
        !            95: 
        !            96: (defun telnet-filter (proc string)
        !            97:   (save-excursion
        !            98:     (set-buffer (process-buffer proc))
        !            99:     (goto-char (point-max))
        !           100:     (let ((now (point)))
        !           101:       (insert string)
        !           102:       (subst-char-in-region now (point) ?\^m ?\ )
        !           103:       (and telnet-replace-c-g
        !           104:           (subst-char-in-region now (point) ?\^g telnet-replace-c-g)))
        !           105:     (if (process-mark proc)
        !           106:        (set-marker (process-mark proc) (point)))
        !           107:     (if (and (integer-or-marker-p last-input-start)
        !           108:             (marker-position last-input-start)
        !           109:             telnet-remote-echoes)
        !           110:        (delete-region last-input-start last-input-end)))
        !           111:   (if (eq (process-buffer proc)
        !           112:          (current-buffer))
        !           113:       (goto-char (point-max))))
        !           114: 
        !           115: (defun delete-char-or-send-eof (arg killp)
        !           116:   "At end of buffer, send eof to subshell.  Otherwise delete character."
        !           117:   (interactive "p\nP")
        !           118:   (if (and (eobp) (not killp))
        !           119:       (process-send-eof)
        !           120:     (delete-char arg killp)))
        !           121: 
        !           122: (defun telnet-send-input ()
        !           123:   "Send input to remote host
        !           124: At end of buffer, sends all text after last output
        !           125: as input to the telnet, including a telnet-new-line inserted at the end.
        !           126: Not at end, copies current line to the end of the buffer and sends it,
        !           127: after first attempting to discard any prompt at the beginning of the line
        !           128: by matching the regexp that is the value of telnet-prompt-pattern if possible."
        !           129:  (interactive)
        !           130:  (let (copied)
        !           131:   (end-of-line)
        !           132:   (if (eobp)
        !           133:       (progn
        !           134:        (move-marker last-input-start
        !           135:                     (process-mark (get-buffer-process (current-buffer))))
        !           136:        (move-marker last-input-end (point)))
        !           137:     (beginning-of-line)
        !           138:     (re-search-forward telnet-prompt-pattern nil t)
        !           139:     (let ((copy (buffer-substring (point)
        !           140:                                  (progn (forward-line 1) (point)))))
        !           141:       (goto-char (point-max))
        !           142:       (move-marker last-input-start (point))
        !           143:       (insert copy) (setq copied t)
        !           144:       (move-marker last-input-end (point))))
        !           145:   (save-excursion
        !           146:     (goto-char last-input-start)
        !           147:     (let ((process (get-buffer-process (current-buffer))))
        !           148:       (send-region process last-input-start last-input-end)
        !           149:       (if (not copied) (send-string process telnet-new-line))
        !           150:       (set-marker (process-mark process) (point))))))
        !           151: 
        !           152: (defun telnet (arg)
        !           153:   "Open a network login connection to host named HOST (a string).
        !           154: Communication with HOST is recorded in a buffer *HOST-telnet*.
        !           155: Normally input is edited in Emacs and sent a line at a time."
        !           156:   (interactive "sOpen telnet connection to host: ")
        !           157:   (require 'shell)
        !           158:   (let ((name (concat arg "-telnet" )))
        !           159:     (switch-to-buffer (make-shell name "telnet"))
        !           160:     (set-process-filter (get-process name) 'telnet-initial-filter)
        !           161:     (accept-process-output (get-process name))
        !           162:     (erase-buffer)
        !           163:     (send-string  name (concat "open " arg "\n"))
        !           164:     (telnet-mode)
        !           165:     (setq telnet-count -16)))
        !           166: 
        !           167: (defun read-password ()
        !           168:   (let ((answ "") tem)
        !           169:     (while (prog1 (not (memq (setq tem (read-char))
        !           170:                             '(?\C-m ?\n ?\C-g)))
        !           171:             (setq quit-flag nil))
        !           172:       (setq answ (concat answ (char-to-string tem))))
        !           173:     answ))
        !           174: 
        !           175: (defun telnet-mode ()
        !           176:   "This mode is for use during telnet from a buffer to another
        !           177: host. It has most of the same commands as shell mode.
        !           178: There is a variable `telnet-interrupt-string' which is the character
        !           179: sent to try to stop execution of a job on the remote host.
        !           180: Data is sent to the remote host when `return' is typed.
        !           181: Thus if you may need to edit the data before sending you
        !           182: should use c-n to move down a line.  Then you can return
        !           183: to alter a previous line.  Of course you should not use this
        !           184: mode of telnet if you want to run emacs like programs on the
        !           185: remote host (at least not yet!).
        !           186: 
        !           187: The following commands imitate the usual Unix interrupt and
        !           188: editing control characters:
        !           189: \\{telnet-mode-map}
        !           190: 
        !           191: Bugs:
        !           192: --Replace 
 by a space, really should remove.
        !           193: --For Unix interacts poorly with tcsh although csh,sh,ksh are ok."
        !           194:   (interactive)
        !           195:   (kill-all-local-variables)
        !           196:   (setq major-mode 'telnet-mode)
        !           197:   (setq mode-name "Telnet")
        !           198:   (setq mode-line-process '(": %s"))
        !           199:   (make-local-variable 'last-input-start)
        !           200:   (use-local-map telnet-mode-map)
        !           201:   (let ((tem telnet-prompt-pattern))
        !           202:     (make-local-variable 'telnet-prompt-pattern)
        !           203:     (setq telnet-prompt-pattern tem))
        !           204:   (make-local-variable 'telnet-interrupt-string)
        !           205:   (setq telnet-interrupt-string "")
        !           206:   (make-local-variable 'telnet-new-line)
        !           207:   (setq telnet-new-line "\r")
        !           208:   (make-local-variable 'last-input-start)
        !           209:   (setq last-input-start (make-marker))
        !           210:   (make-local-variable 'last-input-end)
        !           211:   (setq last-input-end (make-marker))
        !           212:   (make-local-variable 'telnet-remote-echoes)
        !           213:   (setq telnet-remote-echoes t)
        !           214:   (make-local-variable 'telnet-replace-c-g)
        !           215:   (setq telnet-replace-c-g nil))
        !           216: 
        !           217: 
        !           218: 

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