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6594deb0 ER |
1 | ;;; lpr.el --- print Emacs buffer on line printer. |
2 | ||
46947372 | 3 | ;; Copyright (C) 1985, 1988, 1992 Free Software Foundation, Inc. |
d6c7e99a RS |
4 | |
5 | ;; This file is part of GNU Emacs. | |
6 | ||
7 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
8 | ;; it under the terms of the GNU General Public License as published by | |
9 | ;; the Free Software Foundation; either version 1, or (at your option) | |
10 | ;; any later version. | |
11 | ||
12 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
13 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | ;; GNU General Public License for more details. | |
16 | ||
17 | ;; You should have received a copy of the GNU General Public License | |
18 | ;; along with GNU Emacs; see the file COPYING. If not, write to | |
19 | ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
20 | ||
21 | ||
6503cec3 JB |
22 | ;;;###autoload |
23 | (defconst lpr-switches nil "\ | |
24 | *List of strings to pass as extra switch args to lpr when it is invoked.") | |
d6c7e99a RS |
25 | |
26 | (defvar lpr-command (if (eq system-type 'usg-unix-v) | |
27 | "lp" "lpr") | |
46947372 | 28 | "*Shell command for printing a file") |
d6c7e99a RS |
29 | |
30 | (defvar print-region-function nil | |
31 | "Function to call to print the region on a printer. | |
ac5b56bc | 32 | See definition of `print-region-1' for calling conventions.") |
d6c7e99a | 33 | |
7229064d | 34 | ;;;###autoload |
d6c7e99a RS |
35 | (defun lpr-buffer () |
36 | "Print buffer contents as with Unix command `lpr'. | |
37 | `lpr-switches' is a list of extra switches (strings) to pass to lpr." | |
38 | (interactive) | |
39 | (print-region-1 (point-min) (point-max) lpr-switches nil)) | |
40 | ||
7229064d | 41 | ;;;###autoload |
d6c7e99a RS |
42 | (defun print-buffer () |
43 | "Print buffer contents as with Unix command `lpr -p'. | |
44 | `lpr-switches' is a list of extra switches (strings) to pass to lpr." | |
45 | (interactive) | |
46 | (print-region-1 (point-min) (point-max) lpr-switches t)) | |
47 | ||
7229064d | 48 | ;;;###autoload |
d6c7e99a RS |
49 | (defun lpr-region (start end) |
50 | "Print region contents as with Unix command `lpr'. | |
51 | `lpr-switches' is a list of extra switches (strings) to pass to lpr." | |
52 | (interactive "r") | |
53 | (print-region-1 start end lpr-switches nil)) | |
54 | ||
7229064d | 55 | ;;;###autoload |
d6c7e99a RS |
56 | (defun print-region (start end) |
57 | "Print region contents as with Unix command `lpr -p'. | |
58 | `lpr-switches' is a list of extra switches (strings) to pass to lpr." | |
59 | (interactive "r") | |
60 | (print-region-1 start end lpr-switches t)) | |
61 | ||
62 | (defun print-region-1 (start end switches page-headers) | |
63 | (let ((name (concat (buffer-name) " Emacs buffer")) | |
64 | (width tab-width)) | |
65 | (save-excursion | |
66 | (message "Spooling...") | |
67 | (if (/= tab-width 8) | |
68 | (progn | |
69 | (print-region-new-buffer start end) | |
70 | (setq tab-width width) | |
71 | (untabify (point-min) (point-max)))) | |
72 | (if page-headers | |
73 | (if (eq system-type 'usg-unix-v) | |
74 | (progn | |
75 | (print-region-new-buffer) | |
76 | (call-process-region start end "pr" t t nil)) | |
77 | ;; On BSD, use an option to get page headers. | |
78 | (setq switches (cons "-p" switches)))) | |
79 | (apply (or print-region-function 'call-process-region) | |
80 | (nconc (list start end lpr-command | |
81 | nil nil nil) | |
82 | (nconc (and (eq system-type 'berkeley-unix) | |
83 | (list "-J" name "-T" name)) | |
84 | switches))) | |
85 | (message "Spooling...done")))) | |
86 | ||
87 | ;; This function copies the text between start and end | |
88 | ;; into a new buffer, makes that buffer current, | |
89 | ;; and sets start and end to the buffer bounds. | |
90 | ;; start and end are used free. | |
91 | (defun print-region-new-buffer () | |
92 | (or (string= (buffer-name) " *spool temp*") | |
93 | (let ((oldbuf (current-buffer))) | |
94 | (set-buffer (get-buffer-create " *spool temp*")) | |
95 | (widen) (erase-buffer) | |
96 | (insert-buffer-substring oldbuf start end) | |
97 | (setq start (point-min) end (point-max))))) | |
6594deb0 ER |
98 | |
99 | ;;; lpr.el ends here |