1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
|
;;; lpr.el --- print Emacs buffer on line printer.
;; Copyright (C) 1985, 1988, 1992, 1994 Free Software Foundation, Inc.
;; Maintainer: FSF
;; Keywords: unix
;; This file is part of GNU Emacs.
;; GNU Emacs 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.
;; GNU Emacs 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.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs; see the file COPYING. If not, write to
;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
;;; Commentary:
;; Commands to send the region or a buffer your printer. Entry points
;; are `lpr-buffer', `print-buffer', lpr-region', or `print-region'; option
;; variables include `lpr-switches' and `lpr-command'.
;;; Code:
;;;###autoload
(defvar lpr-switches nil
"*List of strings to pass as extra switch args to `lpr' when it is invoked.")
(defvar lpr-add-options (eq system-type 'berkeley-unix)
"*Non-nil means construct -T and -J options for the `lpr'.")
;;;###autoload
(defvar lpr-command
(if (memq system-type '(usg-unix-v dgux hpux irix))
"lp" "lpr")
"*Name of program for printing a file.")
(defvar lpr-headers-switches
(if (memq system-type '(usg-unix-v dgux hpux irix)) nil "-p")
"*List of strings to use as options for `lpr' to request page headings.")
(defvar print-region-function nil
"Function to call to print the region on a printer.
See definition of `print-region-1' for calling conventions.")
(defvar lpr-page-header-program "pr"
"*Name of program for adding page headers to a file.")
(defvar lpr-page-header-switches nil
"*List of strings to use as options for `lpr-page-header-program'.")
;;;###autoload
(defun lpr-buffer ()
"Print buffer contents as with Unix command `lpr'.
`lpr-switches' is a list of extra switches (strings) to pass to lpr."
(interactive)
(print-region-1 (point-min) (point-max) lpr-switches nil))
;;;###autoload
(defun print-buffer ()
"Print buffer contents as with Unix command `lpr -p'.
`lpr-switches' is a list of extra switches (strings) to pass to lpr."
(interactive)
(print-region-1 (point-min) (point-max) lpr-switches t))
;;;###autoload
(defun lpr-region (start end)
"Print region contents as with Unix command `lpr'.
`lpr-switches' is a list of extra switches (strings) to pass to lpr."
(interactive "r")
(print-region-1 start end lpr-switches nil))
;;;###autoload
(defun print-region (start end)
"Print region contents as with Unix command `lpr -p'.
`lpr-switches' is a list of extra switches (strings) to pass to lpr."
(interactive "r")
(print-region-1 start end lpr-switches t))
(defun print-region-1 (start end switches page-headers)
;; On some MIPS system, having a space in the job name
;; crashes the printer demon. But using dashes looks ugly
;; and it seems to annoying to do for that MIPS system.
(let ((name (concat (buffer-name) " Emacs buffer"))
(title (concat (buffer-name) " Emacs buffer"))
(width tab-width))
(save-excursion
(message "Spooling...")
(if (/= tab-width 8)
(progn
(print-region-new-buffer start end)
(setq tab-width width)
(save-excursion
(goto-char end)
(setq end (point-marker)))
(untabify (point-min) (point-max))))
(if page-headers
(if lpr-headers-switches
;; On BSD, use an option to get page headers.
(setq switches (append (if (stringp lpr-headers-switches)
(list lpr-headers-switches)
lpr-headers-switches)
switches))
(print-region-new-buffer start end)
(call-process-region start end lpr-page-header-program
t t lpr-page-header-options)
(setq start (point-min) end (point-max))))
(apply (or print-region-function 'call-process-region)
(nconc (list start end lpr-command
nil nil nil)
(nconc (and lpr-add-options
(list "-J" name "-T" title))
switches)))
(if (markerp end)
(set-marker end nil))
(message "Spooling...done"))))
;; This function copies the text between start and end
;; into a new buffer, makes that buffer current,
;; and sets start and end to the buffer bounds.
;; start and end are used free.
(defun print-region-new-buffer (ostart oend)
(or (string= (buffer-name) " *spool temp*")
(let ((oldbuf (current-buffer)))
(set-buffer (get-buffer-create " *spool temp*"))
(widen) (erase-buffer)
(insert-buffer-substring oldbuf ostart oend)
(setq start (point-min) end (point-max)))))
(defun printify-region (begin end)
"Turn nonprinting characters (other than TAB, LF, SPC, RET, and FF)
in the current buffer into printable representations as control or
hexadecimal escapes."
(interactive "r")
(save-excursion
(goto-char begin)
(let (c)
(while (re-search-forward "[\^@-\^h\^k\^n-\^_\177-\377]" end t)
(setq c (preceding-char))
(delete-backward-char 1)
(insert
(if (< c ?\ )
(format "\\^%c" (+ c ?@))
(format "\\%02x" c)))))))
;;; lpr.el ends here
|
