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1.1 root 1: .\" @(#)add 6.1 (Berkeley) 4/17/86
2: .\"
3: .nr i 1i
4: .de H
5: 'sp |.5i-1
6: .tl 'May 15, 1977'''
7: 'sp |1i
8: ..
9: .de F
10: 'bp
11: ..
12: .wh 0 H
13: .wh -1i F
14: .de pp
15: .ft R
16: .sp
17: .ti 0
18: ..
19: .de h
20: .sp
21: .ti0
22: \fB\\$1\fP
23: .br
24: ..
25: .ce
26: .ftB
27: Summary of Changes to N/TROFF Since October 1976 Manual
28: .ft
29: .ta \niu
30: .in \niu
31: .h Options
32: .pp
33: -h (Nroff only) Output tabs used during horizontal spacing
34: to speed output as well as reduce output byte count.
35: Device tab settings assumed to be every
36: 8 nominal character widths.
37: The default settings of input (logical) tabs is also
38: initialized to every 8 nominal character widths.
39: .pp
40: -z Efficiently suppresses formatted output.
41: Only message output will occur (from "tm"s and diagnostics).
42: .h "Old Requests"
43: .pp
44: \&.ad\ c The adjustment type indicator "c" may now also be a number
45: previously obtained from the ".j" register (see below).
46: .pp
47: \&.so\ name The contents of file "name" will be interpolated
48: at the point the "so" is encountered.
49: Previously, the interpolation was done upon return to the file-reading input level.
50: .h "New Request"
51: .pp
52: \&.ab\ text \
53: Prints "text" on the message output and terminates
54: without further processing.
55: If "text" is missing, "User Abort." is printed.
56: Does not cause a break.
57: The output buffer is flushed.
58: .pp
59: \&.fz F N \
60: forces f_ont "F" to be in siz_e N.
61: N may have the form N, +N, or -N.
62: For example,
63: .fz 3 -2
64: .br
65: will cause an implicit \es-2 every time font 3 is entered,
66: and a corresponding \es+2 when it is left.
67: Special font characters occurring during the
68: reign of font F will have the same size modification.
69: If special characters are to be treated differently,
70: .fz S F N
71: .br
72: may be used to specify the size treatment of special
73: characters during font F.
74: For example,
75: .fz 3 -3
76: .fz S 3 -0
77: .br
78: will cause automatic reduction of font 3 by 3 points
79: while the special characters would not be affected.
80: Any ``.fp'' request specifying a font on some position
81: must precede ``.fz'' requests relating to that position.
82: .h "New Predefined Number Registers."
83: .pp
84: \&.k Read-only. Contains the horizontal size
85: of the text portion (without indent) of the current
86: partially collected output line, if any, in
87: the current environment.
88: .pp
89: \&.j Read-only. A number representing the current adjustment mode and type.
90: Can be saved and later given to the "ad" request to restore a previous mode.
91: .pp
92: \&.P Read-only.
93: 1 if the current page is being printed,
94: and zero otherwise.
95: .pp
96: \&.L Read-only.
97: Contains the current line-spacing parameter ("ls").
98: .pp
99: \&c. General register access to the input line-number
100: in the current input file.
101: Contains the same value as the read-only ".c" register.
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