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- .\" @(#)add 6.1 (Berkeley) 4/17/86
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- .tl 'May 15, 1977'''
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- 'bp
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- .de pp
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- .ftB
- Summary of Changes to N/TROFF Since October 1976 Manual
- .ft
- .ta \niu
- .in \niu
- .h Options
- .pp
- -h (Nroff only) Output tabs used during horizontal spacing
- to speed output as well as reduce output byte count.
- Device tab settings assumed to be every
- 8 nominal character widths.
- The default settings of input (logical) tabs is also
- initialized to every 8 nominal character widths.
- .pp
- -z Efficiently suppresses formatted output.
- Only message output will occur (from "tm"s and diagnostics).
- .h "Old Requests"
- .pp
- \&.ad\ c The adjustment type indicator "c" may now also be a number
- previously obtained from the ".j" register (see below).
- .pp
- \&.so\ name The contents of file "name" will be interpolated
- at the point the "so" is encountered.
- Previously, the interpolation was done upon return to the file-reading input level.
- .h "New Request"
- .pp
- \&.ab\ text \
- Prints "text" on the message output and terminates
- without further processing.
- If "text" is missing, "User Abort." is printed.
- Does not cause a break.
- The output buffer is flushed.
- .pp
- \&.fz F N \
- forces f_ont "F" to be in siz_e N.
- N may have the form N, +N, or -N.
- For example,
- .fz 3 -2
- .br
- will cause an implicit \es-2 every time font 3 is entered,
- and a corresponding \es+2 when it is left.
- Special font characters occurring during the
- reign of font F will have the same size modification.
- If special characters are to be treated differently,
- .fz S F N
- .br
- may be used to specify the size treatment of special
- characters during font F.
- For example,
- .fz 3 -3
- .fz S 3 -0
- .br
- will cause automatic reduction of font 3 by 3 points
- while the special characters would not be affected.
- Any ``.fp'' request specifying a font on some position
- must precede ``.fz'' requests relating to that position.
- .h "New Predefined Number Registers."
- .pp
- \&.k Read-only. Contains the horizontal size
- of the text portion (without indent) of the current
- partially collected output line, if any, in
- the current environment.
- .pp
- \&.j Read-only. A number representing the current adjustment mode and type.
- Can be saved and later given to the "ad" request to restore a previous mode.
- .pp
- \&.P Read-only.
- 1 if the current page is being printed,
- and zero otherwise.
- .pp
- \&.L Read-only.
- Contains the current line-spacing parameter ("ls").
- .pp
- \&c. General register access to the input line-number
- in the current input file.
- Contains the same value as the read-only ".c" register.
-