mandoc/roff.7 - diff

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Diff for /mandoc/roff.7 between version 1.69 and 1.74

version 1.69, 2015/01/29 00:33:57

version 1.74, 2015/08/29 22:40:05

Line 1

.\" $Id$

.\"

.\" Permission to use, copy, modify, and distribute this software for any

.\" purpose with or without fee is hereby granted, provided that the above

Line 665 produces

.D1 \efI\e^XtFree\e^\efP.

.Pp

in the input stream, and thus in the output: \fI\^XtFree\^\fP.

Each occurrence of \e\e$* is replaced with all the arguments,

joined together with single blank characters.

.Pp

Since macros and user-defined strings share a common string table,

defining a macro

Line 1057 If the first character of COND is

Line 1059 If the first character of COND is

.Pq string defined ,

.Sq e

.Pq even page ,

.Sq r

.Pq register accessed ,

.Sq t

.Pq troff mode ,

Line 1066 or

.Pq vroff mode ,

COND evaluates to false.

.It

If the first character of COND is

.Sq r ,

it evalutes to true if the rest of COND is the name of an existing

number register; otherwise, it evaluates to false.

.It

If COND starts with a parenthesis or with an optionally signed

integer number, it is evaluated according to the rules of

.Sx Numerical expressions

Line 1196 This is a Heirloom extension and currently unsupported

Line 1201 This is a Heirloom extension and currently unsupported

Set an input line trap.

Its syntax is as follows:

.Pp

.D1 Pf . Cm it Ar number macro

.D1 Pf . Cm it Ar expression macro

.Pp

The named

.Ar macro

will be invoked after processing the specified

will be invoked after processing the number of input text lines

.Ar number

specified by the numerical

of input text lines.

.Ar expression .

While evaluating the

.Ar expression ,

the unit suffixes described below

.Sx Scaling Widths

are ignored.

.Ss \&itc

Set an input line trap, not counting lines ending with \ec.

Currently unsupported.

Line 1829 For short names, there are variants

Line 1839 For short names, there are variants

.No \e* Ns Ar c

and

.No \e*( Ns Ar cc .

.Ss \e,

Left italic correction (groff extension); ignored by

.Xr mandoc 1 .

.Ss \e-

Special character

.Dq mathematical minus sign .

.Ss \e/

Right italic correction (groff extension); ignored by

.Xr mandoc 1 .

.Ss \e[ Ns Ar name ]

.Sx Special Characters

with names of arbitrary length, see

Line 2023 Print

Line 2039 Print

with zero width and height; ignored by

.Xr mandoc 1 .

.Ss \ez

Output the next character without advancing the cursor position;

Output the next character without advancing the cursor position.

approximated in

.Xr mandoc 1

by simply skipping the next character.

.Sh COMPATIBILITY

The

.Xr mandoc 1

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