mandoc/roff.7 - diff

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Diff for /mandoc/roff.7 between version 1.109 and 1.112

version 1.109, 2018/12/16 00:17:02

version 1.112, 2019/04/21 22:48:58

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 44 utility supports a subset of

requests and escapes.

Even though this manual page lists all

.Nm

requests, it only has partial information about requests not supported by

requests and escape sequences, it only contains partial information

about requests not supported by

.Xr mandoc 1

and about language features that do not matter for manual pages.

For complete

Line 86 indicates the start of an escape sequence, used for ex

Line 87 indicates the start of an escape sequence, used for ex

.Sx Comments

and

.Sx Special Characters .

For a listing of escape sequences, consult the

For a complete listing of escape sequences, consult the

.Sx ESCAPE SEQUENCE REFERENCE

below.

.Ss Comments

Line 246 centimetre

Line 247 centimetre

.It i

inch

.It P

pica (~1/6 inch)

pica (1/6 inch)

.It p

point (~1/72 inch)

point (1/72 inch)

.It f

scale

.Sq u

Line 268 character

Line 269 character

.It u

default horizontal span for the terminal

.It M

mini-em (~1/100 em)

mini-em (1/100 em)

.El

.Pp

Using anything other than

Line 502 This is a Heirloom extension and currently unsupported

Line 503 This is a Heirloom extension and currently unsupported

.It Ic \&br

Break the output line.

.It Ic \&break

Break out of a

Break out of the innermost

.Ic \&while

loop.

Currently unsupported.

.It Ic \&breakchar Ar char ...

Optional line break characters.

This is a Heirloom extension and currently ignored.

Line 640 macros, whichever applies to the document in question.

.Pp

Specifying a custom

.Ar endmacro

macro works in the same way as for

works in the same way as for

.Ic \&ig ;

namely, the call to

.Sq Pf . Ar endmacro

Line 907 This is a Heirloom extension and currently ignored.

Enable or disable an OpenType feature.

This is a Heirloom extension and currently ignored.

.It Ic \&fi

Switch to fill mode.

Break the output line and switch to fill mode,

See

which is active by default but can be ended with the

.Xr man 7 .

.Ic \&nf

Ignored in

request.

.Xr mdoc 7 .

In fill mode, input from subsequent input lines is added to

the same output line until the next word no longer fits,

at which point the output line is broken.

This request is implied by the

.Xr mdoc 7

.Ic \&Sh

macro and by the

.Xr man 7

.Ic \&SH ,

.Ic \&SS ,

and

.Ic \&EE

macros.

.It Ic \&fkern Ar font minkern

Control the use of kerning tables for a font.

This is a Heirloom extension and currently ignored.

Line 1346 Declare the need for the specified minimum vertical sp

Line 1358 Declare the need for the specified minimum vertical sp

before the next trap or the bottom of the page.

Currently ignored.

.It Ic \&nf

Switch to no-fill mode.

Break the output line and switch to no-fill mode.

See

Subsequent input lines are kept together on the same output line

.Xr man 7 .

even when exceeding the right margin,

Ignored by

and line breaks in subsequent input cause output line breaks.

.Xr mdoc 7 .

This request is implied by the

.Xr mdoc 7

.Ic \&Bd Fl unfilled

and

.Ic \&Bd Fl literal

macros and by the

.Xr man 7

.Ic \&EX

macro.

The

.Ic \&fi

request switches back to the default fill mode.

.It Ic \&nh

Turn off automatic hyphenation mode.

Currently ignored.

Line 1849 The

Line 1872 The

.Xr mandoc 1

.Nm

parser recognises the following escape sequences.

Note that the

.Nm

language defines more escape sequences not implemented in

.Xr mandoc 1 .

.Xr mdoc 7

and

Line 1862 described in the

Line 1881 described in the

.Sx LANGUAGE SYNTAX

section above.

.Pp

A backslash followed by any character not listed here

.Xr mandoc 1 ,

a backslash followed by any character not listed here

simply prints that character itself.

.Bl -tag -width Ds

.It Ic \e<newline>

Line 1875 on both lines together as if it were on a single input

Line 1892 on both lines together as if it were on a single input

The escape sequence backslash-space

.Pq Sq \e\ \&

is an unpaddable space-sized non-breaking space character; see

.Sx Whitespace .

.Sx Whitespace

and

.Xr mandoc_char 7 .

.It Ic \e!

Embed text up to and including the end of the input line into the

current diversion or into intermediate output without interpreting

Line 1897 Macro argument expansion, see

Line 1916 Macro argument expansion, see

Hyphenation allowed at this point of the word; ignored by

.Xr mandoc 1 .

.It Ic \e&

Non-printing zero-width character; see

Non-printing zero-width character,

.Sx Whitespace .

often used for various kinds of escaping; see

.Sx Whitespace ,

.Xr mandoc_char 7 ,

and the

.Dq MACRO SYNTAX

and

.Dq Delimiters

sections in

.Xr mdoc 7 .

.It Ic \e\(aq

Acute accent special character; use

.Ic \e(aa

Line 1944 Left italic correction (groff extension); ignored by

Line 1971 Left italic correction (groff extension); ignored by

.Xr mandoc 1 .

.It Ic \e-

Special character

.Dq mathematical minus sign .

.Dq mathematical minus sign ;

see

.Xr mandoc_char 7

for details.

.It Ic \e/

Right italic correction (groff extension); ignored by

.Xr mandoc 1 .

Line 1998 if

Line 2028 if

.Ar string

conforms to the syntax of

.Sx Numerical expressions

explained above and

explained above or

.Sq 0

otherwise.

.It Ic \eb\(aq Ns Ar string Ns Ic \(aq

Line 2022 Move down by half a line; ignored by

Line 2052 Move down by half a line; ignored by

Escape character intended to not be interpreted in copy mode.

.Xr mandoc 1 ,

it does the same as

it currently does the same as

.Ic \e

itself for now.

itself.

.It Ic \ee

Backslash special character.

.It Ic \eF[ Ns Ar name Ns Ic \&]

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