-.\" $Id: roff.7,v 1.25 2011/01/25 00:40:14 schwarze Exp $
+.\" $Id: roff.7,v 1.32 2011/09/02 19:37:35 kristaps Exp $
.\"
.\" Copyright (c) 2010 Kristaps Dzonsons <kristaps@bsd.lv>
.\" Copyright (c) 2010 Ingo Schwarze <schwarze@openbsd.org>
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.\"
-.Dd $Mdocdate: January 25 2011 $
+.Dd $Mdocdate: September 2 2011 $
.Dt ROFF 7
.Os
.Sh NAME
macro arguments may optionally be quoted by enclosing them
in double quote characters
.Pq Sq \(dq .
-To be recognized as the beginning of a quoted argument, the opening
+To be recognised as the beginning of a quoted argument, the opening
quote character must be preceded by a space character.
.Pp
A quoted argument may contain whitespace, and pairs of double quote
The
.Xr mandoc 1
.Nm
-parser recognizes the following requests.
+parser recognises the following requests.
Note that the
.Nm
language defines many more requests not implemented in
.Ss \&ad
Set line adjustment mode.
This line-scoped request is intended to have one argument to select
-normal, left, right, or center adjustment for subsequent text.
+normal, left, right, or centre adjustment for subsequent text.
Currently, it is ignored including its arguments,
and the number of arguments is not checked.
.Ss \&am
The syntax of this request is similar to
.Sx \&if
except that the conditional is missing.
+.Ss \&EN
+End an equation block.
+See
+.Sx \&EQ .
+.Ss \&EQ
+Begin an equation block.
+See
+.Xr eqn 7
+for a description of the equation language.
.Ss \&hy
Set automatic hyphenation mode.
This line-scoped request is currently ignored.
The scope of a conditional is always parsed, but only executed if the
conditional evaluates to true.
.Pp
-Note that text following an
-.Sq \&.\e}
-escape sequence is discarded.
-Furthermore, if an explicit closing sequence
+Note that the
.Sq \e}
-is specified in a free-form line, the entire line is accepted within the
-scope of the prior request, not only the text preceding the close, with the
+is converted into a zero-width escape sequence if not passed as a
+standalone macro
+.Sq \&.\e} .
+For example,
+.Pp
+.D1 \&.Fl a \e} b
+.Pp
+will result in
.Sq \e}
-collapsing into a zero-width space.
+being considered an argument of the
+.Sq \&Fl
+macro.
.Ss \&ig
Ignore input.
Its syntax can be either
.Cm \&Sh
macro will reset this register.
.El
+.Ss \&ns
+Turn on no-space mode.
+This line-scoped request is intended to take no arguments.
+Currently, it is ignored including its arguments,
+and the number of arguments is not checked.
+.Ss \&ps
+Change point size.
+This line-scoped request is intended to take one numerical argument.
+Currently, it is ignored including its arguments,
+and the number of arguments is not checked.
.Ss \&so
Include a source file.
Its syntax is as follows:
will be read and its contents processed as input in place of the
.Sq \&.so
request line.
-To avoid inadvertant inclusion of unrelated files,
+To avoid inadvertent inclusion of unrelated files,
.Xr mandoc 1
only accepts relative paths not containing the strings
.Qq ../
and
.Qq /.. .
+.Ss \&ta
+Set tab stops.
+This line-scoped request can take an arbitrary number of arguments.
+Currently, it is ignored including its arguments.
.Ss \&tr
Output character translation.
-This request is intended to have one argument,
-consisting of an even number of characters.
-Currently, it is ignored including its arguments,
-and the number of arguments is not checked.
+Its syntax is as follows:
+.Pp
+.D1 Pf \. Cm \&tr Ar [ab]+
+.Pp
+Pairs of
+.Ar ab
+characters are replaced
+.Ar ( a
+for
+.Ar b ) .
+Replacement (or origin) characters may also be character escapes; thus,
+.Pp
+.Dl tr \e(xx\e(yy
+.Pp
+replaces all invocations of \e(xx with \e(yy.
.Ss \&T&
Re-start a table layout, retaining the options of the prior table
invocation.
.Pp
.Bl -dash -compact
.It
+In mandoc, the
+.Sx \&EQ ,
+.Sx \&TE ,
+.Sx \&TS ,
+and
+.Sx \&T& ,
+macros are considered regular macros.
+In all other
+.Nm
+implementations, these are special macros that must be specified without
+spacing between the control character (which must be a period) and the
+macro name.
+.It
The
.Cm nS
register is only compatible with OpenBSD's groff-1.15.
.El
.Sh SEE ALSO
.Xr mandoc 1 ,
+.Xr eqn 7 ,
.Xr man 7 ,
.Xr mandoc_char 7 ,
.Xr mdoc 7 ,
and Brian W. Kernighan rewrote it in C in 1975.
.Sh AUTHORS
.An -nosplit
-This partial
+This
.Nm
reference was written by
-.An Kristaps Dzonsons Aq kristaps@bsd.lv
+.An Kristaps Dzonsons ,
+.Mt kristaps@bsd.lv ;
and
-.An Ingo Schwarze Aq schwarze@openbsd.org .
+.An Ingo Schwarze ,
+.Mt schwarze@openbsd.org .