correct the spacing after in-line equations

[mandoc.git] / roff.7

diff --git a/roff.7 b/roff.7
index 40f520bc86703a0bbaab72229bd447304b709705..6ac48a7e2e9c20c297a19025c12d946ff2867c1a 100644 (file)
--- a/roff.7
+++ b/roff.7
@@ -1,4 +1,4 @@
-.\"    $Id: roff.7,v 1.54 2014/04/08 01:37:27 schwarze Exp $
+.\"    $Id: roff.7,v 1.58 2014/09/07 00:21:53 schwarze Exp $
 .\"
 .\" Copyright (c) 2010, 2011, 2012 Kristaps Dzonsons <kristaps@bsd.lv>
 .\" Copyright (c) 2010, 2011, 2013, 2014 Ingo Schwarze <schwarze@openbsd.org>
@@ -15,7 +15,7 @@
 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"
-.Dd $Mdocdate: April 8 2014 $
+.Dd $Mdocdate: September 7 2014 $
 .Dt ROFF 7
 .Os
 .Sh NAME
@@ -239,8 +239,9 @@ pica (~1/6 inch)
 .It p
 point (~1/72 inch)
 .It f
-synonym for
+scale
 .Sq u
+by 65536
 .It v
 default vertical span
 .It m
@@ -254,7 +255,7 @@ width of rendered
 .Pq en
 character
 .It u
-default horizontal span
+default horizontal span for the terminal
 .It M
 mini-em (~1/100 em)
 .El
@@ -262,7 +263,6 @@ mini-em (~1/100 em)
 Using anything other than
 .Sq m ,
 .Sq n ,
-.Sq u ,
 or
 .Sq v
 is necessarily non-portable across output media.
@@ -409,24 +409,21 @@ and the number of arguments is not checked.
 Append to a macro definition.
 The syntax of this request is the same as that of
 .Sx \&de .
-It is currently ignored by
-.Xr mandoc 1 ,
-as are its children.
 .Ss \&ami
 Append to a macro definition, specifying the macro name indirectly.
 The syntax of this request is the same as that of
 .Sx \&dei .
-It is currently ignored by
-.Xr mandoc 1 ,
-as are its children.
 .Ss \&am1
 Append to a macro definition, switching roff compatibility mode off
 during macro execution.
 The syntax of this request is the same as that of
 .Sx \&de1 .
-It is currently ignored by
-.Xr mandoc 1 ,
-as are its children.
+Since
+.Xr mandoc 1
+does not implement
+.Nm
+compatibility mode at all, it handles this request as an alias for
+.Sx \&am .
 .Ss \&as
 Append to a user-defined string.
 The syntax of this request is the same as that of
@@ -554,9 +551,13 @@ Define a
 macro, specifying the macro name indirectly.
 The syntax of this request is the same as that of
 .Sx \&de .
-It is currently ignored by
-.Xr mandoc 1 ,
-as are its children.
+The request
+.Pp
+.D1 Pf . Cm \&dei Ar name Op Ar end
+.Pp
+has the same effect as:
+.Pp
+.D1 Pf . Cm \&de No \e* Ns Bo Ar name Bc Op \e* Ns Bq Ar end
 .Ss \&de1
 Define a
 .Nm
@@ -755,7 +756,7 @@ If COND starts with a parenthesis or with an optionally signed
 integer number, it is evaluated according to the rules of
 .Sx Numerical expressions
 explained below.
-It evaluates to true if the the result is positive,
+It evaluates to true if the result is positive,
 or to false if the result is zero or negative.
 .It
 Otherwise, the first character of COND is regarded as a delimiter
@@ -934,6 +935,11 @@ 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 \&pl
+Change page length.
+This line-scoped request is intended to take one height argument.
+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.
@@ -1347,6 +1353,12 @@ refers to groff version 1.15.
 .Pp
 .Bl -dash -compact
 .It
+The
+.Sq u
+scaling unit is the default terminal unit.
+In traditional troff systems, this unit would change depending on the
+output media.
+.It
 In mandoc, the
 .Sx \&EQ ,
 .Sx \&TE ,