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author | Ingo Schwarze <schwarze@openbsd.org> | 2013-12-15 21:23:52 +0000 |
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committer | Ingo Schwarze <schwarze@openbsd.org> | 2013-12-15 21:23:52 +0000 |
commit | a303f40898d21cb0d5552a2252710ddc741a1cec (patch) | |
tree | d38b1f7764118039b866dffbf2f2395e33241aff /roff.7 | |
parent | 9e9da087dda5194812500db223832a351d496b16 (diff) | |
download | mandoc-a303f40898d21cb0d5552a2252710ddc741a1cec.tar.gz mandoc-a303f40898d21cb0d5552a2252710ddc741a1cec.tar.zst mandoc-a303f40898d21cb0d5552a2252710ddc741a1cec.zip |
The "value" argument to the roff(7) .nr requests ends right before
the first non-digit character. While here, implement and document
an optional sign, requesting increment or decrement, as documented
in the Ossanna/Kernighan/Ritter troff manual and supported by groff.
Reported by bentley@ on discuss@.
Diffstat (limited to 'roff.7')
-rw-r--r-- | roff.7 | 15 |
1 files changed, 9 insertions, 6 deletions
@@ -1,4 +1,4 @@ -.\" $Id: roff.7,v 1.44 2013/10/22 20:38:00 schwarze Exp $ +.\" $Id: roff.7,v 1.45 2013/12/15 21:23:52 schwarze Exp $ .\" .\" Copyright (c) 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv> .\" Copyright (c) 2010, 2011 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: October 22 2013 $ +.Dd $Mdocdate: December 15 2013 $ .Dt ROFF 7 .Os .Sh NAME @@ -814,19 +814,22 @@ the name of the request, macro or string to be undefined. Currently, it is ignored including its arguments, and the number of arguments is not checked. .Ss \&nr -Define a register. +Define or change a register. A register is an arbitrary string value that defines some sort of state, which influences parsing and/or formatting. Its syntax is as follows: .Pp -.D1 Pf \. Cm \&nr Ar name Ar value +.D1 Pf \. Cm \&nr Ar name Oo +|- Oc Ns Ar value .Pp The .Ar value may, at the moment, only be an integer. -So far, only the following register +If it is prefixed by a sign, the register will be +incremented or decremented instead of assigned to. +.Pp +The following register .Ar name -is recognised: +is handled specially: .Bl -tag -width Ds .It Cm nS If set to a positive integer value, certain |