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| author |   Ingo Schwarze <schwarze@openbsd.org> | 2015-05-31 23:13:22 +0000 |
|---|---|---|
| committer | Ingo Schwarze <schwarze@openbsd.org> | 2015-05-31 23:13:22 +0000 |
| commit | be3e970f578850301090009923eccbd3a255b801 (patch) | |
| tree | 755a8c3733f27b9fb0e351259dfe4891ef9da919 /roff.7 | |
| parent | 23ce90af4d0d1ec547a53b8a66448e146ec30065 (diff) | |
| download | mandoc-be3e970f578850301090009923eccbd3a255b801.tar.gz mandoc-be3e970f578850301090009923eccbd3a255b801.tar.zst mandoc-be3e970f578850301090009923eccbd3a255b801.zip | |
Implement the roff(7) `r' (register exists) conditional.
Missing feature found by Markus <Waldeck at gmx dot de>
in Debian's bash(1) manual page.
Diffstat (limited to 'roff.7')
| -rw-r--r-- | roff.7 | 11 |
1 files changed, 7 insertions, 4 deletions
@@ -1,4 +1,4 @@ -.\" $Id: roff.7,v 1.71 2015/04/29 18:35:00 schwarze Exp $ +.\" $Id: roff.7,v 1.72 2015/05/31 23:13:22 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 29 2015 $ +.Dd $Mdocdate: May 31 2015 $ .Dt ROFF 7 .Os .Sh NAME @@ -1057,8 +1057,6 @@ 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 , or @@ -1066,6 +1064,11 @@ 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 |