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[groff] 01/01: Note that .rt can only return to a same-page .mk.
From: |
G. Branden Robinson |
Subject: |
[groff] 01/01: Note that .rt can only return to a same-page .mk. |
Date: |
Sun, 4 Nov 2018 05:47:06 -0500 (EST) |
gbranden pushed a commit to branch master
in repository groff.
commit 4326318427c95e4f00d974df4aa78fca7b5eaa92
Author: G. Branden Robinson <address@hidden>
Date: Sun Nov 4 05:36:31 2018 -0500
Note that .rt can only return to a same-page .mk.
* doc/groff.texi: Note that a page break after a .mk renders .rt
nilpotent. Thanks to Dave Kemper for the patch!
man/groff.7.man: Document the fact here as well.
Fixes <https://savannah.gnu.org/bugs/index.php?54915>.
* man/groff.7.man: Also:
+ Mark .mk argument as optional.
+ Make .mk and .rt refer to each other.
+ Split argumentless and argumentful .rt into separate entries.
Signed-off-by: G. Branden Robinson <address@hidden>
---
doc/groff.texi | 3 +++
man/groff.7.man | 18 +++++++++++++++---
2 files changed, 18 insertions(+), 3 deletions(-)
diff --git a/doc/groff.texi b/doc/groff.texi
index 6bbd687..9677e34 100644
--- a/doc/groff.texi
+++ b/doc/groff.texi
@@ -11836,6 +11836,9 @@ position which distance from the top of the page is
@var{dist} (no
previous call to @code{mk} is necessary in this case). Default scaling
indicator is @samp{v}.
+If a page break occurs between a @code{mk} request and its
+matching @code{rt} request, the @code{rt} is silently ignored.
+
Here a primitive solution for a two-column macro.
@Example
diff --git a/man/groff.7.man b/man/groff.7.man
index c48637d..6fd5969 100644
--- a/man/groff.7.man
+++ b/man/groff.7.man
@@ -1990,9 +1990,12 @@ from right margin (default scaling indicator\~\c
.scaleindicator m ).
.
.TPx
-.REQ .mk "register"
+.REQ .mk "\fR[\fPregister\fR]\fP"
Mark current vertical position in
-.IR register .
+.IR register ,
+or in an internal register used by
+.BR .rt
+if no argument.
.
.TPx
.REQ .mso "file"
@@ -2274,10 +2277,19 @@ Remove
Restore spacing; turn no-space mode off.
.
.TPx
+.REQ .rt
+Return
+.I (upward only)
+to vertical position marked by
+.B .mk
+on the current page.
+.
+.TPx
.REQ .rt "\[+-]N"
Return
.I (upward only)
-to marked vertical place (default scaling indicator\~\c
+to specified distance from the top of the page (default scaling
+indicator\~\c
.scaleindicator v ).
.
.TPx
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