[latex3-commits] [git/LaTeX3-latex3-latex3] master: Terminate \rule correctly (see #815) (2591d3f7d)

[Joseph Wright]

Repository : https://github.com/latex3/latex3
On branch  : master
Link       : https://github.com/latex3/latex3/commit/2591d3f7d14693dec7a6231cf6981cfe7fe5cf2b

>---------------------------------------------------------------

commit 2591d3f7d14693dec7a6231cf6981cfe7fe5cf2b
Author: Joseph Wright <joseph.wright at morningstar2.co.uk>
Date:   Thu Oct 8 12:39:30 2020 +0100

    Terminate \rule correctly (see #815)


>---------------------------------------------------------------

2591d3f7d14693dec7a6231cf6981cfe7fe5cf2b
 l3trial/xbox/xbox.dtx | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/l3trial/xbox/xbox.dtx b/l3trial/xbox/xbox.dtx
index 5efb0974b..ea54c8f1d 100644
--- a/l3trial/xbox/xbox.dtx
+++ b/l3trial/xbox/xbox.dtx
@@ -1274,7 +1274,10 @@
 % \begin{macro}{\rule_vertical:n}
 %   Wrappers around the \TeX{} primitives for creating rules, with the usual
 %   dimension expression support. The non-expanding rule is set up in
-%   horizontal mode as that is usually the best plan.
+%   horizontal mode as that is usually the best plan. The \cs{scan_stop:}
+%   is needed here as \TeX{} continues to scan for keywords: multiple uses
+%   of the same word are permitted. (Thanks to Ruixi Zhang for pointing this
+%   out.)
 %    \begin{macrocode}
 \cs_new_protected:Npn \rule:nnn #1#2#3
   {
@@ -1284,6 +1287,7 @@
           height \dim_eval:n {#2} \exp_stop_f:
           depth  \dim_eval:n {#3} \exp_stop_f:
           width  \dim_eval:n {#1} \exp_stop_f:
+          \scan_stop:
       }
   }
 \cs_new_protected:Npn \rule_horizontal:nn #1#2
@@ -1291,9 +1295,10 @@
     \tex_hrule:D
       height \dim_eval:n {#1} \exp_stop_f:
       depth  \dim_eval:n {#2} \exp_stop_f:
+      \scan_stop:
   }
 \cs_new_protected:Npn \rule_vertical:n #1
-  { \tex_vrule:D width \dim_eval:n {#1} \exp_stop_f: }
+  { \tex_vrule:D width \dim_eval:n {#1} \exp_stop_f: \scan_stop: }
 %    \end{macrocode}
 % \end{macro}
 % \end{macro}