[latex3-commits] [git/LaTeX3-latex3-latex3] master: Add a note re. backend code (ffffad17b)

[Joseph Wright]

Repository : https://github.com/latex3/latex3
On branch  : master
Link       : https://github.com/latex3/latex3/commit/ffffad17bffa21a4772eee987d3bd4b7042c8f96

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

commit ffffad17bffa21a4772eee987d3bd4b7042c8f96
Author: Joseph Wright <joseph.wright at morningstar2.co.uk>
Date:   Fri Sep 4 19:44:32 2020 +0100

    Add a note re. backend code


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

ffffad17bffa21a4772eee987d3bd4b7042c8f96
 l3backend/l3backend-pdf.dtx | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/l3backend/l3backend-pdf.dtx b/l3backend/l3backend-pdf.dtx
index b2898fb88..80f10d9ba 100644
--- a/l3backend/l3backend-pdf.dtx
+++ b/l3backend/l3backend-pdf.dtx
@@ -773,7 +773,9 @@
 %
 % \begin{macro}[EXP]{\@@_backend_annotation_last:}
 %   A tiny amount of extra data gets added here; we use \texttt{x}-type
-%   expansion to get the space in the right place and form.
+%   expansion to get the space in the right place and form. The \enquote{extra}
+%   space in the \LuaTeX{} version is \emph{required} as it is consumed in
+%   finding the end of the keyword.
 %    \begin{macrocode}
 \cs_new:Npx \@@_backend_annotation_last:
   {