[latex3-commits] [git/LaTeX3-latex3-latex2e] develop: added underscore guards (a0f4f752)

[Ulrike Fischer]

Repository : https://github.com/latex3/latex2e
On branch  : develop
Link       : https://github.com/latex3/latex2e/commit/a0f4f752c599c270609da9768189519136ee1035

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

commit a0f4f752c599c270609da9768189519136ee1035
Author: Ulrike Fischer <fischer at troubleshooting-tex.de>
Date:   Wed Jul 24 15:08:12 2019 +0200

    added underscore guards


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

a0f4f752c599c270609da9768189519136ee1035
 required/tools/bm.dtx | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/required/tools/bm.dtx b/required/tools/bm.dtx
index b8be6530..fc857f87 100644
--- a/required/tools/bm.dtx
+++ b/required/tools/bm.dtx
@@ -1,6 +1,6 @@
 % \iffalse meta-comment
 %
-% Copyright 1993-2017
+% Copyright 1993-2019
 %
 % The LaTeX3 Project and any individual authors listed elsewhere
 % in this file.
@@ -22,7 +22,7 @@
 % \fi
 %
 % \iffalse
-%% Copyright 1996 1997 1998 1999 2002 2003 2004 2016 2017
+%% Copyright 1996 1997 1998 1999 2002 2003 2004 2016 2017 2019
 %% David Carlisle Frank Mittelbach
 %%
 %% Development of this package was commissioned by Y&Y Inc.
@@ -36,7 +36,7 @@
 %<driver>\ProvidesFile{bm.drv}
 % \fi
 %         \ProvidesFile{bm.dtx}
-          [2017/01/16 v1.2c Bold Symbol Support (DPC/FMi)]
+          [2019/07/24 v1.2d Bold Symbol Support (DPC/FMi)]
 %
 % \iffalse
 %<*driver>
@@ -699,6 +699,8 @@
 % \changes{v1.0d}{1997/11/15}
 %      {extra code to support prime lookahead and breqn}
 % \changes{v1.0h}{2002/11/22}{Pass math version as third (new) argument}
+% \changes{v1.2d}{2019/07/24}
+%      {guard against active underscore}
 %
 % |\bm| is pretty much |\bmdefine\bm at command| followed by executing
 % |\bm at command|. It would in principle be possible to execute the
@@ -713,6 +715,7 @@
 %    \begin{macrocode}
 \begingroup
 \catcode`\'=\active
+\catcode`\_=\active
 \@firstofone{\endgroup
 \def\bm at general#1#2#3#4#5{%
   \begingroup
@@ -764,8 +767,13 @@
 % |'| is locally active for this definition.
 % \changes{v1.0d}{1997/11/15}
 %      {prime code added}
+% \changes{v1.0d}{1997/11/15}
+%      {prime code added}
+% \changes{v1.2d}{2019/07/24}
+%      {guard against active underscore}
 %    \begin{macrocode}
     \let\bm at prime\copy
+    \let_\relax
     \def'{\bm at prime\prime\relax}%
 %    \end{macrocode}
 % For optional argument commands. This expandable version of