[latex3-commits] [git/LaTeX3-latex3-latex3] master: Support for trace package in xparse (fixes #564) (9a0c59b)

[Joseph Wright]

Repository : https://github.com/latex3/latex3
On branch  : master
Link       : https://github.com/latex3/latex3/commit/9a0c59b668a9a9b7b7f3d0ba7834cd3ed2d2cdfe

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

commit 9a0c59b668a9a9b7b7f3d0ba7834cd3ed2d2cdfe
Author: Joseph Wright <joseph.wright at morningstar2.co.uk>
Date:   Fri Apr 26 22:55:33 2019 +0100

    Support for trace package in xparse (fixes #564)


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

9a0c59b668a9a9b7b7f3d0ba7834cd3ed2d2cdfe
 l3packages/CHANGELOG.md      |    4 ++++
 l3packages/xparse/xparse.dtx |    9 +++++++++
 2 files changed, 13 insertions(+)

diff --git a/l3packages/CHANGELOG.md b/l3packages/CHANGELOG.md
index 3f080a8..2f91d3a 100644
--- a/l3packages/CHANGELOG.md
+++ b/l3packages/CHANGELOG.md
@@ -7,6 +7,10 @@ this project uses date-based 'snapshot' version identifiers.
 
 ## [Unreleased]
 
+### Added
+
+- `xparse`: Support for `trace` package
+
 ## [2019-03-05]
 
 ### Added
diff --git a/l3packages/xparse/xparse.dtx b/l3packages/xparse/xparse.dtx
index 91d6a00..2f88748 100644
--- a/l3packages/xparse/xparse.dtx
+++ b/l3packages/xparse/xparse.dtx
@@ -1415,6 +1415,9 @@
 %    \begin{macrocode}
 \cs_new_protected:Npn \@@_start_env:nnnnn #1#2
   {
+%<*package>
+    \conditionally at traceoff
+%</package>
     \str_set:Nn \l_@@_environment_str {#2}
     \bool_set_true:N \l_@@_environment_bool
     \@@_start_aux:ccnnnn
@@ -1424,6 +1427,9 @@
   }
 \cs_new_protected:Npx \@@_start:nNNnnn #1#2#3
   {
+%<*package>
+    \conditionally at traceoff
+%</package>
     \exp_not:c { xparse~function~is~not~expandable }
     \exp_not:n { \bool_set_false:N \l_@@_environment_bool }
     \exp_not:N \@@_start_aux:NNnnnn
@@ -1460,6 +1466,9 @@
   {
     \tl_if_empty:NF \l_@@_defaults_tl { \@@_defaults: }
     \tl_if_empty:NF \l_@@_process_all_tl { \@@_args_process: }
+%<*package>
+    \conditionally at traceon
+%</package>
     \exp_after:wN \l_@@_fn_code_tl \l_@@_args_tl
   }
 %    \end{macrocode}