[latex3-commits] [git/LaTeX3-latex3-latex3] master: Fix equivalent of \end in \text_purify:n (54f8761ed)

[Joseph Wright]

Repository : https://github.com/latex3/latex3
On branch  : master
Link       : https://github.com/latex3/latex3/commit/54f8761ed7d304b22db35481e9caad83cf42a5f8

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

commit 54f8761ed7d304b22db35481e9caad83cf42a5f8
Author: Joseph Wright <joseph.wright at morningstar2.co.uk>
Date:   Tue Oct 20 22:01:43 2020 +0100

    Fix equivalent of \end in \text_purify:n


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

54f8761ed7d304b22db35481e9caad83cf42a5f8
 l3kernel/CHANGELOG.md      | 1 +
 l3kernel/l3text-purify.dtx | 7 ++++++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/l3kernel/CHANGELOG.md b/l3kernel/CHANGELOG.md
index 69a6243c7..94bf8e4e0 100644
--- a/l3kernel/CHANGELOG.md
+++ b/l3kernel/CHANGELOG.md
@@ -9,6 +9,7 @@ this project uses date-based 'snapshot' version identifiers.
 
 ### Fixed
 - Avoid relying on braced `\input` primitive syntax
+- Correct expansion of environments in `\text_purify:n`
 
 ### Changed
 - Extend case changer to cover all of Greek with pdfTeX
diff --git a/l3kernel/l3text-purify.dtx b/l3kernel/l3text-purify.dtx
index b2f0b59fa..24cd0933e 100644
--- a/l3kernel/l3text-purify.dtx
+++ b/l3kernel/l3text-purify.dtx
@@ -398,10 +398,15 @@
   { \text_declare_purify_equivalent:Nn #1 { } }
 %    \end{macrocode}
 % Environments have to be handled by pure expansion.
+%
+% \begin{macro}{\@@_end_env:n}
 %    \begin{macrocode}
 \text_declare_purify_equivalent:Nn \begin { \use:c }
-\text_declare_purify_equivalent:Nn \end { \use:c }
+\text_declare_purify_equivalent:Nn \end { \@@_end_env:n }
+\cs_new:Npn \@@_end_env:n #1 { \cs:w end #1 \cs_end: }
 %    \end{macrocode}
+% \end{macro}
+%
 % Some common symbols and similar ideas.
 %    \begin{macrocode}
 \text_declare_purify_equivalent:Nn \\ { }