[latex3-commits] [git/LaTeX3-latex3-latex2e] case-lang: Use key name "locale" and make "lang" an alias (10693f72)

[Joseph Wright]

Repository : https://github.com/latex3/latex2e
On branch  : case-lang
Link       : https://github.com/latex3/latex2e/commit/10693f727cce567faa0ec25209bcf4fd31a1752c

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

commit 10693f727cce567faa0ec25209bcf4fd31a1752c
Author: Joseph Wright <joseph.wright at morningstar2.co.uk>
Date:   Sat Oct 22 13:26:46 2022 +0100

    Use key name "locale" and make "lang" an alias


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

10693f727cce567faa0ec25209bcf4fd31a1752c
 base/doc/ltnews36.tex | 3 ++-
 base/doc/usrguide.tex | 3 ++-
 base/ltfinal.dtx      | 5 ++++-
 3 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/base/doc/ltnews36.tex b/base/doc/ltnews36.tex
index d442bd52..e8196dec 100644
--- a/base/doc/ltnews36.tex
+++ b/base/doc/ltnews36.tex
@@ -214,7 +214,8 @@ The commands \cs{MakeUppercase}, \cs{MakeLowercase} and \cs{MakeTitlecase}
 now automatically detect the locale currently in use when \pkg{babel} is
 loaded. This allows automatic adjustment of letter mappings where appropriate.
 They also accept a leading optional argument. This accepts a key--value list of
-control settings. At present, there is one key available: \texttt{lang}.
+control settings. At present, there is one key available: \texttt{locale},
+which can also be accessed via the alias \texttt{lang}.
 This
 are intended to allow local setting of the language, which can be done using
 a BCP-47 descriptor. For example, this could be used to force Turkic
diff --git a/base/doc/usrguide.tex b/base/doc/usrguide.tex
index f5516863..32e12a13 100644
--- a/base/doc/usrguide.tex
+++ b/base/doc/usrguide.tex
@@ -1167,7 +1167,8 @@ engines match those available in standard input encodings (|T1|, |T2|, |LGR|).
 \end{quotation}
 
 The case-changing commands take an optional argument which can be used to
-tailor the output. This optional argument accepts the key \texttt{lang},
+tailor the output. This optional argument accepts the key \texttt{locale},
+also available under the alias \texttt{lang},
 which can be used to give a language identifier in BCP-47
 format. This is then applied to select language-specific features during
 case-changing.
diff --git a/base/ltfinal.dtx b/base/ltfinal.dtx
index 5618a1f5..af134d37 100644
--- a/base/ltfinal.dtx
+++ b/base/ltfinal.dtx
@@ -1117,7 +1117,10 @@
 %    \begin{macrocode}
 \ExplSyntaxOn
 \keys_define:nn { __kernel }
-  { lang .str_set:N = \reserved at a }
+  {
+    lang .meta:n = { locale = {#1} } ,
+    locale .str_set:N = \reserved at a
+  }
 \cs_new_protected:Npn \@@text at case@aux #1#2#3
   {
     \cs_set_nopar:Npn \reserved at a { }