l3kernel (23oct23)

git-svn-id: svn://tug.org/texlive/trunk@68632 c570f23f-e606-0410-a88d-b1316a301751

32 files changed, 41 insertions, 11 deletions

diff --git a/Master/texmf-dist/doc/latex/l3kernel/CHANGELOG.md b/Master/texmf-dist/doc/latex/l3kernel/CHANGELOG.md
index 590abad03a5..919e6779b66 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/CHANGELOG.md
+++ b/Master/texmf-dist/doc/latex/l3kernel/CHANGELOG.md
@@ -7,6 +7,27 @@ this project uses date-based 'snapshot' version identifiers.
 
 ## [Unreleased]
 
+## [2023-10-23]
+
+### Added
+- `\text_titlecase_all:n(n)`
+- `\token_to_catcode:N`
+- Support for symbolic variables in fp input:
+  `\fp_new_variable:n`, `\fp_set_variable:nn` and `\fp_clear_variable:n`
+- Support for user-defined functions in fp expressions:
+  `\fp_new_function:n`, `\fp_set_function:nnn` and `\fp_clear_function:n`
+
+### Changed
+- Refine action of `\text_titlecase_first:n(n)` to be focussed strictly on
+  first (relevant) codepoint in the input
+
+### Deprecated
+- `\text_titlecase:n(n)` as ambiguous: replaced by `\text_titlecase_all:n(n)`
+
+### Fixed
+- Support arbitrary BCP-47 locales for case-changing overrides (issue \#1239)
+- Retain braces when ending titlecasing with some input structures
+
 ## [2023-10-10]
 
 ### Added
@@ -119,7 +140,6 @@ this project uses date-based 'snapshot' version identifiers.
 - `\file_input_raw:n`
 - `\int_if_zero:n(TF)`
 - `\str_mdfive_hash:n`
-
 ### Changed
 - Remove `\noexpand` inside math mode in `\text_expand:n`
 - Re-implement `\dim_to_decimal_in_bp:n` and 
@@ -1538,7 +1558,8 @@ this project uses date-based 'snapshot' version identifiers.
 - Step functions have been added for dim variables,
   e.g. `\dim_step_inline:nnnn`
 
-[Unreleased]: https://github.com/latex3/latex3/compare/2023-10-10...HEAD
+[Unreleased]: https://github.com/latex3/latex3/compare/2023-10-23...HEAD
+[2023-10-23]: https://github.com/latex3/latex3/compare/2023-10-10...2023-10-23
 [2023-10-10]: https://github.com/latex3/latex3/compare/2023-08-29...2023-10-10
 [2023-08-29]: https://github.com/latex3/latex3/compare/2023-08-11...2023-08-29
 [2023-08-11]: https://github.com/latex3/latex3/compare/2023-08-03...2023-08-11
diff --git a/Master/texmf-dist/doc/latex/l3kernel/README.md b/Master/texmf-dist/doc/latex/l3kernel/README.md
index 7b368819d58..5f52ac444b6 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/README.md
+++ b/Master/texmf-dist/doc/latex/l3kernel/README.md
@@ -1,7 +1,7 @@
 LaTeX3 Programming Conventions
 ==============================
 
-Release 2023-10-10
+Release 2023-10-23
 
 Overview
 --------
@@ -57,7 +57,7 @@ since the release of version 1.40.0 in 2007; `\expanded` was added for TeX Live
 2019. Similarly, the full set of these utility primitives has been available in
 XeTeX from the 2019 TeX Live release, and has always been available in LuaTeX
 (some by Lua emulation). The Japanese pTeX and upTeX gained all of the above
-(except `\ifincsname`) for TeX Live 2019 `\ifincsname` for TeX Live 2020.
+(except `\ifincsname`) for TeX Live 2019 and `\ifincsname` for TeX Live 2020.
 
 Starting from release 2023-05-15, the `\expanded` primitive is *required*.
 Its slow emulation has been removed.
diff --git a/Master/texmf-dist/doc/latex/l3kernel/expl3.pdf b/Master/texmf-dist/doc/latex/l3kernel/expl3.pdf
index af52bd35c0c..48ef0d9e7e2 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/expl3.pdf
+++ b/Master/texmf-dist/doc/latex/l3kernel/expl3.pdf
diff --git a/Master/texmf-dist/doc/latex/l3kernel/interface3.pdf b/Master/texmf-dist/doc/latex/l3kernel/interface3.pdf
index f8431c73476..d80ff728b78 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/interface3.pdf
+++ b/Master/texmf-dist/doc/latex/l3kernel/interface3.pdf
diff --git a/Master/texmf-dist/doc/latex/l3kernel/interface3.tex b/Master/texmf-dist/doc/latex/l3kernel/interface3.tex
index 79d4cec3e98..ded23a79544 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/interface3.tex
+++ b/Master/texmf-dist/doc/latex/l3kernel/interface3.tex
@@ -64,7 +64,7 @@ for those people who are interested.
          {latex-team@latex-project.org}%
    }%
 }
-\date{Released 2023-10-10}
+\date{Released 2023-10-23}
 
 \pagenumbering{roman}
 \maketitle
diff --git a/Master/texmf-dist/doc/latex/l3kernel/l3doc.pdf b/Master/texmf-dist/doc/latex/l3kernel/l3doc.pdf
index b8cd8d1e295..2612bef1840 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/l3doc.pdf
+++ b/Master/texmf-dist/doc/latex/l3kernel/l3doc.pdf
diff --git a/Master/texmf-dist/doc/latex/l3kernel/l3docstrip.pdf b/Master/texmf-dist/doc/latex/l3kernel/l3docstrip.pdf
index 39d53ac5b93..4f43b61756d 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/l3docstrip.pdf
+++ b/Master/texmf-dist/doc/latex/l3kernel/l3docstrip.pdf
diff --git a/Master/texmf-dist/doc/latex/l3kernel/l3news.pdf b/Master/texmf-dist/doc/latex/l3kernel/l3news.pdf
index 7f0effadb86..b5c1844444b 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/l3news.pdf
+++ b/Master/texmf-dist/doc/latex/l3kernel/l3news.pdf
diff --git a/Master/texmf-dist/doc/latex/l3kernel/l3news01.pdf b/Master/texmf-dist/doc/latex/l3kernel/l3news01.pdf
index 5508abfcc94..4d0a8ae25dc 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/l3news01.pdf
+++ b/Master/texmf-dist/doc/latex/l3kernel/l3news01.pdf
diff --git a/Master/texmf-dist/doc/latex/l3kernel/l3news02.pdf b/Master/texmf-dist/doc/latex/l3kernel/l3news02.pdf
index 13e40ab8bd7..7342946a436 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/l3news02.pdf
+++ b/Master/texmf-dist/doc/latex/l3kernel/l3news02.pdf
diff --git a/Master/texmf-dist/doc/latex/l3kernel/l3news03.pdf b/Master/texmf-dist/doc/latex/l3kernel/l3news03.pdf
index f80fc2a5193..331b9cf1b4a 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/l3news03.pdf
+++ b/Master/texmf-dist/doc/latex/l3kernel/l3news03.pdf
diff --git a/Master/texmf-dist/doc/latex/l3kernel/l3news04.pdf b/Master/texmf-dist/doc/latex/l3kernel/l3news04.pdf
index c33cbf0cace..b860cf5ff4a 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/l3news04.pdf
+++ b/Master/texmf-dist/doc/latex/l3kernel/l3news04.pdf
diff --git a/Master/texmf-dist/doc/latex/l3kernel/l3news05.pdf b/Master/texmf-dist/doc/latex/l3kernel/l3news05.pdf
index ffe3a03c6c8..7e616f5a299 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/l3news05.pdf
+++ b/Master/texmf-dist/doc/latex/l3kernel/l3news05.pdf
diff --git a/Master/texmf-dist/doc/latex/l3kernel/l3news06.pdf b/Master/texmf-dist/doc/latex/l3kernel/l3news06.pdf
index e25a8421bb8..77334146c06 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/l3news06.pdf
+++ b/Master/texmf-dist/doc/latex/l3kernel/l3news06.pdf
diff --git a/Master/texmf-dist/doc/latex/l3kernel/l3news07.pdf b/Master/texmf-dist/doc/latex/l3kernel/l3news07.pdf
index 4159983011a..1193adac7e2 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/l3news07.pdf
+++ b/Master/texmf-dist/doc/latex/l3kernel/l3news07.pdf
diff --git a/Master/texmf-dist/doc/latex/l3kernel/l3news08.pdf b/Master/texmf-dist/doc/latex/l3kernel/l3news08.pdf
index 8d74fc5968a..ae70965ba30 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/l3news08.pdf
+++ b/Master/texmf-dist/doc/latex/l3kernel/l3news08.pdf
diff --git a/Master/texmf-dist/doc/latex/l3kernel/l3news09.pdf b/Master/texmf-dist/doc/latex/l3kernel/l3news09.pdf
index d4c60d81f74..d9791e71867 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/l3news09.pdf
+++ b/Master/texmf-dist/doc/latex/l3kernel/l3news09.pdf
diff --git a/Master/texmf-dist/doc/latex/l3kernel/l3news10.pdf b/Master/texmf-dist/doc/latex/l3kernel/l3news10.pdf
index 7b5dcec9cc1..366041530ae 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/l3news10.pdf
+++ b/Master/texmf-dist/doc/latex/l3kernel/l3news10.pdf
diff --git a/Master/texmf-dist/doc/latex/l3kernel/l3news11.pdf b/Master/texmf-dist/doc/latex/l3kernel/l3news11.pdf
index 1cfeef5b063..410448f6546 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/l3news11.pdf
+++ b/Master/texmf-dist/doc/latex/l3kernel/l3news11.pdf
diff --git a/Master/texmf-dist/doc/latex/l3kernel/l3news12.pdf b/Master/texmf-dist/doc/latex/l3kernel/l3news12.pdf
index cd159d28f32..127946bd807 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/l3news12.pdf
+++ b/Master/texmf-dist/doc/latex/l3kernel/l3news12.pdf
diff --git a/Master/texmf-dist/doc/latex/l3kernel/l3obsolete.txt b/Master/texmf-dist/doc/latex/l3kernel/l3obsolete.txt
index 75af4e93044..7b9c808e5c8 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/l3obsolete.txt
+++ b/Master/texmf-dist/doc/latex/l3kernel/l3obsolete.txt
@@ -56,6 +56,8 @@ Function                            Date deprecated
 \seq_indexed_map_inline:Nn               2020-06-18
 \seq_indexed_map_function:NN             2020-06-18
 \sys_load_deprecation:                   2021-01-11
+\text_titlecase:n                        2023-07-08
+\text_titlecase:nn                       2023-07-08
 \tl_case:cn                              2023-05-23
 \tl_case:cnF                             2023-05-23
 \tl_case:cnT                             2023-05-23
diff --git a/Master/texmf-dist/doc/latex/l3kernel/l3prefixes.csv b/Master/texmf-dist/doc/latex/l3kernel/l3prefixes.csv
index 710da8edbea..8b4ead7bf30 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/l3prefixes.csv
+++ b/Master/texmf-dist/doc/latex/l3kernel/l3prefixes.csv
@@ -22,6 +22,7 @@ backslash,l3kernel,The LaTeX Project,https://www.latex-project.org/latex3.html,h
 bearwear,bearwear,Ulrike Fischer,https://github.com/u-fischer/bearwear,https://github.com/u-fischer/bearwear,https://github.com/u-fischer/bearwear/issues,2020-04-24,2020-04-24,
 beuron,beuron,Keno Wehr,https://ctan.org/pkg/beuron,,,2021-08-23,2021-08-23,
 bitset,l3kernel,The LaTeX3 Project,https://www.latex-project.org/latex3.html,https://github.com/latex3/latex3.git,https://github.com/latex3/latex3/issues,2020-12-26,2020-12-26,
+block,latex2e,The LaTeX Project,https://www.latex-project.org/latex3.html,https://github.com/latex3/latex2e.git,https://github.com/latex3/latex2e/issues,2023-10-17,2023-10-17,
 bool,l3kernel,The LaTeX Project,https://www.latex-project.org/latex3.html,https://github.com/latex3/latex3.git,https://github.com/latex3/latex3/issues,2012-09-27,2012-09-27,
 box,l3kernel,The LaTeX Project,https://www.latex-project.org/latex3.html,https://github.com/latex3/latex3.git,https://github.com/latex3/latex3/issues,2012-09-27,2012-09-27,
 bxjh,BXjaholiday,Takuto Asakura,https://github.com/wtsnjp/BXjaholiday,https://github.com/wtsnjp/BXjaholiday.git,https://github.com/wtsnjp/BXjaholiday/issues,2018-02-02,2019-02-02,
@@ -92,6 +93,7 @@ fltr,newlfm,Paul Thomson,,,,2013-01-29,2013-01-29,
 fmdug,dashundergaps,Frank Mittelbach,https://www.latex-project.org/,https://github.com/FrankMittelbach/fmitex-dashundergaps.git,https://github.com/FrankMittelbach/fmitex-dashundergaps/issues,2018-06-24,2021-10-11,
 fmuft,unicodefonttable,Frank Mittelbach,https://www.latex-project.org/,https://github.com/FrankMittelbach/fmitex-unicodefonttable.git,https://github.com/FrankMittelbach/fmitex-unicodefonttable/issues,2020-02-17,2021-10-11,
 fmwao,widows-and-orphans,Frank Mittelbach,https://www.latex-project.org/,https://github.com/FrankMittelbach/fmitex-widows-and-orphans.git,https://github.com/FrankMittelbach/fmitex-widows-and-orphans/issues,2018-09-26,2018-09-26,
+fnote,latex2e,The LaTeX Project,https://www.latex-project.org/latex3.html,https://github.com/latex3/latex2e.git,https://github.com/latex3/latex2e/issues,2023-10-17,2023-10-17,
 fnpct,fnpct,Clemens Niederberger,https://github.com/cgnieder/fnpct/,https://github.com/cgnieder/fnpct.git,https://github.com/cgnieder/fnpct/issues,2013-03-16,2020-04-14,
 fontsizes,fontsizes,Julien Rivaud,,,,,2018-06-13,
 fontspec,fontspec,Will Robertson,https://github.com/wspr/fontspec,https://github.com/wspr/fontspec.git,https://github.com/wspr/fontspec/issues,2013-03-16,2013-03-16,
@@ -227,6 +229,8 @@ silly,sillypage,Paulo Cereda,https://github.com/cereda/sillypage,https://github.
 siunitx,siunitx,Joseph Wright,https://github.com/josephwright/siunitx,https://github.com/josephwright/siunitx.git,https://github.com/josephwright/siunitx/issues,2012-11-04,2012-11-04,
 skel,skeldoc,Magnus Lie Hetland,https://github.com/mlhetland/skeldoc.sty,https://github.com/mlhetland/skeldoc.sty.git,https://github.com/mlhetland/skeldoc.sty/issues,2021-01-04,2021-01-04,
 skip,l3kernel,The LaTeX Project,https://www.latex-project.org/latex3.html,https://github.com/latex3/latex3.git,https://github.com/latex3/latex3/issues,2012-09-27,2012-09-27,
+slcd,se2thesis,Stephan Lukasczyk,https://github.com/se2p/se2thesis,https://github.com/se2p/se2thesis,https://github.com/se2p/se2thesis/issues,2023-10-18,2023-10-18,
+socket,latex2e,The LaTeX Project,https://www.latex-project.org/latex3.html,https://github.com/latex3/latex2e.git,https://github.com/latex3/latex2e/issues,2023-10-17,2023-10-17,
 sort,l3kernel,The LaTeX Project,https://www.latex-project.org/latex3.html,https://github.com/latex3/latex3.git,https://github.com/latex3/latex3/issues,2012-09-27,2017-02-13,
 space,l3kernel,The LaTeX Project,https://www.latex-project.org/latex3.html,https://github.com/latex3/latex3.git,https://github.com/latex3/latex3/issues,2018-05-12,2018-05-12,
 starray,starray,Alceu Frigeri,https://github.com/alceu-frigeri/starray,https://github.com/alceu-frigeri/starray,https://github.com/alceu-frigeri/starray/issues,2023-05-15,2023-05-15,
diff --git a/Master/texmf-dist/doc/latex/l3kernel/l3prefixes.pdf b/Master/texmf-dist/doc/latex/l3kernel/l3prefixes.pdf
index 5d41b138f07..de3f86bdb73 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/l3prefixes.pdf
+++ b/Master/texmf-dist/doc/latex/l3kernel/l3prefixes.pdf
diff --git a/Master/texmf-dist/doc/latex/l3kernel/l3styleguide.pdf b/Master/texmf-dist/doc/latex/l3kernel/l3styleguide.pdf
index 16d307e0284..945554d2f4c 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/l3styleguide.pdf
+++ b/Master/texmf-dist/doc/latex/l3kernel/l3styleguide.pdf
diff --git a/Master/texmf-dist/doc/latex/l3kernel/l3styleguide.tex b/Master/texmf-dist/doc/latex/l3kernel/l3styleguide.tex
index 29c2f76864c..995a5d36680 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/l3styleguide.tex
+++ b/Master/texmf-dist/doc/latex/l3kernel/l3styleguide.tex
@@ -32,7 +32,7 @@ The released version of this bundle is available from CTAN.
         {latex-team@latex-project.org}%
     }%
 }
-\date{Released 2023-10-10}
+\date{Released 2023-10-23}
 
 \begin{document}
 
diff --git a/Master/texmf-dist/doc/latex/l3kernel/l3syntax-changes.pdf b/Master/texmf-dist/doc/latex/l3kernel/l3syntax-changes.pdf
index 5c4fe8ad1d8..f2db75a12a1 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/l3syntax-changes.pdf
+++ b/Master/texmf-dist/doc/latex/l3kernel/l3syntax-changes.pdf
diff --git a/Master/texmf-dist/doc/latex/l3kernel/l3syntax-changes.tex b/Master/texmf-dist/doc/latex/l3kernel/l3syntax-changes.tex
index dbb6d858b49..d93e7bc8dcb 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/l3syntax-changes.tex
+++ b/Master/texmf-dist/doc/latex/l3kernel/l3syntax-changes.tex
@@ -32,7 +32,7 @@ The released version of this bundle is available from CTAN.
         {latex-team@latex-project.org}%
     }%
 }
-\date{Released 2023-10-10}
+\date{Released 2023-10-23}
 
 \newcommand{\TF}{\textit{(TF)}}
 
diff --git a/Master/texmf-dist/doc/latex/l3kernel/l3term-glossary.pdf b/Master/texmf-dist/doc/latex/l3kernel/l3term-glossary.pdf
index ebe1f75c91b..ffdbc76f29d 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/l3term-glossary.pdf
+++ b/Master/texmf-dist/doc/latex/l3kernel/l3term-glossary.pdf
diff --git a/Master/texmf-dist/doc/latex/l3kernel/l3term-glossary.tex b/Master/texmf-dist/doc/latex/l3kernel/l3term-glossary.tex
index bd166834ac7..25a510d9e69 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/l3term-glossary.tex
+++ b/Master/texmf-dist/doc/latex/l3kernel/l3term-glossary.tex
@@ -32,7 +32,7 @@ The released version of this bundle is available from CTAN.
         {latex-team@latex-project.org}%
     }%
 }
-\date{Released 2023-10-10}
+\date{Released 2023-10-23}
 
 \newcommand{\TF}{\textit{(TF)}}
 
diff --git a/Master/texmf-dist/doc/latex/l3kernel/source3.pdf b/Master/texmf-dist/doc/latex/l3kernel/source3.pdf
index a89fb20da4a..13567c5b2a7 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/source3.pdf
+++ b/Master/texmf-dist/doc/latex/l3kernel/source3.pdf
diff --git a/Master/texmf-dist/doc/latex/l3kernel/source3.tex b/Master/texmf-dist/doc/latex/l3kernel/source3.tex
index bd89e295245..bb91c59643a 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/source3.tex
+++ b/Master/texmf-dist/doc/latex/l3kernel/source3.tex
@@ -57,7 +57,7 @@ for those people who are interested.
          {latex-team@latex-project.org}%
    }%
 }
-\date{Released 2023-10-10}
+\date{Released 2023-10-23}
 
 \pagenumbering{roman}
 \maketitle
diff --git a/Master/texmf-dist/doc/latex/l3kernel/source3body.tex b/Master/texmf-dist/doc/latex/l3kernel/source3body.tex
index 34573d3d648..f76e8f28728 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/source3body.tex
+++ b/Master/texmf-dist/doc/latex/l3kernel/source3body.tex
@@ -517,9 +517,9 @@ logical construct.
 
 \section{\TeX{} concepts not supported by \LaTeX3{}}
 
-The \TeX{} concept of an \enquote{\cs{outer}} macro is \emph{not supported}
+The \TeX{} concept of an \enquote{\tn{outer}} macro is \emph{not supported}
 at all by \LaTeX3{}. As such, the functions provided here may break when
-used on top of \LaTeXe{} if \cs{outer} tokens are used in the arguments.
+used on top of \LaTeXe{} if \tn{outer} tokens are used in the arguments.
 
 \DisableImplementation
 
@@ -582,6 +582,9 @@ used on top of \LaTeXe{} if \cs{outer} tokens are used in the arguments.
     l3fp-trig.dtx ,
     l3fp-convert.dtx ,
     l3fp-random.dtx ,
+    l3fp-types.dtx ,
+    l3fp-symbolic.dtx ,
+    l3fp-functions.dtx
   }
 \ExplSyntaxOff