texlive[55142] Master/texmf-dist: l3 (14may20)

commits+karl at tug.org commits+karl at tug.org
Thu May 14 23:16:02 CEST 2020


Revision: 55142
          http://tug.org/svn/texlive?view=revision&revision=55142
Author:   karl
Date:     2020-05-14 23:16:02 +0200 (Thu, 14 May 2020)
Log Message:
-----------
l3 (14may20)

Modified Paths:
--------------
    trunk/Master/texmf-dist/doc/latex/l3kernel/CHANGELOG.md
    trunk/Master/texmf-dist/doc/latex/l3kernel/README.md
    trunk/Master/texmf-dist/doc/latex/l3kernel/expl3.pdf
    trunk/Master/texmf-dist/doc/latex/l3kernel/interface3.pdf
    trunk/Master/texmf-dist/doc/latex/l3kernel/interface3.tex
    trunk/Master/texmf-dist/doc/latex/l3kernel/l3docstrip.pdf
    trunk/Master/texmf-dist/doc/latex/l3kernel/l3news.pdf
    trunk/Master/texmf-dist/doc/latex/l3kernel/l3news01.pdf
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    trunk/Master/texmf-dist/doc/latex/l3kernel/l3news11.pdf
    trunk/Master/texmf-dist/doc/latex/l3kernel/l3news12.pdf
    trunk/Master/texmf-dist/doc/latex/l3kernel/l3prefixes.csv
    trunk/Master/texmf-dist/doc/latex/l3kernel/l3prefixes.pdf
    trunk/Master/texmf-dist/doc/latex/l3kernel/l3styleguide.pdf
    trunk/Master/texmf-dist/doc/latex/l3kernel/l3styleguide.tex
    trunk/Master/texmf-dist/doc/latex/l3kernel/l3syntax-changes.pdf
    trunk/Master/texmf-dist/doc/latex/l3kernel/l3syntax-changes.tex
    trunk/Master/texmf-dist/doc/latex/l3kernel/l3term-glossary.pdf
    trunk/Master/texmf-dist/doc/latex/l3kernel/l3term-glossary.tex
    trunk/Master/texmf-dist/doc/latex/l3kernel/source3.pdf
    trunk/Master/texmf-dist/doc/latex/l3kernel/source3.tex
    trunk/Master/texmf-dist/doc/latex/l3packages/CHANGELOG.md
    trunk/Master/texmf-dist/doc/latex/l3packages/README.md
    trunk/Master/texmf-dist/doc/latex/l3packages/l3keys2e/l3keys2e.pdf
    trunk/Master/texmf-dist/doc/latex/l3packages/xfp/xfp.pdf
    trunk/Master/texmf-dist/doc/latex/l3packages/xfrac/xfrac.pdf
    trunk/Master/texmf-dist/doc/latex/l3packages/xparse/xparse.pdf
    trunk/Master/texmf-dist/doc/latex/l3packages/xtemplate/xtemplate.pdf
    trunk/Master/texmf-dist/source/latex/l3kernel/expl3.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3alloc.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3basics.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3bootstrap.dtx
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    trunk/Master/texmf-dist/source/latex/l3kernel/l3candidates.dtx
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    trunk/Master/texmf-dist/source/latex/l3kernel/l3coffins.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3color-base.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3debug.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3deprecation.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3doc.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3docstrip.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3expan.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3file.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3final.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3flag.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-assign.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-aux.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-basics.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-convert.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-expo.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-extended.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-logic.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-parse.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-random.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-round.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-traps.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-trig.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3fp.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3fparray.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3int.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3intarray.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3kernel-functions.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3keys.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3legacy.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3luatex.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3msg.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3names.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3prg.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3prop.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3quark.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3regex.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3seq.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3skip.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3sort.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3str-convert.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3str.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3sys.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3text-case.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3text-purify.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3text.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3tl-analysis.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3tl.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3token.dtx
    trunk/Master/texmf-dist/source/latex/l3kernel/l3unicode.dtx
    trunk/Master/texmf-dist/source/latex/l3packages/l3keys2e/l3keys2e.dtx
    trunk/Master/texmf-dist/source/latex/l3packages/xfp/xfp.dtx
    trunk/Master/texmf-dist/source/latex/l3packages/xfrac/xfrac.dtx
    trunk/Master/texmf-dist/source/latex/l3packages/xparse/xparse.dtx
    trunk/Master/texmf-dist/source/latex/l3packages/xparse/xparse.ins
    trunk/Master/texmf-dist/source/latex/l3packages/xtemplate/xtemplate.dtx
    trunk/Master/texmf-dist/tex/latex/l3kernel/expl3-code.tex
    trunk/Master/texmf-dist/tex/latex/l3kernel/expl3-generic.tex
    trunk/Master/texmf-dist/tex/latex/l3kernel/expl3.ltx
    trunk/Master/texmf-dist/tex/latex/l3kernel/expl3.sty
    trunk/Master/texmf-dist/tex/latex/l3packages/l3keys2e/l3keys2e.sty
    trunk/Master/texmf-dist/tex/latex/l3packages/xfp/xfp.sty
    trunk/Master/texmf-dist/tex/latex/l3packages/xfrac/xfrac.sty
    trunk/Master/texmf-dist/tex/latex/l3packages/xparse/xparse.ltx
    trunk/Master/texmf-dist/tex/latex/l3packages/xparse/xparse.sty
    trunk/Master/texmf-dist/tex/latex/l3packages/xtemplate/xtemplate.sty

Added Paths:
-----------
    trunk/Master/texmf-dist/tex/latex/l3packages/xparse/xparse-generic.tex

Modified: trunk/Master/texmf-dist/doc/latex/l3kernel/CHANGELOG.md
===================================================================
--- trunk/Master/texmf-dist/doc/latex/l3kernel/CHANGELOG.md	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/doc/latex/l3kernel/CHANGELOG.md	2020-05-14 21:16:02 UTC (rev 55142)
@@ -7,6 +7,11 @@
 
 ## [Unreleased]
 
+## [2020-05-14]
+
+### Changed
+- Performance improvements in keyval processing
+
 ## [2020-05-11]
 
 ### Changed
@@ -678,7 +683,8 @@
 - Step func­tions have been added for dim vari­ables,
   e.g. `\dim_step_in­line:nnnn`
 
-[Unreleased]: https://github.com/latex3/latex3/compare/2020-05-11...HEAD
+[Unreleased]: https://github.com/latex3/latex3/compare/2020-05-14...HEAD
+[2020-05-14]: https://github.com/latex3/latex3/compare/2020-05-11...2020-05-14
 [2020-05-11]: https://github.com/latex3/latex3/compare/2020-05-05...2020-05-11
 [2020-05-05]: https://github.com/latex3/latex3/compare/2020-04-06...2020-05-05
 [2020-04-06]: https://github.com/latex3/latex3/compare/2020-03-06...2020-04-06

Modified: trunk/Master/texmf-dist/doc/latex/l3kernel/README.md
===================================================================
--- trunk/Master/texmf-dist/doc/latex/l3kernel/README.md	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/doc/latex/l3kernel/README.md	2020-05-14 21:16:02 UTC (rev 55142)
@@ -1,7 +1,7 @@
 LaTeX3 Programming Conventions
 ==============================
 
-Release 2020-05-11
+Release 2020-05-14
 
 Overview
 --------

Modified: trunk/Master/texmf-dist/doc/latex/l3kernel/expl3.pdf
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Modified: trunk/Master/texmf-dist/doc/latex/l3kernel/interface3.tex
===================================================================
--- trunk/Master/texmf-dist/doc/latex/l3kernel/interface3.tex	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/doc/latex/l3kernel/interface3.tex	2020-05-14 21:16:02 UTC (rev 55142)
@@ -54,7 +54,7 @@
          {latex-team at latex-project.org}%
    }%
 }
-\date{Released 2020-05-11}
+\date{Released 2020-05-14}
 
 \pagenumbering{roman}
 \maketitle

Modified: trunk/Master/texmf-dist/doc/latex/l3kernel/l3docstrip.pdf
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Modified: trunk/Master/texmf-dist/doc/latex/l3kernel/l3prefixes.csv
===================================================================
--- trunk/Master/texmf-dist/doc/latex/l3kernel/l3prefixes.csv	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/doc/latex/l3kernel/l3prefixes.csv	2020-05-14 21:16:02 UTC (rev 55142)
@@ -40,6 +40,7 @@
 ctex,ctex,Qing Lee,https://github.com/CTeX-org/ctex-kit,https://github.com/CTeX-org/ctex-kit.git,https://github.com/CTeX-org/ctex-kit/issues,2014-03-08,2014-03-08,
 ctuthesis,ctuthesis,Tom Hejda,https://github.com/tohecz/ctuthesis,https://github.com/tohecz/ctuthesis.git,https://github.com/tohecz/ctuthesis/issues,2015-07-26,2015-07-26,
 debug,l3kernel,The LaTeX3 Project,https://www.latex-project.org/latex3.html,https://github.com/latex3/latex3.git,https://github.com/latex3/latex3/issues,2017-07-15,2017-07-15,
+denisbdoc,denisbdoc,Denis Bitouzé,https://github.com/dbitouze/denisbdoc,git@github.com:dbitouze/denisbdoc.git,2020-05-13,2020-05-13,
 deriv,derivative,Simon Jensen,,,,2019-07-24,2019-07-24,
 diffcoeff,diffcoeff,Andrew Parsloe,,,,2019-08-26,2019-08-26,
 dim,l3kernel,The LaTeX3 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,
@@ -81,6 +82,7 @@
 graph,lt3graph,Michiel Helvensteijn,,,,2014-02-05,2014-02-05,
 group,l3kernel,The LaTeX3 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,
 gtl,gtl,Bruno Le Floch,https://github.com/blefloch/latex-gtl,https://github.com/blefloch/latex-gtl.git,https://github.com/blefloch/latex-gtl/issues,2015-09-22,2015-09-22,
+gzt,gzt,Denis Bitouzé,https://github.com/dbitouze/gzt,git@github.com:dbitouze/gzt.git,2020-05-13,2020-05-13,
 hash,l3kernel,The LaTeX3 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,
 hbox,l3kernel,The LaTeX3 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,
 hcoffin,l3kernel,The LaTeX3 Project,https://www.latex-project.org/latex3.html,https://github.com/latex3/latex3.git,https://github.com/latex3/latex3/issues,2012-09-28,2012-09-28,
@@ -123,6 +125,7 @@
 no,l3kernel,The LaTeX3 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,
 notestobib,notes2bib,Joseph Wright,https://github.com/josephwright/notes2bib,https://github.com/josephwright/notes2bib.git,https://github.com/josephwright/notes2bib/issues,2012-11-07,2012-11-07,
 novalue,l3kernel,The LaTeX3 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,
+nwejm,nwejm,Denis Bitouzé,https://github.com/dbitouze/nwejm,git@github.com:dbitouze/nwejm.git,2020-05-13,2020-05-13,
 ocgbase,ocgx2,Alexander Grahn,,https://gitlab.com/agrahn/ocgx2,https://gitlab.com/agrahn/ocgx2/issues,2016-02-26,2020-04-15,
 ocgxii,ocgx2,Alexander Grahn,,https://gitlab.com/agrahn/ocgx2,https://gitlab.com/agrahn/ocgx2/issues,2016-02-26,2020-04-15,
 one,l3kernel,The LaTeX3 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,

Modified: trunk/Master/texmf-dist/doc/latex/l3kernel/l3prefixes.pdf
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Modified: trunk/Master/texmf-dist/doc/latex/l3kernel/l3styleguide.tex
===================================================================
--- trunk/Master/texmf-dist/doc/latex/l3kernel/l3styleguide.tex	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/doc/latex/l3kernel/l3styleguide.tex	2020-05-14 21:16:02 UTC (rev 55142)
@@ -32,7 +32,7 @@
         {latex-team at latex-project.org}%
     }%
 }
-\date{Released 2020-05-11}
+\date{Released 2020-05-14}
 
 \begin{document}
 

Modified: trunk/Master/texmf-dist/doc/latex/l3kernel/l3syntax-changes.pdf
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Modified: trunk/Master/texmf-dist/doc/latex/l3kernel/l3syntax-changes.tex
===================================================================
--- trunk/Master/texmf-dist/doc/latex/l3kernel/l3syntax-changes.tex	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/doc/latex/l3kernel/l3syntax-changes.tex	2020-05-14 21:16:02 UTC (rev 55142)
@@ -32,7 +32,7 @@
         {latex-team at latex-project.org}%
     }%
 }
-\date{Released 2020-05-11}
+\date{Released 2020-05-14}
 
 \newcommand{\TF}{\textit{(TF)}}
 

Modified: trunk/Master/texmf-dist/doc/latex/l3kernel/l3term-glossary.pdf
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Modified: trunk/Master/texmf-dist/doc/latex/l3kernel/l3term-glossary.tex
===================================================================
--- trunk/Master/texmf-dist/doc/latex/l3kernel/l3term-glossary.tex	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/doc/latex/l3kernel/l3term-glossary.tex	2020-05-14 21:16:02 UTC (rev 55142)
@@ -32,7 +32,7 @@
         {latex-team at latex-project.org}%
     }%
 }
-\date{Released 2020-05-11}
+\date{Released 2020-05-14}
 
 \newcommand{\TF}{\textit{(TF)}}
 

Modified: trunk/Master/texmf-dist/doc/latex/l3kernel/source3.pdf
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Modified: trunk/Master/texmf-dist/doc/latex/l3kernel/source3.tex
===================================================================
--- trunk/Master/texmf-dist/doc/latex/l3kernel/source3.tex	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/doc/latex/l3kernel/source3.tex	2020-05-14 21:16:02 UTC (rev 55142)
@@ -53,7 +53,7 @@
          {latex-team at latex-project.org}%
    }%
 }
-\date{Released 2020-05-11}
+\date{Released 2020-05-14}
 
 \pagenumbering{roman}
 \maketitle

Modified: trunk/Master/texmf-dist/doc/latex/l3packages/CHANGELOG.md
===================================================================
--- trunk/Master/texmf-dist/doc/latex/l3packages/CHANGELOG.md	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/doc/latex/l3packages/CHANGELOG.md	2020-05-14 21:16:02 UTC (rev 55142)
@@ -7,6 +7,11 @@
 
 ## [Unreleased]
 
+## [2020-05-14]
+
+### Changed
+- Internal packaging of `xparse` in advance of changes to the LaTeX2e kernel
+
 ## [2020-03-06]
 
 ### Added
@@ -92,7 +97,8 @@
 - Switch to ISO date format
 - Improve cross-module use of internal functions
 
-[Unreleased]: https://github.com/latex3/latex3/compare/2020-03-06...HEAD
+[Unreleased]: https://github.com/latex3/latex3/compare/2020-05-14...HEAD
+[2020-05-14]: https://github.com/latex3/latex3/compare/2020-03-06...2020-05-14
 [2020-03-06]: https://github.com/latex3/latex3/compare/2020-03-03...2020-03-06
 [2020-03-03]: https://github.com/latex3/latex3/compare/2020-02-25...2020-03-03
 [2020-02-25]: https://github.com/latex3/latex3/compare/2020-02-14...2020-02-25

Modified: trunk/Master/texmf-dist/doc/latex/l3packages/README.md
===================================================================
--- trunk/Master/texmf-dist/doc/latex/l3packages/README.md	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/doc/latex/l3packages/README.md	2020-05-14 21:16:02 UTC (rev 55142)
@@ -1,7 +1,7 @@
 LaTeX3 High-Level Concepts
 ==========================
 
-Release 2020-03-06
+Release 2020-05-14
 
 Overview
 --------

Modified: trunk/Master/texmf-dist/doc/latex/l3packages/l3keys2e/l3keys2e.pdf
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Modified: trunk/Master/texmf-dist/source/latex/l3kernel/expl3.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/expl3.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/expl3.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -24,7 +24,7 @@
 %
 %<*driver|generic|package|2ekernel>
 %</driver|generic|package|2ekernel>
-\def\ExplFileDate{2020-05-11}%
+\def\ExplFileDate{2020-05-14}%
 %<*driver>
 \documentclass[full]{l3doc}
 \usepackage{graphicx}
@@ -51,7 +51,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3alloc.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3alloc.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3alloc.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3basics.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3basics.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3basics.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3bootstrap.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3bootstrap.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3bootstrap.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3box.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3box.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3box.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3candidates.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3candidates.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3candidates.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -44,7 +44,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3clist.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3clist.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3clist.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -44,7 +44,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3coffins.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3coffins.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3coffins.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3color-base.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3color-base.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3color-base.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3debug.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3debug.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3debug.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3deprecation.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3deprecation.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3deprecation.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3doc.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3doc.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3doc.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -79,7 +79,7 @@
 %
 % \title{The \cls{l3doc} class}
 % \author{\Team}
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 % \maketitle
 % \tableofcontents
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3docstrip.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3docstrip.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3docstrip.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -63,7 +63,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3expan.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3expan.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3expan.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3file.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3file.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3file.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -44,7 +44,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3final.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3final.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3final.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3flag.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3flag.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3flag.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-assign.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-assign.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-assign.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -40,7 +40,7 @@
 %          {latex-team at latex-project.org}^^A
 %    }^^A
 % }
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 % \maketitle
 %
 % \begin{documentation}

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-aux.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-aux.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-aux.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-basics.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-basics.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-basics.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -40,7 +40,7 @@
 %          {latex-team at latex-project.org}^^A
 %    }^^A
 % }
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-convert.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-convert.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-convert.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-expo.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-expo.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-expo.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -40,7 +40,7 @@
 %          {latex-team at latex-project.org}^^A
 %    }^^A
 % }
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-extended.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-extended.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-extended.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -40,7 +40,7 @@
 %          {latex-team at latex-project.org}^^A
 %    }^^A
 % }
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-logic.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-logic.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-logic.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -40,7 +40,7 @@
 %          {latex-team at latex-project.org}^^A
 %    }^^A
 % }
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-parse.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-parse.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-parse.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -40,7 +40,7 @@
 %          {latex-team at latex-project.org}^^A
 %    }^^A
 % }
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-random.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-random.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-random.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -40,7 +40,7 @@
 %          {latex-team at latex-project.org}^^A
 %    }^^A
 % }
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-round.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-round.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-round.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-traps.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-traps.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-traps.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -40,7 +40,7 @@
 %          {latex-team at latex-project.org}^^A
 %    }^^A
 % }
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 % \maketitle
 %
 % \begin{documentation}

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-trig.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-trig.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3fp-trig.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -40,7 +40,7 @@
 %          {latex-team at latex-project.org}^^A
 %    }^^A
 % }
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3fp.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3fp.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3fp.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -49,7 +49,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3fparray.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3fparray.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3fparray.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -44,7 +44,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3int.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3int.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3int.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3intarray.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3intarray.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3intarray.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -44,7 +44,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3kernel-functions.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3kernel-functions.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3kernel-functions.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3keys.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3keys.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3keys.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %
@@ -939,13 +939,13 @@
 %
 % \subsection{Low-level interface}
 %
-% The low-level key parser is based heavily on \pkg{keyval}, but with a number
-% of additional \enquote{safety} requirements and with the idea that the
-% parsed list of key--value pairs can be processed in a variety of ways.
-% The net result is that this code needs around twice the amount of time
-% as \pkg{keyval} to parse the same list of keys. To optimise speed as far
-% as reasonably practical, a number of lower-level approaches are taken
-% rather than using the higher-level \pkg{expl3} interfaces.
+% The low-level key parser's implementation is based heavily on \pkg{expkv}.
+% Compared to \pkg{keyval} it adds a number of additional \enquote{safety}
+% requirements and allows to process the parsed list of key--value pairs in a
+% variety of ways.  The net result is that this code needs around one and a half
+% the amount of time as \pkg{keyval} to parse the same list of keys. To optimise
+% speed as far as reasonably practical, a number of lower-level approaches are
+% taken rather than using the higher-level \pkg{expl3} interfaces.
 %
 %    \begin{macrocode}
 %<@@=keyval>
@@ -970,9 +970,9 @@
 %    \end{macrocode}
 %
 % \begin{macro}[EXP]{\keyval_parse:NNn}
-%   The main function starts the first of two input loops. The outer loop splits
-%   the key--value list at active commas, the inner loop will do so at other
-%   commas. The use of \cs{s_@@_mark} here prevents loss of braces from the key
+%   The main function starts the first of two loops. The outer loop splits the
+%   key--value list at active commas, the inner loop will do so at other commas.
+%   The use of \cs{s_@@_mark} here prevents loss of braces from the key
 %   argument.
 %    \begin{macrocode}
       \cs_new:Npn \keyval_parse:NNn ##1 ##2 ##3
@@ -982,16 +982,15 @@
 %
 % \begin{macro}[EXP]{\@@_loop_active:NNw}
 %   First a fast test for the end of the loop is done, it'll gobble everything
-%   up to an \cs{s_@@_mark} immediately followed by an \cs{s_@@_tail}. The loop
-%   ending macro will gobble everything to the last \cs{s_@@_mark} in this
-%   definition.
+%   up to a \cs{s_@@_tail}. The loop ending macro will gobble everything to the
+%   last \cs{s_@@_mark} in this definition.
 %   If the end isn't reached yet, start the second loop splitting at other
-%   comments, and after that one iterate the current loop.
+%   commas, and after that one iterate the current loop.
 %    \begin{macrocode}
       \cs_new:Npn \@@_loop_active:NNw ##1 ##2 ##3 #1
         {
           \@@_if_recursion_tail:w ##3
-            \@@_end_loop_active:w \s_@@_mark \s_@@_tail
+            \@@_end_loop_active:w \s_@@_tail
           \@@_loop_other:NNw ##1 ##2 ##3 , \s_@@_tail ,
           \@@_loop_active:NNw ##1 ##2 \s_@@_mark
         }
@@ -998,142 +997,253 @@
 %    \end{macrocode}
 % \end{macro}
 %
+% \begin{macro}[EXP]{\@@_split_other:w, \@@_split_active:w}
+%   These two macros allow to split at the first equals sign of category 12 or
+%   13. At the same time they also execute branching by inserting the first
+%   token following \cs{s_@@_mark} that followed the equals sign. Hence they
+%   also test for the presence of such an equals sign simultaneously.
+%    \begin{macrocode}
+      \cs_new:Npn \@@_split_other:w ##1 = ##2 \s_@@_mark ##3 ##4 \s_@@_stop
+        { ##3 ##1 \s_@@_stop \s_@@_mark ##2 }
+      \cs_new:Npn \@@_split_active:w ##1 #2 ##2 \s_@@_mark ##3 ##4 \s_@@_stop
+        { ##3 ##1 \s_@@_stop \s_@@_mark ##2 }
+%    \end{macrocode}
+% \end{macro}
+%
 % \begin{macro}[EXP]{\@@_loop_other:NNw}
 %   The second loop uses the same test for its end as the first loop, next it
-%   tests whether there are other or active equals signs, throwing an error if
-%   there are both. If there are none, test whether the argument is blank or is
-%   a single key. If there are only active equals signs split at those, else
-%   split at others. Finally, iterate the loop.
+%   splits at the first active equals sign using \cs{@@_split_active:w}.  The
+%   \cs{s_@@_nil} prevents accidental brace stripping and acts as a delimiter in
+%   the next steps. First testing for an active equals sign will reduce the
+%   number of necessary expansion steps for the expected average use case of
+%   other equals signs and hence perform better on average.
 %    \begin{macrocode}
       \cs_new:Npn \@@_loop_other:NNw ##1 ##2 ##3 ,
         {
           \@@_if_recursion_tail:w ##3
-            \@@_end_loop_other:w \s_@@_mark \s_@@_tail
-          \@@_if_has_equal_other:w ##3 = \s_@@_stop
-            \@@_has_false:w \s_@@_mark \s_@@_stop \use_i:nn
-            {
-              \@@_if_has_equal_active:w ##3 #2 \s_@@_stop
-                \@@_has_false:w \s_@@_mark \s_@@_stop \use_i:nn
-                \@@_misplaced_equal_error:
-                { \@@_split_other:w ##3 = \s_@@_stop ##2 }
-            }
-            {
-              \@@_if_has_equal_active:w ##3 #2 \s_@@_stop
-                \@@_has_false:w \s_@@_mark \s_@@_stop \use_i:nn
-                { \@@_split_active:w ##3 #2 \s_@@_stop ##2 }
-                {
-                  \@@_if_blank:w ##3 \s_@@_nil \s_@@_stop
-                    \@@_blank_true:w \s_@@_mark \s_@@_stop \use:n
-                    { \@@_trim:nN { ##3 } \@@_key:nN ##1 }
-                }
-            }
+            \@@_end_loop_other:w \s_@@_tail
+          \@@_split_active:w ##3 \s_@@_nil
+            \s_@@_mark \@@_split_active_auxi:w
+            #2 \s_@@_mark \@@_clean_up_active:w
+            \s_@@_stop
+          ##1 ##2
           \@@_loop_other:NNw ##1 ##2 \s_@@_mark
         }
 %    \end{macrocode}
 % \end{macro}
 %
-% \begin{macro}[EXP]{\@@_split_active:w}
-% \begin{macro}[EXP]{\@@_split_active:nw}
-%   Splits at the first active equals sign and trims the key. Next test whether
-%   there are any more valid split points, if so throw an error and gobble the
-%   remaining \meta{function_2}, which will not yet be gobbled. If there was
-%   only one active equals sign start trimming the spaces off the value and give
-%   control to \cs[no-index]{@@_key_val:nnN}.
+% \begin{macro}[EXP]{\@@_split_active_auxi:w}
+% \begin{macro}[EXP]{\@@_split_active_auxii:w}
+% \begin{macro}[EXP]{\@@_split_active_auxiii:w}
+% \begin{macro}[EXP]{\@@_split_active_auxiv:w}
+% \begin{macro}[EXP]{\@@_split_active_auxv:w}
+%   After \cs{@@_split_active:w} the following will only be called if there was
+%   at least one active equals sign in the current key--value pair. Therefore
+%   this is the execution branch for a key--value pair with an active equals
+%   sign. |##1| will be everything up to the first active equals sign. First it
+%   tests for other equals signs in the key name, which will eventually throw an
+%   error via \cs{@@_misplaced_equal_after_active_error:w}. If none was found we
+%   forward the key to \cs{@@_split_active_auxii:w}.
 %    \begin{macrocode}
-      \cs_new:Npn \@@_split_active:w ##1 #2
-        { \@@_trim:nN { ##1 } \@@_split_active:nw \s_@@_mark }
-      \cs_new:Npn \@@_split_active:nw ##1 ##2 #2 ##3 \s_@@_stop
+      \cs_new:Npn \@@_split_active_auxi:w ##1 \s_@@_stop
         {
-          \@@_if_empty:w \s_@@_mark ##3 \s_@@_stop
-            \@@_has_false:w \s_@@_mark \s_@@_stop \use_i:nn
-            { \@@_misplaced_equal_error: \use_none:n }
-            { \@@_trim:nN { ##2 } \@@_key_val:nnN { ##1 } }
+          \@@_split_other:w ##1 \s_@@_nil
+            \s_@@_mark \@@_misplaced_equal_after_active_error:w
+            = \s_@@_mark \@@_split_active_auxii:w
+            \s_@@_stop
         }
 %    \end{macrocode}
+%   \cs{@@_split_active_auxii:w} gets the correct key name with a leading
+%   \cs{s_@@_mark} as |##1|. It has to sanitise the remainder of the previous
+%   test and trims the key name which will be forwarded to
+%   \cs{@@_split_active_auxiii:w}.
+%    \begin{macrocode}
+      \cs_new:Npn \@@_split_active_auxii:w
+          ##1 \s_@@_nil \s_@@_mark \@@_misplaced_equal_after_active_error:w
+          \s_@@_stop \s_@@_mark
+        { \@@_trim:nN { ##1 } \@@_split_active_auxiii:w }
+%    \end{macrocode}
+%   Next we test for a misplaced active equals sign in the value, if none is
+%   found \cs{@@_split_active_auxiv:w} will be called.
+%    \begin{macrocode}
+      \cs_new:Npn \@@_split_active_auxiii:w ##1 ##2 \s_@@_nil
+        {
+          \@@_split_active:w ##2 \s_@@_nil
+            \s_@@_mark \@@_misplaced_equal_in_split_error:w
+            #2 \s_@@_mark \@@_split_active_auxiv:w
+            \s_@@_stop
+            { ##1 }
+        }
+%    \end{macrocode}
+%   This runs the last test after sanitising the remainder of the previous one.
+%   This time test for a misplaced equals sign of category 12 in the value.
+%   Finally the last auxiliary macro will be called.
+%    \begin{macrocode}
+      \cs_new:Npn \@@_split_active_auxiv:w
+          ##1 \s_@@_nil \s_@@_mark \@@_misplaced_equal_in_split_error:w
+          \s_@@_stop \s_@@_mark
+        {
+          \@@_split_other:w ##1 \s_@@_nil
+            \s_@@_mark \@@_misplaced_equal_in_split_error:w
+            = \s_@@_mark \@@_split_active_auxv:w
+            \s_@@_stop
+        }
+%    \end{macrocode}
+%   This last macro in this execution branch sanitises the last test, trims the
+%   value and passes it to \cs{@@_pair:nnNN}.
+%    \begin{macrocode}
+      \cs_new:Npn \@@_split_active_auxv:w
+          ##1 \s_@@_nil \s_@@_mark \@@_misplaced_equal_in_split_error:w
+          \s_@@_stop \s_@@_mark
+        { \@@_trim:nN { ##1 } \@@_pair:nnNN }
+%    \end{macrocode}
 % \end{macro}
 % \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
 %
-% \begin{macro}[EXP]{\@@_if_has_equal_active:w}
-%   The test for an active equals sign just gobbles tokens until the first
-%   active equals sign and then runs the test for an empty argument.
+% \begin{macro}[EXP]{\@@_clean_up_active:w}
+%   The following is the branch taken if the key--value pair doesn't contain an
+%   active equals sign. The remainder of that test will be cleaned up by
+%   \cs{@@_clean_up_active:w} which will then split at an equals sign of
+%   category other.
 %    \begin{macrocode}
-      \cs_new:Npn \@@_if_has_equal_active:w ##1 #2
-        { \@@_if_empty:w \s_@@_mark }
+      \cs_new:Npn \@@_clean_up_active:w
+          ##1 \s_@@_nil \s_@@_mark \@@_split_active_auxi:w \s_@@_stop \s_@@_mark
+        {
+          \@@_split_other:w ##1 \s_@@_nil
+            \s_@@_mark \@@_split_other_auxi:w
+            = \s_@@_mark \@@_clean_up_other:w
+            \s_@@_stop
+        }
 %    \end{macrocode}
 % \end{macro}
 %
-% We're done with the macros which need active equals signs or commas in their
-% definition, so we can end that scope and call the temporary macro which will
-% do the definitions.
+% \begin{macro}[EXP]{\@@_split_other_auxi:w}
+% \begin{macro}[EXP]{\@@_split_other_auxii:w}
+% \begin{macro}[EXP]{\@@_split_other_auxiii:w}
+%   This is executed if the key--value pair doesn't contain an active equals
+%   sign but at least one other. |##1| of \cs{@@_split_other_auxi:w} will
+%   contain the complete key name, which is trimmed and forwarded to the next
+%   auxiliary macro.
 %    \begin{macrocode}
-    }
-  \char_set_catcode_active:n { `\, }
-  \char_set_catcode_active:n { `\= }
-  \@@_tmp:NN , =
-\group_end:
+      \cs_new:Npn \@@_split_other_auxi:w ##1 \s_@@_stop
+        { \@@_trim:nN { ##1 } \@@_split_other_auxii:w }
 %    \end{macrocode}
+%   We know that the value doesn't contain misplaced active equals signs but we
+%   have to test for others.
+%    \begin{macrocode}
+      \cs_new:Npn \@@_split_other_auxii:w ##1 ##2 \s_@@_nil
+        {
+          \@@_split_other:w ##2 \s_@@_nil
+            \s_@@_mark \@@_misplaced_equal_in_split_error:w
+            = \s_@@_mark \@@_split_other_auxiii:w
+            \s_@@_stop
+            { ##1 }
+        }
+%    \end{macrocode}
+%   \cs{@@_split_other_auxiii:w} sanitises the test for other equals signs,
+%   trims the value and forwards it to \cs{@@_pair:nnNN}.
+%    \begin{macrocode}
+      \cs_new:Npn \@@_split_other_auxiii:w
+          ##1 \s_@@_nil \s_@@_mark \@@_misplaced_equal_in_split_error:w
+          \s_@@_stop \s_@@_mark
+        { \@@_trim:nN { ##1 } \@@_pair:nnNN }
+%    \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
 %
-% \begin{macro}[EXP]{\@@_end_loop_active:w,\@@_end_loop_other:w}
-%   Both of these macros just have to gobble a few tokens to remove the reminder
-%   of the loops current iteration. We do this in a pretty static manner,
-%   explicitly stating every token we know beforehand because this is slightly
-%   faster.
+% \begin{macro}[EXP]{\@@_clean_up_other:w}
+%   \cs{@@_clean_up_other:w} is the last branch that might exist. It is called
+%   if no equals sign was found, hence the only possibilities left are a blank
+%   list element, which is to be skipped, or a lonely key. If it's no empty list
+%   element this will trim the key name and forward it to \cs{@@_key:nNN}.
 %    \begin{macrocode}
-\cs_new:Npn \@@_end_loop_active:w
-    \s_@@_mark \s_@@_tail
-    \@@_loop_other:NNw #1 , \s_@@_tail ,
-    \@@_loop_active:NNw #2 \s_@@_mark
-  { }
-\cs_new:Npn \@@_end_loop_other:w
-    \s_@@_mark \s_@@_tail
-    \@@_if_has_equal_other:w #1 = \s_@@_stop
-    \@@_has_false:w \s_@@_mark \s_@@_stop \use_i:nn
-    #2
-    \@@_loop_other:NNw #3 \s_@@_mark
-  { }
+      \cs_new:Npn \@@_clean_up_other:w
+          ##1 \s_@@_nil \s_@@_mark \@@_split_other_auxi:w \s_@@_stop \s_@@_mark
+        {
+          \@@_if_blank:w ##1 \s_@@_nil \s_@@_stop \@@_blank_true:w
+            \s_@@_mark \s_@@_stop \use:n
+            { \@@_trim:nN { ##1 } \@@_key:nNN }
+        }
 %    \end{macrocode}
 % \end{macro}
 %
-% \begin{macro}[EXP]{\@@_split_other:w}
-% \begin{macro}[EXP]{\@@_split_other:nw}
-%   These work exactly as \cs[no-index]{@@_split_active:wN}, just for
-%   equals signs of category other.
+% \begin{macro}[EXP]{\@@_misplaced_equal_after_active_error:w}
+% \begin{macro}[EXP]{\@@_misplaced_equal_in_split_error:w}
+%   All these two macros do is gobble the remainder of the current other loop
+%   execution and throw an error.
 %    \begin{macrocode}
-\cs_new:Npn \@@_split_other:w #1 =
-  { \@@_trim:nN { #1 } \@@_split_other:nw \s_@@_mark }
-\cs_new:Npn \@@_split_other:nw #1 #2 = #3 \s_@@_stop
-  {
-    \@@_if_empty:w \s_@@_mark #3 \s_@@_stop
-      \@@_has_false:w \s_@@_mark \s_@@_stop \use_i:nn
-      { \@@_misplaced_equal_error: \use_none:n }
-      { \@@_trim:nN { #2 } \@@_key_val:nnN { #1 } }
-  }
+      \cs_new:Npn \@@_misplaced_equal_after_active_error:w
+          \s_@@_mark ##1 \s_@@_stop \s_@@_mark ##2 \s_@@_nil
+          \s_@@_mark ##3 \s_@@_nil ##4 ##5
+        {
+          \__kernel_msg_expandable_error:nn
+            { kernel } { misplaced-equals-sign }
+        }
+      \cs_new:Npn \@@_misplaced_equal_in_split_error:w
+          \s_@@_mark ##1 \s_@@_stop \s_@@_mark ##2 \s_@@_nil
+          ##3 ##4 ##5
+        {
+          \__kernel_msg_expandable_error:nn
+            { kernel } { misplaced-equals-sign }
+        }
 %    \end{macrocode}
 % \end{macro}
 % \end{macro}
 %
-% \begin{macro}[EXP]{\@@_key:nN}
-%   This will get the current key with spaces trimmed and \meta{function_1} as
-%   its arguments. All it has to do is put them in an \cs{exp_not:n} and reorder
-%   them.
+% \begin{macro}[EXP]{\@@_end_loop_other:w, \@@_end_loop_active:w}
+%   All that's left for the parsing loops are the macros which end the
+%   recursion. Both just gobble the remaining tokens of the respective loop
+%   including the next recursion call.
 %    \begin{macrocode}
-\cs_new:Npn \@@_key:nN #1 #2
-  { \exp_not:n { #2 { #1 } } }
+      \cs_new:Npn \@@_end_loop_other:w
+          \s_@@_tail
+          \@@_split_active:w ##1 \s_@@_nil
+          \s_@@_mark \@@_split_active_auxi:w
+          #2 \s_@@_mark \@@_clean_up_active:w
+          \s_@@_stop
+          ##2 ##3
+          \@@_loop_other:NNw ##4 \s_@@_mark
+        { }
+      \cs_new:Npn \@@_end_loop_active:w
+          \s_@@_tail
+          \@@_loop_other:NNw ##1 , \s_@@_tail ,
+          \@@_loop_active:NNw ##2 \s_@@_mark
+        { }
 %    \end{macrocode}
 % \end{macro}
 %
-% \begin{macro}[EXP]{\@@_key_val:nnN}
-%   This will get the key name and value with spaces trimmed. It has to
-%   assert that the key name isn't empty. Afterwards put them into an
-%   \cs{exp_not:n} together with \meta{function_2}. If the key is empty they are
-%   gobbled instead.
+% The parsing loops are done, so here ends the definition of \cs{@@_tmp:NN},
+% which will finally set up the macros.
 %    \begin{macrocode}
-\cs_new:Npn \@@_key_val:nnN #1 #2 #3
+    }
+  \char_set_catcode_active:n { `\, }
+  \char_set_catcode_active:n { `\= }
+  \@@_tmp:NN , =
+\group_end:
+%    \end{macrocode}
+%
+% \begin{macro}[EXP]{\@@_pair:nnNN, \@@_key:nNN}
+%   These macros will be called on the parsed keys and values of the key--value
+%   list. All arguments are completely trimmed. They test for blank key names
+%   and call the functions passed to \cs{keyval_parse:NNn} inside of
+%   \cs{exp_not:n} with the correct arguments.
+%    \begin{macrocode}
+\cs_new:Npn \@@_pair:nnNN #1 #2 #3 #4
   {
-    \@@_if_empty:w \s_@@_mark #2 \s_@@_stop
-      \@@_empty_key:w \s_@@_mark \s_@@_stop
-    \exp_not:n { #3 { #2 } { #1 } }
+    \@@_if_blank:w \s_@@_mark #2 \s_@@_nil \s_@@_stop \@@_blank_key_error:w
+      \s_@@_mark \s_@@_stop
+    \exp_not:n { #4 { #2 } { #1 } }
   }
+\cs_new:Npn \@@_key:nNN #1 #2 #3
+  {
+    \@@_if_blank:w \s_@@_mark #1 \s_@@_nil \s_@@_stop \@@_blank_key_error:w
+      \s_@@_mark \s_@@_stop
+    \exp_not:n { #2 { #1 } }
+  }
 %    \end{macrocode}
 % \end{macro}
 %
@@ -1143,46 +1253,31 @@
 %   with an arbitrary token following the argument. Each of these utilize the
 %   fact that the argument will contain a leading \cs{s_@@_mark}.
 %    \begin{macrocode}
-\cs_new:Npn \@@_if_empty:w #1 \s_@@_mark \s_@@_stop {}
+\cs_new:Npn \@@_if_empty:w #1 \s_@@_mark \s_@@_stop { }
 \cs_new:Npn \@@_if_blank:w \s_@@_mark #1 { \@@_if_empty:w \s_@@_mark }
-\cs_new:Npn \@@_if_recursion_tail:w #1 \s_@@_mark \s_@@_tail {}
+\cs_new:Npn \@@_if_recursion_tail:w \s_@@_mark #1 \s_@@_tail { }
 %    \end{macrocode}
 % \end{macro}
 %
-% \begin{macro}[EXP]{\@@_has_false:w,\@@_blank_true:w,\@@_empty_key:w}
+% \begin{macro}[EXP]{\@@_blank_true:w,\@@_blank_key_error:w}
 %   These macros will be called if the tests above didn't gobble them, they
 %   execute the branching.
 %    \begin{macrocode}
-\cs_new:Npn \@@_has_false:w \s_@@_mark \s_@@_stop \use_i:nn #1 #2 { #2 }
-\cs_new:Npn \@@_blank_true:w \s_@@_mark \s_@@_stop \use:n #1 {}
-\cs_new:Npn \@@_empty_key:w \s_@@_mark \s_@@_stop \exp_not:n #1
-  { \@@_misplaced_equal_error: }
+\cs_new:Npn \@@_blank_true:w \s_@@_mark \s_@@_stop \use:n #1 #2 #3 { }
+\cs_new:Npn \@@_blank_key_error:w \s_@@_mark \s_@@_stop \exp_not:n #1
+  {
+    \__kernel_msg_expandable_error:nn
+      { kernel } { blank-key-name }
+  }
 %    \end{macrocode}
 % \end{macro}
 %
-% \begin{macro}[EXP]{\@@_if_has_equal_other:w}
-%   Another test that works by gobbling tokens until a specific one is hit.
+% Two messages for the low level parsing system.
 %    \begin{macrocode}
-\cs_new:Npn \@@_if_has_equal_other:w #1 =
-  { \@@_if_empty:w \s_@@_mark }
-%    \end{macrocode}
-% \end{macro}
-%
-% \begin{macro}[EXP]{\@@_misplaced_equal_error:}
-%   Just throw an error expandably. This is hid inside a macro so that other
-%   macros don't have to gobble so many tokens, which increases speed for
-%   correct input. This will marginally slow down the error case, but that
-%   doesn't have to be fast anyway.
-%    \begin{macrocode}
-\cs_new:Npn \@@_misplaced_equal_error:
-  { \__kernel_msg_expandable_error:nn { kernel } { misplaced-equals-sign } }
-%    \end{macrocode}
-% \end{macro}
-%
-% One message for the low level parsing system.
-%    \begin{macrocode}
 \__kernel_msg_new:nnn { kernel } { misplaced-equals-sign }
   { Misplaced~equals~sign~in~key-value~input~\msg_line_context: }
+\__kernel_msg_new:nnn { kernel } { blank-key-name }
+  { Blank~key~name~in~key-value~input~\msg_line_context: }
 %    \end{macrocode}
 %
 % \begin{macro}[EXP]{\@@_trim:nN}
@@ -1203,7 +1298,7 @@
           \@@_trim_auxi:w
             ##1
             \s_@@_nil
-            \s_@@_mark #1 {}
+            \s_@@_mark #1 { }
             \s_@@_mark \@@_trim_auxii:w
             \@@_trim_auxiii:w
             #1 \s_@@_nil
@@ -1482,11 +1577,11 @@
     \cs_if_exist:cTF { \c_@@_props_root_str \l_@@_property_str }
       { \@@_define_code:n {#2} }
       {
-         \str_if_empty:NF \l_@@_property_str
-           {
-             \__kernel_msg_error:nnxx { kernel } { key-property-unknown }
-               { \l_@@_property_str } { \l_keys_path_str }
-           }
+        \str_if_empty:NF \l_@@_property_str
+          {
+            \__kernel_msg_error:nnxx { kernel } { key-property-unknown }
+              { \l_@@_property_str } { \l_keys_path_str }
+          }
       }
   }
 %    \end{macrocode}
@@ -2729,7 +2824,7 @@
           }
           {
             \__kernel_msg_error:nnxx { kernel } { key-unknown }
-             { \l_keys_path_str } { \l_@@_module_str }
+              { \l_keys_path_str } { \l_@@_module_str }
           }
       }
   }

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3legacy.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3legacy.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3legacy.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3luatex.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3luatex.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3luatex.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3msg.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3msg.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3msg.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3names.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3names.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3names.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3prg.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3prg.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3prg.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3prop.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3prop.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3prop.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3quark.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3quark.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3quark.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3regex.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3regex.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3regex.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3seq.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3seq.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3seq.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3skip.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3skip.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3skip.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -44,7 +44,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3sort.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3sort.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3sort.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3str-convert.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3str-convert.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3str-convert.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -44,7 +44,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3str.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3str.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3str.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3sys.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3sys.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3sys.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3text-case.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3text-case.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3text-case.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3text-purify.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3text-purify.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3text-purify.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3text.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3text.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3text.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3tl-analysis.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3tl-analysis.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3tl-analysis.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -44,7 +44,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3tl.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3tl.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3tl.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3token.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3token.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3token.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3kernel/l3unicode.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3kernel/l3unicode.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3kernel/l3unicode.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -43,7 +43,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-05-11}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %

Modified: trunk/Master/texmf-dist/source/latex/l3packages/l3keys2e/l3keys2e.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3packages/l3keys2e/l3keys2e.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3packages/l3keys2e/l3keys2e.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -62,7 +62,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-03-06}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %
@@ -139,7 +139,7 @@
 %    \end{macrocode}
 %
 %    \begin{macrocode}
-\ProvidesExplPackage{l3keys2e}{2020-03-06}{}
+\ProvidesExplPackage{l3keys2e}{2020-05-14}{}
   {LaTeX2e option processing using LaTeX3 keys}
 %    \end{macrocode}
 %
@@ -299,8 +299,8 @@
 %   so that there will always be a sign available.
 %    \begin{macrocode}
 \cs_new:Npn \@@_latexe_remove_equals:n #1
-  { \@@_latexe_remove_equals:w #1 = \q_stop }
-\cs_new:Npn \@@_latexe_remove_equals:w #1 = #2 \q_stop { \exp_not:n {#1} }
+  { \@@_latexe_remove_equals:w #1 = \s_@@_stop }
+\cs_new:Npn \@@_latexe_remove_equals:w #1 = #2 \s_@@_stop { \exp_not:n {#1} }
 %    \end{macrocode}
 % \end{macro}
 % \end{macro}

Modified: trunk/Master/texmf-dist/source/latex/l3packages/xfp/xfp.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3packages/xfp/xfp.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3packages/xfp/xfp.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -64,7 +64,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-03-06}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %
@@ -167,7 +167,7 @@
 %    \end{macrocode}
 %
 %    \begin{macrocode}
-\ProvidesExplPackage{xfp}{2020-03-06}{}
+\ProvidesExplPackage{xfp}{2020-05-14}{}
   {L3 Floating point unit}
 %    \end{macrocode}
 %

Modified: trunk/Master/texmf-dist/source/latex/l3packages/xfrac/xfrac.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3packages/xfrac/xfrac.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3packages/xfrac/xfrac.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -65,7 +65,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-03-06}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %
@@ -535,7 +535,7 @@
 %    \end{macrocode}
 %
 %    \begin{macrocode}
-\ProvidesExplPackage{xfrac}{2020-03-06}{}
+\ProvidesExplPackage{xfrac}{2020-05-14}{}
   {L3 Experimental split-level fractions}
 %    \end{macrocode}
 %

Modified: trunk/Master/texmf-dist/source/latex/l3packages/xparse/xparse.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3packages/xparse/xparse.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3packages/xparse/xparse.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -67,7 +67,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-03-06}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %
@@ -304,7 +304,7 @@
 % follow such a command. The most common example is the use of \cmd{\\} in
 % \pkg{amsmath} environments. In \pkg{xparse} terms it has signature
 % \begin{verbatim}
-%   \DeclareDocumentCommad \\ { !s !o } { ... }
+%   \DeclareDocumentCommand \\ { !s !o } { ... }
 % \end{verbatim}
 %
 % \subsection{Required delimited arguments}
@@ -993,7 +993,7 @@
 %    \end{macrocode}
 %
 %    \begin{macrocode}
-\ProvidesExplPackage{xparse}{2020-03-06}{}
+\ProvidesExplPackage{xparse}{2020-05-14}{}
   {L3 Experimental document command parser}
 %    \end{macrocode}
 %
@@ -1019,22 +1019,31 @@
 % \end{variable}
 % \end{variable}
 %
+%    \begin{macrocode}
+%</package>
+%    \end{macrocode}
+%
 % \subsection{Reload check}
 %
 % A simple reload check.
 %    \begin{macrocode}
+%<*core>
 \cs_if_exist:NT \NewDocumentCommand
   { \file_input_stop: }
+%</core>
 %    \end{macrocode}
 %
+%  Load the core code.
 %    \begin{macrocode}
-%</package>
+%<*2ekernel|package>
+\file_input:n { xparse-generic.tex }
+%</2ekernel|package>
 %    \end{macrocode}
 %
 % \subsection{Variables and constants}
 %
 %    \begin{macrocode}
-%<*package|2ekernel>
+%<*!package>
 %    \end{macrocode}
 %
 % \begin{variable}{\c_@@_special_chars_seq}
@@ -1049,6 +1058,17 @@
 %    \end{macrocode}
 % \end{variable}
 %
+%    \begin{macrocode}
+%<*core>
+\if_charcode:w xx
+  \cs_new:Npn \@@_file_end_hook: { }
+\else
+  \ExplSyntaxOn
+  \cs_new:Npn \@@_file_end_hook: { \ExplSyntaxOff }
+\fi:
+%</core>
+%    \end{macrocode}
+%
 % \begin{variable}{\l_@@_arg_spec_tl}
 %   Holds the argument specification after normalization of shorthands.
 %    \begin{macrocode}
@@ -1477,9 +1497,9 @@
 %<*initex>
     \cs_if_exist:cTF { environment~ \l_@@_environment_str }
 %</initex>
-%<*package|2ekernel>
+%<*core>
     \cs_if_exist:cTF { \l_@@_environment_str }
-%</package|2ekernel>
+%</core>
       {
         \__kernel_msg_info:nnxx { xparse } { redefine-environment }
           { \l_@@_environment_str } { \tl_to_str:n {#2} }
@@ -1525,10 +1545,10 @@
         \cs_generate_from_arg_count:cNnn
           { environment~ #1 ~end~aux~ } \cs_set:Npn
           \l_@@_current_arg_int {#4}
-%<*package|2ekernel>
+%<*core>
         \cs_set_eq:cc {#1}       { environment~ #1 }
         \cs_set_eq:cc { end #1 } { environment~ #1 ~end }
-%</package|2ekernel>
+%</core>
       }
   }
 %    \end{macrocode}
@@ -1548,9 +1568,9 @@
 %    \begin{macrocode}
 \cs_new_protected:Npn \@@_start_env:nnnnn #1#2
   {
-%<*package|2ekernel>
+%<*core>
     \cs_if_exist_use:N \conditionally at traceoff
-%</package|2ekernel>
+%</core>
     \str_set:Nn \l_@@_environment_str {#2}
     \bool_set_true:N \l_@@_environment_bool
     \@@_start_aux:ccnnnn
@@ -1560,9 +1580,9 @@
   }
 \cs_new_protected:Npx \@@_start:nNNnnn #1#2#3
   {
-%<*package|2ekernel>
+%<*core>
     \exp_not:n { \cs_if_exist_use:N \conditionally at traceoff }
-%</package|2ekernel>
+%</core>
     \exp_not:c { xparse~function~is~not~expandable }
     \exp_not:n { \bool_set_false:N \l_@@_environment_bool }
     \exp_not:N \@@_start_aux:NNnnnn
@@ -1599,9 +1619,9 @@
   {
     \tl_if_empty:NF \l_@@_defaults_tl { \@@_defaults: }
     \tl_if_empty:NF \l_@@_process_all_tl { \@@_args_process: }
-%<*package|2ekernel>
+%<*core>
     \cs_if_exist_use:N \conditionally at traceon
-%</package|2ekernel>
+%</core>
     \exp_after:wN \l_@@_fn_code_tl \l_@@_args_tl
   }
 %    \end{macrocode}
@@ -1885,11 +1905,39 @@
     \int_incr:N \l_@@_current_arg_int
     \cs_if_exist_use:cF { @@_normalize_type_ \tl_to_str:n {#1} :w }
       {
+        \bool_lazy_any:nTF
+          {
+            { \str_if_eq_p:nn {#1} { G } }
+            { \str_if_eq_p:nn {#1} { g } }
+            { \str_if_eq_p:nn {#1} { l } }
+            { \str_if_eq_p:nn {#1} { u } }
+          }
+          {
+            \__kernel_msg_error:nnxx { xparse } { xparse-argument-type }
+              { \@@_environment_or_command: } { \tl_to_str:n {#1} }
+          }
+          {
+            \__kernel_msg_error:nnxx { xparse } { unknown-argument-type }
+              { \@@_environment_or_command: } { \tl_to_str:n {#1} }
+          }
+        \@@_bad_def:wn
+      }
+  }
+%</!package>
+%<*package>
+\cs_gset_protected:Npn \@@_normalize_arg_spec_loop:n #1
+  {
+    \quark_if_recursion_tail_stop:n {#1}
+    \int_incr:N \l_@@_current_arg_int
+    \cs_if_exist_use:cF { @@_normalize_type_ \tl_to_str:n {#1} :w }
+      {
         \__kernel_msg_error:nnxx { xparse } { unknown-argument-type }
           { \@@_environment_or_command: } { \tl_to_str:n {#1} }
         \@@_bad_def:wn
       }
   }
+%</package>
+%<*!package>
 %    \end{macrocode}
 % \end{macro}
 % \end{macro}
@@ -1923,8 +1971,6 @@
         \quark_if_recursion_tail_stop_do:nn {##1} { \@@_bad_arg_spec:wn }
         \@@_normalize_type_E:w {##1} { }
       }
-    \cs_new_protected:Npn \@@_normalize_type_g:w
-      { \@@_normalize_type_G:w {#1} }
     \cs_new_protected:Npn \@@_normalize_type_o:w
       { \@@_normalize_type_D:w [ ] {#1} }
     \cs_new_protected:Npn \@@_normalize_type_O:w
@@ -1938,6 +1984,12 @@
       { \@@_normalize_type_t:w * }
   }
 \exp_args:No \@@_tmp:w { \c_novalue_tl }
+%</!package>
+%<*package>
+\cs_new_protected:Npx \@@_normalize_type_g:w
+  { \exp_not:N \@@_normalize_type_G:w { \exp_not:V \c_novalue_tl } }
+%</package>
+%<*!package>
 %    \end{macrocode}
 % \end{macro}
 %
@@ -2051,6 +2103,8 @@
         \@@_normalize_E_unique_check:w #2 \q_stop
       }
   }
+%</!package>
+%<*package>
 \cs_new_protected:Npn \@@_normalize_type_G:w #1
   {
     \quark_if_recursion_tail_stop_do:nn {#1} { \@@_bad_arg_spec:wn }
@@ -2059,6 +2113,8 @@
     \tl_put_right:Nn \l_@@_last_delimiters_tl { { } }
     \@@_normalize_arg_spec_loop:n
   }
+%</package>
+%<*!package>
 \cs_new_protected:Npn \@@_normalize_type_t:w #1
   {
     \quark_if_recursion_tail_stop_do:Nn #1 { \@@_bad_arg_spec:wn }
@@ -2095,6 +2151,8 @@
 %   \cs{l_@@_arg_spec_tl}, count the mandatory argument, and empty the
 %   list of last delimiters.
 %    \begin{macrocode}
+%</!package>
+%<*package>
 \cs_new_protected:Npn \@@_normalize_type_l:w
   {
     \@@_normalize_check_lu:N l
@@ -2101,6 +2159,8 @@
     \@@_add_arg_spec_mandatory:n { l }
     \@@_normalize_arg_spec_loop:n
   }
+%</package>
+%<*!package>
 \cs_new_protected:Npn \@@_normalize_type_m:w
   {
     \@@_delimiter_check:nnn { } { m } { \iow_char:N \{ }
@@ -2117,6 +2177,8 @@
     \@@_add_arg_spec_mandatory:n { R #1 #2 {#3} }
     \@@_normalize_arg_spec_loop:n
   }
+%</!package>
+%<*package>
 \cs_new_protected:Npn \@@_normalize_type_u:w #1
   {
     \quark_if_recursion_tail_stop_do:nn {#1} { \@@_bad_arg_spec:wn }
@@ -2124,6 +2186,8 @@
     \@@_add_arg_spec_mandatory:n { u {#1} }
     \@@_normalize_arg_spec_loop:n
   }
+%</package>
+%<*!package>
 \cs_new_protected:Npn \@@_normalize_type_v:w
   {
     \@@_normalize_check_gv:N v
@@ -2482,6 +2546,8 @@
 %   For the \texttt{G} type, the grabber and the default are added to the
 %   signature.
 %    \begin{macrocode}
+%</!package>
+%<*package>
 \cs_new_protected:Npn \@@_add_type_G:w #1
   {
     \@@_flush_m_args:
@@ -2503,6 +2569,8 @@
     \@@_add_grabber:N l
     \@@_prepare_signature:N
   }
+%</package>
+%<*!package>
 %    \end{macrocode}
 % \end{macro}
 %
@@ -2558,6 +2626,8 @@
 %   At the set up stage, the \texttt{u} type argument is identical to the
 %   \texttt{G} type except for the name of the grabber function.
 %    \begin{macrocode}
+%</!package>
+%<*package>
 \cs_new_protected:Npn \@@_add_type_u:w #1
   {
     \@@_flush_m_args:
@@ -2566,6 +2636,8 @@
     \tl_put_right:Nn \l_@@_signature_tl { {#1} }
     \@@_prepare_signature:N
   }
+%</package>
+%<*!package>
 %    \end{macrocode}
 % \end{macro}
 %
@@ -2784,8 +2856,12 @@
 %   parameter text ends with |#| in fact end up being delimited by an
 %   open brace.
 %    \begin{macrocode}
+%</!package>
+%<*package>
 \cs_new_protected:Npn \@@_add_expandable_type_l:w
   { \@@_add_expandable_type_u:w ## }
+%</package>
+%<*!package>
 %    \end{macrocode}
 % \end{macro}
 %
@@ -2834,6 +2910,8 @@
 %   Define an auxiliary that will be used directly in the signature.  It
 %   grabs one argument delimited by |#1| and places it before \cs{q_@@}.
 %    \begin{macrocode}
+%</!package>
+%<*package>
 \cs_new_protected:Npn \@@_add_expandable_type_u:w #1
   {
     \@@_add_default:
@@ -2846,6 +2924,8 @@
       { \exp_not:c  { \l_@@_expandable_aux_name_tl } }
     \@@_prepare_signature:N
   }
+%</package>
+%<*!package>
 %    \end{macrocode}
 % \end{macro}
 %
@@ -3249,6 +3329,8 @@
 %   Optional groups are checked by meaning, so that the same code will
 %   work with, for example, \ConTeXt{}-like input.
 %    \begin{macrocode}
+%</!package>
+%<*package>
 \cs_new_protected:Npn \@@_grab_G:w #1 \@@_run_code:
   {
     \@@_grab_G_aux:nNN {#1} \cs_set_protected_nopar:Npn
@@ -3278,6 +3360,8 @@
       { \l_@@_fn_tl }
       { \@@_add_arg:o \c_novalue_tl }
   }
+%</package>
+%<*!package>
 %    \end{macrocode}
 % \end{macro}
 % \end{macro}
@@ -3290,6 +3374,8 @@
 % \begin{macro}{\@@_grab_l_aux:nN}
 %   Argument grabbers for mandatory \TeX{} arguments are pretty simple.
 %    \begin{macrocode}
+%</!package>
+%<*package>
 \cs_new_protected:Npn \@@_grab_l:w #1 \@@_run_code:
   { \@@_grab_l_aux:nN {#1} \cs_set_protected_nopar:Npn }
 \cs_new_protected:Npn \@@_grab_l_long:w #1 \@@_run_code:
@@ -3301,6 +3387,8 @@
       { \@@_add_arg:n {##1} }
     \l_@@_fn_tl
   }
+%</package>
+%<*!package>
 %    \end{macrocode}
 % \end{macro}
 % \end{macro}
@@ -3472,6 +3560,8 @@
 %   Grabbing up to a list of tokens is quite easy: define the grabber,
 %   and then collect.
 %    \begin{macrocode}
+%</!package>
+%<*package>
 \cs_new_protected:Npn \@@_grab_u:w #1#2 \@@_run_code:
   { \@@_grab_u_aux:nnN {#1} {#2} \cs_set_protected_nopar:Npn }
 \cs_new_protected:Npn \@@_grab_u_long:w #1#2 \@@_run_code:
@@ -3483,6 +3573,8 @@
       { \@@_add_arg:n {##1} }
     \l_@@_fn_tl
   }
+%</package>
+%<*!package>
 %    \end{macrocode}
 % \end{macro}
 % \end{macro}
@@ -3694,10 +3786,10 @@
       \c_@@_special_chars_seq
       \char_set_catcode_other:N
 %</initex>
-%<*package|2ekernel>
+%<*core>
     \cs_set_eq:NN \do \char_set_catcode_other:N
     \dospecials
-%</package|2ekernel>
+%</core>
     \tex_endlinechar:D = `\^^M \scan_stop:
     \bool_if:NTF \l_@@_long_bool
       { \char_set_catcode_other:n { \tex_endlinechar:D } }
@@ -4762,6 +4854,13 @@
     The~letter~'#2'~does~not~specify~a~known~argument~type.
     \c_@@_ignore_def_tl
   }
+\__kernel_msg_new:nnnn { xparse } { xparse-argument-type }
+  { Deprecated~argument~type~'#2'~for~the~#1~requires~xparse. }
+  {
+    The~letter~'#2'~specifies~a~known~argument~type~that~requires~
+    the~xparse~package.
+    \c_@@_ignore_def_tl
+  }
 %    \end{macrocode}
 %
 % Errors when using commands/environments.  The \texttt{if-boolean}
@@ -5112,18 +5211,15 @@
 %
 %    \begin{macrocode}
 %<*2ekernel>
-%    \end{macrocode}
-%
-%    \begin{macrocode}
 \ExplSyntaxOff
-%    \end{macrocode}
-%
-%    \begin{macrocode}
 %</2ekernel>
 %    \end{macrocode}
 %
 %    \begin{macrocode}
-%</package|2ekernel>
+%<*core>
+\@@_file_end_hook:
+%</core>
+%</!package>
 %    \end{macrocode}
 %
 % \end{implementation}

Modified: trunk/Master/texmf-dist/source/latex/l3packages/xparse/xparse.ins
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3packages/xparse/xparse.ins	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3packages/xparse/xparse.ins	2020-05-14 21:16:02 UTC (rev 55142)
@@ -42,7 +42,8 @@
 
 \keepsilent
 
-\generate{\file{xparse.sty} {\from{xparse.dtx} {package}}
-          \file{xparse.ltx} {\from{xparse.dtx} {2ekernel}}}
+\generate{\file{xparse-generic.tex}{\from{xparse.dtx}{core}}
+          \file{xparse.sty}{\from{xparse.dtx}{package}}
+          \file{xparse.ltx}{\from{xparse.dtx}{2ekernel}}}
 
 \endbatchfile

Modified: trunk/Master/texmf-dist/source/latex/l3packages/xtemplate/xtemplate.dtx
===================================================================
--- trunk/Master/texmf-dist/source/latex/l3packages/xtemplate/xtemplate.dtx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/source/latex/l3packages/xtemplate/xtemplate.dtx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -63,7 +63,7 @@
 %    }^^A
 % }
 %
-% \date{Released 2020-03-06}
+% \date{Released 2020-05-14}
 %
 % \maketitle
 %
@@ -682,7 +682,7 @@
 %    \end{macrocode}
 %
 %    \begin{macrocode}
-\ProvidesExplPackage{xtemplate}{2020-03-06}{}
+\ProvidesExplPackage{xtemplate}{2020-05-14}{}
   {L3 Experimental prototype document functions}
 %    \end{macrocode}
 %
@@ -858,6 +858,28 @@
 %    \end{macrocode}
 % \end{variable}
 %
+% \begin{variable}{\s_@@_mark,\s_@@_stop}
+%   Internal scan marks.
+%    \begin{macrocode}
+\scan_new:N \s_@@_mark
+\scan_new:N \s_@@_stop
+%    \end{macrocode}
+% \end{variable}
+%
+% \begin{variable}{\q_@@_nil}
+%   Internal quarks.
+%    \begin{macrocode}
+\quark_new:N \q_@@_nil
+%    \end{macrocode}
+% \end{variable}
+%
+% \begin{macro}[pTF]{\@@_quark_if_nil:n}
+%   Branching quark conditional.
+%    \begin{macrocode}
+\__kernel_quark_new_conditional:Nn \@@_quark_if_nil:N { F }
+%    \end{macrocode}
+% \end{macro}
+%
 % \subsection{Variant of prop functions}
 %
 % \begin{macro}[TF]{\prop_get:NoN}
@@ -1300,7 +1322,7 @@
           {
             \tl_clear:N \l_@@_key_name_tl
             \exp_after:wN \@@_split_keytype_aux:w
-              \l_@@_tmp_tl \q_stop
+              \l_@@_tmp_tl \s_@@_stop
           }
       }
       {
@@ -1311,7 +1333,7 @@
 \use:x
   {
     \cs_new_protected:Npn \exp_not:N \@@_split_keytype_aux:w
-      ##1 \token_to_str:N : ##2 \exp_not:N \q_stop
+      ##1 \token_to_str:N : ##2 \s_@@_stop
       {
         \tl_put_right:Nx \exp_not:N \l_@@_key_name_tl
           { \exp_not:N \tl_to_str:n {##1} }
@@ -1319,7 +1341,7 @@
           {
             \tl_put_right:Nn \exp_not:N \l_@@_key_name_tl
               { \token_to_str:N : }
-            \exp_not:N \@@_split_keytype_aux:w ##2 \exp_not:N \q_stop
+            \exp_not:N \@@_split_keytype_aux:w ##2 \s_@@_stop
           }
           {
             \exp_not:N \tl_if_empty:NTF \exp_not:N \l_@@_key_name_tl
@@ -1357,7 +1379,7 @@
         \tl_if_in:nnT {#1} {##1}
           {
             \cs_set:Npn \@@_split_keytype_arg_aux:w
-              ####1 ##1 ####2 \q_stop
+              ####1 ##1 ####2 \s_@@_stop
               {
                 \tl_if_empty:nT {####1}
                   {
@@ -1366,7 +1388,7 @@
                     \seq_map_break:
                   }
               }
-            \@@_split_keytype_arg_aux:w #1 \q_stop
+            \@@_split_keytype_arg_aux:w #1 \s_@@_stop
           }
       }
     \seq_map_function:NN \c_@@_keytypes_arg_seq
@@ -1374,7 +1396,7 @@
   }
 \cs_generate_variant:Nn \@@_split_keytype_arg:n { o }
 \cs_new:Npn \@@_split_keytype_arg_aux:n #1 { }
-\cs_new:Npn \@@_split_keytype_arg_aux:w #1 \q_stop { }
+\cs_new:Npn \@@_split_keytype_arg_aux:w #1 \s_@@_stop { }
 %    \end{macrocode}
 % \end{macro}
 % \end{macro}
@@ -1628,7 +1650,7 @@
               }
               {
                 \tl_if_in:nnTF {#1} { global }
-                  { \@@_parse_vars_elt_aux:w #1 \q_stop }
+                  { \@@_parse_vars_elt_aux:w #1 \s_@@_stop }
                   {
                     \msg_error:nnx { xtemplate } { bad-variable }
                       { \tl_to_str:n {#1} }
@@ -1637,7 +1659,7 @@
           }
       }
   }
-\cs_new_protected:Npn \@@_parse_vars_elt_aux:w #1 global #2 \q_stop
+\cs_new_protected:Npn \@@_parse_vars_elt_aux:w #1 global #2 \s_@@_stop
   {
     \tl_if_empty:nTF {#1}
       {
@@ -2060,10 +2082,10 @@
     \bool_set_false:N \l_@@_global_bool
     \tl_if_in:onT \l_@@_var_tl { global }
       {
-        \exp_after:wN \@@_find_global_aux:w \l_@@_var_tl \q_stop
+        \exp_after:wN \@@_find_global_aux:w \l_@@_var_tl \s_@@_stop
       }
   }
-\cs_new_protected:Npn \@@_find_global_aux:w  #1 global #2 \q_stop
+\cs_new_protected:Npn \@@_find_global_aux:w  #1 global #2 \s_@@_stop
   {
     \tl_set:Nn \l_@@_var_tl {#2}
     \bool_set_true:N \l_@@_global_bool
@@ -2377,7 +2399,7 @@
       \l_@@_value_tl
       {
         \exp_after:wN \@@_key_to_value_auxii:w \l_@@_value_tl
-          \q_mark global \q_nil \q_stop
+          \s_@@_mark global \q_@@_nil \s_@@_stop
       }
       {
         \msg_error:nnx { xtemplate } { unknown-attribute }
@@ -2384,9 +2406,9 @@
           { \l_@@_tmp_tl }
       }
   }
-\cs_new_protected:Npn \@@_key_to_value_auxii:w #1 global #2#3 \q_stop
+\cs_new_protected:Npn \@@_key_to_value_auxii:w #1 global #2#3 \s_@@_stop
   {
-    \quark_if_nil:NF #2
+    \@@_quark_if_nil:NF #2
       { \tl_set:Nn \l_@@_value_tl {#2} }
   }
 %    \end{macrocode}

Modified: trunk/Master/texmf-dist/tex/latex/l3kernel/expl3-code.tex
===================================================================
--- trunk/Master/texmf-dist/tex/latex/l3kernel/expl3-code.tex	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/tex/latex/l3kernel/expl3-code.tex	2020-05-14 21:16:02 UTC (rev 55142)
@@ -68,7 +68,7 @@
 %% and all files in that bundle must be distributed together.
 %% 
 %% File: expl3.dtx
-\def\ExplFileDate{2020-05-11}%
+\def\ExplFileDate{2020-05-14}%
 \begingroup
   \def\next{\endgroup}%
   \expandafter\ifx\csname PackageError\endcsname\relax
@@ -12818,92 +12818,144 @@
       \cs_new:Npn \__keyval_loop_active:NNw ##1 ##2 ##3 #1
         {
           \__keyval_if_recursion_tail:w ##3
-            \__keyval_end_loop_active:w \s__keyval_mark \s__keyval_tail
+            \__keyval_end_loop_active:w \s__keyval_tail
           \__keyval_loop_other:NNw ##1 ##2 ##3 , \s__keyval_tail ,
           \__keyval_loop_active:NNw ##1 ##2 \s__keyval_mark
         }
+      \cs_new:Npn \__keyval_split_other:w ##1 = ##2 \s__keyval_mark ##3 ##4 \s__keyval_stop
+        { ##3 ##1 \s__keyval_stop \s__keyval_mark ##2 }
+      \cs_new:Npn \__keyval_split_active:w ##1 #2 ##2 \s__keyval_mark ##3 ##4 \s__keyval_stop
+        { ##3 ##1 \s__keyval_stop \s__keyval_mark ##2 }
       \cs_new:Npn \__keyval_loop_other:NNw ##1 ##2 ##3 ,
         {
           \__keyval_if_recursion_tail:w ##3
-            \__keyval_end_loop_other:w \s__keyval_mark \s__keyval_tail
-          \__keyval_if_has_equal_other:w ##3 = \s__keyval_stop
-            \__keyval_has_false:w \s__keyval_mark \s__keyval_stop \use_i:nn
-            {
-              \__keyval_if_has_equal_active:w ##3 #2 \s__keyval_stop
-                \__keyval_has_false:w \s__keyval_mark \s__keyval_stop \use_i:nn
-                \__keyval_misplaced_equal_error:
-                { \__keyval_split_other:w ##3 = \s__keyval_stop ##2 }
-            }
-            {
-              \__keyval_if_has_equal_active:w ##3 #2 \s__keyval_stop
-                \__keyval_has_false:w \s__keyval_mark \s__keyval_stop \use_i:nn
-                { \__keyval_split_active:w ##3 #2 \s__keyval_stop ##2 }
-                {
-                  \__keyval_if_blank:w ##3 \s__keyval_nil \s__keyval_stop
-                    \__keyval_blank_true:w \s__keyval_mark \s__keyval_stop \use:n
-                    { \__keyval_trim:nN { ##3 } \__keyval_key:nN ##1 }
-                }
-            }
+            \__keyval_end_loop_other:w \s__keyval_tail
+          \__keyval_split_active:w ##3 \s__keyval_nil
+            \s__keyval_mark \__keyval_split_active_auxi:w
+            #2 \s__keyval_mark \__keyval_clean_up_active:w
+            \s__keyval_stop
+          ##1 ##2
           \__keyval_loop_other:NNw ##1 ##2 \s__keyval_mark
         }
-      \cs_new:Npn \__keyval_split_active:w ##1 #2
-        { \__keyval_trim:nN { ##1 } \__keyval_split_active:nw \s__keyval_mark }
-      \cs_new:Npn \__keyval_split_active:nw ##1 ##2 #2 ##3 \s__keyval_stop
+      \cs_new:Npn \__keyval_split_active_auxi:w ##1 \s__keyval_stop
         {
-          \__keyval_if_empty:w \s__keyval_mark ##3 \s__keyval_stop
-            \__keyval_has_false:w \s__keyval_mark \s__keyval_stop \use_i:nn
-            { \__keyval_misplaced_equal_error: \use_none:n }
-            { \__keyval_trim:nN { ##2 } \__keyval_key_val:nnN { ##1 } }
+          \__keyval_split_other:w ##1 \s__keyval_nil
+            \s__keyval_mark \__keyval_misplaced_equal_after_active_error:w
+            = \s__keyval_mark \__keyval_split_active_auxii:w
+            \s__keyval_stop
         }
-      \cs_new:Npn \__keyval_if_has_equal_active:w ##1 #2
-        { \__keyval_if_empty:w \s__keyval_mark }
+      \cs_new:Npn \__keyval_split_active_auxii:w
+          ##1 \s__keyval_nil \s__keyval_mark \__keyval_misplaced_equal_after_active_error:w
+          \s__keyval_stop \s__keyval_mark
+        { \__keyval_trim:nN { ##1 } \__keyval_split_active_auxiii:w }
+      \cs_new:Npn \__keyval_split_active_auxiii:w ##1 ##2 \s__keyval_nil
+        {
+          \__keyval_split_active:w ##2 \s__keyval_nil
+            \s__keyval_mark \__keyval_misplaced_equal_in_split_error:w
+            #2 \s__keyval_mark \__keyval_split_active_auxiv:w
+            \s__keyval_stop
+            { ##1 }
+        }
+      \cs_new:Npn \__keyval_split_active_auxiv:w
+          ##1 \s__keyval_nil \s__keyval_mark \__keyval_misplaced_equal_in_split_error:w
+          \s__keyval_stop \s__keyval_mark
+        {
+          \__keyval_split_other:w ##1 \s__keyval_nil
+            \s__keyval_mark \__keyval_misplaced_equal_in_split_error:w
+            = \s__keyval_mark \__keyval_split_active_auxv:w
+            \s__keyval_stop
+        }
+      \cs_new:Npn \__keyval_split_active_auxv:w
+          ##1 \s__keyval_nil \s__keyval_mark \__keyval_misplaced_equal_in_split_error:w
+          \s__keyval_stop \s__keyval_mark
+        { \__keyval_trim:nN { ##1 } \__keyval_pair:nnNN }
+      \cs_new:Npn \__keyval_clean_up_active:w
+          ##1 \s__keyval_nil \s__keyval_mark \__keyval_split_active_auxi:w \s__keyval_stop \s__keyval_mark
+        {
+          \__keyval_split_other:w ##1 \s__keyval_nil
+            \s__keyval_mark \__keyval_split_other_auxi:w
+            = \s__keyval_mark \__keyval_clean_up_other:w
+            \s__keyval_stop
+        }
+      \cs_new:Npn \__keyval_split_other_auxi:w ##1 \s__keyval_stop
+        { \__keyval_trim:nN { ##1 } \__keyval_split_other_auxii:w }
+      \cs_new:Npn \__keyval_split_other_auxii:w ##1 ##2 \s__keyval_nil
+        {
+          \__keyval_split_other:w ##2 \s__keyval_nil
+            \s__keyval_mark \__keyval_misplaced_equal_in_split_error:w
+            = \s__keyval_mark \__keyval_split_other_auxiii:w
+            \s__keyval_stop
+            { ##1 }
+        }
+      \cs_new:Npn \__keyval_split_other_auxiii:w
+          ##1 \s__keyval_nil \s__keyval_mark \__keyval_misplaced_equal_in_split_error:w
+          \s__keyval_stop \s__keyval_mark
+        { \__keyval_trim:nN { ##1 } \__keyval_pair:nnNN }
+      \cs_new:Npn \__keyval_clean_up_other:w
+          ##1 \s__keyval_nil \s__keyval_mark \__keyval_split_other_auxi:w \s__keyval_stop \s__keyval_mark
+        {
+          \__keyval_if_blank:w ##1 \s__keyval_nil \s__keyval_stop \__keyval_blank_true:w
+            \s__keyval_mark \s__keyval_stop \use:n
+            { \__keyval_trim:nN { ##1 } \__keyval_key:nNN }
+        }
+      \cs_new:Npn \__keyval_misplaced_equal_after_active_error:w
+          \s__keyval_mark ##1 \s__keyval_stop \s__keyval_mark ##2 \s__keyval_nil
+          \s__keyval_mark ##3 \s__keyval_nil ##4 ##5
+        {
+          \__kernel_msg_expandable_error:nn
+            { kernel } { misplaced-equals-sign }
+        }
+      \cs_new:Npn \__keyval_misplaced_equal_in_split_error:w
+          \s__keyval_mark ##1 \s__keyval_stop \s__keyval_mark ##2 \s__keyval_nil
+          ##3 ##4 ##5
+        {
+          \__kernel_msg_expandable_error:nn
+            { kernel } { misplaced-equals-sign }
+        }
+      \cs_new:Npn \__keyval_end_loop_other:w
+          \s__keyval_tail
+          \__keyval_split_active:w ##1 \s__keyval_nil
+          \s__keyval_mark \__keyval_split_active_auxi:w
+          #2 \s__keyval_mark \__keyval_clean_up_active:w
+          \s__keyval_stop
+          ##2 ##3
+          \__keyval_loop_other:NNw ##4 \s__keyval_mark
+        { }
+      \cs_new:Npn \__keyval_end_loop_active:w
+          \s__keyval_tail
+          \__keyval_loop_other:NNw ##1 , \s__keyval_tail ,
+          \__keyval_loop_active:NNw ##2 \s__keyval_mark
+        { }
     }
   \char_set_catcode_active:n { `\, }
   \char_set_catcode_active:n { `\= }
   \__keyval_tmp:NN , =
 \group_end:
-\cs_new:Npn \__keyval_end_loop_active:w
-    \s__keyval_mark \s__keyval_tail
-    \__keyval_loop_other:NNw #1 , \s__keyval_tail ,
-    \__keyval_loop_active:NNw #2 \s__keyval_mark
-  { }
-\cs_new:Npn \__keyval_end_loop_other:w
-    \s__keyval_mark \s__keyval_tail
-    \__keyval_if_has_equal_other:w #1 = \s__keyval_stop
-    \__keyval_has_false:w \s__keyval_mark \s__keyval_stop \use_i:nn
-    #2
-    \__keyval_loop_other:NNw #3 \s__keyval_mark
-  { }
-\cs_new:Npn \__keyval_split_other:w #1 =
-  { \__keyval_trim:nN { #1 } \__keyval_split_other:nw \s__keyval_mark }
-\cs_new:Npn \__keyval_split_other:nw #1 #2 = #3 \s__keyval_stop
+\cs_new:Npn \__keyval_pair:nnNN #1 #2 #3 #4
   {
-    \__keyval_if_empty:w \s__keyval_mark #3 \s__keyval_stop
-      \__keyval_has_false:w \s__keyval_mark \s__keyval_stop \use_i:nn
-      { \__keyval_misplaced_equal_error: \use_none:n }
-      { \__keyval_trim:nN { #2 } \__keyval_key_val:nnN { #1 } }
+    \__keyval_if_blank:w \s__keyval_mark #2 \s__keyval_nil \s__keyval_stop \__keyval_blank_key_error:w
+      \s__keyval_mark \s__keyval_stop
+    \exp_not:n { #4 { #2 } { #1 } }
   }
-\cs_new:Npn \__keyval_key:nN #1 #2
-  { \exp_not:n { #2 { #1 } } }
-\cs_new:Npn \__keyval_key_val:nnN #1 #2 #3
+\cs_new:Npn \__keyval_key:nNN #1 #2 #3
   {
-    \__keyval_if_empty:w \s__keyval_mark #2 \s__keyval_stop
-      \__keyval_empty_key:w \s__keyval_mark \s__keyval_stop
-    \exp_not:n { #3 { #2 } { #1 } }
+    \__keyval_if_blank:w \s__keyval_mark #1 \s__keyval_nil \s__keyval_stop \__keyval_blank_key_error:w
+      \s__keyval_mark \s__keyval_stop
+    \exp_not:n { #2 { #1 } }
   }
-\cs_new:Npn \__keyval_if_empty:w #1 \s__keyval_mark \s__keyval_stop {}
+\cs_new:Npn \__keyval_if_empty:w #1 \s__keyval_mark \s__keyval_stop { }
 \cs_new:Npn \__keyval_if_blank:w \s__keyval_mark #1 { \__keyval_if_empty:w \s__keyval_mark }
-\cs_new:Npn \__keyval_if_recursion_tail:w #1 \s__keyval_mark \s__keyval_tail {}
-\cs_new:Npn \__keyval_has_false:w \s__keyval_mark \s__keyval_stop \use_i:nn #1 #2 { #2 }
-\cs_new:Npn \__keyval_blank_true:w \s__keyval_mark \s__keyval_stop \use:n #1 {}
-\cs_new:Npn \__keyval_empty_key:w \s__keyval_mark \s__keyval_stop \exp_not:n #1
-  { \__keyval_misplaced_equal_error: }
-\cs_new:Npn \__keyval_if_has_equal_other:w #1 =
-  { \__keyval_if_empty:w \s__keyval_mark }
-\cs_new:Npn \__keyval_misplaced_equal_error:
-  { \__kernel_msg_expandable_error:nn { kernel } { misplaced-equals-sign } }
+\cs_new:Npn \__keyval_if_recursion_tail:w \s__keyval_mark #1 \s__keyval_tail { }
+\cs_new:Npn \__keyval_blank_true:w \s__keyval_mark \s__keyval_stop \use:n #1 #2 #3 { }
+\cs_new:Npn \__keyval_blank_key_error:w \s__keyval_mark \s__keyval_stop \exp_not:n #1
+  {
+    \__kernel_msg_expandable_error:nn
+      { kernel } { blank-key-name }
+  }
 \__kernel_msg_new:nnn { kernel } { misplaced-equals-sign }
   { Misplaced~equals~sign~in~key-value~input~\msg_line_context: }
+\__kernel_msg_new:nnn { kernel } { blank-key-name }
+  { Blank~key~name~in~key-value~input~\msg_line_context: }
 \group_begin:
   \cs_set_protected:Npn \__keyval_tmp:n #1
     {
@@ -12912,7 +12964,7 @@
           \__keyval_trim_auxi:w
             ##1
             \s__keyval_nil
-            \s__keyval_mark #1 {}
+            \s__keyval_mark #1 { }
             \s__keyval_mark \__keyval_trim_auxii:w
             \__keyval_trim_auxiii:w
             #1 \s__keyval_nil
@@ -13005,11 +13057,11 @@
     \cs_if_exist:cTF { \c__keys_props_root_str \l__keys_property_str }
       { \__keys_define_code:n {#2} }
       {
-         \str_if_empty:NF \l__keys_property_str
-           {
-             \__kernel_msg_error:nnxx { kernel } { key-property-unknown }
-               { \l__keys_property_str } { \l_keys_path_str }
-           }
+        \str_if_empty:NF \l__keys_property_str
+          {
+            \__kernel_msg_error:nnxx { kernel } { key-property-unknown }
+              { \l__keys_property_str } { \l_keys_path_str }
+          }
       }
   }
 \cs_new_protected:Npn \__keys_property_find:n #1
@@ -13772,7 +13824,7 @@
           }
           {
             \__kernel_msg_error:nnxx { kernel } { key-unknown }
-             { \l_keys_path_str } { \l__keys_module_str }
+              { \l_keys_path_str } { \l__keys_module_str }
           }
       }
   }

Modified: trunk/Master/texmf-dist/tex/latex/l3kernel/expl3-generic.tex
===================================================================
--- trunk/Master/texmf-dist/tex/latex/l3kernel/expl3-generic.tex	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/tex/latex/l3kernel/expl3-generic.tex	2020-05-14 21:16:02 UTC (rev 55142)
@@ -19,7 +19,7 @@
 %% and all files in that bundle must be distributed together.
 %% 
 %% File: expl3.dtx
-\def\ExplFileDate{2020-05-11}%
+\def\ExplFileDate{2020-05-14}%
 \let\ExplLoaderFileDate\ExplFileDate
 \begingroup
   \def\tempa{LaTeX2e}%

Modified: trunk/Master/texmf-dist/tex/latex/l3kernel/expl3.ltx
===================================================================
--- trunk/Master/texmf-dist/tex/latex/l3kernel/expl3.ltx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/tex/latex/l3kernel/expl3.ltx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -19,7 +19,7 @@
 %% and all files in that bundle must be distributed together.
 %% 
 %% File: expl3.dtx
-\def\ExplFileDate{2020-05-11}%
+\def\ExplFileDate{2020-05-14}%
 \let\ExplLoaderFileDate\ExplFileDate
 \everyjob\expandafter{\the\everyjob
   \message{L3 programming layer <\ExplFileDate>}%

Modified: trunk/Master/texmf-dist/tex/latex/l3kernel/expl3.sty
===================================================================
--- trunk/Master/texmf-dist/tex/latex/l3kernel/expl3.sty	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/tex/latex/l3kernel/expl3.sty	2020-05-14 21:16:02 UTC (rev 55142)
@@ -19,7 +19,7 @@
 %% and all files in that bundle must be distributed together.
 %% 
 %% File: expl3.dtx
-\def\ExplFileDate{2020-05-11}%
+\def\ExplFileDate{2020-05-14}%
 \let\ExplLoaderFileDate\ExplFileDate
 \ProvidesPackage{expl3}
   [%

Modified: trunk/Master/texmf-dist/tex/latex/l3packages/l3keys2e/l3keys2e.sty
===================================================================
--- trunk/Master/texmf-dist/tex/latex/l3packages/l3keys2e/l3keys2e.sty	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/tex/latex/l3packages/l3keys2e/l3keys2e.sty	2020-05-14 21:16:02 UTC (rev 55142)
@@ -32,7 +32,7 @@
       }%
     \endinput
   }
-\ProvidesExplPackage{l3keys2e}{2020-03-06}{}
+\ProvidesExplPackage{l3keys2e}{2020-05-14}{}
   {LaTeX2e option processing using LaTeX3 keys}
 \cs_generate_variant:Nn \clist_put_right:Nn { Nv }
 \cs_generate_variant:Nn \keys_if_exist:nnT  { nx }
@@ -118,8 +118,8 @@
       }
   }
 \cs_new:Npn \__keys_latexe_remove_equals:n #1
-  { \__keys_latexe_remove_equals:w #1 = \q_stop }
-\cs_new:Npn \__keys_latexe_remove_equals:w #1 = #2 \q_stop { \exp_not:n {#1} }
+  { \__keys_latexe_remove_equals:w #1 = \s__keys_stop }
+\cs_new:Npn \__keys_latexe_remove_equals:w #1 = #2 \s__keys_stop { \exp_not:n {#1} }
 \cs_new_protected:Npn \ProcessKeysOptions #1
   {
     \bool_set_true:N \l__keys_process_class_bool

Modified: trunk/Master/texmf-dist/tex/latex/l3packages/xfp/xfp.sty
===================================================================
--- trunk/Master/texmf-dist/tex/latex/l3packages/xfp/xfp.sty	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/tex/latex/l3packages/xfp/xfp.sty	2020-05-14 21:16:02 UTC (rev 55142)
@@ -33,7 +33,7 @@
     \endinput
   }
 \RequirePackage{xparse}
-\ProvidesExplPackage{xfp}{2020-03-06}{}
+\ProvidesExplPackage{xfp}{2020-05-14}{}
   {L3 Floating point unit}
 \NewExpandableDocumentCommand \fpeval { m } { \fp_eval:n {#1} }
 \NewExpandableDocumentCommand \inteval { m } { \int_eval:n {#1} }

Modified: trunk/Master/texmf-dist/tex/latex/l3packages/xfrac/xfrac.sty
===================================================================
--- trunk/Master/texmf-dist/tex/latex/l3packages/xfrac/xfrac.sty	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/tex/latex/l3packages/xfrac/xfrac.sty	2020-05-14 21:16:02 UTC (rev 55142)
@@ -34,7 +34,7 @@
     \endinput
   }
 \RequirePackage{amstext,graphicx,l3keys2e,textcomp,xparse,xtemplate}
-\ProvidesExplPackage{xfrac}{2020-03-06}{}
+\ProvidesExplPackage{xfrac}{2020-05-14}{}
   {L3 Experimental split-level fractions}
 \keys_define:nn { xfrac }
   {

Added: trunk/Master/texmf-dist/tex/latex/l3packages/xparse/xparse-generic.tex
===================================================================
--- trunk/Master/texmf-dist/tex/latex/l3packages/xparse/xparse-generic.tex	                        (rev 0)
+++ trunk/Master/texmf-dist/tex/latex/l3packages/xparse/xparse-generic.tex	2020-05-14 21:16:02 UTC (rev 55142)
@@ -0,0 +1,2283 @@
+%%
+%% This is file `xparse-generic.tex',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% xparse.dtx  (with options: `core')
+%% 
+%% Copyright (C) 2009-2020 The LaTeX3 Project
+%% 
+%% It may be distributed and/or modified under the conditions of
+%% the LaTeX Project Public License (LPPL), either version 1.3c of
+%% this license or (at your option) any later version.  The latest
+%% version of this license is in the file:
+%% 
+%%    http://www.latex-project.org/lppl.txt
+%% 
+%% This file is part of the "l3packages bundle" (The Work in LPPL)
+%% and all files in that bundle must be distributed together.
+%% 
+%% File: xparse.dtx
+\cs_if_exist:NT \NewDocumentCommand
+  { \file_input_stop: }
+\if_charcode:w xx
+  \cs_new:Npn \__xparse_file_end_hook: { }
+\else
+  \ExplSyntaxOn
+  \cs_new:Npn \__xparse_file_end_hook: { \ExplSyntaxOff }
+\fi:
+\tl_new:N \l__xparse_arg_spec_tl
+\tl_new:N \l__xparse_args_tl
+\tl_new:N \l__xparse_args_i_tl
+\tl_new:N \l__xparse_args_ii_tl
+\int_new:N \l__xparse_current_arg_int
+\bool_new:N \l__xparse_defaults_bool
+\tl_new:N \l__xparse_defaults_tl
+\bool_new:N \l__xparse_environment_bool
+\str_new:N \l__xparse_environment_str
+\bool_new:N \l__xparse_expandable_bool
+\tl_new:N \l__xparse_expandable_aux_name_tl
+\tl_set:Nn \l__xparse_expandable_aux_name_tl
+  {
+    \l__xparse_function_tl \c_space_tl
+    ( arg~ \int_use:N \l__xparse_current_arg_int )
+  }
+\int_new:N \g__xparse_grabber_int
+\tl_new:N \l__xparse_fn_tl
+\tl_new:N \l__xparse_fn_code_tl
+\tl_new:N \l__xparse_function_tl
+\bool_new:N \l__xparse_grab_expandably_bool
+\bool_new:N \l__xparse_obey_spaces_bool
+\tl_new:N \l__xparse_last_delimiters_tl
+\bool_new:N \l__xparse_long_bool
+\int_new:N \l__xparse_m_args_int
+\bool_new:N \l__xparse_prefixed_bool
+\tl_new:N \l__xparse_process_all_tl
+\tl_new:N \l__xparse_process_one_tl
+\bool_new:N \l__xparse_process_some_bool
+\tl_new:N \l__xparse_saved_args_tl
+\tl_new:N \l__xparse_signature_tl
+\bool_new:N \l__xparse_some_obey_spaces_bool
+\bool_new:N \l__xparse_some_long_bool
+\bool_new:N \l__xparse_some_short_bool
+\prop_new:N \l__xparse_tmp_prop
+\tl_new:N \l__xparse_tmpa_tl
+\tl_new:N \l__xparse_tmpb_tl
+\cs_new_eq:NN \__xparse_tmp:w ?
+\cs_new_protected:Npn \__xparse_declare_cmd:Nnn
+  {
+    \bool_set_false:N \l__xparse_expandable_bool
+    \__xparse_declare_cmd_aux:Nnn
+  }
+\cs_new_protected:Npn \__xparse_declare_expandable_cmd:Nnn
+  {
+    \bool_set_true:N \l__xparse_expandable_bool
+    \__xparse_declare_cmd_aux:Nnn
+  }
+\cs_new_protected:Npn \__xparse_declare_cmd_aux:Nnn #1#2#3
+  {
+    \cs_if_exist:NTF #1
+      {
+        \__kernel_msg_info:nnxx { xparse } { redefine-command }
+          { \token_to_str:N #1 } { \tl_to_str:n {#2} }
+      }
+      {
+        \bool_lazy_or:nnT
+          { \cs_if_exist_p:c { \cs_to_str:N #1 ~ code } }
+          { \cs_if_exist_p:c { \cs_to_str:N #1 ~ defaults } }
+          {
+            \__kernel_msg_warning:nnx { xparse } { unsupported-let }
+              { \token_to_str:N #1 }
+          }
+        \__kernel_msg_info:nnxx { xparse } { define-command }
+          { \token_to_str:N #1 } { \tl_to_str:n {#2} }
+      }
+    \bool_set_false:N \l__xparse_environment_bool
+    \__xparse_declare_cmd_internal:Nnnn #1 {#2} {#3} { }
+  }
+\cs_new_protected:Npn \__xparse_declare_cmd_internal:Nnnn #1#2#3#4
+  {
+    \tl_set:Nx \l__xparse_function_tl { \cs_to_str:N #1 }
+    \tl_set:Nx \l__xparse_fn_tl
+      { \exp_not:c { \l__xparse_function_tl \c_space_tl } }
+    \__xparse_normalize_arg_spec:n {#2}
+    \exp_args:No \__xparse_prepare_signature:n \l__xparse_arg_spec_tl
+    \__xparse_declare_cmd_code:Nnn #1 {#2} {#3}
+    #4
+    \__xparse_break_point:n {#2}
+  }
+\cs_generate_variant:Nn \__xparse_declare_cmd_internal:Nnnn { cnx }
+\cs_new_eq:NN \__xparse_break_point:n \use_none:n
+\cs_new_protected:Npn \__xparse_declare_cmd_code:Nnn
+  {
+    \bool_if:NTF \l__xparse_grab_expandably_bool
+      { \__xparse_declare_cmd_code_expandable:Nnn }
+      { \__xparse_declare_cmd_code_aux:Nnn }
+   }
+\cs_new_protected:Npn \__xparse_declare_cmd_code_aux:Nnn #1#2#3
+  {
+    \cs_generate_from_arg_count:cNnn
+      { \l__xparse_function_tl \c_space_tl code }
+      \cs_set_protected:Npn \l__xparse_current_arg_int {#3}
+    \cs_set_protected_nopar:Npx #1
+      {
+        \bool_if:NTF \l__xparse_environment_bool
+          {
+            \__xparse_start_env:nnnnn { \exp_not:n {#2} }
+              { \l__xparse_environment_str }
+          }
+          {
+            \__xparse_start:nNNnnn { \exp_not:n {#2} }
+              \exp_not:c { \l__xparse_function_tl \c_space_tl }
+              \exp_not:c { \l__xparse_function_tl \c_space_tl code }
+          }
+          { \exp_not:o \l__xparse_signature_tl }
+          {
+            \bool_if:NT \l__xparse_defaults_bool
+              { \exp_not:o \l__xparse_defaults_tl }
+          }
+          {
+            \bool_if:NT \l__xparse_process_some_bool
+              { \exp_not:o \l__xparse_process_all_tl }
+          }
+      }
+  }
+\cs_new_protected:Npn \__xparse_declare_cmd_code_expandable:Nnn #1#2#3
+  {
+    \exp_args:Ncc \cs_generate_from_arg_count:NNnn
+      { \l__xparse_function_tl \c_space_tl code }
+      { cs_set \bool_if:NF \l__xparse_expandable_bool { _protected } :Npn }
+      \l__xparse_current_arg_int {#3}
+    \bool_if:NT \l__xparse_defaults_bool
+      {
+        \use:x
+          {
+            \cs_generate_from_arg_count:cNnn
+              { \l__xparse_function_tl \c_space_tl defaults }
+              \cs_set:Npn \l__xparse_current_arg_int
+              { \exp_not:o \l__xparse_defaults_tl }
+          }
+      }
+    \bool_if:NTF \l__xparse_expandable_bool
+      { \cs_set_nopar:Npx } { \cs_set_protected_nopar:Npx } #1
+      {
+        \exp_not:N \__xparse_start_expandable:nNNNNn
+          { \exp_not:n {#2} }
+          \exp_not:c { \l__xparse_function_tl \c_space_tl }
+          \exp_not:c
+            {
+              \l__xparse_function_tl \c_space_tl
+              \bool_if:NT \l__xparse_some_short_bool
+                { \bool_if:NT \l__xparse_some_long_bool { \c_space_tl } }
+            }
+          \exp_not:c { \l__xparse_function_tl \c_space_tl code }
+          \bool_if:NTF \l__xparse_defaults_bool
+            { \exp_not:c { \l__xparse_function_tl \c_space_tl defaults } }
+            { ? }
+          { \exp_not:o \l__xparse_signature_tl }
+      }
+    \bool_if:NTF \l__xparse_some_long_bool
+      {
+        \bool_if:NT \l__xparse_some_short_bool
+          {
+            \cs_set_nopar:cpx { \l__xparse_function_tl \c_space_tl \c_space_tl }
+              ##1##2 { ##1 {##2} }
+          }
+        \cs_set:cpx
+      }
+      { \cs_set_nopar:cpx }
+          { \l__xparse_function_tl \c_space_tl } ##1##2 { ##1 {##2} }
+  }
+\cs_new_protected:Npn \__xparse_declare_env:nnnn #1#2
+  {
+    \str_set:Nx \l__xparse_environment_str {#1}
+    \str_set:Nx \l__xparse_environment_str
+      { \tl_trim_spaces:o { \l__xparse_environment_str } }
+    \cs_if_exist:cTF { \l__xparse_environment_str }
+      {
+        \__kernel_msg_info:nnxx { xparse } { redefine-environment }
+          { \l__xparse_environment_str } { \tl_to_str:n {#2} }
+      }
+      {
+        \__kernel_msg_info:nnxx { xparse } { define-environment }
+          { \l__xparse_environment_str } { \tl_to_str:n {#2} }
+      }
+    \bool_set_false:N \l__xparse_expandable_bool
+    \bool_set_true:N \l__xparse_environment_bool
+    \exp_args:NV \__xparse_declare_env_internal:nnnn
+      \l__xparse_environment_str {#2}
+  }
+\cs_new_protected:Npn \__xparse_declare_env_internal:nnnn #1#2#3#4
+  {
+    \__xparse_declare_cmd_internal:cnxn { environment~ #1 } {#2}
+      {
+        \cs_set_nopar:Npx \exp_not:c { environment~ #1 ~end~aux }
+          {
+            \exp_not:N \exp_not:N \exp_not:c { environment~ #1~end~aux~ }
+            \exp_not:n { \exp_not:o \l__xparse_args_tl }
+          }
+        \exp_not:n {#3}
+      }
+      {
+        \cs_set_nopar:cpx { environment~ #1 ~end }
+          { \exp_not:c { environment~ #1 ~end~aux } }
+        \cs_generate_from_arg_count:cNnn
+          { environment~ #1 ~end~aux~ } \cs_set:Npn
+          \l__xparse_current_arg_int {#4}
+        \cs_set_eq:cc {#1}       { environment~ #1 }
+        \cs_set_eq:cc { end #1 } { environment~ #1 ~end }
+      }
+  }
+\cs_new_protected:Npn \__xparse_start_env:nnnnn #1#2
+  {
+    \cs_if_exist_use:N \conditionally at traceoff
+    \str_set:Nn \l__xparse_environment_str {#2}
+    \bool_set_true:N \l__xparse_environment_bool
+    \__xparse_start_aux:ccnnnn
+      { environment~ \l__xparse_environment_str \c_space_tl }
+      { environment~ \l__xparse_environment_str \c_space_tl code }
+      {#1}
+  }
+\cs_new_protected:Npx \__xparse_start:nNNnnn #1#2#3
+  {
+    \exp_not:n { \cs_if_exist_use:N \conditionally at traceoff }
+    \exp_not:c { xparse~function~is~not~expandable }
+    \exp_not:n { \bool_set_false:N \l__xparse_environment_bool }
+    \exp_not:N \__xparse_start_aux:NNnnnn
+    #2 #3 {#1}
+  }
+\cs_new_protected:Npn \__xparse_start_aux:NNnnnn #1#2#3#4#5#6
+  {
+    \tl_clear:N \l__xparse_args_tl
+    \tl_set:Nn \l__xparse_fn_tl {#1}
+    \tl_set:Nn \l__xparse_fn_code_tl {#2}
+    \tl_set:Nn \l__xparse_defaults_tl {#5}
+    \tl_set:Nn \l__xparse_process_all_tl {#6}
+    #4 \__xparse_run_code:
+  }
+\cs_generate_variant:Nn \__xparse_start_aux:NNnnnn { cc }
+\cs_new_protected:Npn \__xparse_run_code:
+  {
+    \tl_if_empty:NF \l__xparse_defaults_tl { \__xparse_defaults: }
+    \tl_if_empty:NF \l__xparse_process_all_tl { \__xparse_args_process: }
+    \cs_if_exist_use:N \conditionally at traceon
+    \exp_after:wN \l__xparse_fn_code_tl \l__xparse_args_tl
+  }
+\cs_new_protected:Npn \__xparse_defaults:
+  {
+    \__xparse_defaults_def:
+    \tl_set_eq:NN \l__xparse_args_i_tl \l__xparse_args_tl
+    \__xparse_defaults_aux: \__xparse_defaults_aux: \__xparse_defaults_aux:
+    \__xparse_defaults_aux: \__xparse_defaults_aux: \__xparse_defaults_aux:
+    \__xparse_defaults_aux: \__xparse_defaults_aux: \__xparse_defaults_aux:
+    \__xparse_defaults_error:w
+    \q_recursion_stop
+    \tl_set_eq:NN \l__xparse_args_tl \l__xparse_args_i_tl
+  }
+\cs_new_protected:Npn \__xparse_defaults_aux:
+  {
+    \tl_set:Nx \l__xparse_args_ii_tl
+      { \exp_after:wN \__xparse_tmp:w \l__xparse_args_i_tl }
+    \tl_if_eq:NNT \l__xparse_args_ii_tl \l__xparse_args_i_tl
+      { \use_none_delimit_by_q_recursion_stop:w }
+    \tl_set_eq:NN \l__xparse_args_i_tl \l__xparse_args_ii_tl
+  }
+\cs_new_protected:Npn \__xparse_defaults_error:w \q_recursion_stop
+  {
+    \__kernel_msg_error:nnx { xparse } { loop-in-defaults }
+      { \__xparse_environment_or_command: }
+  }
+\cs_new_protected:Npn \__xparse_defaults_def:
+  {
+    \tl_clear:N \l__xparse_tmpa_tl
+    \int_zero:N \l__xparse_current_arg_int
+    \__xparse_tl_mapthread_function:NNN \l__xparse_args_tl \l__xparse_defaults_tl
+      \__xparse_defaults_def:nn
+    \cs_generate_from_arg_count:NNVo \__xparse_tmp:w \cs_set:Npn
+      \l__xparse_current_arg_int \l__xparse_tmpa_tl
+  }
+\cs_generate_variant:Nn \cs_generate_from_arg_count:NNnn { NNVo }
+\cs_new_protected:Npn \__xparse_defaults_def:nn
+  {
+    \int_incr:N \l__xparse_current_arg_int
+    \exp_args:NV \__xparse_defaults_def:nnn \l__xparse_current_arg_int
+  }
+\cs_new_protected:Npn \__xparse_defaults_def:nnn #1#2#3
+  {
+    \tl_put_right:Nx \l__xparse_tmpa_tl
+      {
+        {
+          \exp_not:N \exp_not:n
+            {
+              \tl_if_novalue:nTF {#2}
+                { \exp_not:o {#3} }
+                { \exp_not:n { ## #1 } }
+            }
+        }
+      }
+  }
+\cs_new_protected:Npn \__xparse_args_process:
+  {
+    \tl_clear:N \l__xparse_args_ii_tl
+    \__xparse_tl_mapthread_function:NNN
+      \l__xparse_args_tl
+      \l__xparse_process_all_tl
+      \__xparse_args_process_loop:nn
+    \tl_set_eq:NN \l__xparse_args_tl \l__xparse_args_ii_tl
+  }
+\cs_new_protected:Npn \__xparse_args_process_loop:nn #1#2
+  {
+    \tl_set:Nn \ProcessedArgument {#1}
+    \tl_if_novalue:nF {#1}
+      { \tl_map_function:nN {#2} \__xparse_args_process_aux:n }
+    \tl_put_right:No \l__xparse_args_ii_tl
+      { \exp_after:wN { \ProcessedArgument } }
+  }
+\cs_new_protected:Npn \__xparse_args_process_aux:n #1
+  {
+    \cs_generate_from_arg_count:NNnn \__xparse_tmp:w \cs_set:Npn
+      { \tl_count:N \l__xparse_args_tl } {#1}
+    \exp_args:NNNo \exp_after:wN \__xparse_tmp:w \l__xparse_args_tl
+      { \ProcessedArgument }
+  }
+\cs_new:Npn \__xparse_start_expandable:nNNNNn #1#2#3#4#5#6
+  { #6 \__xparse_end_expandable:NNw #5 #4 \q__xparse #2#3 }
+\cs_new:Npn \__xparse_end_expandable:NNw #1#2
+  { \__xparse_end_expandable_aux:w #1#2 \prg_do_nothing: }
+\cs_new:Npn \__xparse_end_expandable_aux:w #1#2#3 \q__xparse
+  { \exp_args:No \__xparse_end_expandable_aux:nNNNN {#3} #1 #2 }
+\cs_new:Npn \__xparse_end_expandable_aux:nNNNN #1#2#3#4#5
+  {
+    \token_if_eq_charcode:NNT ? #2 { \exp_after:wN \use_iv:nnnn }
+    \__xparse_end_expandable_defaults:nnnNNn {#1} { } {#1} #2#3
+      { } { } { } { } { } { } { } { } { } { }
+      {
+        \__kernel_msg_expandable_error:nnf
+          { xparse } { loop-in-defaults }
+          { \exp_args:Nf \tl_trim_spaces:n { \token_to_str:N #4 } }
+        \use_iv:nnnn
+      }
+    \q_stop
+  }
+\cs_new:Npn \__xparse_end_expandable_defaults:nnnNNn #1#2#3#4#5#6
+  {
+    #6
+    \str_if_eq:nnTF {#1} {#2}
+      { \use_i_delimit_by_q_stop:nw { #5 #1 } }
+      {
+        \exp_args:No \__xparse_tl_mapthread_function:nnN
+          { #4 #1 } {#3}
+          \__xparse_end_expandable_defaults:nnw
+        \__xparse_end_expandable_defaults:nnnNNn { } {#1} {#3} #4 #5
+      }
+  }
+\cs_new:Npn \__xparse_end_expandable_defaults:nnw #1#2
+  {
+    \tl_if_novalue:nTF {#2}
+      { \exp_args:No \__xparse_end_expandable_defaults:nw {#1} }
+      { \__xparse_end_expandable_defaults:nw {#2} }
+  }
+\cs_new:Npn \__xparse_end_expandable_defaults:nw
+    #1#2 \__xparse_end_expandable_defaults:nnnNNn #3
+  { #2 \__xparse_end_expandable_defaults:nnnNNn { #3 {#1} } }
+\cs_new_protected:Npn \__xparse_normalize_arg_spec:n #1
+  {
+    \int_zero:N \l__xparse_current_arg_int
+    \tl_clear:N \l__xparse_last_delimiters_tl
+    \tl_clear:N \l__xparse_arg_spec_tl
+    \bool_set_true:N \l__xparse_grab_expandably_bool
+    \bool_set_false:N \l__xparse_obey_spaces_bool
+    \bool_set_false:N \l__xparse_long_bool
+    \bool_set_false:N \l__xparse_some_obey_spaces_bool
+    \bool_set_false:N \l__xparse_some_long_bool
+    \bool_set_false:N \l__xparse_some_short_bool
+    \__xparse_normalize_arg_spec_loop:n #1
+      \q_recursion_tail \q_recursion_tail \q_recursion_tail \q_recursion_stop
+    \int_compare:nNnT \l__xparse_current_arg_int > 9
+      {
+        \__kernel_msg_error:nnxx { xparse } { too-many-arguments }
+          { \__xparse_environment_or_command: } { \tl_to_str:n {#1} }
+        \__xparse_bad_def:wn
+      }
+    \bool_if:NT \l__xparse_expandable_bool
+      {
+        \tl_if_empty:NF \l__xparse_last_delimiters_tl
+          {
+            \__kernel_msg_error:nnxx { xparse } { expandable-ending-optional }
+              { \iow_char:N \\ \l__xparse_function_tl } { \tl_to_str:n {#1} }
+            \__xparse_bad_def:wn
+          }
+      }
+    \bool_if:NT \l__xparse_expandable_bool
+      { \bool_set_true:N \l__xparse_grab_expandably_bool }
+    \bool_if:NT \l__xparse_environment_bool
+      { \bool_set_false:N \l__xparse_grab_expandably_bool }
+  }
+\cs_new_protected:Npn \__xparse_normalize_arg_spec_loop:n #1
+  {
+    \quark_if_recursion_tail_stop:n {#1}
+    \int_incr:N \l__xparse_current_arg_int
+    \cs_if_exist_use:cF { __xparse_normalize_type_ \tl_to_str:n {#1} :w }
+      {
+        \bool_lazy_any:nTF
+          {
+            { \str_if_eq_p:nn {#1} { G } }
+            { \str_if_eq_p:nn {#1} { g } }
+            { \str_if_eq_p:nn {#1} { l } }
+            { \str_if_eq_p:nn {#1} { u } }
+          }
+          {
+            \__kernel_msg_error:nnxx { xparse } { xparse-argument-type }
+              { \__xparse_environment_or_command: } { \tl_to_str:n {#1} }
+          }
+          {
+            \__kernel_msg_error:nnxx { xparse } { unknown-argument-type }
+              { \__xparse_environment_or_command: } { \tl_to_str:n {#1} }
+          }
+        \__xparse_bad_def:wn
+      }
+  }
+\cs_set_protected:Npn \__xparse_tmp:w #1
+  {
+    \cs_new_protected:Npn \__xparse_normalize_type_d:w ##1##2
+      {
+        \quark_if_recursion_tail_stop_do:nn {##2} { \__xparse_bad_arg_spec:wn }
+        \__xparse_normalize_type_D:w {##1} {##2} {#1}
+      }
+    \cs_new_protected:Npn \__xparse_normalize_type_e:w ##1
+      {
+        \quark_if_recursion_tail_stop_do:nn {##1} { \__xparse_bad_arg_spec:wn }
+        \__xparse_normalize_type_E:w {##1} { }
+      }
+    \cs_new_protected:Npn \__xparse_normalize_type_o:w
+      { \__xparse_normalize_type_D:w [ ] {#1} }
+    \cs_new_protected:Npn \__xparse_normalize_type_O:w
+      { \__xparse_normalize_type_D:w [ ] }
+    \cs_new_protected:Npn \__xparse_normalize_type_r:w ##1##2
+      {
+        \quark_if_recursion_tail_stop_do:nn {##2} { \__xparse_bad_arg_spec:wn }
+        \__xparse_normalize_type_R:w {##1} {##2} {#1}
+      }
+    \cs_new_protected:Npn \__xparse_normalize_type_s:w
+      { \__xparse_normalize_type_t:w * }
+  }
+\exp_args:No \__xparse_tmp:w { \c_novalue_tl }
+\cs_new_protected:cpn { __xparse_normalize_type_>:w } #1#2
+  {
+    \quark_if_recursion_tail_stop_do:nn {#2} { \__xparse_bad_arg_spec:wn }
+    \bool_if:NT \l__xparse_expandable_bool
+      {
+        \__kernel_msg_error:nnxx { xparse } { processor-in-expandable }
+          { \iow_char:N \\ \l__xparse_function_tl } { \tl_to_str:n {#1} }
+        \__xparse_bad_def:wn
+      }
+    \tl_put_right:Nx \l__xparse_arg_spec_tl { > { \tl_trim_spaces:n {#1} } }
+    \int_decr:N \l__xparse_current_arg_int
+    \bool_set_false:N \l__xparse_grab_expandably_bool
+    \__xparse_normalize_arg_spec_loop:n {#2}
+  }
+\cs_new_protected:cpn { __xparse_normalize_type_+:w } #1
+  {
+    \quark_if_recursion_tail_stop_do:nn {#1} { \__xparse_bad_arg_spec:wn }
+    \bool_if:NT \l__xparse_long_bool
+      {
+        \__kernel_msg_error:nnxx { xparse } { two-markers }
+          { \__xparse_environment_or_command: } { + }
+        \__xparse_bad_def:wn
+      }
+    \bool_set_true:N \l__xparse_long_bool
+    \int_decr:N \l__xparse_current_arg_int
+    \__xparse_normalize_arg_spec_loop:n {#1}
+  }
+\cs_new_protected:cpn { __xparse_normalize_type_!:w } #1
+  {
+    \quark_if_recursion_tail_stop_do:nn {#1} { \__xparse_bad_arg_spec:wn }
+    \bool_if:NT \l__xparse_obey_spaces_bool
+      {
+        \__kernel_msg_error:nnxx { xparse } { two-markers }
+          { \__xparse_environment_or_command: } { ! }
+        \__xparse_bad_def:wn
+      }
+    \bool_set_true:N \l__xparse_obey_spaces_bool
+    \bool_set_true:N \l__xparse_some_obey_spaces_bool
+    \int_decr:N \l__xparse_current_arg_int
+    \__xparse_normalize_arg_spec_loop:n {#1}
+  }
+\cs_new_protected:Npn \__xparse_normalize_type_D:w #1#2#3
+  {
+    \quark_if_recursion_tail_stop_do:nn {#3} { \__xparse_bad_arg_spec:wn }
+    \__xparse_single_token_check:n {#1} \__xparse_allowed_token_check:N #1
+    \__xparse_single_token_check:n {#2}
+    \__xparse_add_arg_spec:n { D #1 #2 {#3} }
+    \tl_put_right:Nn \l__xparse_last_delimiters_tl {#1}
+    \bool_set_false:N \l__xparse_grab_expandably_bool
+    \__xparse_normalize_arg_spec_loop:n
+  }
+\cs_new_protected:Npn \__xparse_normalize_type_E:w #1#2
+  {
+    \quark_if_recursion_tail_stop_do:nn {#2} { \__xparse_bad_arg_spec:wn }
+    \tl_if_blank:nT {#1} { \__xparse_bad_arg_spec:wn }
+    \tl_map_function:nN {#1} \__xparse_single_token_check:n
+    \tl_map_function:nN {#1} \__xparse_allowed_token_check:N
+    \__xparse_normalize_E_unique_check:w #1 \q_nil \q_stop
+    \int_compare:nNnT { \tl_count:n {#2} } > { \tl_count:n {#1} }
+      { \__xparse_bad_arg_spec:wn }
+    \__xparse_add_arg_spec:n { E {#1} {#2} }
+    \tl_put_right:Nn \l__xparse_last_delimiters_tl {#1}
+    \bool_set_false:N \l__xparse_grab_expandably_bool
+    \int_add:Nn \l__xparse_current_arg_int { \tl_count:n {#1} - 1 }
+    \__xparse_normalize_arg_spec_loop:n
+  }
+\cs_new_protected:Npn \__xparse_normalize_E_unique_check:w #1#2 \q_stop
+  {
+    \quark_if_nil:NF #1
+      {
+        \tl_if_in:nnT {#2} {#1} { \__xparse_bad_arg_spec:wn }
+        \__xparse_normalize_E_unique_check:w #2 \q_stop
+      }
+  }
+\cs_new_protected:Npn \__xparse_normalize_type_t:w #1
+  {
+    \quark_if_recursion_tail_stop_do:Nn #1 { \__xparse_bad_arg_spec:wn }
+    \__xparse_single_token_check:n {#1} \__xparse_allowed_token_check:N #1
+    \tl_put_right:Nx \l__xparse_arg_spec_tl
+      {
+        \bool_if:NT \l__xparse_obey_spaces_bool { ! }
+        t \exp_not:n {#1}
+      }
+    \tl_put_right:Nn \l__xparse_last_delimiters_tl {#1}
+    \bool_set_false:N \l__xparse_grab_expandably_bool
+    \bool_set_false:N \l__xparse_obey_spaces_bool
+    \bool_set_false:N \l__xparse_long_bool
+    \__xparse_normalize_arg_spec_loop:n
+  }
+\cs_new_protected:Npn \__xparse_normalize_type_m:w
+  {
+    \__xparse_delimiter_check:nnn { } { m } { \iow_char:N \{ }
+    \__xparse_add_arg_spec_mandatory:n { m }
+    \__xparse_normalize_arg_spec_loop:n
+  }
+\cs_new_protected:Npn \__xparse_normalize_type_R:w #1#2#3
+  {
+    \quark_if_recursion_tail_stop_do:nn {#3} { \__xparse_bad_arg_spec:wn }
+    \__xparse_single_token_check:n {#1} \__xparse_allowed_token_check:N #1
+    \__xparse_single_token_check:n {#2}
+    \__xparse_delimiter_check:nnn {#1} { R/r } { \tl_to_str:n {#1} }
+    \bool_set_false:N \l__xparse_grab_expandably_bool
+    \__xparse_add_arg_spec_mandatory:n { R #1 #2 {#3} }
+    \__xparse_normalize_arg_spec_loop:n
+  }
+\cs_new_protected:Npn \__xparse_normalize_type_v:w
+  {
+    \__xparse_normalize_check_gv:N v
+    \__xparse_add_arg_spec_mandatory:n { v }
+    \__xparse_normalize_arg_spec_loop:n
+  }
+\cs_new_protected:Npn \__xparse_normalize_type_b:w #1
+  {
+    \bool_if:NF \l__xparse_environment_bool
+      {
+        \__kernel_msg_error:nnxx
+          { xparse } { invalid-command-arg }
+          { \__xparse_environment_or_command: } { b }
+        \__xparse_bad_def:wn
+      }
+    \tl_clear:N \l__xparse_last_delimiters_tl
+    \__xparse_add_arg_spec:n { b }
+    \quark_if_recursion_tail_stop:n {#1}
+    \__kernel_msg_error:nnxx { xparse } { arg-after-body }
+      { \__xparse_environment_or_command: }
+      { \tl_to_str:n {#1} }
+    \__xparse_bad_def:wn
+  }
+\cs_new_protected:Npn \__xparse_single_token_check:n #1
+  {
+    \tl_trim_spaces_apply:nN {#1} \tl_if_single_token:nF
+      {
+        \__kernel_msg_error:nnxx { xparse } { not-single-token }
+          { \__xparse_environment_or_command: } { \tl_to_str:n {#1} }
+        \__xparse_bad_def:wn
+      }
+  }
+\cs_new_protected:Npn \__xparse_allowed_token_check:N #1
+  {
+    \token_if_eq_meaning:NNTF #1 \c_group_begin_token
+        { \use:n }
+        {
+          \token_if_eq_meaning:NNTF #1 \c_group_end_token
+            { \use:n }
+            { \use_none:n }
+        }
+      {
+        \__kernel_msg_error:nnxxx
+          { xparse } { forbidden-implicit-group-token }
+          { \__xparse_environment_or_command: } { \tl_to_str:n {#1} }
+          {
+            \token_if_eq_meaning:NNTF #1 \c_group_begin_token
+              { begin } { end }
+          }
+        \__xparse_bad_def:wn
+      }
+  }
+\cs_new_protected:Npn \__xparse_normalize_check_gv:N #1
+  {
+    \bool_if:NT \l__xparse_expandable_bool
+      {
+        \__kernel_msg_error:nnxx
+          { xparse } { invalid-expandable-argument-type }
+          { \iow_char:N \\ \l__xparse_function_tl } { \tl_to_str:n {#1} }
+        \__xparse_bad_def:wn
+      }
+    \bool_set_false:N \l__xparse_grab_expandably_bool
+  }
+\cs_new_protected:Npn \__xparse_normalize_check_lu:N #1
+  {
+    \bool_if:NT \l__xparse_expandable_bool
+      {
+        \tl_if_empty:NF \l__xparse_last_delimiters_tl
+          {
+            \__kernel_msg_error:nnxx
+              { xparse } { invalid-after-optional-expandably }
+              { \iow_char:N \\ \l__xparse_function_tl } { \tl_to_str:n {#1} }
+            \__xparse_bad_def:wn
+          }
+      }
+  }
+\cs_new_protected:Npn \__xparse_delimiter_check:nnn #1#2#3
+  {
+    \tl_map_inline:Nn \l__xparse_last_delimiters_tl
+      {
+        \tl_if_eq:nnT {##1} {#1}
+          {
+            \__kernel_msg_warning:nnxx { xparse } { optional-mandatory }
+              {#2} {#3}
+          }
+      }
+  }
+\cs_new_protected:Npn \__xparse_bad_arg_spec:wn #1 \__xparse_break_point:n #2
+  {
+    \__kernel_msg_error:nnxx { xparse } { bad-arg-spec }
+      { \__xparse_environment_or_command: } { \tl_to_str:n {#2} }
+  }
+\cs_new_protected:Npn \__xparse_bad_def:wn #1 \__xparse_break_point:n #2 { }
+\cs_new_protected:Npn \__xparse_add_arg_spec:n #1
+  {
+    \bool_lazy_and:nnT
+      { ! \l__xparse_long_bool }
+      { \l__xparse_some_long_bool }
+      {
+        \bool_if:NT \l__xparse_expandable_bool
+          {
+            \__kernel_msg_error:nnx { xparse } { inconsistent-long }
+              { \iow_char:N \\ \l__xparse_function_tl }
+            \__xparse_bad_def:wn
+          }
+        \bool_set_false:N \l__xparse_grab_expandably_bool
+      }
+    \bool_if:NTF \l__xparse_long_bool
+      { \bool_set_true:N \l__xparse_some_long_bool }
+      { \bool_set_true:N \l__xparse_some_short_bool }
+    \tl_put_right:Nx \l__xparse_arg_spec_tl
+      {
+        \bool_if:NT \l__xparse_long_bool { + }
+        \bool_if:NT \l__xparse_obey_spaces_bool { ! }
+        \exp_not:n {#1}
+      }
+    \bool_set_false:N \l__xparse_long_bool
+    \bool_set_false:N \l__xparse_obey_spaces_bool
+  }
+\cs_new_protected:Npn \__xparse_add_arg_spec_mandatory:n #1
+  {
+    \bool_if:NT \l__xparse_some_obey_spaces_bool
+      {
+        \__kernel_msg_error:nnxx { xparse } { non-trailing-obey-spaces }
+          { \__xparse_environment_or_command: } { \tl_to_str:n {#1} }
+        \__xparse_bad_def:wn
+      }
+    \tl_clear:N \l__xparse_last_delimiters_tl
+    \__xparse_add_arg_spec:n {#1}
+  }
+\cs_new_protected:Npn \__xparse_prepare_signature:n #1
+  {
+    \int_zero:N \l__xparse_current_arg_int
+    \bool_set_false:N \l__xparse_long_bool
+    \bool_set_false:N \l__xparse_obey_spaces_bool
+    \int_zero:N \l__xparse_m_args_int
+    \bool_set_false:N \l__xparse_defaults_bool
+    \tl_clear:N \l__xparse_defaults_tl
+    \tl_clear:N \l__xparse_process_all_tl
+    \tl_clear:N \l__xparse_process_one_tl
+    \bool_set_false:N \l__xparse_process_some_bool
+    \tl_clear:N \l__xparse_signature_tl
+    \__xparse_prepare_signature:N #1 \q_recursion_tail \q_recursion_stop
+    \bool_if:NF \l__xparse_expandable_bool { \__xparse_flush_m_args: }
+  }
+\cs_new_protected:Npn \__xparse_prepare_signature:N
+  {
+    \bool_set_false:N \l__xparse_prefixed_bool
+    \__xparse_prepare_signature_bypass:N
+  }
+\cs_new_protected:Npn \__xparse_prepare_signature_bypass:N #1
+  {
+    \quark_if_recursion_tail_stop:N #1
+    \use:c
+      {
+         __xparse_add
+         \bool_if:NT \l__xparse_grab_expandably_bool { _expandable }
+         _type_  \token_to_str:N #1 :w
+      }
+  }
+\cs_new_protected:cpn { __xparse_add_type_+:w }
+  {
+    \__xparse_flush_m_args:
+    \bool_set_true:N \l__xparse_long_bool
+    \bool_set_true:N \l__xparse_prefixed_bool
+    \__xparse_prepare_signature_bypass:N
+  }
+\cs_new_protected:cpn { __xparse_add_type_!:w }
+  {
+    \__xparse_flush_m_args:
+    \bool_set_true:N \l__xparse_obey_spaces_bool
+    \bool_set_true:N \l__xparse_prefixed_bool
+    \__xparse_prepare_signature_bypass:N
+  }
+\cs_new_protected:cpn { __xparse_add_type_>:w } #1
+  {
+    \__xparse_flush_m_args:
+    \bool_set_true:N \l__xparse_prefixed_bool
+    \bool_set_true:N \l__xparse_process_some_bool
+    \tl_put_left:Nn \l__xparse_process_one_tl { {#1} }
+    \__xparse_prepare_signature_bypass:N
+  }
+\cs_new_protected:Npn \__xparse_add_type_b:w
+  {
+    \__xparse_flush_m_args:
+    \__xparse_add_default:
+    \__xparse_add_grabber:N b
+    \__xparse_prepare_signature:N
+  }
+\cs_new_protected:Npn \__xparse_add_type_D:w #1#2#3
+  {
+    \__xparse_flush_m_args:
+    \__xparse_add_default:n {#3}
+    \__xparse_add_grabber:N D
+    \tl_put_right:Nn \l__xparse_signature_tl { #1 #2 }
+    \__xparse_prepare_signature:N
+  }
+\cs_new_protected:Npn \__xparse_add_type_E:w #1#2
+  {
+    \__xparse_flush_m_args:
+    \__xparse_add_default_E:nn {#1} {#2}
+    \__xparse_add_grabber:N E
+    \tl_put_right:Nn \l__xparse_signature_tl { {#1} }
+    \__xparse_prepare_signature:N
+  }
+\cs_new_protected:Npn \__xparse_add_type_m:w
+  {
+    \__xparse_add_default:
+    \bool_if:NTF \l__xparse_prefixed_bool
+      { \__xparse_add_grabber:N m }
+      { \int_incr:N \l__xparse_m_args_int }
+    \__xparse_prepare_signature:N
+  }
+\cs_new_protected:Npn \__xparse_add_type_R:w #1#2#3
+  {
+    \__xparse_flush_m_args:
+    \__xparse_add_default:n {#3}
+    \__xparse_add_grabber:N R
+    \tl_put_right:Nn \l__xparse_signature_tl { #1 #2 }
+    \__xparse_prepare_signature:N
+  }
+\cs_new_protected:Npn \__xparse_add_type_t:w #1
+  {
+    \__xparse_flush_m_args:
+    \__xparse_add_default:
+    \__xparse_add_grabber:N t
+    \tl_put_right:Nn \l__xparse_signature_tl {#1}
+    \__xparse_prepare_signature:N
+  }
+\cs_new_protected:Npn \__xparse_add_type_v:w
+  {
+    \__xparse_flush_m_args:
+    \exp_args:No \__xparse_add_default:n \c_novalue_tl
+    \__xparse_add_grabber:N v
+    \__xparse_prepare_signature:N
+  }
+\cs_new_protected:Npn \__xparse_flush_m_args:
+  {
+    \int_compare:nNnT \l__xparse_m_args_int > 0
+      {
+        \tl_put_right:Nx \l__xparse_signature_tl
+          { \exp_not:c { __xparse_grab_m_ \int_use:N \l__xparse_m_args_int :w } }
+        \tl_put_right:Nx \l__xparse_process_all_tl
+          { \prg_replicate:nn { \l__xparse_m_args_int } { { } } }
+      }
+    \int_zero:N \l__xparse_m_args_int
+  }
+\cs_new_protected:Npn \__xparse_add_grabber:N #1
+  {
+    \tl_put_right:Nx \l__xparse_signature_tl
+      {
+        \exp_not:c
+          {
+            __xparse_grab_ #1
+            \bool_if:NT \l__xparse_long_bool { _long }
+            \bool_if:NT \l__xparse_obey_spaces_bool { _obey_spaces }
+            :w
+          }
+      }
+    \bool_set_false:N \l__xparse_long_bool
+    \bool_set_false:N \l__xparse_obey_spaces_bool
+    \tl_put_right:Nx \l__xparse_process_all_tl
+      { { \exp_not:o \l__xparse_process_one_tl } }
+    \tl_clear:N \l__xparse_process_one_tl
+  }
+\cs_new_protected:Npn \__xparse_add_default:n #1
+  {
+    \tl_if_novalue:nTF {#1}
+      { \__xparse_add_default: }
+      {
+        \int_incr:N \l__xparse_current_arg_int
+        \bool_set_true:N \l__xparse_defaults_bool
+        \tl_put_right:Nn \l__xparse_defaults_tl { { \prg_do_nothing: #1 } }
+      }
+  }
+\cs_new_protected:Npn \__xparse_add_default:
+  {
+    \int_incr:N \l__xparse_current_arg_int
+    \tl_put_right:Nn \l__xparse_defaults_tl { \c_novalue_tl }
+  }
+\cs_new_protected:Npn \__xparse_add_default_E:nn #1#2
+  {
+    \tl_map_function:nN {#2} \__xparse_add_default:n
+    \prg_replicate:nn
+      { \tl_count:n {#1} - \tl_count:n {#2} }
+      { \__xparse_add_default: }
+  }
+\cs_new_protected:cpn { __xparse_add_expandable_type_+:w }
+  {
+    \bool_set_true:N \l__xparse_long_bool
+    \__xparse_prepare_signature:N
+  }
+\cs_new_protected:Npn \__xparse_add_expandable_type_D:w
+  { \__xparse_add_expandable_type_D_aux:NNNn D }
+\cs_new_protected:Npn \__xparse_add_expandable_type_D_aux:NNNn #1#2#3#4
+  {
+    \__xparse_add_default:n {#4}
+    \tl_if_eq:nnTF {#2} {#3}
+      { \__xparse_add_expandable_type_D_aux:NN #1 #2 }
+      { \__xparse_add_expandable_type_D_aux:NNN #1 #2 #3 }
+    \__xparse_prepare_signature:N
+  }
+\cs_new_protected:Npn \__xparse_add_expandable_type_D_aux:NNN #1#2#3
+  {
+    \bool_if:NTF \l__xparse_long_bool
+      { \cs_set:cpx }
+      { \cs_set_nopar:cpx }
+      { \l__xparse_expandable_aux_name_tl } ##1 ##2 #2 ##3 \q__xparse ##4 #3
+      { ##1 {##2} {##3} {##4} }
+    \__xparse_add_expandable_grabber:nn {#1}
+      {
+        \exp_not:c  { \l__xparse_expandable_aux_name_tl }
+        \exp_not:n { #2 #3 }
+      }
+  }
+\cs_new_protected:Npn \__xparse_add_expandable_type_D_aux:NN #1#2
+  {
+    \bool_if:NTF \l__xparse_long_bool
+      { \cs_set:cpx }
+      { \cs_set_nopar:cpx }
+      { \l__xparse_expandable_aux_name_tl } ##1 #2 ##2 #2
+      { ##1 {##2} }
+    \__xparse_add_expandable_grabber:nn { #1_alt }
+      {
+        \exp_not:c  { \l__xparse_expandable_aux_name_tl }
+        \exp_not:n {#2}
+      }
+  }
+\cs_new_protected:Npn \__xparse_add_expandable_type_E:w #1#2
+  {
+    \__xparse_add_default_E:nn {#1} {#2}
+    \tl_clear:N \l__xparse_tmpb_tl
+    \tl_map_function:nN {#1} \__xparse_add_expandable_type_E_aux:n
+    \__xparse_add_expandable_grabber:nn
+      { E \bool_if:NT \l__xparse_long_bool { _long } }
+      {
+        { \exp_not:o \l__xparse_tmpb_tl }
+        {
+          \prg_replicate:nn { \tl_count:n {#1} }
+            { { \c_novalue_tl } }
+        }
+      }
+    \__xparse_prepare_signature:N
+  }
+\cs_new_protected:Npn \__xparse_add_expandable_type_E_aux:n #1
+  {
+    \__xparse_get_grabber:NN #1 \l__xparse_tmpa_tl
+    \tl_put_right:Nx \l__xparse_tmpb_tl
+      { \exp_not:o \l__xparse_tmpa_tl \exp_not:N #1 }
+  }
+\cs_new_protected:Npn \__xparse_add_expandable_type_m:w
+  {
+    \__xparse_add_default:
+    \__xparse_add_expandable_grabber:nn
+      { m \bool_if:NT \l__xparse_long_bool { _long } } { }
+    \__xparse_prepare_signature:N
+  }
+\cs_new_protected:Npn \__xparse_add_expandable_type_R:w
+  { \__xparse_add_expandable_type_D_aux:NNNn R }
+\cs_new_protected:Npn \__xparse_add_expandable_type_t:w #1
+  {
+    \__xparse_add_default:
+    \__xparse_get_grabber:NN #1 \l__xparse_tmpa_tl
+    \__xparse_add_expandable_grabber:nn { t }
+      {
+        \exp_not:o \l__xparse_tmpa_tl
+        \exp_not:N #1
+      }
+    \__xparse_prepare_signature:N
+  }
+\cs_new_protected:Npn \__xparse_add_expandable_grabber:nn #1#2
+  {
+    \tl_put_right:Nx \l__xparse_signature_tl
+      { \exp_not:c { __xparse_expandable_grab_ #1 :w } #2 }
+  }
+\cs_new_protected:Npn \__xparse_get_grabber:NN #1#2
+  {
+    \cs_set:Npn \__xparse_tmp:w ##1 #1 {##1}
+    \exp_args:Nc \__xparse_get_grabber_auxi:NN
+      { __xparse_grabber_ \token_to_str:N #1 :w } #2
+  }
+\cs_new_protected:Npn \__xparse_get_grabber_auxi:NN #1#2
+  {
+    \cs_if_eq:NNTF \__xparse_tmp:w #1
+      { \tl_set:Nn #2 {#1} }
+      {
+        \cs_if_exist:NTF #1
+          {
+            \int_gincr:N \g__xparse_grabber_int
+            \exp_args:Nc \__xparse_get_grabber_auxi:NN
+              {
+                __xparse_grabber_
+                - \int_use:N \g__xparse_grabber_int :w
+              }
+              #2
+          }
+          { \__xparse_get_grabber_auxii:NN #1 #2 }
+      }
+  }
+\cs_new_protected:Npn \__xparse_get_grabber_auxii:NN #1#2
+  {
+    \cs_set_eq:NN #1 \__xparse_tmp:w
+    \tl_set:Nn #2 {#1}
+  }
+\cs_new_protected:Npn \__xparse_grab_b:w
+  { \__xparse_grab_b_aux:NNw \cs_set_protected_nopar:Npn \tl_trim_spaces:n }
+\cs_new_protected:Npn \__xparse_grab_b_long:w
+  { \__xparse_grab_b_aux:NNw \cs_set_protected:Npn \tl_trim_spaces:n }
+\cs_new_protected:Npn \__xparse_grab_b_obey_spaces:w
+  { \__xparse_grab_b_aux:NNw \cs_set_protected_nopar:Npn \exp_not:n }
+\cs_new_protected:Npn \__xparse_grab_b_long_obey_spaces:w
+  { \__xparse_grab_b_aux:NNw \cs_set_protected:Npn \exp_not:n }
+\cs_new_protected:Npn \__xparse_grab_b_aux:NNw #1#2#3 \__xparse_run_code:
+  {
+    \__xparse_grab_D_aux:NNnN \begin \end {#3} #1
+    \tl_put_left:Nn \l__xparse_signature_tl { \__xparse_grab_b_end:Nw #2 }
+    \tl_set_eq:NN \l__xparse_saved_args_tl \l__xparse_args_tl
+    \tl_clear:N \l__xparse_args_tl
+    \exp_args:Nc \l__xparse_fn_tl { begin ~ }
+  }
+\cs_new_protected:Npn \__xparse_grab_b_end:Nw #1#2 \__xparse_run_code:
+  {
+    \tl_set:Nx \l__xparse_args_tl
+      {
+        \exp_not:V \l__xparse_saved_args_tl
+        { \exp_after:wN #1 \l__xparse_args_tl }
+      }
+    #2
+    \__xparse_run_code:
+    \end
+  }
+\cs_new_protected:Npn \__xparse_grab_D:w #1#2#3 \__xparse_run_code:
+  {
+    \__xparse_grab_D_aux:NNnNN #1 #2 {#3} \cs_set_protected_nopar:Npn
+      \__xparse_peek_nonspace_remove:NTF
+  }
+\cs_new_protected:Npn \__xparse_grab_D_long:w #1#2#3 \__xparse_run_code:
+  {
+    \__xparse_grab_D_aux:NNnNN #1 #2 {#3} \cs_set_protected:Npn
+      \__xparse_peek_nonspace_remove:NTF
+  }
+\cs_new_protected:Npn \__xparse_grab_D_obey_spaces:w #1#2#3 \__xparse_run_code:
+  {
+    \__xparse_grab_D_aux:NNnNN #1 #2 {#3} \cs_set_protected_nopar:Npn
+      \__xparse_peek_meaning_remove:NTF
+  }
+\cs_new_protected:Npn \__xparse_grab_D_long_obey_spaces:w #1#2#3 \__xparse_run_code:
+  {
+    \__xparse_grab_D_aux:NNnNN #1 #2 {#3} \cs_set_protected:Npn
+      \__xparse_peek_meaning_remove:NTF
+  }
+\cs_new_protected:Npn \__xparse_grab_D_aux:NNnNN #1#2#3#4#5
+  {
+    \__xparse_grab_D_aux:NNnN #1#2 {#3} #4
+    #5 #1
+      { \__xparse_grab_D_call:Nw #1 }
+      { \__xparse_add_arg:o \c_novalue_tl }
+  }
+\cs_new_protected:Npn \__xparse_grab_D_aux:NNnN #1#2#3#4
+  {
+    \tl_set:Nn \l__xparse_signature_tl {#3}
+    \exp_after:wN #4 \l__xparse_fn_tl ##1 #2
+      {
+        \tl_if_in:nnTF {##1} {#1}
+          { \__xparse_grab_D_nested:NNnN #1 #2 {##1} #4 }
+          {
+            \tl_if_blank:oTF { \use_none:n ##1 }
+              { \__xparse_add_arg:o { \use_none:n ##1 } }
+              {
+                \str_if_eq:eeTF
+                  { \exp_not:o { \use_none:n ##1 } }
+                  { { \exp_not:o { \use_ii:nnn ##1 \q_nil } } }
+                  { \__xparse_add_arg:o { \use_ii:nn ##1 } }
+                  { \__xparse_add_arg:o { \use_none:n ##1 } }
+              }
+          }
+      }
+  }
+\tl_new:N \l__xparse_nesting_a_tl
+\tl_new:N \l__xparse_nesting_b_tl
+\quark_new:N \q__xparse
+\cs_new_protected:Npn \__xparse_grab_D_nested:NNnN #1#2#3#4
+  {
+    \tl_clear:N \l__xparse_nesting_a_tl
+    \tl_clear:N \l__xparse_nesting_b_tl
+    \exp_after:wN #4 \l__xparse_fn_tl ##1 #1 ##2 \q__xparse ##3 #2
+      {
+        \tl_put_right:No \l__xparse_nesting_a_tl { \use_none:n ##1 #1 }
+        \tl_put_right:No \l__xparse_nesting_b_tl { \use_i:nn #2 ##3 }
+        \tl_if_in:nnTF {##2} {#1}
+          {
+            \l__xparse_fn_tl
+              \q_nil ##2 \q__xparse \ERROR
+          }
+          {
+            \tl_put_right:Nx \l__xparse_nesting_a_tl
+              { \__xparse_grab_D_nested:w \q_nil ##2 \q_stop }
+            \tl_if_in:NnTF \l__xparse_nesting_b_tl {#1}
+              {
+                \tl_set_eq:NN \l__xparse_tmpa_tl \l__xparse_nesting_b_tl
+                \tl_clear:N \l__xparse_nesting_b_tl
+                \exp_after:wN \l__xparse_fn_tl \exp_after:wN
+                  \q_nil \l__xparse_tmpa_tl \q_nil \q__xparse \ERROR
+              }
+              {
+                \tl_put_right:No \l__xparse_nesting_a_tl
+                  \l__xparse_nesting_b_tl
+                \__xparse_add_arg:V \l__xparse_nesting_a_tl
+              }
+          }
+      }
+    \l__xparse_fn_tl #3 \q_nil \q__xparse \ERROR
+  }
+\cs_new:Npn \__xparse_grab_D_nested:w #1 \q_nil \q_stop
+  { \exp_not:o { \use_none:n #1 } }
+\cs_new_protected_nopar:Npn \__xparse_grab_D_call:Nw #1
+  {
+    \token_if_eq_catcode:NNTF + #1
+      {
+        \exp_after:wN \exp_after:wN \exp_after:wN
+          \l__xparse_fn_tl \char_generate:nn { `#1 } { 11 }
+      }
+      {
+        \__xparse_token_if_cs:NTF #1
+          {
+            \exp_after:wN \l__xparse_fn_tl
+            \cs:w \cs_to_str:N #1 ~ \cs_end:
+          }
+          {
+            \exp_after:wN \l__xparse_fn_tl
+            \token_to_str:N #1
+          }
+      }
+  }
+\cs_new_protected:Npn \__xparse_grab_E:w #1#2 \__xparse_run_code:
+  {
+    \__xparse_grab_E:nnNN {#1} {#2}
+      \cs_set_protected_nopar:Npn
+      \__xparse_peek_nonspace_remove:NTF
+  }
+\cs_new_protected:Npn \__xparse_grab_E_long:w #1#2 \__xparse_run_code:
+  {
+    \__xparse_grab_E:nnNN {#1} {#2}
+      \cs_set_protected:Npn
+      \__xparse_peek_nonspace_remove:NTF
+  }
+\cs_new_protected:Npn \__xparse_grab_E_obey_spaces:w #1#2 \__xparse_run_code:
+  {
+    \__xparse_grab_E:nnNN {#1} {#2}
+      \cs_set_protected_nopar:Npn
+      \__xparse_peek_meaning_remove:NTF
+  }
+\cs_new_protected:Npn \__xparse_grab_E_long_obey_spaces:w #1#2 \__xparse_run_code:
+  {
+    \__xparse_grab_E:nnNN {#1} {#2}
+      \cs_set_protected:Npn
+      \__xparse_peek_meaning_remove:NTF
+  }
+\cs_new_protected:Npn \__xparse_grab_E:nnNN #1#2#3#4
+  {
+    \exp_after:wN #3 \l__xparse_fn_tl ##1##2##3
+      {
+        \prop_put:Nnn \l__xparse_tmp_prop {##1} {##3}
+        \__xparse_grab_E_loop:NnN #4 { } ##2 \q_recursion_stop
+      }
+    \prop_clear:N \l__xparse_tmp_prop
+    \tl_set:Nn \l__xparse_signature_tl {#2}
+    \cs_set_protected:Npn \__xparse_grab_E_finalise:
+      {
+        \tl_map_inline:nn {#1}
+          {
+            \prop_get:NnNF \l__xparse_tmp_prop {####1} \l__xparse_tmpb_tl
+              { \tl_set_eq:NN \l__xparse_tmpb_tl \c_novalue_tl }
+            \tl_put_right:Nx \l__xparse_args_tl
+              { { \exp_not:V \l__xparse_tmpb_tl } }
+          }
+        \l__xparse_signature_tl \__xparse_run_code:
+      }
+    \__xparse_grab_E_loop:NnN #4 { } #1 \q_recursion_tail \q_recursion_stop
+  }
+\cs_new_protected:Npn \__xparse_grab_E_loop:NnN #1#2#3#4 \q_recursion_stop
+  {
+    \cs_if_eq:NNTF #3 \q_recursion_tail
+      { \__xparse_grab_E_finalise: }
+      {
+        #1 #3
+          { \l__xparse_fn_tl #3 {#2#4} }
+          { \__xparse_grab_E_loop:NnN #1 {#2#3} #4 \q_recursion_stop }
+      }
+  }
+\cs_new_protected:Npn \__xparse_grab_E_finalise: { }
+\cs_new_protected:Npn \__xparse_grab_m:w #1 \__xparse_run_code:
+  {
+    \tl_set:Nn \l__xparse_signature_tl {#1}
+    \exp_after:wN \cs_set_protected_nopar:Npn \l__xparse_fn_tl ##1
+      { \__xparse_add_arg:n {##1} }
+    \l__xparse_fn_tl
+  }
+\cs_new_protected:Npn \__xparse_grab_m_long:w #1 \__xparse_run_code:
+  {
+    \tl_set:Nn \l__xparse_signature_tl {#1}
+    \exp_after:wN \cs_set_protected:Npn \l__xparse_fn_tl ##1
+      { \__xparse_add_arg:n {##1} }
+    \l__xparse_fn_tl
+  }
+\cs_new_protected_nopar:Npn \__xparse_grab_m_aux:Nnnnnnnnn #1#2#3#4#5#6#7#8#9
+  {
+    \tl_put_right:No \l__xparse_args_tl
+      { #1 {#2} {#3} {#4} {#5} {#6} {#7} {#8} {#9} }
+    \l__xparse_signature_tl \__xparse_run_code:
+  }
+\cs_new_protected:cpn { __xparse_grab_m_1:w } #1 \__xparse_run_code:
+  {
+    \tl_set:Nn \l__xparse_signature_tl {#1}
+    \exp_after:wN \cs_set_eq:NN \l__xparse_fn_tl \__xparse_grab_m_aux:Nnnnnnnnn
+    \l__xparse_fn_tl \use_none:nnnnnnn { } { } { } { } { } { } { }
+  }
+\cs_new_protected:cpn { __xparse_grab_m_2:w } #1 \__xparse_run_code:
+  {
+    \tl_set:Nn \l__xparse_signature_tl {#1}
+    \exp_after:wN \cs_set_eq:NN \l__xparse_fn_tl \__xparse_grab_m_aux:Nnnnnnnnn
+    \l__xparse_fn_tl \use_none:nnnnnn { } { } { } { } { } { }
+  }
+\cs_new_protected:cpn { __xparse_grab_m_3:w } #1 \__xparse_run_code:
+  {
+    \tl_set:Nn \l__xparse_signature_tl {#1}
+    \exp_after:wN \cs_set_eq:NN \l__xparse_fn_tl \__xparse_grab_m_aux:Nnnnnnnnn
+    \l__xparse_fn_tl \use_none:nnnnn { } { } { } { } { }
+  }
+\cs_new_protected:cpn { __xparse_grab_m_4:w } #1 \__xparse_run_code:
+  {
+    \tl_set:Nn \l__xparse_signature_tl {#1}
+    \exp_after:wN \cs_set_eq:NN \l__xparse_fn_tl \__xparse_grab_m_aux:Nnnnnnnnn
+    \l__xparse_fn_tl \use_none:nnnn { } { } { } { }
+  }
+\cs_new_protected:cpn { __xparse_grab_m_5:w } #1 \__xparse_run_code:
+  {
+    \tl_set:Nn \l__xparse_signature_tl {#1}
+    \exp_after:wN \cs_set_eq:NN \l__xparse_fn_tl \__xparse_grab_m_aux:Nnnnnnnnn
+    \l__xparse_fn_tl \use_none:nnn { } { } { }
+  }
+\cs_new_protected:cpn { __xparse_grab_m_6:w } #1 \__xparse_run_code:
+  {
+    \tl_set:Nn \l__xparse_signature_tl {#1}
+    \exp_after:wN \cs_set_eq:NN \l__xparse_fn_tl \__xparse_grab_m_aux:Nnnnnnnnn
+    \l__xparse_fn_tl \use_none:nn { } { }
+  }
+\cs_new_protected:cpn { __xparse_grab_m_7:w } #1 \__xparse_run_code:
+  {
+    \tl_set:Nn \l__xparse_signature_tl {#1}
+    \exp_after:wN \cs_set_eq:NN \l__xparse_fn_tl \__xparse_grab_m_aux:Nnnnnnnnn
+    \l__xparse_fn_tl \use_none:n { }
+  }
+\cs_new_protected:cpn { __xparse_grab_m_8:w } #1 \__xparse_run_code:
+  {
+    \tl_set:Nn \l__xparse_signature_tl {#1}
+    \exp_after:wN \cs_set_eq:NN \l__xparse_fn_tl \__xparse_grab_m_aux:Nnnnnnnnn
+    \l__xparse_fn_tl \prg_do_nothing:
+  }
+\cs_new_protected:cpx { __xparse_grab_m_9:w }
+  {
+    \exp_not:c { __xparse_grab_m_5:w }
+    \exp_not:c { __xparse_grab_m_4:w }
+  }
+\cs_new_protected:Npn \__xparse_grab_R:w #1#2#3 \__xparse_run_code:
+  { \__xparse_grab_R_aux:NNnN #1 #2 {#3} \cs_set_protected_nopar:Npn }
+\cs_new_protected:Npn \__xparse_grab_R_long:w #1#2#3 \__xparse_run_code:
+  { \__xparse_grab_R_aux:NNnN #1 #2 {#3} \cs_set_protected:Npn }
+\cs_new_protected:Npn \__xparse_grab_R_aux:NNnN #1#2#3#4
+  {
+    \__xparse_grab_D_aux:NNnN #1 #2 {#3} #4
+    \__xparse_peek_nonspace_remove:NTF #1
+      { \__xparse_grab_D_call:Nw #1 }
+      {
+        \__kernel_msg_error:nnxx { xparse } { missing-required }
+          { \__xparse_environment_or_command: }
+          { \token_to_str:N #1 }
+        \__xparse_add_arg:o \c_novalue_tl
+      }
+  }
+\cs_new_protected:Npn \__xparse_grab_t:w
+  { \__xparse_grab_t_aux:NNw \__xparse_peek_nonspace_remove:NTF }
+\cs_new_protected:Npn \__xparse_grab_t_obey_spaces:w
+  { \__xparse_grab_t_aux:NNw \__xparse_peek_meaning_remove:NTF }
+\cs_new_protected:Npn \__xparse_grab_t_aux:NNw #1#2#3 \__xparse_run_code:
+  {
+    \tl_set:Nn \l__xparse_signature_tl {#3}
+    \exp_after:wN \cs_set_protected:Npn \l__xparse_fn_tl
+      {
+        #1 #2
+          { \__xparse_add_arg:n { \BooleanTrue } }
+          { \__xparse_add_arg:n { \BooleanFalse } }
+      }
+    \l__xparse_fn_tl
+  }
+\tl_new:N \l__xparse_v_arg_tl
+\cs_new_protected:Npn \__xparse_grab_v:w
+  {
+    \bool_set_false:N \l__xparse_long_bool
+    \__xparse_grab_v_aux:w
+  }
+\cs_new_protected:Npn \__xparse_grab_v_long:w
+  {
+    \bool_set_true:N \l__xparse_long_bool
+    \__xparse_grab_v_aux:w
+  }
+\cs_new_protected:Npn \__xparse_grab_v_aux:w #1 \__xparse_run_code:
+  {
+    \tl_set:Nn \l__xparse_signature_tl {#1}
+    \group_begin:
+      \group_align_safe_begin:
+        \tex_escapechar:D = 92 \scan_stop:
+        \tl_clear:N \l__xparse_v_arg_tl
+        \peek_remove_spaces:n
+          {
+            \peek_meaning_remove:NTF \c_group_begin_token
+              {
+                \group_align_safe_end:
+                \__xparse_grab_v_bgroup:
+              }
+              {
+                \peek_N_type:TF
+                  { \__xparse_grab_v_aux_test:N }
+                  { \__xparse_grab_v_aux_abort:n { } }
+              }
+          }
+  }
+\cs_new_protected:Npn \__xparse_grab_v_group_end:
+  {
+        \group_align_safe_end:
+        \exp_args:NNNo
+      \group_end:
+    \tl_set:Nn \l__xparse_v_arg_tl { \l__xparse_v_arg_tl }
+  }
+\cs_new_protected:Npn \__xparse_grab_v_aux_test:N #1
+  {
+    \__xparse_grab_v_token_if_char:NTF #1
+      {
+        \__xparse_grab_v_aux_put:N #1
+        \__xparse_grab_v_aux_catcodes:
+        \__xparse_grab_v_aux_loop:N #1
+      }
+      { \__xparse_grab_v_aux_abort:n {#1} #1 }
+  }
+\cs_new_protected:Npn \__xparse_grab_v_aux_loop:N #1
+  {
+    \peek_N_type:TF
+      { \__xparse_grab_v_aux_loop:NN #1 }
+      { \__xparse_grab_v_aux_abort:n { } }
+  }
+\cs_new_protected:Npn \__xparse_grab_v_aux_loop:NN #1#2
+  {
+    \__xparse_grab_v_token_if_char:NTF #2
+      {
+        \token_if_eq_charcode:NNTF #1 #2
+          { \__xparse_grab_v_aux_loop_end: }
+          {
+            \__xparse_grab_v_aux_put:N #2
+            \__xparse_grab_v_aux_loop:N #1
+          }
+      }
+      { \__xparse_grab_v_aux_abort:n {#2} #2 }
+  }
+\cs_new_protected:Npn \__xparse_grab_v_aux_loop_end:
+  {
+    \__xparse_grab_v_group_end:
+    \__xparse_add_arg:x { \tl_tail:N \l__xparse_v_arg_tl }
+  }
+\int_new:N \l__xparse_v_nesting_int
+\cs_new_protected:Npx \__xparse_grab_v_bgroup:
+  {
+    \exp_not:N \__xparse_grab_v_aux_catcodes:
+    \exp_not:n { \int_set:Nn \l__xparse_v_nesting_int { 1 } }
+    \exp_not:N \__xparse_grab_v_aux_put:N \iow_char:N \{
+    \exp_not:N \__xparse_grab_v_bgroup_loop:
+  }
+\cs_new_protected:Npn \__xparse_grab_v_bgroup_loop:
+  {
+    \peek_N_type:TF
+      { \__xparse_grab_v_bgroup_loop:N }
+      { \__xparse_grab_v_aux_abort:n { } }
+  }
+\cs_new_protected:Npn \__xparse_grab_v_bgroup_loop:N #1
+  {
+    \__xparse_grab_v_token_if_char:NTF #1
+      {
+        \token_if_eq_charcode:NNTF \c_group_end_token #1
+          {
+            \int_decr:N \l__xparse_v_nesting_int
+            \int_compare:nNnTF \l__xparse_v_nesting_int > 0
+              {
+                \__xparse_grab_v_aux_put:N #1
+                \__xparse_grab_v_bgroup_loop:
+              }
+              { \__xparse_grab_v_aux_loop_end: }
+          }
+          {
+            \token_if_eq_charcode:NNT \c_group_begin_token #1
+              { \int_incr:N \l__xparse_v_nesting_int }
+            \__xparse_grab_v_aux_put:N #1
+            \__xparse_grab_v_bgroup_loop:
+          }
+      }
+      { \__xparse_grab_v_aux_abort:n {#1} #1 }
+  }
+\cs_new_protected:Npn \__xparse_grab_v_aux_catcodes:
+  {
+    \cs_set_eq:NN \do \char_set_catcode_other:N
+    \dospecials
+    \tex_endlinechar:D = `\^^M \scan_stop:
+    \bool_if:NTF \l__xparse_long_bool
+      { \char_set_catcode_other:n { \tex_endlinechar:D } }
+      { \char_set_catcode_parameter:n { \tex_endlinechar:D } }
+  }
+\cs_new_protected:Npn \__xparse_grab_v_aux_abort:n #1
+  {
+    \__xparse_grab_v_group_end:
+    \exp_after:wN \exp_after:wN \exp_after:wN
+      \peek_meaning_remove:NTF \char_generate:nn { \tex_endlinechar:D } { 6 }
+      {
+        \__kernel_msg_error:nnxxx { xparse } { verbatim-newline }
+          { \__xparse_environment_or_command: }
+          { \tl_to_str:N \l__xparse_v_arg_tl }
+          { \tl_to_str:n {#1} }
+        \__xparse_add_arg:o \c_novalue_tl
+      }
+      {
+        \__kernel_msg_error:nnxxx { xparse } { verbatim-tokenized }
+          { \__xparse_environment_or_command: }
+          { \tl_to_str:N \l__xparse_v_arg_tl }
+          { \tl_to_str:n {#1} }
+        \__xparse_add_arg:o \c_novalue_tl
+      }
+  }
+\cs_new_protected:Npn \__xparse_grab_v_aux_put:N #1
+  {
+    \tl_put_right:Nx \l__xparse_v_arg_tl
+      {
+        \token_if_active:NTF #1
+          { \exp_not:N #1 } { \token_to_str:N #1 }
+      }
+  }
+\cs_new_protected:Npn \__xparse_grab_v_token_if_char:NTF #1
+  { \str_if_eq:eeTF { } { \str_tail:n {#1} } }
+\cs_new_protected:Npn \__xparse_add_arg:n #1
+  {
+    \tl_put_right:Nn \l__xparse_args_tl { {#1} }
+    \l__xparse_signature_tl \__xparse_run_code:
+  }
+\cs_generate_variant:Nn \__xparse_add_arg:n { V , o , x }
+\cs_new:Npn \__xparse_expandable_grab_D:w #1 \q__xparse #2#3
+  { #2 { \__xparse_expandable_grab_D:NNNwNNn #1 \q__xparse #2 #3 } }
+\cs_set_protected:Npn \__xparse_tmp:w #1
+  {
+    \cs_new:Npn \__xparse_expandable_grab_D:NNNwNNn ##1##2##3##4 \q__xparse ##5##6##7
+      {
+        \str_if_eq:nnTF {##2} {##7}
+          {
+            \str_if_eq:onTF
+              { ##1 { } { } ##7 ##2 \q__xparse ##3 }
+              { { } {##2} { } }
+          }
+          { \use_ii:nn }
+          {
+            ##1
+              { \__xparse_expandable_grab_D:NNNwNNnnn ##1##2##3##4 \q__xparse ##5##6 }
+              \q_nil { } ##2 \ERROR \q__xparse \ERROR
+          }
+          { ##4 {#1} \q__xparse ##5 ##6 {##7} }
+      }
+  }
+\exp_args:No \__xparse_tmp:w { \c_novalue_tl }
+\cs_new:Npn \__xparse_expandable_grab_D:NNNwNNnnn #1#2#3#4 \q__xparse #5#6#7#8#9
+  {
+    \exp_args:Nof \__xparse_expandable_grab_D:nnNNNwNN
+      { \use_ii:nn #7 #2 }
+      { \__xparse_expandable_grab_D:Nw #3 \exp_stop_f: #8 #9 }
+    #1#2#3 #4 \q__xparse #5 #6
+  }
+\cs_new:Npn \__xparse_expandable_grab_D:Nw #1#2 \ERROR \ERROR { #2 #1 }
+\cs_new:Npn \__xparse_expandable_grab_D:nnNNNwNN #1#2#3#4#5#6 \q__xparse #7#8
+  {
+    \exp_args:No \tl_if_empty:oTF
+      { #3 { \use_none:nnn } #2 \q__xparse #5 #4 \q__xparse #5 }
+      {
+        \tl_if_blank:oTF { \use_none:nn #1#2 }
+          { \__xparse_put_arg_expandable:ow { \use_none:nn #1#2 } }
+          {
+            \str_if_eq:eeTF
+              { \exp_not:o { \use_none:nn #1#2 } }
+              { { \exp_not:o { \use_iii:nnnn #1#2 \q_nil } } }
+              { \__xparse_put_arg_expandable:ow { \use_iii:nnn #1#2 } }
+              { \__xparse_put_arg_expandable:ow { \use_none:nn #1#2 } }
+          }
+            #6 \q__xparse #7 #8
+      }
+      {
+        #3
+          { \__xparse_expandable_grab_D:NNNwNNnnn #3#4#5#6 \q__xparse #7 #8 }
+          \q_nil {#1} #2 \ERROR \q__xparse \ERROR
+      }
+  }
+\cs_new:Npn \__xparse_expandable_grab_D_alt:w #1 \q__xparse #2#3
+  { #2 { \__xparse_expandable_grab_D_alt:NNwNNn #1 \q__xparse #2 #3 } }
+\cs_set_protected:Npn \__xparse_tmp:w #1
+  {
+    \cs_new:Npn \__xparse_expandable_grab_D_alt:NNwNNn ##1##2##3 \q__xparse ##4##5##6
+      {
+        \str_if_eq:nnTF {##6} {##2}
+          {
+            \str_if_eq:onTF
+              { ##1 { } ##6 ##2 ##2 }
+              { { } ##2 }
+          }
+          { \use_ii:nn }
+          {
+            ##1
+              { \__xparse_expandable_grab_D_alt:NNwn ##4 ##5 ##3 \q__xparse }
+              ##6 \ERROR
+          }
+          { ##3 {#1} \q__xparse ##4 ##5 {##6} }
+      }
+  }
+\exp_args:No \__xparse_tmp:w { \c_novalue_tl }
+\cs_new:Npn \__xparse_expandable_grab_D_alt:NNwn #1#2#3 \q__xparse #4
+  {
+    \tl_if_blank:oTF { \use_none:n #4 }
+      { \__xparse_put_arg_expandable:ow { \use_none:n #4 } }
+      {
+        \str_if_eq:eeTF
+          { \exp_not:o { \use_none:n #4 } }
+          { { \exp_not:o { \use_ii:nnn #4 \q_nil } } }
+          { \__xparse_put_arg_expandable:ow { \use_ii:nn #4 } }
+          { \__xparse_put_arg_expandable:ow { \use_none:n #4 } }
+      }
+        #3 \q__xparse #1 #2
+  }
+\cs_new:Npn \__xparse_expandable_grab_E:w #1 \q__xparse #2#3
+  { \__xparse_expandable_grab_E_aux:w #1 \q__xparse #2 #3 #3 }
+\cs_new:Npn \__xparse_expandable_grab_E_long:w #1 \q__xparse #2#3
+  { \__xparse_expandable_grab_E_aux:w #1 \q__xparse #2 #3 #2 }
+\cs_new:Npn \__xparse_expandable_grab_E_aux:w #1 \q__xparse #2#3#4
+  { #2 { \__xparse_expandable_grab_E_test:nnw #1 \q__xparse #2 #3 #4 } }
+\cs_new:Npn \__xparse_expandable_grab_E_test:nnw #1#2#3 \q__xparse #4#5#6#7
+  {
+    \__xparse_expandable_grab_E_loop:nnnNNw {#7} { } { }
+      #1 \q_nil \q_nil \q_nil \q_mark #2 \q_nil
+    #3 \q__xparse #4 #5 #6
+  }
+\cs_new:Npn \__xparse_expandable_grab_E_loop:nnnNNw
+    #1#2#3#4#5#6 \q_nil #7 \q_mark #8
+  {
+    \quark_if_nil:NTF #4
+      { \__xparse_expandable_grab_E_end:nnw {#1} {#3} }
+      {
+        \tl_if_novalue:nTF {#8}
+          { \str_if_eq:onTF { #4 { } #1 #5 } {#5} }
+          { \use_ii:nn }
+            { \__xparse_expandable_grab_E_find:w { #2 #4 #5 #6 } {#3} ~ }
+            {
+              \__xparse_expandable_grab_E_loop:nnnNNw
+                {#1} { #2 #4 #5 } { #3 {#8} }
+                #6 \q_nil #7 \q_mark
+            }
+      }
+  }
+\cs_new:Npn \__xparse_expandable_grab_E_find:w #1 \q__xparse #2#3#4
+  { #4 { \__xparse_expandable_grab_E_find:nnw #1 \q__xparse #2 #3 #4 } }
+\cs_new:Npn \__xparse_expandable_grab_E_find:nnw #1#2#3 \q_nil #4 \q__xparse #5#6#7#8
+  { \__xparse_expandable_grab_E_aux:w {#1} { #2 {#8} #3 } #4 \q__xparse #5 #6 #7 }
+\cs_new:Npn \__xparse_expandable_grab_E_end:nnw #1#2#3 \q__xparse #4#5#6
+  { #3 #2 \q__xparse #4 #5 {#1} }
+\cs_new:Npn \__xparse_expandable_grab_m:w #1 \q__xparse #2#3
+  { #3 { \__xparse_expandable_grab_m_aux:wNn #1 \q__xparse #2 #3 } }
+\cs_new:Npn \__xparse_expandable_grab_m_long:w #1 \q__xparse #2#3
+  { #2 { \__xparse_expandable_grab_m_aux:wNn #1 \q__xparse #2 #3 } }
+\cs_new:Npn \__xparse_expandable_grab_m_aux:wNn #1 \q__xparse #2#3#4
+  { #1 {#4} \q__xparse #2 #3 }
+\cs_new:Npn \__xparse_expandable_grab_R:w #1 \q__xparse #2#3
+  { #2 { \__xparse_expandable_grab_R_aux:NNNwNNn #1 \q__xparse #2#3 } }
+\cs_set_protected:Npn \__xparse_tmp:w #1
+  {
+    \cs_new:Npn \__xparse_expandable_grab_R_aux:NNNwNNn ##1##2##3##4 \q__xparse ##5##6##7
+      {
+        \str_if_eq:nnTF {##7} {##2}
+          {
+            \str_if_eq:onTF
+              { ##1 { } { } ##7 ##2 \q__xparse ##3 }
+              { { } {##2} { } }
+          }
+          { \use_ii:nn }
+          {
+            ##1
+              { \__xparse_expandable_grab_D:NNNwNNnnn ##1##2##3##4 \q__xparse ##5##6 }
+              \q_nil { } ##2 \ERROR \q__xparse \ERROR
+          }
+          {
+            \__kernel_msg_expandable_error:nnff
+              { xparse } { missing-required }
+              { \exp_args:Nf \tl_trim_spaces:n { \token_to_str:N ##5 } }
+              { \tl_to_str:n {##2} }
+            ##4 {#1} \q__xparse ##5 ##6 {##7}
+          }
+      }
+  }
+\exp_args:No \__xparse_tmp:w { \c_novalue_tl }
+\cs_new:Npn \__xparse_expandable_grab_R_alt:w #1 \q__xparse #2#3
+  { #2 { \__xparse_expandable_grab_R_alt_aux:NNwNNn #1 \q__xparse #2#3 } }
+\cs_set_protected:Npn \__xparse_tmp:w #1
+  {
+    \cs_new:Npn \__xparse_expandable_grab_R_alt_aux:NNwNNn ##1##2##3 \q__xparse ##4##5##6
+      {
+        \str_if_eq:nnTF {##6} {##2}
+          {
+            \str_if_eq:onTF
+              { ##1 { } ##6 ##2 ##2 }
+              { { } ##2 }
+          }
+          { \use_ii:nn }
+          {
+            ##1
+              { \__xparse_expandable_grab_D_alt:NNwn ##4 ##5 ##3 \q__xparse }
+              ##6 \ERROR
+          }
+          {
+            \__kernel_msg_expandable_error:nnff
+              { xparse } { missing-required }
+              { \exp_args:Nf \tl_trim_spaces:n { \token_to_str:N ##4 } }
+              { \tl_to_str:n {##2} }
+            ##3 {#1} \q__xparse ##4 ##5 {##6}
+          }
+      }
+  }
+\exp_args:No \__xparse_tmp:w { \c_novalue_tl }
+\cs_new:Npn \__xparse_expandable_grab_t:w #1 \q__xparse #2#3
+  { #2 { \__xparse_expandable_grab_t_aux:NNwn #1 \q__xparse #2 #3 } }
+\cs_new:Npn \__xparse_expandable_grab_t_aux:NNwn #1#2#3 \q__xparse #4#5#6
+  {
+    \str_if_eq:onTF { #1 { } #6 #2 } {#2}
+      { #3 { \BooleanTrue } \q__xparse #4 #5 }
+      { #3 { \BooleanFalse } \q__xparse #4 #5 {#6} }
+  }
+\cs_new_eq:NN \__xparse_expandable_grab_u:w \prg_do_nothing:
+\cs_new:Npn \__xparse_put_arg_expandable:nw #1#2 \q__xparse { #2 {#1} \q__xparse }
+\cs_generate_variant:Nn \__xparse_put_arg_expandable:nw { o }
+\cs_new_protected:Npn \__xparse_bool_reverse:N #1
+  {
+    \bool_if:NTF #1
+      { \tl_set:Nn \ProcessedArgument { \c_false_bool } }
+      { \tl_set:Nn \ProcessedArgument { \c_true_bool } }
+  }
+\seq_new:N \l__xparse_split_list_seq
+\tl_new:N \l__xparse_split_list_tl
+\cs_new_protected:Npn \__xparse_split_list:nn #1#2
+  {
+    \tl_if_single:nTF {#1}
+      {
+        \token_if_cs:NTF #1
+          { \__xparse_split_list_multi:nn {#1} {#2} }
+          { \__xparse_split_list_single:Nn #1 {#2} }
+      }
+      { \__xparse_split_list_multi:nn {#1} {#2} }
+  }
+\cs_new_protected:Npn \__xparse_split_list_multi:nn #1#2
+  {
+    \seq_set_split:Nnn \l__xparse_split_list_seq {#1} {#2}
+    \tl_clear:N \ProcessedArgument
+    \seq_map_inline:Nn \l__xparse_split_list_seq
+      { \tl_put_right:Nn \ProcessedArgument { {##1} } }
+  }
+\cs_generate_variant:Nn \__xparse_split_list_multi:nn { nV }
+\group_begin:
+\char_set_catcode_active:N \^^@
+\cs_new_protected:Npn \__xparse_split_list_single:Nn #1#2
+  {
+    \tl_set:Nn \l__xparse_split_list_tl {#2}
+    \group_begin:
+    \char_set_lccode:nn { `\^^@ } { `#1 }
+    \tex_lowercase:D
+      {
+        \group_end:
+        \tl_replace_all:Nnn \l__xparse_split_list_tl { ^^@ }
+      }   {#1}
+     \__xparse_split_list_multi:nV {#1} \l__xparse_split_list_tl
+   }
+\group_end:
+\cs_new_protected:Npn \__xparse_split_argument:nnn #1#2#3
+  {
+    \__xparse_split_list:nn {#2} {#3}
+    \exp_args:Nf \__xparse_split_argument_aux:nnnn
+      { \tl_count:N \ProcessedArgument }
+      {#1} {#2} {#3}
+  }
+\cs_new_protected:Npn \__xparse_split_argument_aux:nnnn #1#2#3#4
+  {
+    \int_compare:nNnF {#1} = { #2 + 1 }
+      {
+        \int_compare:nNnTF {#1} > { #2 + 1 }
+          {
+            \tl_set:Nx \ProcessedArgument
+              {
+                \exp_last_unbraced:NnNo
+                  \__xparse_split_argument_aux:n
+                  { #2 + 1 }
+                  \use_none_delimit_by_q_stop:w
+                  \ProcessedArgument
+                  \q_stop
+              }
+            \__kernel_msg_error:nnxxx { xparse } { split-excess-tokens }
+              { \tl_to_str:n {#3} } { \int_eval:n { #2 + 1 } }
+              { \tl_to_str:n {#4} }
+          }
+          {
+            \tl_put_right:Nx \ProcessedArgument
+              {
+                \prg_replicate:nn { #2 + 1 - (#1) }
+                  { { \exp_not:V \c_novalue_tl } }
+              }
+          }
+      }
+  }
+\cs_new:Npn \__xparse_split_argument_aux:n #1
+  { \prg_replicate:nn {#1} { \__xparse_split_argument_aux:wn } }
+\cs_new:Npn \__xparse_split_argument_aux:wn #1 \use_none_delimit_by_q_stop:w #2
+  {
+    \exp_not:n { {#2} }
+    #1
+    \use_none_delimit_by_q_stop:w
+  }
+\cs_new_protected:Npn \__xparse_trim_spaces:n #1
+  { \tl_set:Nx \ProcessedArgument { \tl_trim_spaces:n {#1} } }
+\cs_new_protected:Npn \__xparse_get_arg_spec_error:N #1
+  {
+    \bool_set_false:N \l__xparse_environment_bool
+    \tl_set:Nn \l__xparse_fn_tl {#1}
+    \__xparse_get_arg_spec_error_aux:n { \cs_if_exist:NTF #1 }
+  }
+\cs_new_protected:Npn \__xparse_get_arg_spec_error:n #1
+  {
+    \bool_set_true:N \l__xparse_environment_bool
+    \str_set:Nx \l__xparse_environment_str {#1}
+    \__xparse_get_arg_spec_error_aux:n
+      { \cs_if_exist:cTF { \l__xparse_environment_str } }
+  }
+\cs_new_protected:Npn \__xparse_get_arg_spec_error_aux:n #1
+  {
+    #1
+      {
+        \__kernel_msg_error:nnx { xparse } { non-xparse }
+          { \__xparse_environment_or_command: }
+      }
+      {
+        \__kernel_msg_error:nnx { xparse } { unknown }
+          { \__xparse_environment_or_command: }
+      }
+  }
+\cs_new_protected:Npn \__xparse_get_arg_spec:NTF #1#2#3
+  {
+    \__xparse_cmd_if_xparse:NTF #1
+      {
+        \tl_set:Nx \ArgumentSpecification { \tl_item:Nn #1 { 2 } }
+        #2
+      }
+      {#3}
+  }
+\cs_new_protected:Npn \__xparse_get_arg_spec:N #1
+  {
+    \__xparse_get_arg_spec:NTF #1 { }
+      { \__xparse_get_arg_spec_error:N #1 }
+  }
+\cs_new_protected:Npn \__xparse_get_arg_spec:n #1
+  {
+    \exp_args:Nc \__xparse_get_arg_spec:NTF
+      { environment~ \tl_to_str:n {#1} }
+      { }
+      { \__xparse_get_arg_spec_error:n {#1} }
+  }
+\tl_new:N \ArgumentSpecification
+\cs_new_protected:Npn \__xparse_show_arg_spec:N #1
+  {
+    \__xparse_get_arg_spec:NTF #1
+      { \tl_show:N \ArgumentSpecification }
+      { \__xparse_get_arg_spec_error:N #1 }
+  }
+\cs_new_protected:Npn \__xparse_show_arg_spec:n #1
+  {
+    \exp_args:Nc \__xparse_get_arg_spec:NTF
+      { environment~ \tl_to_str:n {#1} }
+      { \tl_show:N \ArgumentSpecification }
+      { \__xparse_get_arg_spec_error:n {#1} }
+  }
+\cs_new_protected:Npn \__xparse_check_definable:nNT #1
+  { \tl_trim_spaces_apply:nN {#1} \__xparse_check_definable_aux:nN }
+\group_begin:
+  \char_set_catcode_active:n { `? }
+  \cs_new_protected:Npn \__xparse_check_definable_aux:nN #1#2
+    {
+      \group_begin:
+      \tl_if_single_token:nTF {#1}
+        {
+          \int_set:Nn \tex_escapechar:D { 92 }
+          \exp_args:Nx \tl_if_empty:nTF
+            { \exp_args:No \str_tail:n { \token_to_str:N #1 } }
+            {
+              \exp_args:Nx \char_set_lccode:nn
+                { ` \str_head:n {#1} } { `? }
+              \tex_lowercase:D { \tl_if_eq:nnTF {#1} } { ? }
+                { \group_end: \use_iii:nnn }
+                { \group_end: \use_i:nnn }
+            }
+            { \group_end: \use_iii:nnn }
+        }
+        { \group_end: \use_ii:nnn }
+      {
+        \__kernel_msg_error:nnxx { xparse } { not-definable }
+          { \tl_to_str:n {#1} } { \token_to_str:N #2 }
+      }
+      {
+        \__kernel_msg_error:nnxx { xparse } { not-one-token }
+          { \tl_to_str:n {#1} } { \token_to_str:N #2 }
+      }
+    }
+\group_end:
+\cs_new_protected:Npn \__xparse_token_if_cs:NTF #1
+  {
+    \group_begin:
+      \int_set:Nn \tex_escapechar:D { 92 }
+      \exp_args:Nx \tl_if_empty:nTF
+          { \exp_args:No \str_tail:n { \token_to_str:N #1 } }
+        { \group_end: \use_ii:nn }
+        { \group_end: \use_i:nn }
+  }
+\cs_new:Npn \__xparse_tl_mapthread_function:NNN #1#2#3
+  {
+    \exp_after:wN \exp_after:wN
+    \exp_after:wN \__xparse_tl_mapthread_loop:w
+    \exp_after:wN \exp_after:wN
+    \exp_after:wN #3
+    \exp_after:wN #1
+    \exp_after:wN \q_recursion_tail
+    \exp_after:wN \q_mark
+    #2
+    \q_recursion_tail
+    \q_recursion_stop
+  }
+\cs_new:Npn \__xparse_tl_mapthread_function:nnN #1#2#3
+  {
+    \__xparse_tl_mapthread_loop:w #3
+      #1 \q_recursion_tail \q_mark
+      #2 \q_recursion_tail \q_recursion_stop
+  }
+\cs_new:Npn \__xparse_tl_mapthread_loop:w #1#2#3 \q_mark #4
+  {
+    \quark_if_recursion_tail_stop:n {#2}
+    \quark_if_recursion_tail_stop:n {#4}
+    #1 {#2} {#4}
+    \__xparse_tl_mapthread_loop:w #1#3 \q_mark
+  }
+\cs_new_protected:Npn \__xparse_cmd_if_xparse:NTF #1
+  {
+    \exp_args:Nf \str_case_e:nnTF
+      {
+        \exp_args:Nf \tl_if_empty:nT { \cs_argument_spec:N #1 }
+          {
+            \exp_last_unbraced:Nf \__xparse_cmd_if_xparse_aux:w
+              { \cs_replacement_spec:N #1 } ~ \q_stop
+          }
+      }
+      {
+        { \token_to_str:N \__xparse_start:nNNnnn } { }
+        { \token_to_str:N \__xparse_start_expandable:nNNNNn } { }
+        { \token_to_str:N \__xparse_start_env:nnnnn } { }
+      }
+  }
+\cs_new:Npn \__xparse_cmd_if_xparse_aux:w #1 ~ #2 \q_stop {#1}
+\cs_new_protected:Npn \__xparse_peek_nonspace:NTF
+  { \__xparse_peek_nonspace_aux:nNNTF { } \__xparse_peek_meaning:NTF }
+\cs_new_protected:Npn \__xparse_peek_nonspace_remove:NTF
+  { \__xparse_peek_nonspace_aux:nNNTF { } \__xparse_peek_meaning_remove:NTF }
+\cs_new_protected:Npn \__xparse_peek_nonspace_aux:nNNTF #1#2#3#4#5
+  {
+    \peek_meaning_remove:NTF \c_space_token
+      { \__xparse_peek_nonspace_aux:nNNTF { #1 ~ } #2 #3 {#4} {#5} }
+      { #2 #3 { #4 } { #5 #1 } }
+  }
+\cs_new_protected:Npn \__xparse_peek_meaning:NTF
+  { \__xparse_peek_meaning_aux:NNTF \c_false_bool }
+\cs_new_protected:Npn \__xparse_peek_meaning_remove:NTF
+  { \__xparse_peek_meaning_aux:NNTF \c_true_bool }
+\cs_new_protected:Npn \__xparse_peek_meaning_aux:NNTF #1#2#3#4
+  {
+    \tl_set:Nn \l__xparse_tmpa_tl {#3}
+    \tl_set:Nn \l__xparse_tmpb_tl {#4}
+    \peek_meaning:NTF #2
+      {
+        \token_if_eq_meaning:NNTF #2 \c_group_begin_token
+          { \__xparse_peek_true_remove:Nw #1 }
+          {
+            \__xparse_token_if_cs:NTF #2
+              { \__xparse_peek_cs_check_equal:NNN #1 #2 }
+              { \__xparse_peek_true_remove:Nw #1 }
+          }
+      }
+      { \l__xparse_tmpb_tl }
+  }
+\cs_new_protected:Npn \__xparse_peek_cs_check_equal:NNN #1#2#3
+  {
+    \str_if_eq:nnTF {#2} {#3}
+      { \__xparse_peek_true_remove:Nw #1 }
+      { \l__xparse_tmpb_tl }
+    #3
+  }
+\cs_new_protected:Npn \__xparse_peek_true_remove:Nw #1
+  {
+    \bool_if:NTF #1
+      {
+        \tex_afterassignment:D \l__xparse_tmpa_tl
+        \cs_set_eq:NN \__xparse_tmp:w
+      }
+      { \l__xparse_tmpa_tl }
+  }
+\cs_new:Npn \__xparse_environment_or_command:
+  {
+    \bool_if:NTF \l__xparse_environment_bool
+      { environment ~ ' \l__xparse_environment_str ' }
+      {
+        command ~ '
+        \exp_args:Nf \tl_trim_spaces:n
+          { \exp_after:wN \token_to_str:N \l__xparse_fn_tl }
+        '
+      }
+  }
+\tl_const:Nn \c__xparse_ignore_def_tl
+  { \\ \\ LaTeX~will~ignore~this~entire~definition. }
+\__kernel_msg_new:nnnn { xparse } { arg-after-body }
+  { In~the~definition~of~#1,~b~(body)~argument~must~be~last. }
+  {
+    The~'body'~argument~type~is~followed~by~'#2'~in~the~argument~
+    specification~of~the~#1.~This~is~not~allowed.
+    \c__xparse_ignore_def_tl
+  }
+\__kernel_msg_new:nnnn { xparse } { bad-arg-spec }
+  { Bad~argument~specification~'#2'~for~#1. }
+  {
+    The~argument~specification~provided~was~not~valid:~
+    one~or~more~mandatory~pieces~of~information~were~missing.
+    \c__xparse_ignore_def_tl
+  }
+\__kernel_msg_new:nnnn { xparse } { command-already-defined }
+  { Command~'#1'~already~defined! }
+  {
+    You~have~used~#2~
+    with~a~command~that~already~has~a~definition. \\ \\
+    The~existing~definition~of~'#1'~will~not~be~altered.
+  }
+\__kernel_msg_new:nnnn { xparse } { command-not-yet-defined }
+  { Command ~'#1'~not~yet~defined! }
+  {
+    You~have~used~#2~
+    with~a~command~that~was~never~defined.
+    \c__xparse_ignore_def_tl
+  }
+\__kernel_msg_new:nnnn { xparse } { environment-already-defined }
+  { Environment~'#1'~already~defined! }
+  {
+    You~have~used~\NewDocumentEnvironment
+    with~an~environment~that~already~has~a~definition. \\ \\
+    The~existing~definition~of~'#1'~will~not~be~altered.
+  }
+\__kernel_msg_new:nnnn { xparse } { environment-not-yet-defined }
+  { Environment~'#1'~not~yet~defined! }
+  {
+    You~have~used~\RenewDocumentEnvironment
+    with~an~environment~that~was~never~defined.
+    \c__xparse_ignore_def_tl
+  }
+\__kernel_msg_new:nnnn { xparse } { expandable-ending-optional }
+  {
+    Argument~specification~'#2'~for~expandable~command~'#1'~
+    ends~with~optional~argument.
+  }
+  {
+    Expandable~commands~must~have~a~final~mandatory~argument~
+    (or~no~arguments~at~all).~You~cannot~have~a~terminal~optional~
+    argument~with~expandable~commands.
+  }
+\__kernel_msg_new:nnnn { xparse } { inconsistent-long }
+  { Inconsistent~long~arguments~for~expandable~command~'#1'. }
+  {
+    The~arguments~for~an~expandable~command~must~not~involve~short~
+    arguments~after~long~arguments.~You~have~tried~to~mix~the~two~types.
+  }
+\__kernel_msg_new:nnnn { xparse } { invalid-command-arg }
+  { Argument~type~'#2'~not~available~for~#1. }
+  {
+    The~letter~'#2'~can~only~be~used~in~environment~argument~
+    specifications,~not~for~commands.
+    \\ \\
+    LaTeX~will~ignore~this~entire~definition.
+  }
+\__kernel_msg_new:nnnn { xparse } { invalid-expandable-argument-type }
+  { Argument~type~'#2'~not~available~for~expandable~command~'#1'. }
+  {
+    The~letter~'#2'~specifies~an~argument~type~which~cannot~be~used~
+    in~an~expandable~command.
+    \c__xparse_ignore_def_tl
+  }
+\__kernel_msg_new:nnnn { xparse } { invalid-after-optional-expandably }
+  {
+    Argument~type~'#2'~not~available~after~optional~argument~
+    for~expandable~command~'#1'.
+  }
+  {
+    The~letter~'#2'~specifies~an~argument~type~which~cannot~be~used~
+    in~an~expandable~command~after~an~optional~argument.
+    \c__xparse_ignore_def_tl
+  }
+\__kernel_msg_new:nnnn { xparse } { non-trailing-obey-spaces }
+  { Prefix~'!'~used~before~mandatory~argument~'#2'~of~#1. }
+  {
+    The~prefix~'!'~can~only~apply~to~trailing~optional~arguments.
+    \c__xparse_ignore_def_tl
+  }
+\__kernel_msg_new:nnnn { xparse } { not-definable }
+  { First~argument~of~'#2'~must~be~a~command. }
+  {
+    The~first~argument~of~'#2'~should~be~the~document~command~that~will~
+    be~defined.~The~provided~argument~'#1'~is~a~character.~Perhaps~a~
+    backslash~is~missing?
+    \c__xparse_ignore_def_tl
+  }
+\__kernel_msg_new:nnnn { xparse } { not-one-token }
+  { First~argument~of~'#2'~must~be~a~command. }
+  {
+    The~first~argument~of~'#2'~should~be~the~document~command~that~will~
+    be~defined.~The~provided~argument~'#1'~contains~more~than~one~
+    token.~Perhaps~a~backslash~is~missing?
+    \c__xparse_ignore_def_tl
+  }
+\__kernel_msg_new:nnnn { xparse } { not-single-token }
+  {
+    Argument~delimiter~'#2'~for~the~#1~should~be~
+    a~single~non-space~token.
+  }
+  {
+    The~argument~specification~provided~was~not~valid:~in~a~place~
+    where~a~single~token~is~required,~LaTeX~found~'#2'.
+    \c__xparse_ignore_def_tl
+  }
+\__kernel_msg_new:nnnn { xparse } { forbidden-implicit-group-token }
+  { Argument~delimiter~'#2'~for~the~#1~is~not~allowed. }
+  {
+    The~argument~specification~provided~was~not~valid:~the~implicit~
+    #3-group~token~'#2'~is~not~allowed~as~an~argument~delimiter.
+    \c__xparse_ignore_def_tl
+  }
+\__kernel_msg_new:nnnn { xparse } { processor-in-expandable }
+  { Argument~processor~'>{#2}'~cannot~be~used~for~the~expandable~command~'#1'. }
+  {
+    The~argument~specification~for~#1~contains~a~processor~function:~
+    this~is~only~supported~for~standard~robust~commands.
+    \c__xparse_ignore_def_tl
+  }
+\__kernel_msg_new:nnnn { xparse } { too-many-arguments }
+  { Too~many~arguments~in~argument~specification~'#2'~of~#1. }
+  {
+    The~argument~specification~provided~has~more~than~9~arguments.~
+    This~cannot~be~implemented.
+    \c__xparse_ignore_def_tl
+  }
+\__kernel_msg_new:nnnn { xparse } { two-markers }
+  { Two~'#2'~apply~to~the~same~argument~in~argument~specification~of~#1. }
+  {
+    The~argument~specification~provided~has~two~markers~'#2'~applying~
+    to~the~same~argument;~these~are~redundant.
+  }
+\__kernel_msg_new:nnnn { xparse } { unknown-argument-type }
+  { Unknown~argument~type~'#2'~for~the~#1. }
+  {
+    The~letter~'#2'~does~not~specify~a~known~argument~type.
+    \c__xparse_ignore_def_tl
+  }
+\__kernel_msg_new:nnnn { xparse } { xparse-argument-type }
+  { Deprecated~argument~type~'#2'~for~the~#1~requires~xparse. }
+  {
+    The~letter~'#2'~specifies~a~known~argument~type~that~requires~
+    the~xparse~package.
+    \c__xparse_ignore_def_tl
+  }
+\__kernel_msg_new:nnn { xparse } { if-boolean }
+  { Invalid~use~\iow_char:N\\IfBooleanTF~{#1} }
+\__kernel_msg_new:nnnn { xparse } { loop-in-defaults }
+  { Defaults~of~#1~have~circular~dependency. }
+  {
+    The~default~values~of~two~or~more~arguments~of~the~#1~
+    depend~on~each~other~in~a~way~that~cannot~be~resolved.
+  }
+\__kernel_msg_new:nnnn { xparse } { missing-required }
+  { Missing~required~argument~for~#1. }
+  {
+    The~current~#1~expects~an~argument~starting~with~'#2'.~
+    LaTeX~did~not~find~it,~and~will~insert~a~default~value~to~be~processed.
+  }
+\__kernel_msg_new:nnnn { xparse } { non-xparse }
+  { \str_uppercase:n #1~not~defined~using~xparse. }
+  {
+    You~have~asked~for~the~argument~specification~for~the~#1,~
+    but~this~was~not~defined~using~xparse.
+  }
+\__kernel_msg_new:nnnn { xparse } { split-excess-tokens }
+  { Too~many~'#1'~tokens~when~trying~to~split~argument. }
+  {
+    LaTeX~was~asked~to~split~the~input~'#3'~
+    at~each~occurrence~of~the~token~'#1',~up~to~a~maximum~of~#2~parts.~
+    There~were~too~many~'#1'~tokens.
+  }
+\__kernel_msg_new:nnnn { xparse } { unknown }
+  { Unknown~document~#1. }
+  {
+    You~have~asked~for~the~argument~specification~for~the~#1,~
+    but~it~is~not~defined.
+  }
+\__kernel_msg_new:nnnn { xparse } { verbatim-newline }
+  { Verbatim~argument~of~#1~ended~by~end~of~line. }
+  {
+    The~verbatim~argument~of~the~#1~cannot~contain~more~than~one~line,~
+    but~the~end~
+    of~the~current~line~has~been~reached.~You~may~have~forgotten~the~
+    closing~delimiter.
+    \\ \\
+    LaTeX~will~ignore~'#2'.
+  }
+\__kernel_msg_new:nnnn { xparse } { verbatim-tokenized }
+  { The~verbatim~#1~cannot~be~used~inside~an~argument. }
+  {
+    The~#1~takes~a~verbatim~argument.~
+    It~may~not~appear~within~the~argument~of~another~function.~
+    It~received~an~illegal~token \tl_if_empty:nF {#3} { ~'#3' } .
+    \\ \\
+    LaTeX~will~ignore~'#2'.
+  }
+\__kernel_msg_new:nnn { xparse } { define-command }
+  {
+    Defining~command~#1~
+    with~sig.~'#2'~\msg_line_context:.
+  }
+\__kernel_msg_new:nnn { xparse } { define-environment }
+  {
+    Defining~environment~'#1'~
+    with~sig.~'#2'~\msg_line_context:.
+  }
+\__kernel_msg_new:nnn { xparse } { redefine-command }
+  {
+    Redefining~command~#1~
+    with~sig.~'#2'~\msg_line_context:.
+  }
+\__kernel_msg_new:nnn { xparse } { redefine-environment }
+  {
+    Redefining~environment~'#1'~
+    with~sig.~'#2'~\msg_line_context:.
+  }
+\__kernel_msg_new:nnn { xparse } { optional-mandatory }
+  {
+    Since~the~mandatory~argument~'#1'~has~the~same~delimiter~'#2'~
+    as~a~previous~optional~argument,~it~will~not~be~possible~to~
+    omit~all~optional~arguments~when~calling~this~command.
+  }
+\__kernel_msg_new:nnn { xparse } { unsupported-let }
+  {
+    The~command~'#1'~was~undefined~but~not~the~associated~commands~
+    '#1~code'~and/or~'#1~defaults'.~Maybe~you~tried~using~
+    \iow_char:N\\let.~This~may~lead~to~an~infinite~loop.
+  }
+\cs_new_eq:NN \BooleanFalse \c_false_bool
+\cs_new_eq:NN \BooleanTrue  \c_true_bool
+\cs_new_protected:Npn \NewDocumentCommand #1#2#3
+  {
+    \__xparse_check_definable:nNT {#1} \NewDocumentCommand
+      {
+        \cs_if_exist:NTF #1
+          {
+            \__kernel_msg_error:nnxx { xparse } { command-already-defined }
+              { \use:nnn \token_to_str:N #1 { } }
+              { \token_to_str:N \NewDocumentCommand }
+          }
+          { \__xparse_declare_cmd:Nnn #1 {#2} {#3} }
+      }
+  }
+\cs_new_protected:Npn \RenewDocumentCommand #1#2#3
+  {
+    \__xparse_check_definable:nNT {#1} \RenewDocumentCommand
+      {
+        \cs_if_exist:NTF #1
+          { \__xparse_declare_cmd:Nnn #1 {#2} {#3} }
+          {
+            \__kernel_msg_error:nnxx { xparse } { command-not-yet-defined }
+              { \use:nnn \token_to_str:N #1 { } }
+              { \token_to_str:N \RenewDocumentCommand }
+          }
+      }
+  }
+\cs_new_protected:Npn \ProvideDocumentCommand #1#2#3
+  {
+    \__xparse_check_definable:nNT {#1} \ProvideDocumentCommand
+      { \cs_if_exist:NF #1 { \__xparse_declare_cmd:Nnn #1 {#2} {#3} } }
+ }
+\cs_new_protected:Npn \DeclareDocumentCommand #1#2#3
+  {
+    \__xparse_check_definable:nNT {#1} \DeclareDocumentCommand
+      { \__xparse_declare_cmd:Nnn #1 {#2} {#3} }
+  }
+\cs_new_protected:Npn \NewDocumentEnvironment #1#2#3#4
+  {
+    \cs_if_exist:cTF {#1}
+      { \__kernel_msg_error:nnx { xparse } { environment-already-defined } {#1} }
+      { \__xparse_declare_env:nnnn {#1} {#2} {#3} {#4} }
+  }
+\cs_new_protected:Npn \RenewDocumentEnvironment #1#2#3#4
+  {
+    \cs_if_exist:cTF {#1}
+      { \__xparse_declare_env:nnnn {#1} {#2} {#3} {#4} }
+      { \__kernel_msg_error:nnx { xparse } { environment-not-yet-defined } {#1} }
+  }
+\cs_new_protected:Npn \ProvideDocumentEnvironment #1#2#3#4
+  { \cs_if_exist:cF {#1} { \__xparse_declare_env:nnnn {#1} {#2} {#3} {#4} } }
+\cs_new_protected:Npn \DeclareDocumentEnvironment #1#2#3#4
+  { \__xparse_declare_env:nnnn {#1} {#2} {#3} {#4} }
+\cs_new_protected:Npn \NewExpandableDocumentCommand #1#2#3
+  {
+    \__xparse_check_definable:nNT {#1} \NewExpandableDocumentCommand
+      {
+        \cs_if_exist:NTF #1
+          {
+            \__kernel_msg_error:nnxx { xparse } { command-already-defined }
+              { \use:nnn \token_to_str:N #1 { } }
+              { \token_to_str:N \NewExpandableDocumentCommand }
+          }
+          { \__xparse_declare_expandable_cmd:Nnn #1 {#2} {#3} }
+      }
+  }
+\cs_new_protected:Npn \RenewExpandableDocumentCommand #1#2#3
+  {
+    \__xparse_check_definable:nNT {#1} \RenewExpandableDocumentCommand
+      {
+        \cs_if_exist:NTF #1
+          { \__xparse_declare_expandable_cmd:Nnn #1 {#2} {#3} }
+          {
+            \__kernel_msg_error:nnxx { xparse } { command-not-yet-defined }
+              { \use:nnn \token_to_str:N #1 { } }
+              { \token_to_str:N \RenewExpandableDocumentCommand }
+          }
+      }
+  }
+\cs_new_protected:Npn \ProvideExpandableDocumentCommand #1#2#3
+  {
+    \__xparse_check_definable:nNT {#1} \ProvideExpandableDocumentCommand
+      {
+        \cs_if_exist:NF #1
+          { \__xparse_declare_expandable_cmd:Nnn #1 {#2} {#3} }
+      }
+ }
+\cs_new_protected:Npn \DeclareExpandableDocumentCommand #1#2#3
+  {
+    \__xparse_check_definable:nNT {#1} \DeclareExpandableDocumentCommand
+      { \__xparse_declare_expandable_cmd:Nnn #1 {#2} {#3} }
+  }
+\cs_new:Npn \IfBooleanTF #1
+  {
+    \tl_if_single:nF {#1}
+      { \prg_break:n { \use:n } }
+    \tl_if_single_token:nF #1
+      { \prg_break:n { \use:n } }
+    \token_if_eq_meaning:NNT #1 \c_true_bool
+      { \prg_break:n { \use_ii:nnn } }
+    \token_if_eq_meaning:NNT #1 \c_false_bool
+      { \prg_break:n { \use_iii:nnn } }
+    \prg_break:n { \use:n }
+    \prg_break_point:
+    {
+      \__kernel_msg_expandable_error:nnn { xparse } { if-boolean } {#1}
+      \use_ii:nn
+    }
+  }
+\cs_new:Npn \IfBooleanT #1#2 { \IfBooleanTF {#1} {#2} { } }
+\cs_new:Npn \IfBooleanF #1 { \IfBooleanTF {#1} { } }
+\cs_new_eq:NN \IfNoValueF  \tl_if_novalue:nF
+\cs_new_eq:NN \IfNoValueT  \tl_if_novalue:nT
+\cs_new_eq:NN \IfNoValueTF \tl_if_novalue:nTF
+\cs_new:Npn \IfValueF { \tl_if_novalue:nT }
+\cs_new:Npn \IfValueT { \tl_if_novalue:nF }
+\cs_new:Npn \IfValueTF #1#2#3 { \tl_if_novalue:nTF {#1} {#3} {#2} }
+\tl_new:N \ProcessedArgument
+\cs_new_eq:NN \ReverseBoolean \__xparse_bool_reverse:N
+\cs_new_eq:NN \SplitArgument  \__xparse_split_argument:nnn
+\cs_new_eq:NN \SplitList      \__xparse_split_list:nn
+\cs_new_eq:NN \TrimSpaces     \__xparse_trim_spaces:n
+\cs_new_eq:NN \ProcessList \tl_map_function:nN
+\cs_new_protected:Npn \GetDocumentCommandArgSpec #1
+  {
+    \__xparse_check_definable:nNT {#1} \GetDocumentCommandArgSpec
+      { \__xparse_get_arg_spec:N #1 }
+  }
+\cs_new_eq:NN \GetDocumentEnvironmentArgSpec \__xparse_get_arg_spec:n
+\cs_new_protected:Npn \ShowDocumentCommandArgSpec #1
+  {
+    \__xparse_check_definable:nNT {#1} \ShowDocumentCommandArgSpec
+      { \__xparse_show_arg_spec:N #1 }
+  }
+\cs_new_eq:NN \ShowDocumentEnvironmentArgSpec \__xparse_show_arg_spec:n
+\__xparse_file_end_hook:
+%% 
+%%
+%% End of file `xparse-generic.tex'.


Property changes on: trunk/Master/texmf-dist/tex/latex/l3packages/xparse/xparse-generic.tex
___________________________________________________________________
Added: svn:eol-style
## -0,0 +1 ##
+native
\ No newline at end of property
Modified: trunk/Master/texmf-dist/tex/latex/l3packages/xparse/xparse.ltx
===================================================================
--- trunk/Master/texmf-dist/tex/latex/l3packages/xparse/xparse.ltx	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/tex/latex/l3packages/xparse/xparse.ltx	2020-05-14 21:16:02 UTC (rev 55142)
@@ -23,6 +23,7 @@
   \message{xparse <2020-03-03>}%
 }
 \ExplSyntaxOn
+\file_input:n { xparse-generic.tex }
 \tl_new:N \l__xparse_arg_spec_tl
 \tl_new:N \l__xparse_args_tl
 \tl_new:N \l__xparse_args_i_tl
@@ -190,7 +191,6 @@
     \str_set:Nx \l__xparse_environment_str {#1}
     \str_set:Nx \l__xparse_environment_str
       { \tl_trim_spaces:o { \l__xparse_environment_str } }
-    \cs_if_exist:cTF { \l__xparse_environment_str }
       {
         \__kernel_msg_info:nnxx { xparse } { redefine-environment }
           { \l__xparse_environment_str } { \tl_to_str:n {#2} }
@@ -221,13 +221,10 @@
         \cs_generate_from_arg_count:cNnn
           { environment~ #1 ~end~aux~ } \cs_set:Npn
           \l__xparse_current_arg_int {#4}
-        \cs_set_eq:cc {#1}       { environment~ #1 }
-        \cs_set_eq:cc { end #1 } { environment~ #1 ~end }
       }
   }
 \cs_new_protected:Npn \__xparse_start_env:nnnnn #1#2
   {
-    \cs_if_exist_use:N \conditionally at traceoff
     \str_set:Nn \l__xparse_environment_str {#2}
     \bool_set_true:N \l__xparse_environment_bool
     \__xparse_start_aux:ccnnnn
@@ -237,7 +234,6 @@
   }
 \cs_new_protected:Npx \__xparse_start:nNNnnn #1#2#3
   {
-    \exp_not:n { \cs_if_exist_use:N \conditionally at traceoff }
     \exp_not:c { xparse~function~is~not~expandable }
     \exp_not:n { \bool_set_false:N \l__xparse_environment_bool }
     \exp_not:N \__xparse_start_aux:NNnnnn
@@ -257,7 +253,6 @@
   {
     \tl_if_empty:NF \l__xparse_defaults_tl { \__xparse_defaults: }
     \tl_if_empty:NF \l__xparse_process_all_tl { \__xparse_args_process: }
-    \cs_if_exist_use:N \conditionally at traceon
     \exp_after:wN \l__xparse_fn_code_tl \l__xparse_args_tl
   }
 \cs_new_protected:Npn \__xparse_defaults:
@@ -416,8 +411,21 @@
     \int_incr:N \l__xparse_current_arg_int
     \cs_if_exist_use:cF { __xparse_normalize_type_ \tl_to_str:n {#1} :w }
       {
-        \__kernel_msg_error:nnxx { xparse } { unknown-argument-type }
-          { \__xparse_environment_or_command: } { \tl_to_str:n {#1} }
+        \bool_lazy_any:nTF
+          {
+            { \str_if_eq_p:nn {#1} { G } }
+            { \str_if_eq_p:nn {#1} { g } }
+            { \str_if_eq_p:nn {#1} { l } }
+            { \str_if_eq_p:nn {#1} { u } }
+          }
+          {
+            \__kernel_msg_error:nnxx { xparse } { xparse-argument-type }
+              { \__xparse_environment_or_command: } { \tl_to_str:n {#1} }
+          }
+          {
+            \__kernel_msg_error:nnxx { xparse } { unknown-argument-type }
+              { \__xparse_environment_or_command: } { \tl_to_str:n {#1} }
+          }
         \__xparse_bad_def:wn
       }
   }
@@ -433,8 +441,6 @@
         \quark_if_recursion_tail_stop_do:nn {##1} { \__xparse_bad_arg_spec:wn }
         \__xparse_normalize_type_E:w {##1} { }
       }
-    \cs_new_protected:Npn \__xparse_normalize_type_g:w
-      { \__xparse_normalize_type_G:w {#1} }
     \cs_new_protected:Npn \__xparse_normalize_type_o:w
       { \__xparse_normalize_type_D:w [ ] {#1} }
     \cs_new_protected:Npn \__xparse_normalize_type_O:w
@@ -522,14 +528,6 @@
         \__xparse_normalize_E_unique_check:w #2 \q_stop
       }
   }
-\cs_new_protected:Npn \__xparse_normalize_type_G:w #1
-  {
-    \quark_if_recursion_tail_stop_do:nn {#1} { \__xparse_bad_arg_spec:wn }
-    \__xparse_normalize_check_gv:N G
-    \__xparse_add_arg_spec:n { G {#1} }
-    \tl_put_right:Nn \l__xparse_last_delimiters_tl { { } }
-    \__xparse_normalize_arg_spec_loop:n
-  }
 \cs_new_protected:Npn \__xparse_normalize_type_t:w #1
   {
     \quark_if_recursion_tail_stop_do:Nn #1 { \__xparse_bad_arg_spec:wn }
@@ -545,12 +543,6 @@
     \bool_set_false:N \l__xparse_long_bool
     \__xparse_normalize_arg_spec_loop:n
   }
-\cs_new_protected:Npn \__xparse_normalize_type_l:w
-  {
-    \__xparse_normalize_check_lu:N l
-    \__xparse_add_arg_spec_mandatory:n { l }
-    \__xparse_normalize_arg_spec_loop:n
-  }
 \cs_new_protected:Npn \__xparse_normalize_type_m:w
   {
     \__xparse_delimiter_check:nnn { } { m } { \iow_char:N \{ }
@@ -567,13 +559,6 @@
     \__xparse_add_arg_spec_mandatory:n { R #1 #2 {#3} }
     \__xparse_normalize_arg_spec_loop:n
   }
-\cs_new_protected:Npn \__xparse_normalize_type_u:w #1
-  {
-    \quark_if_recursion_tail_stop_do:nn {#1} { \__xparse_bad_arg_spec:wn }
-    \__xparse_normalize_check_lu:N u
-    \__xparse_add_arg_spec_mandatory:n { u {#1} }
-    \__xparse_normalize_arg_spec_loop:n
-  }
 \cs_new_protected:Npn \__xparse_normalize_type_v:w
   {
     \__xparse_normalize_check_gv:N v
@@ -779,20 +764,6 @@
     \tl_put_right:Nn \l__xparse_signature_tl { {#1} }
     \__xparse_prepare_signature:N
   }
-\cs_new_protected:Npn \__xparse_add_type_G:w #1
-  {
-    \__xparse_flush_m_args:
-    \__xparse_add_default:n {#1}
-    \__xparse_add_grabber:N G
-    \__xparse_prepare_signature:N
-  }
-\cs_new_protected:Npn \__xparse_add_type_l:w
-  {
-    \__xparse_flush_m_args:
-    \__xparse_add_default:
-    \__xparse_add_grabber:N l
-    \__xparse_prepare_signature:N
-  }
 \cs_new_protected:Npn \__xparse_add_type_m:w
   {
     \__xparse_add_default:
@@ -817,14 +788,6 @@
     \tl_put_right:Nn \l__xparse_signature_tl {#1}
     \__xparse_prepare_signature:N
   }
-\cs_new_protected:Npn \__xparse_add_type_u:w #1
-  {
-    \__xparse_flush_m_args:
-    \__xparse_add_default:
-    \__xparse_add_grabber:N u
-    \tl_put_right:Nn \l__xparse_signature_tl { {#1} }
-    \__xparse_prepare_signature:N
-  }
 \cs_new_protected:Npn \__xparse_add_type_v:w
   {
     \__xparse_flush_m_args:
@@ -946,8 +909,6 @@
     \tl_put_right:Nx \l__xparse_tmpb_tl
       { \exp_not:o \l__xparse_tmpa_tl \exp_not:N #1 }
   }
-\cs_new_protected:Npn \__xparse_add_expandable_type_l:w
-  { \__xparse_add_expandable_type_u:w ## }
 \cs_new_protected:Npn \__xparse_add_expandable_type_m:w
   {
     \__xparse_add_default:
@@ -968,18 +929,6 @@
       }
     \__xparse_prepare_signature:N
   }
-\cs_new_protected:Npn \__xparse_add_expandable_type_u:w #1
-  {
-    \__xparse_add_default:
-    \bool_if:NTF \l__xparse_long_bool
-      { \cs_set:cpn }
-      { \cs_set_nopar:cpn }
-      { \l__xparse_expandable_aux_name_tl } ##1 \q__xparse ##2 ##3 ##4 #1
-      { ##1 {##4} \q__xparse ##2 ##3 }
-    \__xparse_add_expandable_grabber:nn { u }
-      { \exp_not:c  { \l__xparse_expandable_aux_name_tl } }
-    \__xparse_prepare_signature:N
-  }
 \cs_new_protected:Npn \__xparse_add_expandable_grabber:nn #1#2
   {
     \tl_put_right:Nx \l__xparse_signature_tl
@@ -1201,46 +1150,6 @@
       }
   }
 \cs_new_protected:Npn \__xparse_grab_E_finalise: { }
-\cs_new_protected:Npn \__xparse_grab_G:w #1 \__xparse_run_code:
-  {
-    \__xparse_grab_G_aux:nNN {#1} \cs_set_protected_nopar:Npn
-      \__xparse_peek_nonspace:NTF
-  }
-\cs_new_protected:Npn \__xparse_grab_G_long:w #1 \__xparse_run_code:
-  {
-    \__xparse_grab_G_aux:nNN {#1} \cs_set_protected:Npn
-      \__xparse_peek_nonspace:NTF
-  }
-\cs_new_protected:Npn \__xparse_grab_G_obey_spaces:w #1 \__xparse_run_code:
-  {
-    \__xparse_grab_G_aux:nNN {#1} \cs_set_protected_nopar:Npn
-      \peek_meaning:NTF
-  }
-\cs_new_protected:Npn \__xparse_grab_G_long_obey_spaces:w #1 \__xparse_run_code:
-  {
-    \__xparse_grab_G_aux:nNN {#1} \cs_set_protected:Npn
-      \peek_meaning:NTF
-  }
-\cs_new_protected:Npn \__xparse_grab_G_aux:nNN #1#2#3
-  {
-    \tl_set:Nn \l__xparse_signature_tl {#1}
-    \exp_after:wN #2 \l__xparse_fn_tl ##1
-      { \__xparse_add_arg:n {##1} }
-    #3 \c_group_begin_token
-      { \l__xparse_fn_tl }
-      { \__xparse_add_arg:o \c_novalue_tl }
-  }
-\cs_new_protected:Npn \__xparse_grab_l:w #1 \__xparse_run_code:
-  { \__xparse_grab_l_aux:nN {#1} \cs_set_protected_nopar:Npn }
-\cs_new_protected:Npn \__xparse_grab_l_long:w #1 \__xparse_run_code:
-  { \__xparse_grab_l_aux:nN {#1} \cs_set_protected:Npn }
-\cs_new_protected:Npn \__xparse_grab_l_aux:nN #1#2
-  {
-    \tl_set:Nn \l__xparse_signature_tl {#1}
-    \exp_after:wN #2 \l__xparse_fn_tl ##1##
-      { \__xparse_add_arg:n {##1} }
-    \l__xparse_fn_tl
-  }
 \cs_new_protected:Npn \__xparse_grab_m:w #1 \__xparse_run_code:
   {
     \tl_set:Nn \l__xparse_signature_tl {#1}
@@ -1345,17 +1254,6 @@
       }
     \l__xparse_fn_tl
   }
-\cs_new_protected:Npn \__xparse_grab_u:w #1#2 \__xparse_run_code:
-  { \__xparse_grab_u_aux:nnN {#1} {#2} \cs_set_protected_nopar:Npn }
-\cs_new_protected:Npn \__xparse_grab_u_long:w #1#2 \__xparse_run_code:
-  { \__xparse_grab_u_aux:nnN {#1} {#2} \cs_set_protected:Npn }
-\cs_new_protected:Npn \__xparse_grab_u_aux:nnN #1#2#3
-  {
-    \tl_set:Nn \l__xparse_signature_tl {#2}
-    \exp_after:wN #3 \l__xparse_fn_tl ##1 #1
-      { \__xparse_add_arg:n {##1} }
-    \l__xparse_fn_tl
-  }
 \tl_new:N \l__xparse_v_arg_tl
 \cs_new_protected:Npn \__xparse_grab_v:w
   {
@@ -1468,8 +1366,6 @@
   }
 \cs_new_protected:Npn \__xparse_grab_v_aux_catcodes:
   {
-    \cs_set_eq:NN \do \char_set_catcode_other:N
-    \dospecials
     \tex_endlinechar:D = `\^^M \scan_stop:
     \bool_if:NTF \l__xparse_long_bool
       { \char_set_catcode_other:n { \tex_endlinechar:D } }
@@ -2143,6 +2039,13 @@
     The~letter~'#2'~does~not~specify~a~known~argument~type.
     \c__xparse_ignore_def_tl
   }
+\__kernel_msg_new:nnnn { xparse } { xparse-argument-type }
+  { Deprecated~argument~type~'#2'~for~the~#1~requires~xparse. }
+  {
+    The~letter~'#2'~specifies~a~known~argument~type~that~requires~
+    the~xparse~package.
+    \c__xparse_ignore_def_tl
+  }
 \__kernel_msg_new:nnn { xparse } { if-boolean }
   { Invalid~use~\iow_char:N\\IfBooleanTF~{#1} }
 \__kernel_msg_new:nnnn { xparse } { loop-in-defaults }

Modified: trunk/Master/texmf-dist/tex/latex/l3packages/xparse/xparse.sty
===================================================================
--- trunk/Master/texmf-dist/tex/latex/l3packages/xparse/xparse.sty	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/tex/latex/l3packages/xparse/xparse.sty	2020-05-14 21:16:02 UTC (rev 55142)
@@ -32,7 +32,7 @@
       }%
     \endinput
   }
-\ProvidesExplPackage{xparse}{2020-03-06}{}
+\ProvidesExplPackage{xparse}{2020-05-14}{}
   {L3 Experimental document command parser}
 \clist_new:N \l__xparse_options_clist
 \DeclareOption* { \clist_put_right:NV \l__xparse_options_clist \CurrentOption }
@@ -45,397 +45,9 @@
 \keys_set:nV { xparse } \l__xparse_options_clist
 \bool_if:NF \l__xparse_log_bool
   { \msg_redirect_module:nnn { LaTeX / xparse } { info } { none } }
-\cs_if_exist:NT \NewDocumentCommand
-  { \file_input_stop: }
-\tl_new:N \l__xparse_arg_spec_tl
-\tl_new:N \l__xparse_args_tl
-\tl_new:N \l__xparse_args_i_tl
-\tl_new:N \l__xparse_args_ii_tl
-\int_new:N \l__xparse_current_arg_int
-\bool_new:N \l__xparse_defaults_bool
-\tl_new:N \l__xparse_defaults_tl
-\bool_new:N \l__xparse_environment_bool
-\str_new:N \l__xparse_environment_str
-\bool_new:N \l__xparse_expandable_bool
-\tl_new:N \l__xparse_expandable_aux_name_tl
-\tl_set:Nn \l__xparse_expandable_aux_name_tl
+\file_input:n { xparse-generic.tex }
+\cs_gset_protected:Npn \__xparse_normalize_arg_spec_loop:n #1
   {
-    \l__xparse_function_tl \c_space_tl
-    ( arg~ \int_use:N \l__xparse_current_arg_int )
-  }
-\int_new:N \g__xparse_grabber_int
-\tl_new:N \l__xparse_fn_tl
-\tl_new:N \l__xparse_fn_code_tl
-\tl_new:N \l__xparse_function_tl
-\bool_new:N \l__xparse_grab_expandably_bool
-\bool_new:N \l__xparse_obey_spaces_bool
-\tl_new:N \l__xparse_last_delimiters_tl
-\bool_new:N \l__xparse_long_bool
-\int_new:N \l__xparse_m_args_int
-\bool_new:N \l__xparse_prefixed_bool
-\tl_new:N \l__xparse_process_all_tl
-\tl_new:N \l__xparse_process_one_tl
-\bool_new:N \l__xparse_process_some_bool
-\tl_new:N \l__xparse_saved_args_tl
-\tl_new:N \l__xparse_signature_tl
-\bool_new:N \l__xparse_some_obey_spaces_bool
-\bool_new:N \l__xparse_some_long_bool
-\bool_new:N \l__xparse_some_short_bool
-\prop_new:N \l__xparse_tmp_prop
-\tl_new:N \l__xparse_tmpa_tl
-\tl_new:N \l__xparse_tmpb_tl
-\cs_new_eq:NN \__xparse_tmp:w ?
-\cs_new_protected:Npn \__xparse_declare_cmd:Nnn
-  {
-    \bool_set_false:N \l__xparse_expandable_bool
-    \__xparse_declare_cmd_aux:Nnn
-  }
-\cs_new_protected:Npn \__xparse_declare_expandable_cmd:Nnn
-  {
-    \bool_set_true:N \l__xparse_expandable_bool
-    \__xparse_declare_cmd_aux:Nnn
-  }
-\cs_new_protected:Npn \__xparse_declare_cmd_aux:Nnn #1#2#3
-  {
-    \cs_if_exist:NTF #1
-      {
-        \__kernel_msg_info:nnxx { xparse } { redefine-command }
-          { \token_to_str:N #1 } { \tl_to_str:n {#2} }
-      }
-      {
-        \bool_lazy_or:nnT
-          { \cs_if_exist_p:c { \cs_to_str:N #1 ~ code } }
-          { \cs_if_exist_p:c { \cs_to_str:N #1 ~ defaults } }
-          {
-            \__kernel_msg_warning:nnx { xparse } { unsupported-let }
-              { \token_to_str:N #1 }
-          }
-        \__kernel_msg_info:nnxx { xparse } { define-command }
-          { \token_to_str:N #1 } { \tl_to_str:n {#2} }
-      }
-    \bool_set_false:N \l__xparse_environment_bool
-    \__xparse_declare_cmd_internal:Nnnn #1 {#2} {#3} { }
-  }
-\cs_new_protected:Npn \__xparse_declare_cmd_internal:Nnnn #1#2#3#4
-  {
-    \tl_set:Nx \l__xparse_function_tl { \cs_to_str:N #1 }
-    \tl_set:Nx \l__xparse_fn_tl
-      { \exp_not:c { \l__xparse_function_tl \c_space_tl } }
-    \__xparse_normalize_arg_spec:n {#2}
-    \exp_args:No \__xparse_prepare_signature:n \l__xparse_arg_spec_tl
-    \__xparse_declare_cmd_code:Nnn #1 {#2} {#3}
-    #4
-    \__xparse_break_point:n {#2}
-  }
-\cs_generate_variant:Nn \__xparse_declare_cmd_internal:Nnnn { cnx }
-\cs_new_eq:NN \__xparse_break_point:n \use_none:n
-\cs_new_protected:Npn \__xparse_declare_cmd_code:Nnn
-  {
-    \bool_if:NTF \l__xparse_grab_expandably_bool
-      { \__xparse_declare_cmd_code_expandable:Nnn }
-      { \__xparse_declare_cmd_code_aux:Nnn }
-   }
-\cs_new_protected:Npn \__xparse_declare_cmd_code_aux:Nnn #1#2#3
-  {
-    \cs_generate_from_arg_count:cNnn
-      { \l__xparse_function_tl \c_space_tl code }
-      \cs_set_protected:Npn \l__xparse_current_arg_int {#3}
-    \cs_set_protected_nopar:Npx #1
-      {
-        \bool_if:NTF \l__xparse_environment_bool
-          {
-            \__xparse_start_env:nnnnn { \exp_not:n {#2} }
-              { \l__xparse_environment_str }
-          }
-          {
-            \__xparse_start:nNNnnn { \exp_not:n {#2} }
-              \exp_not:c { \l__xparse_function_tl \c_space_tl }
-              \exp_not:c { \l__xparse_function_tl \c_space_tl code }
-          }
-          { \exp_not:o \l__xparse_signature_tl }
-          {
-            \bool_if:NT \l__xparse_defaults_bool
-              { \exp_not:o \l__xparse_defaults_tl }
-          }
-          {
-            \bool_if:NT \l__xparse_process_some_bool
-              { \exp_not:o \l__xparse_process_all_tl }
-          }
-      }
-  }
-\cs_new_protected:Npn \__xparse_declare_cmd_code_expandable:Nnn #1#2#3
-  {
-    \exp_args:Ncc \cs_generate_from_arg_count:NNnn
-      { \l__xparse_function_tl \c_space_tl code }
-      { cs_set \bool_if:NF \l__xparse_expandable_bool { _protected } :Npn }
-      \l__xparse_current_arg_int {#3}
-    \bool_if:NT \l__xparse_defaults_bool
-      {
-        \use:x
-          {
-            \cs_generate_from_arg_count:cNnn
-              { \l__xparse_function_tl \c_space_tl defaults }
-              \cs_set:Npn \l__xparse_current_arg_int
-              { \exp_not:o \l__xparse_defaults_tl }
-          }
-      }
-    \bool_if:NTF \l__xparse_expandable_bool
-      { \cs_set_nopar:Npx } { \cs_set_protected_nopar:Npx } #1
-      {
-        \exp_not:N \__xparse_start_expandable:nNNNNn
-          { \exp_not:n {#2} }
-          \exp_not:c { \l__xparse_function_tl \c_space_tl }
-          \exp_not:c
-            {
-              \l__xparse_function_tl \c_space_tl
-              \bool_if:NT \l__xparse_some_short_bool
-                { \bool_if:NT \l__xparse_some_long_bool { \c_space_tl } }
-            }
-          \exp_not:c { \l__xparse_function_tl \c_space_tl code }
-          \bool_if:NTF \l__xparse_defaults_bool
-            { \exp_not:c { \l__xparse_function_tl \c_space_tl defaults } }
-            { ? }
-          { \exp_not:o \l__xparse_signature_tl }
-      }
-    \bool_if:NTF \l__xparse_some_long_bool
-      {
-        \bool_if:NT \l__xparse_some_short_bool
-          {
-            \cs_set_nopar:cpx { \l__xparse_function_tl \c_space_tl \c_space_tl }
-              ##1##2 { ##1 {##2} }
-          }
-        \cs_set:cpx
-      }
-      { \cs_set_nopar:cpx }
-          { \l__xparse_function_tl \c_space_tl } ##1##2 { ##1 {##2} }
-  }
-\cs_new_protected:Npn \__xparse_declare_env:nnnn #1#2
-  {
-    \str_set:Nx \l__xparse_environment_str {#1}
-    \str_set:Nx \l__xparse_environment_str
-      { \tl_trim_spaces:o { \l__xparse_environment_str } }
-    \cs_if_exist:cTF { \l__xparse_environment_str }
-      {
-        \__kernel_msg_info:nnxx { xparse } { redefine-environment }
-          { \l__xparse_environment_str } { \tl_to_str:n {#2} }
-      }
-      {
-        \__kernel_msg_info:nnxx { xparse } { define-environment }
-          { \l__xparse_environment_str } { \tl_to_str:n {#2} }
-      }
-    \bool_set_false:N \l__xparse_expandable_bool
-    \bool_set_true:N \l__xparse_environment_bool
-    \exp_args:NV \__xparse_declare_env_internal:nnnn
-      \l__xparse_environment_str {#2}
-  }
-\cs_new_protected:Npn \__xparse_declare_env_internal:nnnn #1#2#3#4
-  {
-    \__xparse_declare_cmd_internal:cnxn { environment~ #1 } {#2}
-      {
-        \cs_set_nopar:Npx \exp_not:c { environment~ #1 ~end~aux }
-          {
-            \exp_not:N \exp_not:N \exp_not:c { environment~ #1~end~aux~ }
-            \exp_not:n { \exp_not:o \l__xparse_args_tl }
-          }
-        \exp_not:n {#3}
-      }
-      {
-        \cs_set_nopar:cpx { environment~ #1 ~end }
-          { \exp_not:c { environment~ #1 ~end~aux } }
-        \cs_generate_from_arg_count:cNnn
-          { environment~ #1 ~end~aux~ } \cs_set:Npn
-          \l__xparse_current_arg_int {#4}
-        \cs_set_eq:cc {#1}       { environment~ #1 }
-        \cs_set_eq:cc { end #1 } { environment~ #1 ~end }
-      }
-  }
-\cs_new_protected:Npn \__xparse_start_env:nnnnn #1#2
-  {
-    \cs_if_exist_use:N \conditionally at traceoff
-    \str_set:Nn \l__xparse_environment_str {#2}
-    \bool_set_true:N \l__xparse_environment_bool
-    \__xparse_start_aux:ccnnnn
-      { environment~ \l__xparse_environment_str \c_space_tl }
-      { environment~ \l__xparse_environment_str \c_space_tl code }
-      {#1}
-  }
-\cs_new_protected:Npx \__xparse_start:nNNnnn #1#2#3
-  {
-    \exp_not:n { \cs_if_exist_use:N \conditionally at traceoff }
-    \exp_not:c { xparse~function~is~not~expandable }
-    \exp_not:n { \bool_set_false:N \l__xparse_environment_bool }
-    \exp_not:N \__xparse_start_aux:NNnnnn
-    #2 #3 {#1}
-  }
-\cs_new_protected:Npn \__xparse_start_aux:NNnnnn #1#2#3#4#5#6
-  {
-    \tl_clear:N \l__xparse_args_tl
-    \tl_set:Nn \l__xparse_fn_tl {#1}
-    \tl_set:Nn \l__xparse_fn_code_tl {#2}
-    \tl_set:Nn \l__xparse_defaults_tl {#5}
-    \tl_set:Nn \l__xparse_process_all_tl {#6}
-    #4 \__xparse_run_code:
-  }
-\cs_generate_variant:Nn \__xparse_start_aux:NNnnnn { cc }
-\cs_new_protected:Npn \__xparse_run_code:
-  {
-    \tl_if_empty:NF \l__xparse_defaults_tl { \__xparse_defaults: }
-    \tl_if_empty:NF \l__xparse_process_all_tl { \__xparse_args_process: }
-    \cs_if_exist_use:N \conditionally at traceon
-    \exp_after:wN \l__xparse_fn_code_tl \l__xparse_args_tl
-  }
-\cs_new_protected:Npn \__xparse_defaults:
-  {
-    \__xparse_defaults_def:
-    \tl_set_eq:NN \l__xparse_args_i_tl \l__xparse_args_tl
-    \__xparse_defaults_aux: \__xparse_defaults_aux: \__xparse_defaults_aux:
-    \__xparse_defaults_aux: \__xparse_defaults_aux: \__xparse_defaults_aux:
-    \__xparse_defaults_aux: \__xparse_defaults_aux: \__xparse_defaults_aux:
-    \__xparse_defaults_error:w
-    \q_recursion_stop
-    \tl_set_eq:NN \l__xparse_args_tl \l__xparse_args_i_tl
-  }
-\cs_new_protected:Npn \__xparse_defaults_aux:
-  {
-    \tl_set:Nx \l__xparse_args_ii_tl
-      { \exp_after:wN \__xparse_tmp:w \l__xparse_args_i_tl }
-    \tl_if_eq:NNT \l__xparse_args_ii_tl \l__xparse_args_i_tl
-      { \use_none_delimit_by_q_recursion_stop:w }
-    \tl_set_eq:NN \l__xparse_args_i_tl \l__xparse_args_ii_tl
-  }
-\cs_new_protected:Npn \__xparse_defaults_error:w \q_recursion_stop
-  {
-    \__kernel_msg_error:nnx { xparse } { loop-in-defaults }
-      { \__xparse_environment_or_command: }
-  }
-\cs_new_protected:Npn \__xparse_defaults_def:
-  {
-    \tl_clear:N \l__xparse_tmpa_tl
-    \int_zero:N \l__xparse_current_arg_int
-    \__xparse_tl_mapthread_function:NNN \l__xparse_args_tl \l__xparse_defaults_tl
-      \__xparse_defaults_def:nn
-    \cs_generate_from_arg_count:NNVo \__xparse_tmp:w \cs_set:Npn
-      \l__xparse_current_arg_int \l__xparse_tmpa_tl
-  }
-\cs_generate_variant:Nn \cs_generate_from_arg_count:NNnn { NNVo }
-\cs_new_protected:Npn \__xparse_defaults_def:nn
-  {
-    \int_incr:N \l__xparse_current_arg_int
-    \exp_args:NV \__xparse_defaults_def:nnn \l__xparse_current_arg_int
-  }
-\cs_new_protected:Npn \__xparse_defaults_def:nnn #1#2#3
-  {
-    \tl_put_right:Nx \l__xparse_tmpa_tl
-      {
-        {
-          \exp_not:N \exp_not:n
-            {
-              \tl_if_novalue:nTF {#2}
-                { \exp_not:o {#3} }
-                { \exp_not:n { ## #1 } }
-            }
-        }
-      }
-  }
-\cs_new_protected:Npn \__xparse_args_process:
-  {
-    \tl_clear:N \l__xparse_args_ii_tl
-    \__xparse_tl_mapthread_function:NNN
-      \l__xparse_args_tl
-      \l__xparse_process_all_tl
-      \__xparse_args_process_loop:nn
-    \tl_set_eq:NN \l__xparse_args_tl \l__xparse_args_ii_tl
-  }
-\cs_new_protected:Npn \__xparse_args_process_loop:nn #1#2
-  {
-    \tl_set:Nn \ProcessedArgument {#1}
-    \tl_if_novalue:nF {#1}
-      { \tl_map_function:nN {#2} \__xparse_args_process_aux:n }
-    \tl_put_right:No \l__xparse_args_ii_tl
-      { \exp_after:wN { \ProcessedArgument } }
-  }
-\cs_new_protected:Npn \__xparse_args_process_aux:n #1
-  {
-    \cs_generate_from_arg_count:NNnn \__xparse_tmp:w \cs_set:Npn
-      { \tl_count:N \l__xparse_args_tl } {#1}
-    \exp_args:NNNo \exp_after:wN \__xparse_tmp:w \l__xparse_args_tl
-      { \ProcessedArgument }
-  }
-\cs_new:Npn \__xparse_start_expandable:nNNNNn #1#2#3#4#5#6
-  { #6 \__xparse_end_expandable:NNw #5 #4 \q__xparse #2#3 }
-\cs_new:Npn \__xparse_end_expandable:NNw #1#2
-  { \__xparse_end_expandable_aux:w #1#2 \prg_do_nothing: }
-\cs_new:Npn \__xparse_end_expandable_aux:w #1#2#3 \q__xparse
-  { \exp_args:No \__xparse_end_expandable_aux:nNNNN {#3} #1 #2 }
-\cs_new:Npn \__xparse_end_expandable_aux:nNNNN #1#2#3#4#5
-  {
-    \token_if_eq_charcode:NNT ? #2 { \exp_after:wN \use_iv:nnnn }
-    \__xparse_end_expandable_defaults:nnnNNn {#1} { } {#1} #2#3
-      { } { } { } { } { } { } { } { } { } { }
-      {
-        \__kernel_msg_expandable_error:nnf
-          { xparse } { loop-in-defaults }
-          { \exp_args:Nf \tl_trim_spaces:n { \token_to_str:N #4 } }
-        \use_iv:nnnn
-      }
-    \q_stop
-  }
-\cs_new:Npn \__xparse_end_expandable_defaults:nnnNNn #1#2#3#4#5#6
-  {
-    #6
-    \str_if_eq:nnTF {#1} {#2}
-      { \use_i_delimit_by_q_stop:nw { #5 #1 } }
-      {
-        \exp_args:No \__xparse_tl_mapthread_function:nnN
-          { #4 #1 } {#3}
-          \__xparse_end_expandable_defaults:nnw
-        \__xparse_end_expandable_defaults:nnnNNn { } {#1} {#3} #4 #5
-      }
-  }
-\cs_new:Npn \__xparse_end_expandable_defaults:nnw #1#2
-  {
-    \tl_if_novalue:nTF {#2}
-      { \exp_args:No \__xparse_end_expandable_defaults:nw {#1} }
-      { \__xparse_end_expandable_defaults:nw {#2} }
-  }
-\cs_new:Npn \__xparse_end_expandable_defaults:nw
-    #1#2 \__xparse_end_expandable_defaults:nnnNNn #3
-  { #2 \__xparse_end_expandable_defaults:nnnNNn { #3 {#1} } }
-\cs_new_protected:Npn \__xparse_normalize_arg_spec:n #1
-  {
-    \int_zero:N \l__xparse_current_arg_int
-    \tl_clear:N \l__xparse_last_delimiters_tl
-    \tl_clear:N \l__xparse_arg_spec_tl
-    \bool_set_true:N \l__xparse_grab_expandably_bool
-    \bool_set_false:N \l__xparse_obey_spaces_bool
-    \bool_set_false:N \l__xparse_long_bool
-    \bool_set_false:N \l__xparse_some_obey_spaces_bool
-    \bool_set_false:N \l__xparse_some_long_bool
-    \bool_set_false:N \l__xparse_some_short_bool
-    \__xparse_normalize_arg_spec_loop:n #1
-      \q_recursion_tail \q_recursion_tail \q_recursion_tail \q_recursion_stop
-    \int_compare:nNnT \l__xparse_current_arg_int > 9
-      {
-        \__kernel_msg_error:nnxx { xparse } { too-many-arguments }
-          { \__xparse_environment_or_command: } { \tl_to_str:n {#1} }
-        \__xparse_bad_def:wn
-      }
-    \bool_if:NT \l__xparse_expandable_bool
-      {
-        \tl_if_empty:NF \l__xparse_last_delimiters_tl
-          {
-            \__kernel_msg_error:nnxx { xparse } { expandable-ending-optional }
-              { \iow_char:N \\ \l__xparse_function_tl } { \tl_to_str:n {#1} }
-            \__xparse_bad_def:wn
-          }
-      }
-    \bool_if:NT \l__xparse_expandable_bool
-      { \bool_set_true:N \l__xparse_grab_expandably_bool }
-    \bool_if:NT \l__xparse_environment_bool
-      { \bool_set_false:N \l__xparse_grab_expandably_bool }
-  }
-\cs_new_protected:Npn \__xparse_normalize_arg_spec_loop:n #1
-  {
     \quark_if_recursion_tail_stop:n {#1}
     \int_incr:N \l__xparse_current_arg_int
     \cs_if_exist_use:cF { __xparse_normalize_type_ \tl_to_str:n {#1} :w }
@@ -445,107 +57,8 @@
         \__xparse_bad_def:wn
       }
   }
-\cs_set_protected:Npn \__xparse_tmp:w #1
-  {
-    \cs_new_protected:Npn \__xparse_normalize_type_d:w ##1##2
-      {
-        \quark_if_recursion_tail_stop_do:nn {##2} { \__xparse_bad_arg_spec:wn }
-        \__xparse_normalize_type_D:w {##1} {##2} {#1}
-      }
-    \cs_new_protected:Npn \__xparse_normalize_type_e:w ##1
-      {
-        \quark_if_recursion_tail_stop_do:nn {##1} { \__xparse_bad_arg_spec:wn }
-        \__xparse_normalize_type_E:w {##1} { }
-      }
-    \cs_new_protected:Npn \__xparse_normalize_type_g:w
-      { \__xparse_normalize_type_G:w {#1} }
-    \cs_new_protected:Npn \__xparse_normalize_type_o:w
-      { \__xparse_normalize_type_D:w [ ] {#1} }
-    \cs_new_protected:Npn \__xparse_normalize_type_O:w
-      { \__xparse_normalize_type_D:w [ ] }
-    \cs_new_protected:Npn \__xparse_normalize_type_r:w ##1##2
-      {
-        \quark_if_recursion_tail_stop_do:nn {##2} { \__xparse_bad_arg_spec:wn }
-        \__xparse_normalize_type_R:w {##1} {##2} {#1}
-      }
-    \cs_new_protected:Npn \__xparse_normalize_type_s:w
-      { \__xparse_normalize_type_t:w * }
-  }
-\exp_args:No \__xparse_tmp:w { \c_novalue_tl }
-\cs_new_protected:cpn { __xparse_normalize_type_>:w } #1#2
-  {
-    \quark_if_recursion_tail_stop_do:nn {#2} { \__xparse_bad_arg_spec:wn }
-    \bool_if:NT \l__xparse_expandable_bool
-      {
-        \__kernel_msg_error:nnxx { xparse } { processor-in-expandable }
-          { \iow_char:N \\ \l__xparse_function_tl } { \tl_to_str:n {#1} }
-        \__xparse_bad_def:wn
-      }
-    \tl_put_right:Nx \l__xparse_arg_spec_tl { > { \tl_trim_spaces:n {#1} } }
-    \int_decr:N \l__xparse_current_arg_int
-    \bool_set_false:N \l__xparse_grab_expandably_bool
-    \__xparse_normalize_arg_spec_loop:n {#2}
-  }
-\cs_new_protected:cpn { __xparse_normalize_type_+:w } #1
-  {
-    \quark_if_recursion_tail_stop_do:nn {#1} { \__xparse_bad_arg_spec:wn }
-    \bool_if:NT \l__xparse_long_bool
-      {
-        \__kernel_msg_error:nnxx { xparse } { two-markers }
-          { \__xparse_environment_or_command: } { + }
-        \__xparse_bad_def:wn
-      }
-    \bool_set_true:N \l__xparse_long_bool
-    \int_decr:N \l__xparse_current_arg_int
-    \__xparse_normalize_arg_spec_loop:n {#1}
-  }
-\cs_new_protected:cpn { __xparse_normalize_type_!:w } #1
-  {
-    \quark_if_recursion_tail_stop_do:nn {#1} { \__xparse_bad_arg_spec:wn }
-    \bool_if:NT \l__xparse_obey_spaces_bool
-      {
-        \__kernel_msg_error:nnxx { xparse } { two-markers }
-          { \__xparse_environment_or_command: } { ! }
-        \__xparse_bad_def:wn
-      }
-    \bool_set_true:N \l__xparse_obey_spaces_bool
-    \bool_set_true:N \l__xparse_some_obey_spaces_bool
-    \int_decr:N \l__xparse_current_arg_int
-    \__xparse_normalize_arg_spec_loop:n {#1}
-  }
-\cs_new_protected:Npn \__xparse_normalize_type_D:w #1#2#3
-  {
-    \quark_if_recursion_tail_stop_do:nn {#3} { \__xparse_bad_arg_spec:wn }
-    \__xparse_single_token_check:n {#1} \__xparse_allowed_token_check:N #1
-    \__xparse_single_token_check:n {#2}
-    \__xparse_add_arg_spec:n { D #1 #2 {#3} }
-    \tl_put_right:Nn \l__xparse_last_delimiters_tl {#1}
-    \bool_set_false:N \l__xparse_grab_expandably_bool
-    \__xparse_normalize_arg_spec_loop:n
-  }
-\cs_new_protected:Npn \__xparse_normalize_type_E:w #1#2
-  {
-    \quark_if_recursion_tail_stop_do:nn {#2} { \__xparse_bad_arg_spec:wn }
-    \tl_if_blank:nT {#1} { \__xparse_bad_arg_spec:wn }
-    \tl_map_function:nN {#1} \__xparse_single_token_check:n
-    \tl_map_function:nN {#1} \__xparse_allowed_token_check:N
-    \__xparse_normalize_E_unique_check:w #1 \q_nil \q_stop
-    \int_compare:nNnT { \tl_count:n {#2} } > { \tl_count:n {#1} }
-      { \__xparse_bad_arg_spec:wn }
-    \__xparse_add_arg_spec:n { E {#1} {#2} }
-    \tl_put_right:Nn \l__xparse_last_delimiters_tl {#1}
-    \bool_set_false:N \l__xparse_grab_expandably_bool
-    \int_add:Nn \l__xparse_current_arg_int { \tl_count:n {#1} - 1 }
-    \__xparse_normalize_arg_spec_loop:n
-  }
-\cs_new_protected:Npn \__xparse_normalize_E_unique_check:w #1#2 \q_stop
-  {
-    \quark_if_nil:NF #1
-      {
-        \tl_if_in:nnT {#2} {#1} { \__xparse_bad_arg_spec:wn }
-        \__xparse_normalize_E_unique_check:w #2 \q_stop
-      }
-  }
+\cs_new_protected:Npx \__xparse_normalize_type_g:w
+  { \exp_not:N \__xparse_normalize_type_G:w { \exp_not:V \c_novalue_tl } }
 \cs_new_protected:Npn \__xparse_normalize_type_G:w #1
   {
     \quark_if_recursion_tail_stop_do:nn {#1} { \__xparse_bad_arg_spec:wn }
@@ -554,21 +67,6 @@
     \tl_put_right:Nn \l__xparse_last_delimiters_tl { { } }
     \__xparse_normalize_arg_spec_loop:n
   }
-\cs_new_protected:Npn \__xparse_normalize_type_t:w #1
-  {
-    \quark_if_recursion_tail_stop_do:Nn #1 { \__xparse_bad_arg_spec:wn }
-    \__xparse_single_token_check:n {#1} \__xparse_allowed_token_check:N #1
-    \tl_put_right:Nx \l__xparse_arg_spec_tl
-      {
-        \bool_if:NT \l__xparse_obey_spaces_bool { ! }
-        t \exp_not:n {#1}
-      }
-    \tl_put_right:Nn \l__xparse_last_delimiters_tl {#1}
-    \bool_set_false:N \l__xparse_grab_expandably_bool
-    \bool_set_false:N \l__xparse_obey_spaces_bool
-    \bool_set_false:N \l__xparse_long_bool
-    \__xparse_normalize_arg_spec_loop:n
-  }
 \cs_new_protected:Npn \__xparse_normalize_type_l:w
   {
     \__xparse_normalize_check_lu:N l
@@ -575,22 +73,6 @@
     \__xparse_add_arg_spec_mandatory:n { l }
     \__xparse_normalize_arg_spec_loop:n
   }
-\cs_new_protected:Npn \__xparse_normalize_type_m:w
-  {
-    \__xparse_delimiter_check:nnn { } { m } { \iow_char:N \{ }
-    \__xparse_add_arg_spec_mandatory:n { m }
-    \__xparse_normalize_arg_spec_loop:n
-  }
-\cs_new_protected:Npn \__xparse_normalize_type_R:w #1#2#3
-  {
-    \quark_if_recursion_tail_stop_do:nn {#3} { \__xparse_bad_arg_spec:wn }
-    \__xparse_single_token_check:n {#1} \__xparse_allowed_token_check:N #1
-    \__xparse_single_token_check:n {#2}
-    \__xparse_delimiter_check:nnn {#1} { R/r } { \tl_to_str:n {#1} }
-    \bool_set_false:N \l__xparse_grab_expandably_bool
-    \__xparse_add_arg_spec_mandatory:n { R #1 #2 {#3} }
-    \__xparse_normalize_arg_spec_loop:n
-  }
 \cs_new_protected:Npn \__xparse_normalize_type_u:w #1
   {
     \quark_if_recursion_tail_stop_do:nn {#1} { \__xparse_bad_arg_spec:wn }
@@ -598,211 +80,6 @@
     \__xparse_add_arg_spec_mandatory:n { u {#1} }
     \__xparse_normalize_arg_spec_loop:n
   }
-\cs_new_protected:Npn \__xparse_normalize_type_v:w
-  {
-    \__xparse_normalize_check_gv:N v
-    \__xparse_add_arg_spec_mandatory:n { v }
-    \__xparse_normalize_arg_spec_loop:n
-  }
-\cs_new_protected:Npn \__xparse_normalize_type_b:w #1
-  {
-    \bool_if:NF \l__xparse_environment_bool
-      {
-        \__kernel_msg_error:nnxx
-          { xparse } { invalid-command-arg }
-          { \__xparse_environment_or_command: } { b }
-        \__xparse_bad_def:wn
-      }
-    \tl_clear:N \l__xparse_last_delimiters_tl
-    \__xparse_add_arg_spec:n { b }
-    \quark_if_recursion_tail_stop:n {#1}
-    \__kernel_msg_error:nnxx { xparse } { arg-after-body }
-      { \__xparse_environment_or_command: }
-      { \tl_to_str:n {#1} }
-    \__xparse_bad_def:wn
-  }
-\cs_new_protected:Npn \__xparse_single_token_check:n #1
-  {
-    \tl_trim_spaces_apply:nN {#1} \tl_if_single_token:nF
-      {
-        \__kernel_msg_error:nnxx { xparse } { not-single-token }
-          { \__xparse_environment_or_command: } { \tl_to_str:n {#1} }
-        \__xparse_bad_def:wn
-      }
-  }
-\cs_new_protected:Npn \__xparse_allowed_token_check:N #1
-  {
-    \token_if_eq_meaning:NNTF #1 \c_group_begin_token
-        { \use:n }
-        {
-          \token_if_eq_meaning:NNTF #1 \c_group_end_token
-            { \use:n }
-            { \use_none:n }
-        }
-      {
-        \__kernel_msg_error:nnxxx
-          { xparse } { forbidden-implicit-group-token }
-          { \__xparse_environment_or_command: } { \tl_to_str:n {#1} }
-          {
-            \token_if_eq_meaning:NNTF #1 \c_group_begin_token
-              { begin } { end }
-          }
-        \__xparse_bad_def:wn
-      }
-  }
-\cs_new_protected:Npn \__xparse_normalize_check_gv:N #1
-  {
-    \bool_if:NT \l__xparse_expandable_bool
-      {
-        \__kernel_msg_error:nnxx
-          { xparse } { invalid-expandable-argument-type }
-          { \iow_char:N \\ \l__xparse_function_tl } { \tl_to_str:n {#1} }
-        \__xparse_bad_def:wn
-      }
-    \bool_set_false:N \l__xparse_grab_expandably_bool
-  }
-\cs_new_protected:Npn \__xparse_normalize_check_lu:N #1
-  {
-    \bool_if:NT \l__xparse_expandable_bool
-      {
-        \tl_if_empty:NF \l__xparse_last_delimiters_tl
-          {
-            \__kernel_msg_error:nnxx
-              { xparse } { invalid-after-optional-expandably }
-              { \iow_char:N \\ \l__xparse_function_tl } { \tl_to_str:n {#1} }
-            \__xparse_bad_def:wn
-          }
-      }
-  }
-\cs_new_protected:Npn \__xparse_delimiter_check:nnn #1#2#3
-  {
-    \tl_map_inline:Nn \l__xparse_last_delimiters_tl
-      {
-        \tl_if_eq:nnT {##1} {#1}
-          {
-            \__kernel_msg_warning:nnxx { xparse } { optional-mandatory }
-              {#2} {#3}
-          }
-      }
-  }
-\cs_new_protected:Npn \__xparse_bad_arg_spec:wn #1 \__xparse_break_point:n #2
-  {
-    \__kernel_msg_error:nnxx { xparse } { bad-arg-spec }
-      { \__xparse_environment_or_command: } { \tl_to_str:n {#2} }
-  }
-\cs_new_protected:Npn \__xparse_bad_def:wn #1 \__xparse_break_point:n #2 { }
-\cs_new_protected:Npn \__xparse_add_arg_spec:n #1
-  {
-    \bool_lazy_and:nnT
-      { ! \l__xparse_long_bool }
-      { \l__xparse_some_long_bool }
-      {
-        \bool_if:NT \l__xparse_expandable_bool
-          {
-            \__kernel_msg_error:nnx { xparse } { inconsistent-long }
-              { \iow_char:N \\ \l__xparse_function_tl }
-            \__xparse_bad_def:wn
-          }
-        \bool_set_false:N \l__xparse_grab_expandably_bool
-      }
-    \bool_if:NTF \l__xparse_long_bool
-      { \bool_set_true:N \l__xparse_some_long_bool }
-      { \bool_set_true:N \l__xparse_some_short_bool }
-    \tl_put_right:Nx \l__xparse_arg_spec_tl
-      {
-        \bool_if:NT \l__xparse_long_bool { + }
-        \bool_if:NT \l__xparse_obey_spaces_bool { ! }
-        \exp_not:n {#1}
-      }
-    \bool_set_false:N \l__xparse_long_bool
-    \bool_set_false:N \l__xparse_obey_spaces_bool
-  }
-\cs_new_protected:Npn \__xparse_add_arg_spec_mandatory:n #1
-  {
-    \bool_if:NT \l__xparse_some_obey_spaces_bool
-      {
-        \__kernel_msg_error:nnxx { xparse } { non-trailing-obey-spaces }
-          { \__xparse_environment_or_command: } { \tl_to_str:n {#1} }
-        \__xparse_bad_def:wn
-      }
-    \tl_clear:N \l__xparse_last_delimiters_tl
-    \__xparse_add_arg_spec:n {#1}
-  }
-\cs_new_protected:Npn \__xparse_prepare_signature:n #1
-  {
-    \int_zero:N \l__xparse_current_arg_int
-    \bool_set_false:N \l__xparse_long_bool
-    \bool_set_false:N \l__xparse_obey_spaces_bool
-    \int_zero:N \l__xparse_m_args_int
-    \bool_set_false:N \l__xparse_defaults_bool
-    \tl_clear:N \l__xparse_defaults_tl
-    \tl_clear:N \l__xparse_process_all_tl
-    \tl_clear:N \l__xparse_process_one_tl
-    \bool_set_false:N \l__xparse_process_some_bool
-    \tl_clear:N \l__xparse_signature_tl
-    \__xparse_prepare_signature:N #1 \q_recursion_tail \q_recursion_stop
-    \bool_if:NF \l__xparse_expandable_bool { \__xparse_flush_m_args: }
-  }
-\cs_new_protected:Npn \__xparse_prepare_signature:N
-  {
-    \bool_set_false:N \l__xparse_prefixed_bool
-    \__xparse_prepare_signature_bypass:N
-  }
-\cs_new_protected:Npn \__xparse_prepare_signature_bypass:N #1
-  {
-    \quark_if_recursion_tail_stop:N #1
-    \use:c
-      {
-         __xparse_add
-         \bool_if:NT \l__xparse_grab_expandably_bool { _expandable }
-         _type_  \token_to_str:N #1 :w
-      }
-  }
-\cs_new_protected:cpn { __xparse_add_type_+:w }
-  {
-    \__xparse_flush_m_args:
-    \bool_set_true:N \l__xparse_long_bool
-    \bool_set_true:N \l__xparse_prefixed_bool
-    \__xparse_prepare_signature_bypass:N
-  }
-\cs_new_protected:cpn { __xparse_add_type_!:w }
-  {
-    \__xparse_flush_m_args:
-    \bool_set_true:N \l__xparse_obey_spaces_bool
-    \bool_set_true:N \l__xparse_prefixed_bool
-    \__xparse_prepare_signature_bypass:N
-  }
-\cs_new_protected:cpn { __xparse_add_type_>:w } #1
-  {
-    \__xparse_flush_m_args:
-    \bool_set_true:N \l__xparse_prefixed_bool
-    \bool_set_true:N \l__xparse_process_some_bool
-    \tl_put_left:Nn \l__xparse_process_one_tl { {#1} }
-    \__xparse_prepare_signature_bypass:N
-  }
-\cs_new_protected:Npn \__xparse_add_type_b:w
-  {
-    \__xparse_flush_m_args:
-    \__xparse_add_default:
-    \__xparse_add_grabber:N b
-    \__xparse_prepare_signature:N
-  }
-\cs_new_protected:Npn \__xparse_add_type_D:w #1#2#3
-  {
-    \__xparse_flush_m_args:
-    \__xparse_add_default:n {#3}
-    \__xparse_add_grabber:N D
-    \tl_put_right:Nn \l__xparse_signature_tl { #1 #2 }
-    \__xparse_prepare_signature:N
-  }
-\cs_new_protected:Npn \__xparse_add_type_E:w #1#2
-  {
-    \__xparse_flush_m_args:
-    \__xparse_add_default_E:nn {#1} {#2}
-    \__xparse_add_grabber:N E
-    \tl_put_right:Nn \l__xparse_signature_tl { {#1} }
-    \__xparse_prepare_signature:N
-  }
 \cs_new_protected:Npn \__xparse_add_type_G:w #1
   {
     \__xparse_flush_m_args:
@@ -817,30 +94,6 @@
     \__xparse_add_grabber:N l
     \__xparse_prepare_signature:N
   }
-\cs_new_protected:Npn \__xparse_add_type_m:w
-  {
-    \__xparse_add_default:
-    \bool_if:NTF \l__xparse_prefixed_bool
-      { \__xparse_add_grabber:N m }
-      { \int_incr:N \l__xparse_m_args_int }
-    \__xparse_prepare_signature:N
-  }
-\cs_new_protected:Npn \__xparse_add_type_R:w #1#2#3
-  {
-    \__xparse_flush_m_args:
-    \__xparse_add_default:n {#3}
-    \__xparse_add_grabber:N R
-    \tl_put_right:Nn \l__xparse_signature_tl { #1 #2 }
-    \__xparse_prepare_signature:N
-  }
-\cs_new_protected:Npn \__xparse_add_type_t:w #1
-  {
-    \__xparse_flush_m_args:
-    \__xparse_add_default:
-    \__xparse_add_grabber:N t
-    \tl_put_right:Nn \l__xparse_signature_tl {#1}
-    \__xparse_prepare_signature:N
-  }
 \cs_new_protected:Npn \__xparse_add_type_u:w #1
   {
     \__xparse_flush_m_args:
@@ -849,149 +102,8 @@
     \tl_put_right:Nn \l__xparse_signature_tl { {#1} }
     \__xparse_prepare_signature:N
   }
-\cs_new_protected:Npn \__xparse_add_type_v:w
-  {
-    \__xparse_flush_m_args:
-    \exp_args:No \__xparse_add_default:n \c_novalue_tl
-    \__xparse_add_grabber:N v
-    \__xparse_prepare_signature:N
-  }
-\cs_new_protected:Npn \__xparse_flush_m_args:
-  {
-    \int_compare:nNnT \l__xparse_m_args_int > 0
-      {
-        \tl_put_right:Nx \l__xparse_signature_tl
-          { \exp_not:c { __xparse_grab_m_ \int_use:N \l__xparse_m_args_int :w } }
-        \tl_put_right:Nx \l__xparse_process_all_tl
-          { \prg_replicate:nn { \l__xparse_m_args_int } { { } } }
-      }
-    \int_zero:N \l__xparse_m_args_int
-  }
-\cs_new_protected:Npn \__xparse_add_grabber:N #1
-  {
-    \tl_put_right:Nx \l__xparse_signature_tl
-      {
-        \exp_not:c
-          {
-            __xparse_grab_ #1
-            \bool_if:NT \l__xparse_long_bool { _long }
-            \bool_if:NT \l__xparse_obey_spaces_bool { _obey_spaces }
-            :w
-          }
-      }
-    \bool_set_false:N \l__xparse_long_bool
-    \bool_set_false:N \l__xparse_obey_spaces_bool
-    \tl_put_right:Nx \l__xparse_process_all_tl
-      { { \exp_not:o \l__xparse_process_one_tl } }
-    \tl_clear:N \l__xparse_process_one_tl
-  }
-\cs_new_protected:Npn \__xparse_add_default:n #1
-  {
-    \tl_if_novalue:nTF {#1}
-      { \__xparse_add_default: }
-      {
-        \int_incr:N \l__xparse_current_arg_int
-        \bool_set_true:N \l__xparse_defaults_bool
-        \tl_put_right:Nn \l__xparse_defaults_tl { { \prg_do_nothing: #1 } }
-      }
-  }
-\cs_new_protected:Npn \__xparse_add_default:
-  {
-    \int_incr:N \l__xparse_current_arg_int
-    \tl_put_right:Nn \l__xparse_defaults_tl { \c_novalue_tl }
-  }
-\cs_new_protected:Npn \__xparse_add_default_E:nn #1#2
-  {
-    \tl_map_function:nN {#2} \__xparse_add_default:n
-    \prg_replicate:nn
-      { \tl_count:n {#1} - \tl_count:n {#2} }
-      { \__xparse_add_default: }
-  }
-\cs_new_protected:cpn { __xparse_add_expandable_type_+:w }
-  {
-    \bool_set_true:N \l__xparse_long_bool
-    \__xparse_prepare_signature:N
-  }
-\cs_new_protected:Npn \__xparse_add_expandable_type_D:w
-  { \__xparse_add_expandable_type_D_aux:NNNn D }
-\cs_new_protected:Npn \__xparse_add_expandable_type_D_aux:NNNn #1#2#3#4
-  {
-    \__xparse_add_default:n {#4}
-    \tl_if_eq:nnTF {#2} {#3}
-      { \__xparse_add_expandable_type_D_aux:NN #1 #2 }
-      { \__xparse_add_expandable_type_D_aux:NNN #1 #2 #3 }
-    \__xparse_prepare_signature:N
-  }
-\cs_new_protected:Npn \__xparse_add_expandable_type_D_aux:NNN #1#2#3
-  {
-    \bool_if:NTF \l__xparse_long_bool
-      { \cs_set:cpx }
-      { \cs_set_nopar:cpx }
-      { \l__xparse_expandable_aux_name_tl } ##1 ##2 #2 ##3 \q__xparse ##4 #3
-      { ##1 {##2} {##3} {##4} }
-    \__xparse_add_expandable_grabber:nn {#1}
-      {
-        \exp_not:c  { \l__xparse_expandable_aux_name_tl }
-        \exp_not:n { #2 #3 }
-      }
-  }
-\cs_new_protected:Npn \__xparse_add_expandable_type_D_aux:NN #1#2
-  {
-    \bool_if:NTF \l__xparse_long_bool
-      { \cs_set:cpx }
-      { \cs_set_nopar:cpx }
-      { \l__xparse_expandable_aux_name_tl } ##1 #2 ##2 #2
-      { ##1 {##2} }
-    \__xparse_add_expandable_grabber:nn { #1_alt }
-      {
-        \exp_not:c  { \l__xparse_expandable_aux_name_tl }
-        \exp_not:n {#2}
-      }
-  }
-\cs_new_protected:Npn \__xparse_add_expandable_type_E:w #1#2
-  {
-    \__xparse_add_default_E:nn {#1} {#2}
-    \tl_clear:N \l__xparse_tmpb_tl
-    \tl_map_function:nN {#1} \__xparse_add_expandable_type_E_aux:n
-    \__xparse_add_expandable_grabber:nn
-      { E \bool_if:NT \l__xparse_long_bool { _long } }
-      {
-        { \exp_not:o \l__xparse_tmpb_tl }
-        {
-          \prg_replicate:nn { \tl_count:n {#1} }
-            { { \c_novalue_tl } }
-        }
-      }
-    \__xparse_prepare_signature:N
-  }
-\cs_new_protected:Npn \__xparse_add_expandable_type_E_aux:n #1
-  {
-    \__xparse_get_grabber:NN #1 \l__xparse_tmpa_tl
-    \tl_put_right:Nx \l__xparse_tmpb_tl
-      { \exp_not:o \l__xparse_tmpa_tl \exp_not:N #1 }
-  }
 \cs_new_protected:Npn \__xparse_add_expandable_type_l:w
   { \__xparse_add_expandable_type_u:w ## }
-\cs_new_protected:Npn \__xparse_add_expandable_type_m:w
-  {
-    \__xparse_add_default:
-    \__xparse_add_expandable_grabber:nn
-      { m \bool_if:NT \l__xparse_long_bool { _long } } { }
-    \__xparse_prepare_signature:N
-  }
-\cs_new_protected:Npn \__xparse_add_expandable_type_R:w
-  { \__xparse_add_expandable_type_D_aux:NNNn R }
-\cs_new_protected:Npn \__xparse_add_expandable_type_t:w #1
-  {
-    \__xparse_add_default:
-    \__xparse_get_grabber:NN #1 \l__xparse_tmpa_tl
-    \__xparse_add_expandable_grabber:nn { t }
-      {
-        \exp_not:o \l__xparse_tmpa_tl
-        \exp_not:N #1
-      }
-    \__xparse_prepare_signature:N
-  }
 \cs_new_protected:Npn \__xparse_add_expandable_type_u:w #1
   {
     \__xparse_add_default:
@@ -1004,227 +116,6 @@
       { \exp_not:c  { \l__xparse_expandable_aux_name_tl } }
     \__xparse_prepare_signature:N
   }
-\cs_new_protected:Npn \__xparse_add_expandable_grabber:nn #1#2
-  {
-    \tl_put_right:Nx \l__xparse_signature_tl
-      { \exp_not:c { __xparse_expandable_grab_ #1 :w } #2 }
-  }
-\cs_new_protected:Npn \__xparse_get_grabber:NN #1#2
-  {
-    \cs_set:Npn \__xparse_tmp:w ##1 #1 {##1}
-    \exp_args:Nc \__xparse_get_grabber_auxi:NN
-      { __xparse_grabber_ \token_to_str:N #1 :w } #2
-  }
-\cs_new_protected:Npn \__xparse_get_grabber_auxi:NN #1#2
-  {
-    \cs_if_eq:NNTF \__xparse_tmp:w #1
-      { \tl_set:Nn #2 {#1} }
-      {
-        \cs_if_exist:NTF #1
-          {
-            \int_gincr:N \g__xparse_grabber_int
-            \exp_args:Nc \__xparse_get_grabber_auxi:NN
-              {
-                __xparse_grabber_
-                - \int_use:N \g__xparse_grabber_int :w
-              }
-              #2
-          }
-          { \__xparse_get_grabber_auxii:NN #1 #2 }
-      }
-  }
-\cs_new_protected:Npn \__xparse_get_grabber_auxii:NN #1#2
-  {
-    \cs_set_eq:NN #1 \__xparse_tmp:w
-    \tl_set:Nn #2 {#1}
-  }
-\cs_new_protected:Npn \__xparse_grab_b:w
-  { \__xparse_grab_b_aux:NNw \cs_set_protected_nopar:Npn \tl_trim_spaces:n }
-\cs_new_protected:Npn \__xparse_grab_b_long:w
-  { \__xparse_grab_b_aux:NNw \cs_set_protected:Npn \tl_trim_spaces:n }
-\cs_new_protected:Npn \__xparse_grab_b_obey_spaces:w
-  { \__xparse_grab_b_aux:NNw \cs_set_protected_nopar:Npn \exp_not:n }
-\cs_new_protected:Npn \__xparse_grab_b_long_obey_spaces:w
-  { \__xparse_grab_b_aux:NNw \cs_set_protected:Npn \exp_not:n }
-\cs_new_protected:Npn \__xparse_grab_b_aux:NNw #1#2#3 \__xparse_run_code:
-  {
-    \__xparse_grab_D_aux:NNnN \begin \end {#3} #1
-    \tl_put_left:Nn \l__xparse_signature_tl { \__xparse_grab_b_end:Nw #2 }
-    \tl_set_eq:NN \l__xparse_saved_args_tl \l__xparse_args_tl
-    \tl_clear:N \l__xparse_args_tl
-    \exp_args:Nc \l__xparse_fn_tl { begin ~ }
-  }
-\cs_new_protected:Npn \__xparse_grab_b_end:Nw #1#2 \__xparse_run_code:
-  {
-    \tl_set:Nx \l__xparse_args_tl
-      {
-        \exp_not:V \l__xparse_saved_args_tl
-        { \exp_after:wN #1 \l__xparse_args_tl }
-      }
-    #2
-    \__xparse_run_code:
-    \end
-  }
-\cs_new_protected:Npn \__xparse_grab_D:w #1#2#3 \__xparse_run_code:
-  {
-    \__xparse_grab_D_aux:NNnNN #1 #2 {#3} \cs_set_protected_nopar:Npn
-      \__xparse_peek_nonspace_remove:NTF
-  }
-\cs_new_protected:Npn \__xparse_grab_D_long:w #1#2#3 \__xparse_run_code:
-  {
-    \__xparse_grab_D_aux:NNnNN #1 #2 {#3} \cs_set_protected:Npn
-      \__xparse_peek_nonspace_remove:NTF
-  }
-\cs_new_protected:Npn \__xparse_grab_D_obey_spaces:w #1#2#3 \__xparse_run_code:
-  {
-    \__xparse_grab_D_aux:NNnNN #1 #2 {#3} \cs_set_protected_nopar:Npn
-      \__xparse_peek_meaning_remove:NTF
-  }
-\cs_new_protected:Npn \__xparse_grab_D_long_obey_spaces:w #1#2#3 \__xparse_run_code:
-  {
-    \__xparse_grab_D_aux:NNnNN #1 #2 {#3} \cs_set_protected:Npn
-      \__xparse_peek_meaning_remove:NTF
-  }
-\cs_new_protected:Npn \__xparse_grab_D_aux:NNnNN #1#2#3#4#5
-  {
-    \__xparse_grab_D_aux:NNnN #1#2 {#3} #4
-    #5 #1
-      { \__xparse_grab_D_call:Nw #1 }
-      { \__xparse_add_arg:o \c_novalue_tl }
-  }
-\cs_new_protected:Npn \__xparse_grab_D_aux:NNnN #1#2#3#4
-  {
-    \tl_set:Nn \l__xparse_signature_tl {#3}
-    \exp_after:wN #4 \l__xparse_fn_tl ##1 #2
-      {
-        \tl_if_in:nnTF {##1} {#1}
-          { \__xparse_grab_D_nested:NNnN #1 #2 {##1} #4 }
-          {
-            \tl_if_blank:oTF { \use_none:n ##1 }
-              { \__xparse_add_arg:o { \use_none:n ##1 } }
-              {
-                \str_if_eq:eeTF
-                  { \exp_not:o { \use_none:n ##1 } }
-                  { { \exp_not:o { \use_ii:nnn ##1 \q_nil } } }
-                  { \__xparse_add_arg:o { \use_ii:nn ##1 } }
-                  { \__xparse_add_arg:o { \use_none:n ##1 } }
-              }
-          }
-      }
-  }
-\tl_new:N \l__xparse_nesting_a_tl
-\tl_new:N \l__xparse_nesting_b_tl
-\quark_new:N \q__xparse
-\cs_new_protected:Npn \__xparse_grab_D_nested:NNnN #1#2#3#4
-  {
-    \tl_clear:N \l__xparse_nesting_a_tl
-    \tl_clear:N \l__xparse_nesting_b_tl
-    \exp_after:wN #4 \l__xparse_fn_tl ##1 #1 ##2 \q__xparse ##3 #2
-      {
-        \tl_put_right:No \l__xparse_nesting_a_tl { \use_none:n ##1 #1 }
-        \tl_put_right:No \l__xparse_nesting_b_tl { \use_i:nn #2 ##3 }
-        \tl_if_in:nnTF {##2} {#1}
-          {
-            \l__xparse_fn_tl
-              \q_nil ##2 \q__xparse \ERROR
-          }
-          {
-            \tl_put_right:Nx \l__xparse_nesting_a_tl
-              { \__xparse_grab_D_nested:w \q_nil ##2 \q_stop }
-            \tl_if_in:NnTF \l__xparse_nesting_b_tl {#1}
-              {
-                \tl_set_eq:NN \l__xparse_tmpa_tl \l__xparse_nesting_b_tl
-                \tl_clear:N \l__xparse_nesting_b_tl
-                \exp_after:wN \l__xparse_fn_tl \exp_after:wN
-                  \q_nil \l__xparse_tmpa_tl \q_nil \q__xparse \ERROR
-              }
-              {
-                \tl_put_right:No \l__xparse_nesting_a_tl
-                  \l__xparse_nesting_b_tl
-                \__xparse_add_arg:V \l__xparse_nesting_a_tl
-              }
-          }
-      }
-    \l__xparse_fn_tl #3 \q_nil \q__xparse \ERROR
-  }
-\cs_new:Npn \__xparse_grab_D_nested:w #1 \q_nil \q_stop
-  { \exp_not:o { \use_none:n #1 } }
-\cs_new_protected_nopar:Npn \__xparse_grab_D_call:Nw #1
-  {
-    \token_if_eq_catcode:NNTF + #1
-      {
-        \exp_after:wN \exp_after:wN \exp_after:wN
-          \l__xparse_fn_tl \char_generate:nn { `#1 } { 11 }
-      }
-      {
-        \__xparse_token_if_cs:NTF #1
-          {
-            \exp_after:wN \l__xparse_fn_tl
-            \cs:w \cs_to_str:N #1 ~ \cs_end:
-          }
-          {
-            \exp_after:wN \l__xparse_fn_tl
-            \token_to_str:N #1
-          }
-      }
-  }
-\cs_new_protected:Npn \__xparse_grab_E:w #1#2 \__xparse_run_code:
-  {
-    \__xparse_grab_E:nnNN {#1} {#2}
-      \cs_set_protected_nopar:Npn
-      \__xparse_peek_nonspace_remove:NTF
-  }
-\cs_new_protected:Npn \__xparse_grab_E_long:w #1#2 \__xparse_run_code:
-  {
-    \__xparse_grab_E:nnNN {#1} {#2}
-      \cs_set_protected:Npn
-      \__xparse_peek_nonspace_remove:NTF
-  }
-\cs_new_protected:Npn \__xparse_grab_E_obey_spaces:w #1#2 \__xparse_run_code:
-  {
-    \__xparse_grab_E:nnNN {#1} {#2}
-      \cs_set_protected_nopar:Npn
-      \__xparse_peek_meaning_remove:NTF
-  }
-\cs_new_protected:Npn \__xparse_grab_E_long_obey_spaces:w #1#2 \__xparse_run_code:
-  {
-    \__xparse_grab_E:nnNN {#1} {#2}
-      \cs_set_protected:Npn
-      \__xparse_peek_meaning_remove:NTF
-  }
-\cs_new_protected:Npn \__xparse_grab_E:nnNN #1#2#3#4
-  {
-    \exp_after:wN #3 \l__xparse_fn_tl ##1##2##3
-      {
-        \prop_put:Nnn \l__xparse_tmp_prop {##1} {##3}
-        \__xparse_grab_E_loop:NnN #4 { } ##2 \q_recursion_stop
-      }
-    \prop_clear:N \l__xparse_tmp_prop
-    \tl_set:Nn \l__xparse_signature_tl {#2}
-    \cs_set_protected:Npn \__xparse_grab_E_finalise:
-      {
-        \tl_map_inline:nn {#1}
-          {
-            \prop_get:NnNF \l__xparse_tmp_prop {####1} \l__xparse_tmpb_tl
-              { \tl_set_eq:NN \l__xparse_tmpb_tl \c_novalue_tl }
-            \tl_put_right:Nx \l__xparse_args_tl
-              { { \exp_not:V \l__xparse_tmpb_tl } }
-          }
-        \l__xparse_signature_tl \__xparse_run_code:
-      }
-    \__xparse_grab_E_loop:NnN #4 { } #1 \q_recursion_tail \q_recursion_stop
-  }
-\cs_new_protected:Npn \__xparse_grab_E_loop:NnN #1#2#3#4 \q_recursion_stop
-  {
-    \cs_if_eq:NNTF #3 \q_recursion_tail
-      { \__xparse_grab_E_finalise: }
-      {
-        #1 #3
-          { \l__xparse_fn_tl #3 {#2#4} }
-          { \__xparse_grab_E_loop:NnN #1 {#2#3} #4 \q_recursion_stop }
-      }
-  }
-\cs_new_protected:Npn \__xparse_grab_E_finalise: { }
 \cs_new_protected:Npn \__xparse_grab_G:w #1 \__xparse_run_code:
   {
     \__xparse_grab_G_aux:nNN {#1} \cs_set_protected_nopar:Npn
@@ -1265,110 +156,6 @@
       { \__xparse_add_arg:n {##1} }
     \l__xparse_fn_tl
   }
-\cs_new_protected:Npn \__xparse_grab_m:w #1 \__xparse_run_code:
-  {
-    \tl_set:Nn \l__xparse_signature_tl {#1}
-    \exp_after:wN \cs_set_protected_nopar:Npn \l__xparse_fn_tl ##1
-      { \__xparse_add_arg:n {##1} }
-    \l__xparse_fn_tl
-  }
-\cs_new_protected:Npn \__xparse_grab_m_long:w #1 \__xparse_run_code:
-  {
-    \tl_set:Nn \l__xparse_signature_tl {#1}
-    \exp_after:wN \cs_set_protected:Npn \l__xparse_fn_tl ##1
-      { \__xparse_add_arg:n {##1} }
-    \l__xparse_fn_tl
-  }
-\cs_new_protected_nopar:Npn \__xparse_grab_m_aux:Nnnnnnnnn #1#2#3#4#5#6#7#8#9
-  {
-    \tl_put_right:No \l__xparse_args_tl
-      { #1 {#2} {#3} {#4} {#5} {#6} {#7} {#8} {#9} }
-    \l__xparse_signature_tl \__xparse_run_code:
-  }
-\cs_new_protected:cpn { __xparse_grab_m_1:w } #1 \__xparse_run_code:
-  {
-    \tl_set:Nn \l__xparse_signature_tl {#1}
-    \exp_after:wN \cs_set_eq:NN \l__xparse_fn_tl \__xparse_grab_m_aux:Nnnnnnnnn
-    \l__xparse_fn_tl \use_none:nnnnnnn { } { } { } { } { } { } { }
-  }
-\cs_new_protected:cpn { __xparse_grab_m_2:w } #1 \__xparse_run_code:
-  {
-    \tl_set:Nn \l__xparse_signature_tl {#1}
-    \exp_after:wN \cs_set_eq:NN \l__xparse_fn_tl \__xparse_grab_m_aux:Nnnnnnnnn
-    \l__xparse_fn_tl \use_none:nnnnnn { } { } { } { } { } { }
-  }
-\cs_new_protected:cpn { __xparse_grab_m_3:w } #1 \__xparse_run_code:
-  {
-    \tl_set:Nn \l__xparse_signature_tl {#1}
-    \exp_after:wN \cs_set_eq:NN \l__xparse_fn_tl \__xparse_grab_m_aux:Nnnnnnnnn
-    \l__xparse_fn_tl \use_none:nnnnn { } { } { } { } { }
-  }
-\cs_new_protected:cpn { __xparse_grab_m_4:w } #1 \__xparse_run_code:
-  {
-    \tl_set:Nn \l__xparse_signature_tl {#1}
-    \exp_after:wN \cs_set_eq:NN \l__xparse_fn_tl \__xparse_grab_m_aux:Nnnnnnnnn
-    \l__xparse_fn_tl \use_none:nnnn { } { } { } { }
-  }
-\cs_new_protected:cpn { __xparse_grab_m_5:w } #1 \__xparse_run_code:
-  {
-    \tl_set:Nn \l__xparse_signature_tl {#1}
-    \exp_after:wN \cs_set_eq:NN \l__xparse_fn_tl \__xparse_grab_m_aux:Nnnnnnnnn
-    \l__xparse_fn_tl \use_none:nnn { } { } { }
-  }
-\cs_new_protected:cpn { __xparse_grab_m_6:w } #1 \__xparse_run_code:
-  {
-    \tl_set:Nn \l__xparse_signature_tl {#1}
-    \exp_after:wN \cs_set_eq:NN \l__xparse_fn_tl \__xparse_grab_m_aux:Nnnnnnnnn
-    \l__xparse_fn_tl \use_none:nn { } { }
-  }
-\cs_new_protected:cpn { __xparse_grab_m_7:w } #1 \__xparse_run_code:
-  {
-    \tl_set:Nn \l__xparse_signature_tl {#1}
-    \exp_after:wN \cs_set_eq:NN \l__xparse_fn_tl \__xparse_grab_m_aux:Nnnnnnnnn
-    \l__xparse_fn_tl \use_none:n { }
-  }
-\cs_new_protected:cpn { __xparse_grab_m_8:w } #1 \__xparse_run_code:
-  {
-    \tl_set:Nn \l__xparse_signature_tl {#1}
-    \exp_after:wN \cs_set_eq:NN \l__xparse_fn_tl \__xparse_grab_m_aux:Nnnnnnnnn
-    \l__xparse_fn_tl \prg_do_nothing:
-  }
-\cs_new_protected:cpx { __xparse_grab_m_9:w }
-  {
-    \exp_not:c { __xparse_grab_m_5:w }
-    \exp_not:c { __xparse_grab_m_4:w }
-  }
-\cs_new_protected:Npn \__xparse_grab_R:w #1#2#3 \__xparse_run_code:
-  { \__xparse_grab_R_aux:NNnN #1 #2 {#3} \cs_set_protected_nopar:Npn }
-\cs_new_protected:Npn \__xparse_grab_R_long:w #1#2#3 \__xparse_run_code:
-  { \__xparse_grab_R_aux:NNnN #1 #2 {#3} \cs_set_protected:Npn }
-\cs_new_protected:Npn \__xparse_grab_R_aux:NNnN #1#2#3#4
-  {
-    \__xparse_grab_D_aux:NNnN #1 #2 {#3} #4
-    \__xparse_peek_nonspace_remove:NTF #1
-      { \__xparse_grab_D_call:Nw #1 }
-      {
-        \__kernel_msg_error:nnxx { xparse } { missing-required }
-          { \__xparse_environment_or_command: }
-          { \token_to_str:N #1 }
-        \__xparse_add_arg:o \c_novalue_tl
-      }
-  }
-\cs_new_protected:Npn \__xparse_grab_t:w
-  { \__xparse_grab_t_aux:NNw \__xparse_peek_nonspace_remove:NTF }
-\cs_new_protected:Npn \__xparse_grab_t_obey_spaces:w
-  { \__xparse_grab_t_aux:NNw \__xparse_peek_meaning_remove:NTF }
-\cs_new_protected:Npn \__xparse_grab_t_aux:NNw #1#2#3 \__xparse_run_code:
-  {
-    \tl_set:Nn \l__xparse_signature_tl {#3}
-    \exp_after:wN \cs_set_protected:Npn \l__xparse_fn_tl
-      {
-        #1 #2
-          { \__xparse_add_arg:n { \BooleanTrue } }
-          { \__xparse_add_arg:n { \BooleanFalse } }
-      }
-    \l__xparse_fn_tl
-  }
 \cs_new_protected:Npn \__xparse_grab_u:w #1#2 \__xparse_run_code:
   { \__xparse_grab_u_aux:nnN {#1} {#2} \cs_set_protected_nopar:Npn }
 \cs_new_protected:Npn \__xparse_grab_u_long:w #1#2 \__xparse_run_code:
@@ -1380,1013 +167,6 @@
       { \__xparse_add_arg:n {##1} }
     \l__xparse_fn_tl
   }
-\tl_new:N \l__xparse_v_arg_tl
-\cs_new_protected:Npn \__xparse_grab_v:w
-  {
-    \bool_set_false:N \l__xparse_long_bool
-    \__xparse_grab_v_aux:w
-  }
-\cs_new_protected:Npn \__xparse_grab_v_long:w
-  {
-    \bool_set_true:N \l__xparse_long_bool
-    \__xparse_grab_v_aux:w
-  }
-\cs_new_protected:Npn \__xparse_grab_v_aux:w #1 \__xparse_run_code:
-  {
-    \tl_set:Nn \l__xparse_signature_tl {#1}
-    \group_begin:
-      \group_align_safe_begin:
-        \tex_escapechar:D = 92 \scan_stop:
-        \tl_clear:N \l__xparse_v_arg_tl
-        \peek_remove_spaces:n
-          {
-            \peek_meaning_remove:NTF \c_group_begin_token
-              {
-                \group_align_safe_end:
-                \__xparse_grab_v_bgroup:
-              }
-              {
-                \peek_N_type:TF
-                  { \__xparse_grab_v_aux_test:N }
-                  { \__xparse_grab_v_aux_abort:n { } }
-              }
-          }
-  }
-\cs_new_protected:Npn \__xparse_grab_v_group_end:
-  {
-        \group_align_safe_end:
-        \exp_args:NNNo
-      \group_end:
-    \tl_set:Nn \l__xparse_v_arg_tl { \l__xparse_v_arg_tl }
-  }
-\cs_new_protected:Npn \__xparse_grab_v_aux_test:N #1
-  {
-    \__xparse_grab_v_token_if_char:NTF #1
-      {
-        \__xparse_grab_v_aux_put:N #1
-        \__xparse_grab_v_aux_catcodes:
-        \__xparse_grab_v_aux_loop:N #1
-      }
-      { \__xparse_grab_v_aux_abort:n {#1} #1 }
-  }
-\cs_new_protected:Npn \__xparse_grab_v_aux_loop:N #1
-  {
-    \peek_N_type:TF
-      { \__xparse_grab_v_aux_loop:NN #1 }
-      { \__xparse_grab_v_aux_abort:n { } }
-  }
-\cs_new_protected:Npn \__xparse_grab_v_aux_loop:NN #1#2
-  {
-    \__xparse_grab_v_token_if_char:NTF #2
-      {
-        \token_if_eq_charcode:NNTF #1 #2
-          { \__xparse_grab_v_aux_loop_end: }
-          {
-            \__xparse_grab_v_aux_put:N #2
-            \__xparse_grab_v_aux_loop:N #1
-          }
-      }
-      { \__xparse_grab_v_aux_abort:n {#2} #2 }
-  }
-\cs_new_protected:Npn \__xparse_grab_v_aux_loop_end:
-  {
-    \__xparse_grab_v_group_end:
-    \__xparse_add_arg:x { \tl_tail:N \l__xparse_v_arg_tl }
-  }
-\int_new:N \l__xparse_v_nesting_int
-\cs_new_protected:Npx \__xparse_grab_v_bgroup:
-  {
-    \exp_not:N \__xparse_grab_v_aux_catcodes:
-    \exp_not:n { \int_set:Nn \l__xparse_v_nesting_int { 1 } }
-    \exp_not:N \__xparse_grab_v_aux_put:N \iow_char:N \{
-    \exp_not:N \__xparse_grab_v_bgroup_loop:
-  }
-\cs_new_protected:Npn \__xparse_grab_v_bgroup_loop:
-  {
-    \peek_N_type:TF
-      { \__xparse_grab_v_bgroup_loop:N }
-      { \__xparse_grab_v_aux_abort:n { } }
-  }
-\cs_new_protected:Npn \__xparse_grab_v_bgroup_loop:N #1
-  {
-    \__xparse_grab_v_token_if_char:NTF #1
-      {
-        \token_if_eq_charcode:NNTF \c_group_end_token #1
-          {
-            \int_decr:N \l__xparse_v_nesting_int
-            \int_compare:nNnTF \l__xparse_v_nesting_int > 0
-              {
-                \__xparse_grab_v_aux_put:N #1
-                \__xparse_grab_v_bgroup_loop:
-              }
-              { \__xparse_grab_v_aux_loop_end: }
-          }
-          {
-            \token_if_eq_charcode:NNT \c_group_begin_token #1
-              { \int_incr:N \l__xparse_v_nesting_int }
-            \__xparse_grab_v_aux_put:N #1
-            \__xparse_grab_v_bgroup_loop:
-          }
-      }
-      { \__xparse_grab_v_aux_abort:n {#1} #1 }
-  }
-\cs_new_protected:Npn \__xparse_grab_v_aux_catcodes:
-  {
-    \cs_set_eq:NN \do \char_set_catcode_other:N
-    \dospecials
-    \tex_endlinechar:D = `\^^M \scan_stop:
-    \bool_if:NTF \l__xparse_long_bool
-      { \char_set_catcode_other:n { \tex_endlinechar:D } }
-      { \char_set_catcode_parameter:n { \tex_endlinechar:D } }
-  }
-\cs_new_protected:Npn \__xparse_grab_v_aux_abort:n #1
-  {
-    \__xparse_grab_v_group_end:
-    \exp_after:wN \exp_after:wN \exp_after:wN
-      \peek_meaning_remove:NTF \char_generate:nn { \tex_endlinechar:D } { 6 }
-      {
-        \__kernel_msg_error:nnxxx { xparse } { verbatim-newline }
-          { \__xparse_environment_or_command: }
-          { \tl_to_str:N \l__xparse_v_arg_tl }
-          { \tl_to_str:n {#1} }
-        \__xparse_add_arg:o \c_novalue_tl
-      }
-      {
-        \__kernel_msg_error:nnxxx { xparse } { verbatim-tokenized }
-          { \__xparse_environment_or_command: }
-          { \tl_to_str:N \l__xparse_v_arg_tl }
-          { \tl_to_str:n {#1} }
-        \__xparse_add_arg:o \c_novalue_tl
-      }
-  }
-\cs_new_protected:Npn \__xparse_grab_v_aux_put:N #1
-  {
-    \tl_put_right:Nx \l__xparse_v_arg_tl
-      {
-        \token_if_active:NTF #1
-          { \exp_not:N #1 } { \token_to_str:N #1 }
-      }
-  }
-\cs_new_protected:Npn \__xparse_grab_v_token_if_char:NTF #1
-  { \str_if_eq:eeTF { } { \str_tail:n {#1} } }
-\cs_new_protected:Npn \__xparse_add_arg:n #1
-  {
-    \tl_put_right:Nn \l__xparse_args_tl { {#1} }
-    \l__xparse_signature_tl \__xparse_run_code:
-  }
-\cs_generate_variant:Nn \__xparse_add_arg:n { V , o , x }
-\cs_new:Npn \__xparse_expandable_grab_D:w #1 \q__xparse #2#3
-  { #2 { \__xparse_expandable_grab_D:NNNwNNn #1 \q__xparse #2 #3 } }
-\cs_set_protected:Npn \__xparse_tmp:w #1
-  {
-    \cs_new:Npn \__xparse_expandable_grab_D:NNNwNNn ##1##2##3##4 \q__xparse ##5##6##7
-      {
-        \str_if_eq:nnTF {##2} {##7}
-          {
-            \str_if_eq:onTF
-              { ##1 { } { } ##7 ##2 \q__xparse ##3 }
-              { { } {##2} { } }
-          }
-          { \use_ii:nn }
-          {
-            ##1
-              { \__xparse_expandable_grab_D:NNNwNNnnn ##1##2##3##4 \q__xparse ##5##6 }
-              \q_nil { } ##2 \ERROR \q__xparse \ERROR
-          }
-          { ##4 {#1} \q__xparse ##5 ##6 {##7} }
-      }
-  }
-\exp_args:No \__xparse_tmp:w { \c_novalue_tl }
-\cs_new:Npn \__xparse_expandable_grab_D:NNNwNNnnn #1#2#3#4 \q__xparse #5#6#7#8#9
-  {
-    \exp_args:Nof \__xparse_expandable_grab_D:nnNNNwNN
-      { \use_ii:nn #7 #2 }
-      { \__xparse_expandable_grab_D:Nw #3 \exp_stop_f: #8 #9 }
-    #1#2#3 #4 \q__xparse #5 #6
-  }
-\cs_new:Npn \__xparse_expandable_grab_D:Nw #1#2 \ERROR \ERROR { #2 #1 }
-\cs_new:Npn \__xparse_expandable_grab_D:nnNNNwNN #1#2#3#4#5#6 \q__xparse #7#8
-  {
-    \exp_args:No \tl_if_empty:oTF
-      { #3 { \use_none:nnn } #2 \q__xparse #5 #4 \q__xparse #5 }
-      {
-        \tl_if_blank:oTF { \use_none:nn #1#2 }
-          { \__xparse_put_arg_expandable:ow { \use_none:nn #1#2 } }
-          {
-            \str_if_eq:eeTF
-              { \exp_not:o { \use_none:nn #1#2 } }
-              { { \exp_not:o { \use_iii:nnnn #1#2 \q_nil } } }
-              { \__xparse_put_arg_expandable:ow { \use_iii:nnn #1#2 } }
-              { \__xparse_put_arg_expandable:ow { \use_none:nn #1#2 } }
-          }
-            #6 \q__xparse #7 #8
-      }
-      {
-        #3
-          { \__xparse_expandable_grab_D:NNNwNNnnn #3#4#5#6 \q__xparse #7 #8 }
-          \q_nil {#1} #2 \ERROR \q__xparse \ERROR
-      }
-  }
-\cs_new:Npn \__xparse_expandable_grab_D_alt:w #1 \q__xparse #2#3
-  { #2 { \__xparse_expandable_grab_D_alt:NNwNNn #1 \q__xparse #2 #3 } }
-\cs_set_protected:Npn \__xparse_tmp:w #1
-  {
-    \cs_new:Npn \__xparse_expandable_grab_D_alt:NNwNNn ##1##2##3 \q__xparse ##4##5##6
-      {
-        \str_if_eq:nnTF {##6} {##2}
-          {
-            \str_if_eq:onTF
-              { ##1 { } ##6 ##2 ##2 }
-              { { } ##2 }
-          }
-          { \use_ii:nn }
-          {
-            ##1
-              { \__xparse_expandable_grab_D_alt:NNwn ##4 ##5 ##3 \q__xparse }
-              ##6 \ERROR
-          }
-          { ##3 {#1} \q__xparse ##4 ##5 {##6} }
-      }
-  }
-\exp_args:No \__xparse_tmp:w { \c_novalue_tl }
-\cs_new:Npn \__xparse_expandable_grab_D_alt:NNwn #1#2#3 \q__xparse #4
-  {
-    \tl_if_blank:oTF { \use_none:n #4 }
-      { \__xparse_put_arg_expandable:ow { \use_none:n #4 } }
-      {
-        \str_if_eq:eeTF
-          { \exp_not:o { \use_none:n #4 } }
-          { { \exp_not:o { \use_ii:nnn #4 \q_nil } } }
-          { \__xparse_put_arg_expandable:ow { \use_ii:nn #4 } }
-          { \__xparse_put_arg_expandable:ow { \use_none:n #4 } }
-      }
-        #3 \q__xparse #1 #2
-  }
-\cs_new:Npn \__xparse_expandable_grab_E:w #1 \q__xparse #2#3
-  { \__xparse_expandable_grab_E_aux:w #1 \q__xparse #2 #3 #3 }
-\cs_new:Npn \__xparse_expandable_grab_E_long:w #1 \q__xparse #2#3
-  { \__xparse_expandable_grab_E_aux:w #1 \q__xparse #2 #3 #2 }
-\cs_new:Npn \__xparse_expandable_grab_E_aux:w #1 \q__xparse #2#3#4
-  { #2 { \__xparse_expandable_grab_E_test:nnw #1 \q__xparse #2 #3 #4 } }
-\cs_new:Npn \__xparse_expandable_grab_E_test:nnw #1#2#3 \q__xparse #4#5#6#7
-  {
-    \__xparse_expandable_grab_E_loop:nnnNNw {#7} { } { }
-      #1 \q_nil \q_nil \q_nil \q_mark #2 \q_nil
-    #3 \q__xparse #4 #5 #6
-  }
-\cs_new:Npn \__xparse_expandable_grab_E_loop:nnnNNw
-    #1#2#3#4#5#6 \q_nil #7 \q_mark #8
-  {
-    \quark_if_nil:NTF #4
-      { \__xparse_expandable_grab_E_end:nnw {#1} {#3} }
-      {
-        \tl_if_novalue:nTF {#8}
-          { \str_if_eq:onTF { #4 { } #1 #5 } {#5} }
-          { \use_ii:nn }
-            { \__xparse_expandable_grab_E_find:w { #2 #4 #5 #6 } {#3} ~ }
-            {
-              \__xparse_expandable_grab_E_loop:nnnNNw
-                {#1} { #2 #4 #5 } { #3 {#8} }
-                #6 \q_nil #7 \q_mark
-            }
-      }
-  }
-\cs_new:Npn \__xparse_expandable_grab_E_find:w #1 \q__xparse #2#3#4
-  { #4 { \__xparse_expandable_grab_E_find:nnw #1 \q__xparse #2 #3 #4 } }
-\cs_new:Npn \__xparse_expandable_grab_E_find:nnw #1#2#3 \q_nil #4 \q__xparse #5#6#7#8
-  { \__xparse_expandable_grab_E_aux:w {#1} { #2 {#8} #3 } #4 \q__xparse #5 #6 #7 }
-\cs_new:Npn \__xparse_expandable_grab_E_end:nnw #1#2#3 \q__xparse #4#5#6
-  { #3 #2 \q__xparse #4 #5 {#1} }
-\cs_new:Npn \__xparse_expandable_grab_m:w #1 \q__xparse #2#3
-  { #3 { \__xparse_expandable_grab_m_aux:wNn #1 \q__xparse #2 #3 } }
-\cs_new:Npn \__xparse_expandable_grab_m_long:w #1 \q__xparse #2#3
-  { #2 { \__xparse_expandable_grab_m_aux:wNn #1 \q__xparse #2 #3 } }
-\cs_new:Npn \__xparse_expandable_grab_m_aux:wNn #1 \q__xparse #2#3#4
-  { #1 {#4} \q__xparse #2 #3 }
-\cs_new:Npn \__xparse_expandable_grab_R:w #1 \q__xparse #2#3
-  { #2 { \__xparse_expandable_grab_R_aux:NNNwNNn #1 \q__xparse #2#3 } }
-\cs_set_protected:Npn \__xparse_tmp:w #1
-  {
-    \cs_new:Npn \__xparse_expandable_grab_R_aux:NNNwNNn ##1##2##3##4 \q__xparse ##5##6##7
-      {
-        \str_if_eq:nnTF {##7} {##2}
-          {
-            \str_if_eq:onTF
-              { ##1 { } { } ##7 ##2 \q__xparse ##3 }
-              { { } {##2} { } }
-          }
-          { \use_ii:nn }
-          {
-            ##1
-              { \__xparse_expandable_grab_D:NNNwNNnnn ##1##2##3##4 \q__xparse ##5##6 }
-              \q_nil { } ##2 \ERROR \q__xparse \ERROR
-          }
-          {
-            \__kernel_msg_expandable_error:nnff
-              { xparse } { missing-required }
-              { \exp_args:Nf \tl_trim_spaces:n { \token_to_str:N ##5 } }
-              { \tl_to_str:n {##2} }
-            ##4 {#1} \q__xparse ##5 ##6 {##7}
-          }
-      }
-  }
-\exp_args:No \__xparse_tmp:w { \c_novalue_tl }
-\cs_new:Npn \__xparse_expandable_grab_R_alt:w #1 \q__xparse #2#3
-  { #2 { \__xparse_expandable_grab_R_alt_aux:NNwNNn #1 \q__xparse #2#3 } }
-\cs_set_protected:Npn \__xparse_tmp:w #1
-  {
-    \cs_new:Npn \__xparse_expandable_grab_R_alt_aux:NNwNNn ##1##2##3 \q__xparse ##4##5##6
-      {
-        \str_if_eq:nnTF {##6} {##2}
-          {
-            \str_if_eq:onTF
-              { ##1 { } ##6 ##2 ##2 }
-              { { } ##2 }
-          }
-          { \use_ii:nn }
-          {
-            ##1
-              { \__xparse_expandable_grab_D_alt:NNwn ##4 ##5 ##3 \q__xparse }
-              ##6 \ERROR
-          }
-          {
-            \__kernel_msg_expandable_error:nnff
-              { xparse } { missing-required }
-              { \exp_args:Nf \tl_trim_spaces:n { \token_to_str:N ##4 } }
-              { \tl_to_str:n {##2} }
-            ##3 {#1} \q__xparse ##4 ##5 {##6}
-          }
-      }
-  }
-\exp_args:No \__xparse_tmp:w { \c_novalue_tl }
-\cs_new:Npn \__xparse_expandable_grab_t:w #1 \q__xparse #2#3
-  { #2 { \__xparse_expandable_grab_t_aux:NNwn #1 \q__xparse #2 #3 } }
-\cs_new:Npn \__xparse_expandable_grab_t_aux:NNwn #1#2#3 \q__xparse #4#5#6
-  {
-    \str_if_eq:onTF { #1 { } #6 #2 } {#2}
-      { #3 { \BooleanTrue } \q__xparse #4 #5 }
-      { #3 { \BooleanFalse } \q__xparse #4 #5 {#6} }
-  }
-\cs_new_eq:NN \__xparse_expandable_grab_u:w \prg_do_nothing:
-\cs_new:Npn \__xparse_put_arg_expandable:nw #1#2 \q__xparse { #2 {#1} \q__xparse }
-\cs_generate_variant:Nn \__xparse_put_arg_expandable:nw { o }
-\cs_new_protected:Npn \__xparse_bool_reverse:N #1
-  {
-    \bool_if:NTF #1
-      { \tl_set:Nn \ProcessedArgument { \c_false_bool } }
-      { \tl_set:Nn \ProcessedArgument { \c_true_bool } }
-  }
-\seq_new:N \l__xparse_split_list_seq
-\tl_new:N \l__xparse_split_list_tl
-\cs_new_protected:Npn \__xparse_split_list:nn #1#2
-  {
-    \tl_if_single:nTF {#1}
-      {
-        \token_if_cs:NTF #1
-          { \__xparse_split_list_multi:nn {#1} {#2} }
-          { \__xparse_split_list_single:Nn #1 {#2} }
-      }
-      { \__xparse_split_list_multi:nn {#1} {#2} }
-  }
-\cs_new_protected:Npn \__xparse_split_list_multi:nn #1#2
-  {
-    \seq_set_split:Nnn \l__xparse_split_list_seq {#1} {#2}
-    \tl_clear:N \ProcessedArgument
-    \seq_map_inline:Nn \l__xparse_split_list_seq
-      { \tl_put_right:Nn \ProcessedArgument { {##1} } }
-  }
-\cs_generate_variant:Nn \__xparse_split_list_multi:nn { nV }
-\group_begin:
-\char_set_catcode_active:N \^^@
-\cs_new_protected:Npn \__xparse_split_list_single:Nn #1#2
-  {
-    \tl_set:Nn \l__xparse_split_list_tl {#2}
-    \group_begin:
-    \char_set_lccode:nn { `\^^@ } { `#1 }
-    \tex_lowercase:D
-      {
-        \group_end:
-        \tl_replace_all:Nnn \l__xparse_split_list_tl { ^^@ }
-      }   {#1}
-     \__xparse_split_list_multi:nV {#1} \l__xparse_split_list_tl
-   }
-\group_end:
-\cs_new_protected:Npn \__xparse_split_argument:nnn #1#2#3
-  {
-    \__xparse_split_list:nn {#2} {#3}
-    \exp_args:Nf \__xparse_split_argument_aux:nnnn
-      { \tl_count:N \ProcessedArgument }
-      {#1} {#2} {#3}
-  }
-\cs_new_protected:Npn \__xparse_split_argument_aux:nnnn #1#2#3#4
-  {
-    \int_compare:nNnF {#1} = { #2 + 1 }
-      {
-        \int_compare:nNnTF {#1} > { #2 + 1 }
-          {
-            \tl_set:Nx \ProcessedArgument
-              {
-                \exp_last_unbraced:NnNo
-                  \__xparse_split_argument_aux:n
-                  { #2 + 1 }
-                  \use_none_delimit_by_q_stop:w
-                  \ProcessedArgument
-                  \q_stop
-              }
-            \__kernel_msg_error:nnxxx { xparse } { split-excess-tokens }
-              { \tl_to_str:n {#3} } { \int_eval:n { #2 + 1 } }
-              { \tl_to_str:n {#4} }
-          }
-          {
-            \tl_put_right:Nx \ProcessedArgument
-              {
-                \prg_replicate:nn { #2 + 1 - (#1) }
-                  { { \exp_not:V \c_novalue_tl } }
-              }
-          }
-      }
-  }
-\cs_new:Npn \__xparse_split_argument_aux:n #1
-  { \prg_replicate:nn {#1} { \__xparse_split_argument_aux:wn } }
-\cs_new:Npn \__xparse_split_argument_aux:wn #1 \use_none_delimit_by_q_stop:w #2
-  {
-    \exp_not:n { {#2} }
-    #1
-    \use_none_delimit_by_q_stop:w
-  }
-\cs_new_protected:Npn \__xparse_trim_spaces:n #1
-  { \tl_set:Nx \ProcessedArgument { \tl_trim_spaces:n {#1} } }
-\cs_new_protected:Npn \__xparse_get_arg_spec_error:N #1
-  {
-    \bool_set_false:N \l__xparse_environment_bool
-    \tl_set:Nn \l__xparse_fn_tl {#1}
-    \__xparse_get_arg_spec_error_aux:n { \cs_if_exist:NTF #1 }
-  }
-\cs_new_protected:Npn \__xparse_get_arg_spec_error:n #1
-  {
-    \bool_set_true:N \l__xparse_environment_bool
-    \str_set:Nx \l__xparse_environment_str {#1}
-    \__xparse_get_arg_spec_error_aux:n
-      { \cs_if_exist:cTF { \l__xparse_environment_str } }
-  }
-\cs_new_protected:Npn \__xparse_get_arg_spec_error_aux:n #1
-  {
-    #1
-      {
-        \__kernel_msg_error:nnx { xparse } { non-xparse }
-          { \__xparse_environment_or_command: }
-      }
-      {
-        \__kernel_msg_error:nnx { xparse } { unknown }
-          { \__xparse_environment_or_command: }
-      }
-  }
-\cs_new_protected:Npn \__xparse_get_arg_spec:NTF #1#2#3
-  {
-    \__xparse_cmd_if_xparse:NTF #1
-      {
-        \tl_set:Nx \ArgumentSpecification { \tl_item:Nn #1 { 2 } }
-        #2
-      }
-      {#3}
-  }
-\cs_new_protected:Npn \__xparse_get_arg_spec:N #1
-  {
-    \__xparse_get_arg_spec:NTF #1 { }
-      { \__xparse_get_arg_spec_error:N #1 }
-  }
-\cs_new_protected:Npn \__xparse_get_arg_spec:n #1
-  {
-    \exp_args:Nc \__xparse_get_arg_spec:NTF
-      { environment~ \tl_to_str:n {#1} }
-      { }
-      { \__xparse_get_arg_spec_error:n {#1} }
-  }
-\tl_new:N \ArgumentSpecification
-\cs_new_protected:Npn \__xparse_show_arg_spec:N #1
-  {
-    \__xparse_get_arg_spec:NTF #1
-      { \tl_show:N \ArgumentSpecification }
-      { \__xparse_get_arg_spec_error:N #1 }
-  }
-\cs_new_protected:Npn \__xparse_show_arg_spec:n #1
-  {
-    \exp_args:Nc \__xparse_get_arg_spec:NTF
-      { environment~ \tl_to_str:n {#1} }
-      { \tl_show:N \ArgumentSpecification }
-      { \__xparse_get_arg_spec_error:n {#1} }
-  }
-\cs_new_protected:Npn \__xparse_check_definable:nNT #1
-  { \tl_trim_spaces_apply:nN {#1} \__xparse_check_definable_aux:nN }
-\group_begin:
-  \char_set_catcode_active:n { `? }
-  \cs_new_protected:Npn \__xparse_check_definable_aux:nN #1#2
-    {
-      \group_begin:
-      \tl_if_single_token:nTF {#1}
-        {
-          \int_set:Nn \tex_escapechar:D { 92 }
-          \exp_args:Nx \tl_if_empty:nTF
-            { \exp_args:No \str_tail:n { \token_to_str:N #1 } }
-            {
-              \exp_args:Nx \char_set_lccode:nn
-                { ` \str_head:n {#1} } { `? }
-              \tex_lowercase:D { \tl_if_eq:nnTF {#1} } { ? }
-                { \group_end: \use_iii:nnn }
-                { \group_end: \use_i:nnn }
-            }
-            { \group_end: \use_iii:nnn }
-        }
-        { \group_end: \use_ii:nnn }
-      {
-        \__kernel_msg_error:nnxx { xparse } { not-definable }
-          { \tl_to_str:n {#1} } { \token_to_str:N #2 }
-      }
-      {
-        \__kernel_msg_error:nnxx { xparse } { not-one-token }
-          { \tl_to_str:n {#1} } { \token_to_str:N #2 }
-      }
-    }
-\group_end:
-\cs_new_protected:Npn \__xparse_token_if_cs:NTF #1
-  {
-    \group_begin:
-      \int_set:Nn \tex_escapechar:D { 92 }
-      \exp_args:Nx \tl_if_empty:nTF
-          { \exp_args:No \str_tail:n { \token_to_str:N #1 } }
-        { \group_end: \use_ii:nn }
-        { \group_end: \use_i:nn }
-  }
-\cs_new:Npn \__xparse_tl_mapthread_function:NNN #1#2#3
-  {
-    \exp_after:wN \exp_after:wN
-    \exp_after:wN \__xparse_tl_mapthread_loop:w
-    \exp_after:wN \exp_after:wN
-    \exp_after:wN #3
-    \exp_after:wN #1
-    \exp_after:wN \q_recursion_tail
-    \exp_after:wN \q_mark
-    #2
-    \q_recursion_tail
-    \q_recursion_stop
-  }
-\cs_new:Npn \__xparse_tl_mapthread_function:nnN #1#2#3
-  {
-    \__xparse_tl_mapthread_loop:w #3
-      #1 \q_recursion_tail \q_mark
-      #2 \q_recursion_tail \q_recursion_stop
-  }
-\cs_new:Npn \__xparse_tl_mapthread_loop:w #1#2#3 \q_mark #4
-  {
-    \quark_if_recursion_tail_stop:n {#2}
-    \quark_if_recursion_tail_stop:n {#4}
-    #1 {#2} {#4}
-    \__xparse_tl_mapthread_loop:w #1#3 \q_mark
-  }
-\cs_new_protected:Npn \__xparse_cmd_if_xparse:NTF #1
-  {
-    \exp_args:Nf \str_case_e:nnTF
-      {
-        \exp_args:Nf \tl_if_empty:nT { \cs_argument_spec:N #1 }
-          {
-            \exp_last_unbraced:Nf \__xparse_cmd_if_xparse_aux:w
-              { \cs_replacement_spec:N #1 } ~ \q_stop
-          }
-      }
-      {
-        { \token_to_str:N \__xparse_start:nNNnnn } { }
-        { \token_to_str:N \__xparse_start_expandable:nNNNNn } { }
-        { \token_to_str:N \__xparse_start_env:nnnnn } { }
-      }
-  }
-\cs_new:Npn \__xparse_cmd_if_xparse_aux:w #1 ~ #2 \q_stop {#1}
-\cs_new_protected:Npn \__xparse_peek_nonspace:NTF
-  { \__xparse_peek_nonspace_aux:nNNTF { } \__xparse_peek_meaning:NTF }
-\cs_new_protected:Npn \__xparse_peek_nonspace_remove:NTF
-  { \__xparse_peek_nonspace_aux:nNNTF { } \__xparse_peek_meaning_remove:NTF }
-\cs_new_protected:Npn \__xparse_peek_nonspace_aux:nNNTF #1#2#3#4#5
-  {
-    \peek_meaning_remove:NTF \c_space_token
-      { \__xparse_peek_nonspace_aux:nNNTF { #1 ~ } #2 #3 {#4} {#5} }
-      { #2 #3 { #4 } { #5 #1 } }
-  }
-\cs_new_protected:Npn \__xparse_peek_meaning:NTF
-  { \__xparse_peek_meaning_aux:NNTF \c_false_bool }
-\cs_new_protected:Npn \__xparse_peek_meaning_remove:NTF
-  { \__xparse_peek_meaning_aux:NNTF \c_true_bool }
-\cs_new_protected:Npn \__xparse_peek_meaning_aux:NNTF #1#2#3#4
-  {
-    \tl_set:Nn \l__xparse_tmpa_tl {#3}
-    \tl_set:Nn \l__xparse_tmpb_tl {#4}
-    \peek_meaning:NTF #2
-      {
-        \token_if_eq_meaning:NNTF #2 \c_group_begin_token
-          { \__xparse_peek_true_remove:Nw #1 }
-          {
-            \__xparse_token_if_cs:NTF #2
-              { \__xparse_peek_cs_check_equal:NNN #1 #2 }
-              { \__xparse_peek_true_remove:Nw #1 }
-          }
-      }
-      { \l__xparse_tmpb_tl }
-  }
-\cs_new_protected:Npn \__xparse_peek_cs_check_equal:NNN #1#2#3
-  {
-    \str_if_eq:nnTF {#2} {#3}
-      { \__xparse_peek_true_remove:Nw #1 }
-      { \l__xparse_tmpb_tl }
-    #3
-  }
-\cs_new_protected:Npn \__xparse_peek_true_remove:Nw #1
-  {
-    \bool_if:NTF #1
-      {
-        \tex_afterassignment:D \l__xparse_tmpa_tl
-        \cs_set_eq:NN \__xparse_tmp:w
-      }
-      { \l__xparse_tmpa_tl }
-  }
-\cs_new:Npn \__xparse_environment_or_command:
-  {
-    \bool_if:NTF \l__xparse_environment_bool
-      { environment ~ ' \l__xparse_environment_str ' }
-      {
-        command ~ '
-        \exp_args:Nf \tl_trim_spaces:n
-          { \exp_after:wN \token_to_str:N \l__xparse_fn_tl }
-        '
-      }
-  }
-\tl_const:Nn \c__xparse_ignore_def_tl
-  { \\ \\ LaTeX~will~ignore~this~entire~definition. }
-\__kernel_msg_new:nnnn { xparse } { arg-after-body }
-  { In~the~definition~of~#1,~b~(body)~argument~must~be~last. }
-  {
-    The~'body'~argument~type~is~followed~by~'#2'~in~the~argument~
-    specification~of~the~#1.~This~is~not~allowed.
-    \c__xparse_ignore_def_tl
-  }
-\__kernel_msg_new:nnnn { xparse } { bad-arg-spec }
-  { Bad~argument~specification~'#2'~for~#1. }
-  {
-    The~argument~specification~provided~was~not~valid:~
-    one~or~more~mandatory~pieces~of~information~were~missing.
-    \c__xparse_ignore_def_tl
-  }
-\__kernel_msg_new:nnnn { xparse } { command-already-defined }
-  { Command~'#1'~already~defined! }
-  {
-    You~have~used~#2~
-    with~a~command~that~already~has~a~definition. \\ \\
-    The~existing~definition~of~'#1'~will~not~be~altered.
-  }
-\__kernel_msg_new:nnnn { xparse } { command-not-yet-defined }
-  { Command ~'#1'~not~yet~defined! }
-  {
-    You~have~used~#2~
-    with~a~command~that~was~never~defined.
-    \c__xparse_ignore_def_tl
-  }
-\__kernel_msg_new:nnnn { xparse } { environment-already-defined }
-  { Environment~'#1'~already~defined! }
-  {
-    You~have~used~\NewDocumentEnvironment
-    with~an~environment~that~already~has~a~definition. \\ \\
-    The~existing~definition~of~'#1'~will~not~be~altered.
-  }
-\__kernel_msg_new:nnnn { xparse } { environment-not-yet-defined }
-  { Environment~'#1'~not~yet~defined! }
-  {
-    You~have~used~\RenewDocumentEnvironment
-    with~an~environment~that~was~never~defined.
-    \c__xparse_ignore_def_tl
-  }
-\__kernel_msg_new:nnnn { xparse } { expandable-ending-optional }
-  {
-    Argument~specification~'#2'~for~expandable~command~'#1'~
-    ends~with~optional~argument.
-  }
-  {
-    Expandable~commands~must~have~a~final~mandatory~argument~
-    (or~no~arguments~at~all).~You~cannot~have~a~terminal~optional~
-    argument~with~expandable~commands.
-  }
-\__kernel_msg_new:nnnn { xparse } { inconsistent-long }
-  { Inconsistent~long~arguments~for~expandable~command~'#1'. }
-  {
-    The~arguments~for~an~expandable~command~must~not~involve~short~
-    arguments~after~long~arguments.~You~have~tried~to~mix~the~two~types.
-  }
-\__kernel_msg_new:nnnn { xparse } { invalid-command-arg }
-  { Argument~type~'#2'~not~available~for~#1. }
-  {
-    The~letter~'#2'~can~only~be~used~in~environment~argument~
-    specifications,~not~for~commands.
-    \\ \\
-    LaTeX~will~ignore~this~entire~definition.
-  }
-\__kernel_msg_new:nnnn { xparse } { invalid-expandable-argument-type }
-  { Argument~type~'#2'~not~available~for~expandable~command~'#1'. }
-  {
-    The~letter~'#2'~specifies~an~argument~type~which~cannot~be~used~
-    in~an~expandable~command.
-    \c__xparse_ignore_def_tl
-  }
-\__kernel_msg_new:nnnn { xparse } { invalid-after-optional-expandably }
-  {
-    Argument~type~'#2'~not~available~after~optional~argument~
-    for~expandable~command~'#1'.
-  }
-  {
-    The~letter~'#2'~specifies~an~argument~type~which~cannot~be~used~
-    in~an~expandable~command~after~an~optional~argument.
-    \c__xparse_ignore_def_tl
-  }
-\__kernel_msg_new:nnnn { xparse } { non-trailing-obey-spaces }
-  { Prefix~'!'~used~before~mandatory~argument~'#2'~of~#1. }
-  {
-    The~prefix~'!'~can~only~apply~to~trailing~optional~arguments.
-    \c__xparse_ignore_def_tl
-  }
-\__kernel_msg_new:nnnn { xparse } { not-definable }
-  { First~argument~of~'#2'~must~be~a~command. }
-  {
-    The~first~argument~of~'#2'~should~be~the~document~command~that~will~
-    be~defined.~The~provided~argument~'#1'~is~a~character.~Perhaps~a~
-    backslash~is~missing?
-    \c__xparse_ignore_def_tl
-  }
-\__kernel_msg_new:nnnn { xparse } { not-one-token }
-  { First~argument~of~'#2'~must~be~a~command. }
-  {
-    The~first~argument~of~'#2'~should~be~the~document~command~that~will~
-    be~defined.~The~provided~argument~'#1'~contains~more~than~one~
-    token.~Perhaps~a~backslash~is~missing?
-    \c__xparse_ignore_def_tl
-  }
-\__kernel_msg_new:nnnn { xparse } { not-single-token }
-  {
-    Argument~delimiter~'#2'~for~the~#1~should~be~
-    a~single~non-space~token.
-  }
-  {
-    The~argument~specification~provided~was~not~valid:~in~a~place~
-    where~a~single~token~is~required,~LaTeX~found~'#2'.
-    \c__xparse_ignore_def_tl
-  }
-\__kernel_msg_new:nnnn { xparse } { forbidden-implicit-group-token }
-  { Argument~delimiter~'#2'~for~the~#1~is~not~allowed. }
-  {
-    The~argument~specification~provided~was~not~valid:~the~implicit~
-    #3-group~token~'#2'~is~not~allowed~as~an~argument~delimiter.
-    \c__xparse_ignore_def_tl
-  }
-\__kernel_msg_new:nnnn { xparse } { processor-in-expandable }
-  { Argument~processor~'>{#2}'~cannot~be~used~for~the~expandable~command~'#1'. }
-  {
-    The~argument~specification~for~#1~contains~a~processor~function:~
-    this~is~only~supported~for~standard~robust~commands.
-    \c__xparse_ignore_def_tl
-  }
-\__kernel_msg_new:nnnn { xparse } { too-many-arguments }
-  { Too~many~arguments~in~argument~specification~'#2'~of~#1. }
-  {
-    The~argument~specification~provided~has~more~than~9~arguments.~
-    This~cannot~be~implemented.
-    \c__xparse_ignore_def_tl
-  }
-\__kernel_msg_new:nnnn { xparse } { two-markers }
-  { Two~'#2'~apply~to~the~same~argument~in~argument~specification~of~#1. }
-  {
-    The~argument~specification~provided~has~two~markers~'#2'~applying~
-    to~the~same~argument;~these~are~redundant.
-  }
-\__kernel_msg_new:nnnn { xparse } { unknown-argument-type }
-  { Unknown~argument~type~'#2'~for~the~#1. }
-  {
-    The~letter~'#2'~does~not~specify~a~known~argument~type.
-    \c__xparse_ignore_def_tl
-  }
-\__kernel_msg_new:nnn { xparse } { if-boolean }
-  { Invalid~use~\iow_char:N\\IfBooleanTF~{#1} }
-\__kernel_msg_new:nnnn { xparse } { loop-in-defaults }
-  { Defaults~of~#1~have~circular~dependency. }
-  {
-    The~default~values~of~two~or~more~arguments~of~the~#1~
-    depend~on~each~other~in~a~way~that~cannot~be~resolved.
-  }
-\__kernel_msg_new:nnnn { xparse } { missing-required }
-  { Missing~required~argument~for~#1. }
-  {
-    The~current~#1~expects~an~argument~starting~with~'#2'.~
-    LaTeX~did~not~find~it,~and~will~insert~a~default~value~to~be~processed.
-  }
-\__kernel_msg_new:nnnn { xparse } { non-xparse }
-  { \str_uppercase:n #1~not~defined~using~xparse. }
-  {
-    You~have~asked~for~the~argument~specification~for~the~#1,~
-    but~this~was~not~defined~using~xparse.
-  }
-\__kernel_msg_new:nnnn { xparse } { split-excess-tokens }
-  { Too~many~'#1'~tokens~when~trying~to~split~argument. }
-  {
-    LaTeX~was~asked~to~split~the~input~'#3'~
-    at~each~occurrence~of~the~token~'#1',~up~to~a~maximum~of~#2~parts.~
-    There~were~too~many~'#1'~tokens.
-  }
-\__kernel_msg_new:nnnn { xparse } { unknown }
-  { Unknown~document~#1. }
-  {
-    You~have~asked~for~the~argument~specification~for~the~#1,~
-    but~it~is~not~defined.
-  }
-\__kernel_msg_new:nnnn { xparse } { verbatim-newline }
-  { Verbatim~argument~of~#1~ended~by~end~of~line. }
-  {
-    The~verbatim~argument~of~the~#1~cannot~contain~more~than~one~line,~
-    but~the~end~
-    of~the~current~line~has~been~reached.~You~may~have~forgotten~the~
-    closing~delimiter.
-    \\ \\
-    LaTeX~will~ignore~'#2'.
-  }
-\__kernel_msg_new:nnnn { xparse } { verbatim-tokenized }
-  { The~verbatim~#1~cannot~be~used~inside~an~argument. }
-  {
-    The~#1~takes~a~verbatim~argument.~
-    It~may~not~appear~within~the~argument~of~another~function.~
-    It~received~an~illegal~token \tl_if_empty:nF {#3} { ~'#3' } .
-    \\ \\
-    LaTeX~will~ignore~'#2'.
-  }
-\__kernel_msg_new:nnn { xparse } { define-command }
-  {
-    Defining~command~#1~
-    with~sig.~'#2'~\msg_line_context:.
-  }
-\__kernel_msg_new:nnn { xparse } { define-environment }
-  {
-    Defining~environment~'#1'~
-    with~sig.~'#2'~\msg_line_context:.
-  }
-\__kernel_msg_new:nnn { xparse } { redefine-command }
-  {
-    Redefining~command~#1~
-    with~sig.~'#2'~\msg_line_context:.
-  }
-\__kernel_msg_new:nnn { xparse } { redefine-environment }
-  {
-    Redefining~environment~'#1'~
-    with~sig.~'#2'~\msg_line_context:.
-  }
-\__kernel_msg_new:nnn { xparse } { optional-mandatory }
-  {
-    Since~the~mandatory~argument~'#1'~has~the~same~delimiter~'#2'~
-    as~a~previous~optional~argument,~it~will~not~be~possible~to~
-    omit~all~optional~arguments~when~calling~this~command.
-  }
-\__kernel_msg_new:nnn { xparse } { unsupported-let }
-  {
-    The~command~'#1'~was~undefined~but~not~the~associated~commands~
-    '#1~code'~and/or~'#1~defaults'.~Maybe~you~tried~using~
-    \iow_char:N\\let.~This~may~lead~to~an~infinite~loop.
-  }
-\cs_new_eq:NN \BooleanFalse \c_false_bool
-\cs_new_eq:NN \BooleanTrue  \c_true_bool
-\cs_new_protected:Npn \NewDocumentCommand #1#2#3
-  {
-    \__xparse_check_definable:nNT {#1} \NewDocumentCommand
-      {
-        \cs_if_exist:NTF #1
-          {
-            \__kernel_msg_error:nnxx { xparse } { command-already-defined }
-              { \use:nnn \token_to_str:N #1 { } }
-              { \token_to_str:N \NewDocumentCommand }
-          }
-          { \__xparse_declare_cmd:Nnn #1 {#2} {#3} }
-      }
-  }
-\cs_new_protected:Npn \RenewDocumentCommand #1#2#3
-  {
-    \__xparse_check_definable:nNT {#1} \RenewDocumentCommand
-      {
-        \cs_if_exist:NTF #1
-          { \__xparse_declare_cmd:Nnn #1 {#2} {#3} }
-          {
-            \__kernel_msg_error:nnxx { xparse } { command-not-yet-defined }
-              { \use:nnn \token_to_str:N #1 { } }
-              { \token_to_str:N \RenewDocumentCommand }
-          }
-      }
-  }
-\cs_new_protected:Npn \ProvideDocumentCommand #1#2#3
-  {
-    \__xparse_check_definable:nNT {#1} \ProvideDocumentCommand
-      { \cs_if_exist:NF #1 { \__xparse_declare_cmd:Nnn #1 {#2} {#3} } }
- }
-\cs_new_protected:Npn \DeclareDocumentCommand #1#2#3
-  {
-    \__xparse_check_definable:nNT {#1} \DeclareDocumentCommand
-      { \__xparse_declare_cmd:Nnn #1 {#2} {#3} }
-  }
-\cs_new_protected:Npn \NewDocumentEnvironment #1#2#3#4
-  {
-    \cs_if_exist:cTF {#1}
-      { \__kernel_msg_error:nnx { xparse } { environment-already-defined } {#1} }
-      { \__xparse_declare_env:nnnn {#1} {#2} {#3} {#4} }
-  }
-\cs_new_protected:Npn \RenewDocumentEnvironment #1#2#3#4
-  {
-    \cs_if_exist:cTF {#1}
-      { \__xparse_declare_env:nnnn {#1} {#2} {#3} {#4} }
-      { \__kernel_msg_error:nnx { xparse } { environment-not-yet-defined } {#1} }
-  }
-\cs_new_protected:Npn \ProvideDocumentEnvironment #1#2#3#4
-  { \cs_if_exist:cF {#1} { \__xparse_declare_env:nnnn {#1} {#2} {#3} {#4} } }
-\cs_new_protected:Npn \DeclareDocumentEnvironment #1#2#3#4
-  { \__xparse_declare_env:nnnn {#1} {#2} {#3} {#4} }
-\cs_new_protected:Npn \NewExpandableDocumentCommand #1#2#3
-  {
-    \__xparse_check_definable:nNT {#1} \NewExpandableDocumentCommand
-      {
-        \cs_if_exist:NTF #1
-          {
-            \__kernel_msg_error:nnxx { xparse } { command-already-defined }
-              { \use:nnn \token_to_str:N #1 { } }
-              { \token_to_str:N \NewExpandableDocumentCommand }
-          }
-          { \__xparse_declare_expandable_cmd:Nnn #1 {#2} {#3} }
-      }
-  }
-\cs_new_protected:Npn \RenewExpandableDocumentCommand #1#2#3
-  {
-    \__xparse_check_definable:nNT {#1} \RenewExpandableDocumentCommand
-      {
-        \cs_if_exist:NTF #1
-          { \__xparse_declare_expandable_cmd:Nnn #1 {#2} {#3} }
-          {
-            \__kernel_msg_error:nnxx { xparse } { command-not-yet-defined }
-              { \use:nnn \token_to_str:N #1 { } }
-              { \token_to_str:N \RenewExpandableDocumentCommand }
-          }
-      }
-  }
-\cs_new_protected:Npn \ProvideExpandableDocumentCommand #1#2#3
-  {
-    \__xparse_check_definable:nNT {#1} \ProvideExpandableDocumentCommand
-      {
-        \cs_if_exist:NF #1
-          { \__xparse_declare_expandable_cmd:Nnn #1 {#2} {#3} }
-      }
- }
-\cs_new_protected:Npn \DeclareExpandableDocumentCommand #1#2#3
-  {
-    \__xparse_check_definable:nNT {#1} \DeclareExpandableDocumentCommand
-      { \__xparse_declare_expandable_cmd:Nnn #1 {#2} {#3} }
-  }
-\cs_new:Npn \IfBooleanTF #1
-  {
-    \tl_if_single:nF {#1}
-      { \prg_break:n { \use:n } }
-    \tl_if_single_token:nF #1
-      { \prg_break:n { \use:n } }
-    \token_if_eq_meaning:NNT #1 \c_true_bool
-      { \prg_break:n { \use_ii:nnn } }
-    \token_if_eq_meaning:NNT #1 \c_false_bool
-      { \prg_break:n { \use_iii:nnn } }
-    \prg_break:n { \use:n }
-    \prg_break_point:
-    {
-      \__kernel_msg_expandable_error:nnn { xparse } { if-boolean } {#1}
-      \use_ii:nn
-    }
-  }
-\cs_new:Npn \IfBooleanT #1#2 { \IfBooleanTF {#1} {#2} { } }
-\cs_new:Npn \IfBooleanF #1 { \IfBooleanTF {#1} { } }
-\cs_new_eq:NN \IfNoValueF  \tl_if_novalue:nF
-\cs_new_eq:NN \IfNoValueT  \tl_if_novalue:nT
-\cs_new_eq:NN \IfNoValueTF \tl_if_novalue:nTF
-\cs_new:Npn \IfValueF { \tl_if_novalue:nT }
-\cs_new:Npn \IfValueT { \tl_if_novalue:nF }
-\cs_new:Npn \IfValueTF #1#2#3 { \tl_if_novalue:nTF {#1} {#3} {#2} }
-\tl_new:N \ProcessedArgument
-\cs_new_eq:NN \ReverseBoolean \__xparse_bool_reverse:N
-\cs_new_eq:NN \SplitArgument  \__xparse_split_argument:nnn
-\cs_new_eq:NN \SplitList      \__xparse_split_list:nn
-\cs_new_eq:NN \TrimSpaces     \__xparse_trim_spaces:n
-\cs_new_eq:NN \ProcessList \tl_map_function:nN
-\cs_new_protected:Npn \GetDocumentCommandArgSpec #1
-  {
-    \__xparse_check_definable:nNT {#1} \GetDocumentCommandArgSpec
-      { \__xparse_get_arg_spec:N #1 }
-  }
-\cs_new_eq:NN \GetDocumentEnvironmentArgSpec \__xparse_get_arg_spec:n
-\cs_new_protected:Npn \ShowDocumentCommandArgSpec #1
-  {
-    \__xparse_check_definable:nNT {#1} \ShowDocumentCommandArgSpec
-      { \__xparse_show_arg_spec:N #1 }
-  }
-\cs_new_eq:NN \ShowDocumentEnvironmentArgSpec \__xparse_show_arg_spec:n
 %% 
 %%
 %% End of file `xparse.sty'.

Modified: trunk/Master/texmf-dist/tex/latex/l3packages/xtemplate/xtemplate.sty
===================================================================
--- trunk/Master/texmf-dist/tex/latex/l3packages/xtemplate/xtemplate.sty	2020-05-14 21:13:59 UTC (rev 55141)
+++ trunk/Master/texmf-dist/tex/latex/l3packages/xtemplate/xtemplate.sty	2020-05-14 21:16:02 UTC (rev 55142)
@@ -32,7 +32,7 @@
       }%
     \endinput
   }
-\ProvidesExplPackage{xtemplate}{2020-03-06}{}
+\ProvidesExplPackage{xtemplate}{2020-05-14}{}
   {L3 Experimental prototype document functions}
 \tl_const:Nn \c__xtemplate_code_root_tl      { template~code~>~ }
 \tl_const:Nn \c__xtemplate_defaults_root_tl  { template~defaults~>~ }
@@ -68,6 +68,10 @@
 \muskip_new:N \l__xtemplate_tmp_muskip
 \skip_new:N \l__xtemplate_tmp_skip
 \tl_new:N \l__xtemplate_tmp_tl
+\scan_new:N \s__xtemplate_mark
+\scan_new:N \s__xtemplate_stop
+\quark_new:N \q__xtemplate_nil
+\__kernel_quark_new_conditional:Nn \__xtemplate_quark_if_nil:N { F }
 \cs_generate_variant:Nn \prop_get:NnNTF { No }
 \cs_generate_variant:Nn \prop_get:NnNT  { No }
 \cs_generate_variant:Nn \prop_get:NnNF  { No }
@@ -330,7 +334,7 @@
           {
             \tl_clear:N \l__xtemplate_key_name_tl
             \exp_after:wN \__xtemplate_split_keytype_aux:w
-              \l__xtemplate_tmp_tl \q_stop
+              \l__xtemplate_tmp_tl \s__xtemplate_stop
           }
       }
       {
@@ -341,7 +345,7 @@
 \use:x
   {
     \cs_new_protected:Npn \exp_not:N \__xtemplate_split_keytype_aux:w
-      ##1 \token_to_str:N : ##2 \exp_not:N \q_stop
+      ##1 \token_to_str:N : ##2 \s__xtemplate_stop
       {
         \tl_put_right:Nx \exp_not:N \l__xtemplate_key_name_tl
           { \exp_not:N \tl_to_str:n {##1} }
@@ -349,7 +353,7 @@
           {
             \tl_put_right:Nn \exp_not:N \l__xtemplate_key_name_tl
               { \token_to_str:N : }
-            \exp_not:N \__xtemplate_split_keytype_aux:w ##2 \exp_not:N \q_stop
+            \exp_not:N \__xtemplate_split_keytype_aux:w ##2 \s__xtemplate_stop
           }
           {
             \exp_not:N \tl_if_empty:NTF \exp_not:N \l__xtemplate_key_name_tl
@@ -370,7 +374,7 @@
         \tl_if_in:nnT {#1} {##1}
           {
             \cs_set:Npn \__xtemplate_split_keytype_arg_aux:w
-              ####1 ##1 ####2 \q_stop
+              ####1 ##1 ####2 \s__xtemplate_stop
               {
                 \tl_if_empty:nT {####1}
                   {
@@ -379,7 +383,7 @@
                     \seq_map_break:
                   }
               }
-            \__xtemplate_split_keytype_arg_aux:w #1 \q_stop
+            \__xtemplate_split_keytype_arg_aux:w #1 \s__xtemplate_stop
           }
       }
     \seq_map_function:NN \c__xtemplate_keytypes_arg_seq
@@ -387,7 +391,7 @@
   }
 \cs_generate_variant:Nn \__xtemplate_split_keytype_arg:n { o }
 \cs_new:Npn \__xtemplate_split_keytype_arg_aux:n #1 { }
-\cs_new:Npn \__xtemplate_split_keytype_arg_aux:w #1 \q_stop { }
+\cs_new:Npn \__xtemplate_split_keytype_arg_aux:w #1 \s__xtemplate_stop { }
 \cs_new_protected:Npn \__xtemplate_store_value_boolean:n #1
   {
     \__xtemplate_if_eval_now:nTF {#1}
@@ -531,7 +535,7 @@
               }
               {
                 \tl_if_in:nnTF {#1} { global }
-                  { \__xtemplate_parse_vars_elt_aux:w #1 \q_stop }
+                  { \__xtemplate_parse_vars_elt_aux:w #1 \s__xtemplate_stop }
                   {
                     \msg_error:nnx { xtemplate } { bad-variable }
                       { \tl_to_str:n {#1} }
@@ -540,7 +544,7 @@
           }
       }
   }
-\cs_new_protected:Npn \__xtemplate_parse_vars_elt_aux:w #1 global #2 \q_stop
+\cs_new_protected:Npn \__xtemplate_parse_vars_elt_aux:w #1 global #2 \s__xtemplate_stop
   {
     \tl_if_empty:nTF {#1}
       {
@@ -812,10 +816,10 @@
     \bool_set_false:N \l__xtemplate_global_bool
     \tl_if_in:onT \l__xtemplate_var_tl { global }
       {
-        \exp_after:wN \__xtemplate_find_global_aux:w \l__xtemplate_var_tl \q_stop
+        \exp_after:wN \__xtemplate_find_global_aux:w \l__xtemplate_var_tl \s__xtemplate_stop
       }
   }
-\cs_new_protected:Npn \__xtemplate_find_global_aux:w  #1 global #2 \q_stop
+\cs_new_protected:Npn \__xtemplate_find_global_aux:w  #1 global #2 \s__xtemplate_stop
   {
     \tl_set:Nn \l__xtemplate_var_tl {#2}
     \bool_set_true:N \l__xtemplate_global_bool
@@ -1011,7 +1015,7 @@
       \l__xtemplate_value_tl
       {
         \exp_after:wN \__xtemplate_key_to_value_auxii:w \l__xtemplate_value_tl
-          \q_mark global \q_nil \q_stop
+          \s__xtemplate_mark global \q__xtemplate_nil \s__xtemplate_stop
       }
       {
         \msg_error:nnx { xtemplate } { unknown-attribute }
@@ -1018,9 +1022,9 @@
           { \l__xtemplate_tmp_tl }
       }
   }
-\cs_new_protected:Npn \__xtemplate_key_to_value_auxii:w #1 global #2#3 \q_stop
+\cs_new_protected:Npn \__xtemplate_key_to_value_auxii:w #1 global #2#3 \s__xtemplate_stop
   {
-    \quark_if_nil:NF #2
+    \__xtemplate_quark_if_nil:NF #2
       { \tl_set:Nn \l__xtemplate_value_tl {#2} }
   }
 \cs_new_protected:Npn \__xtemplate_use_instance:nn #1#2



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