l3backend (2jul19)

git-svn-id: svn://tug.org/texlive/trunk@51533 c570f23f-e606-0410-a88d-b1316a301751

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diff --git a/Master/texmf-dist/doc/latex/l3backend/CHANGELOG.md b/Master/texmf-dist/doc/latex/l3backend/CHANGELOG.md
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+# Changelog
+All notable changes to the `l3backend` bundle will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+this project uses date-based 'snapshot' version identifiers.
+
+## [Unreleased]
+
+## [2019-07-01]
+
+### Added
+
+- Driver support for anonymous objects
+
+### Changed
+
+- Moved backend code to separate release module `l3backend`
+- Include `l3backend` in file names
+- Moved backend code to internal for each 'parent' module
+
+[Unreleased]: https://github.com/latex3/latex3/compare/2019-07-01...HEAD
+[2019-07-01]: https://github.com/latex3/latex3/compare/2019-05-28...2019-07-01
diff --git a/Master/texmf-dist/doc/latex/l3backend/README.md b/Master/texmf-dist/doc/latex/l3backend/README.md
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+LaTeX3 Backend Drivers
+======================
+
+Release 2019-07-01
+
+This package forms parts of `expl3`, and contains the code used to interface
+with backends (drivers) across the `expl3` codebase. The functions here are
+defined differently depending on the engine in use. As such, these are
+distributed separately from `l3kernel` to allow this code to be updated
+on an independent schedule.
+
+-----
+
+<p>Copyright (C) 2019 The LaTeX3 Project <br />
+<a href="http://latex-project.org/">http://latex-project.org/</a> <br />
+All rights reserved.</p>
diff --git a/Master/texmf-dist/doc/latex/l3backend/l3backend-code.pdf b/Master/texmf-dist/doc/latex/l3backend/l3backend-code.pdf
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diff --git a/Master/texmf-dist/doc/latex/l3backend/l3backend-code.tex b/Master/texmf-dist/doc/latex/l3backend/l3backend-code.tex
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+\iffalse meta-comment
+
+File: l3backend-code.tex
+
+Copyright (C) 2019 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
+
+   https://www.latex-project.org/lppl.txt
+
+This file is part of the "l3backend bundle" (The Work in LPPL)
+and all files in that bundle must be distributed together.
+
+The released version of this bundle is available from CTAN.
+
+-----------------------------------------------------------------------
+
+The development version of the bundle can be found at
+
+   https://github.com/latex3/latex3
+
+for those people who are interested.
+
+\fi
+
+\documentclass{l3doc}
+
+\begin{document}
+
+\makeatletter
+\let\DelayPrintIndex\PrintIndex
+\let\PrintIndex\@empty
+\makeatother
+
+\ExplSyntaxOn
+\clist_gput_right:Nn \g_docinput_clist
+  {
+    l3backend-basics.dtx   ,
+    l3backend-box.dtx      ,
+    l3backend-color.dtx    ,
+    l3backend-draw.dtx     ,
+    l3backend-graphics.dtx ,
+    l3backend-pdf.dtx
+  }
+\ExplSyntaxOff
+
+\part{Implementation}
+
+\def\maketitle{}
+\EnableImplementation
+\DisableDocumentation
+\DocInputAgain
+
+\clearpage
+
+\DelayPrintIndex
+
+\end{document}