expl3 1407 (9jun09)

git-svn-id: svn://tug.org/texlive/trunk@13686 c570f23f-e606-0410-a88d-b1316a301751

7 files changed, 456 insertions, 57 deletions

diff --git a/Master/texmf-dist/doc/latex/expl3/readme.txt b/Master/texmf-dist/doc/latex/expl3/README
index 81202555eaa..67059036d41 100644
--- a/Master/texmf-dist/doc/latex/expl3/readme.txt
+++ b/Master/texmf-dist/doc/latex/expl3/README
@@ -1,9 +1,8 @@
 
-   Experimental Packages Demonstrating
-   A Possible LaTeX3 Programming Convention
-   ========================================
+   An Experimental LaTeX3 Programming Convention
+   =============================================
 
-   2008/08/05
+   2009/06/02
 
 
 WHERE TO GET IT
@@ -29,13 +28,10 @@ This API provides the foundation on which the LaTeX3 kernel and other
 advanced extensions are built. Special care has been taken so that
 they can be used within a LaTeX2e context as regular packages.
 
-While the existing code is approaching a stable state, we cannot
-guarantee that names of packages or commands they define will not
-change. This is also related to the history of the code: It has been
-developed over time and has been used in previous versions for
-prototypes implementations, experiments, etc. It may therefore
-occasionally contain references to parts that are at present not
-distributed.
+While expl3 is still experimental, the bundle is now regarded as
+broadly stable. The syntax conventions and functions provided are now
+ready for wider use. There may still be changes to some functions, but
+these will be minor when compared to the scope of expl3.
 
 
 THE GUILTY PERSONS
@@ -43,7 +39,8 @@ THE GUILTY PERSONS
 
    Frank Mittelbach, Denys Duchier, Johannes Braams, Michael Downes,
    David Carlisle, Alan Jeffrey, Chris Rowley, Rainer Schoepf 
-   Javier Bezos, Morten Hoegholm, Thomas Lotze
+   Javier Bezos, Morten Hoegholm, Thomas Lotze, Will Robertson,
+   Joseph Wright
 
 
 DISCUSSION
@@ -117,11 +114,11 @@ l3toks
 
 TeX's token registers.  (Can be compiled with checking enabled)
 
-l3tlp
+l3tl
 =====
 
-Token List Pointers. A basic LaTeX3 datatype for storing token lists.
-(These are essentially macros with no arguments.) The module also
+Token Lists and Token List variables, a basic LaTeX3 datatype for storing 
+token lists. (These are essentially macros with no arguments.) The module also
 provides functions for arbitrary token lists. (Package can be compiled
 with checking enabled.)
 
@@ -208,11 +205,10 @@ Module providing the low-level interface for cross references. This
 module also contains a test file which is generated along with the
 package.
 
-l3messages
+l3msg
 =====
 
-Module providing a new mechanism to provide longer warning and error
-messages based on storing the messages in external files.
+Module providing a new mechanism to provide user messages.
 
 l3calc
 =====
@@ -253,11 +249,21 @@ l3final.dtx
 This file is reserved for the last minute coding for producing a
 format (such as the dump instruction).
 
+l3format.ins
+============
+
+Process with plain TeX or LaTeX2e to generate the experimental
+format file lbase.ltx and its companion lbase.ini.
+The run pdfetex --ini "*lbase.ini" to produce the experimental
+format. 
+
+=====================================================================
+
 source3.tex
 ===========
 
-Run this file with pdfLaTeX in extended mode:
-pdflatex "*source3.tex" to produce the documentation.
+Run this file with pdfLaTeX:
+pdflatex source3 to produce the documentation.
 Doing this will produce three extra files (source3.ist, l3doc.cfg and
 l3full.cfg). The first of these is a style file for makeindex; the
 others or configuration files for the documentation class.
@@ -269,47 +275,15 @@ After that run makeindex to produce the index, like so:
 makeindex -s source3.ist source3
 and rerun LaTeX.
 
-l3format.ins
-============
-
-Process with plain TeX or LaTeX2e to generate the experimental
-format file lbase.ltx and its companion lbase.ini.
-The run pdfetex --ini "*lbase.ini" to produce the experimental
-format. 
-
-=====================================================================
-
-Test Files
-==========
-
-Two test files show the expansion module at work.
-
-test1.tex
+expl3.dtx
 =========
 
-Test document showing the expansion module at work.
-
-test2.tex
-=========
-
-The same test as the file test1, but this time the l3names package is
-loaded with [removeoldnames]. This is useful for testing, but as it
-breaks all LaTeX2 code, it is not so useful for documents.  (For
-example {document} would generate an error.)  In this mode
-\RequirePackage may be used to load further packages, as demonstrated
-in this file, but any other LaTeX2 command is likely to fail.
-
-The option removeoldnames has been disabled temporarily and so this
-test file is of limited use.
-
-test3.tex
-=========
-
-This tests the io and precomp modules.
-
+This provides a single "load point" for the entire expl3 bundle.
+Running pdflatex expl3.dtx will produce a general overview document
+explaining the basics of expl3 programming.
 
 =====================================================================
 
---- Copyright 1998 -- 2008
+--- Copyright 1998 -- 2009
     The LaTeX3 Project.  All rights reserved ---
 
diff --git a/Master/texmf-dist/doc/latex/expl3/expl3.pdf b/Master/texmf-dist/doc/latex/expl3/expl3.pdf
index 189b52ee082..0343e931674 100644
--- a/Master/texmf-dist/doc/latex/expl3/expl3.pdf
+++ b/Master/texmf-dist/doc/latex/expl3/expl3.pdf
diff --git a/Master/texmf-dist/doc/latex/expl3/l32eproc.pdf b/Master/texmf-dist/doc/latex/expl3/l32eproc.pdf
deleted file mode 100644
index 2ccd85c6f1b..00000000000
--- a/Master/texmf-dist/doc/latex/expl3/l32eproc.pdf
+++ /dev/null
diff --git a/Master/texmf-dist/doc/latex/expl3/l3obsolete.txt b/Master/texmf-dist/doc/latex/expl3/l3obsolete.txt
new file mode 100644
index 00000000000..5c1073fe333
--- /dev/null
+++ b/Master/texmf-dist/doc/latex/expl3/l3obsolete.txt
@@ -0,0 +1,9 @@
+l3obsolete
+==========
+
+This file lists expl3 commands that have been removed or 
+replaced with respect to the version on the TeX Live 2009 disk.
+
+==========
+
+Nothing yet!
\ No newline at end of file
diff --git a/Master/texmf-dist/doc/latex/expl3/l3obsolete2008.txt b/Master/texmf-dist/doc/latex/expl3/l3obsolete2008.txt
new file mode 100644
index 00000000000..20b83ff0bcb
--- /dev/null
+++ b/Master/texmf-dist/doc/latex/expl3/l3obsolete2008.txt
@@ -0,0 +1,296 @@
+l3obsolete2008
+==============
+
+This file lists expl3 commands that have been removed or 
+replaced with respect to the version on the TeX Live 2008 disk.
+
+==========
+
+\CodeStart  ->  \ExplSyntaxOn
+\CodeStop   ->  \ExplSyntaxOff
+\NamesStart ->  \ExplSyntaxNamesOn
+\NamesStop  ->  \ExplSyntaxNamesOff
+
+\cs_use:c  ->  \use:c
+\use:cc    ->  \exp_args:cc
+
+\use_arg_i:n     ->  \use:n
+\use_arg_i:nn    ->  \use_i:nn
+\use_arg_i:nnn   ->  \use_i:nnn
+\use_arg_i:nnnn  ->  \use_i:nnnn
+\use_arg_i_ii:nn ->  \use:nn
+
+\use_arg_i_after_else:nw         ->  \use_i_after_else:nw 
+\use_arg_i_after_fi:nw           ->  \use_i_after_fi:nw 
+\use_arg_i_after_or:nw           ->  \use_i_after_or:nw  
+\use_arg_i_after_orelse:nw       ->  \use_i_after_orelse:nw  
+\use_arg_i_delimit_by_q_nil:nw   ->  \use_i_delimit_by_q_nil:nw
+\use_arg_i_delimit_by_q_stop:nw  ->  \use_i_delimit_by_q_stop:nw
+\use_arg_i_delimit_by_q_recursion_stop:nw -> 
+    \use_i_delimit_by_q_recursion_stop:nw
+
+\use_arg_ii:nn    ->  \use_ii:nn
+\use_arg_ii:nnn   ->  \use_ii:nnn
+\use_arg_ii:nnnn  ->  \use_ii:nnnn
+\use_arg_iii:nnn  ->  \use_iii:nnn
+\use_arg_iii:nnnn ->  \use_iii:nnnn
+\use_arg_iv:nnnn  ->  \use_iv:nnnn
+
+\cs_free:NTF  ->  \cs_if_free:NTF
+\cs_free:NT   ->  \cs_if_free:NT
+\cs_free:NF   ->  \cs_if_free:NF
+\cs_free:cTF  ->  \cs_if_free:cTF
+\cs_free:cT   ->  \cs_if_free:cT
+\cs_free:cF   ->  \cs_if_free:cF
+
+\cs_really_free:cTF  ->  \cs_if_really_free:cTF
+\cs_really_free:cT   ->  \cs_if_really_free:cT
+\cs_really_free:cF   ->  \cs_if_really_free:cF
+
+\cs_if_eq_p:NN   ->  \cs_if_eq_name_p:NN
+\chk_new_cs:N    ->  \chk_if_new_cs:N
+\chk_exist_cs:N  ->  \chk_if_exist_cs:N
+\chk_exist_cs:c  ->  \chk_if_exist_cs:c
+
+\cmd_declare:Nnn     ->  Undefined. Use \def:NNn instead.
+\cmd_arg_list_build  ->  Undefined (auxiliary function used for the above).
+
+\tl_put_left:cx     ->  Undefined. Define your own, if you need it.
+\tl_gput_left:cx    ->  Undefined. Ditto.
+\tl_put_right:cc    ->  Undefined. Ditto.
+\seq_gput_right:cc   ->  Undefined. Ditto.
+\clist_gput_right:cc ->  Undefined. Ditto.
+
+\token_to_string:N  ->  \token_to_str:N
+
+
+
+
+
+
+
+\let:NwN -> \cs_set_eq:NwN
+
+\def:No ->  -> \cs_set_nopar:No
+\gdef:No -> \cs_gset_nopar:No
+
+
+\def:Npn -> \cs_set_nopar:Npn
+\def:Npx -> \cs_set_nopar:Npx
+\def:cpn -> \cs_set_nopar:cpn
+\def:cpx -> \cs_set_nopar:cpx
+
+\def:NNn -> \cs_set_nopar:NNn
+\def:NNx -> \cs_set_nopar:NNx
+\def:cNn -> \cs_set_nopar:cNn
+\def:cNx -> \cs_set_nopar:cNx
+
+\def_protected:Npn -> \cs_set_protected_nopar:Npn
+\def_protected:Npx -> \cs_set_protected_nopar:Npx
+\def_protected:cpn -> \cs_set_protected_nopar:cpn
+\def_protected:cpx -> \cs_set_protected_nopar:cpx
+
+\def_protected:NNn -> \cs_set_protected_nopar:NNn
+\def_protected:NNx -> \cs_set_protected_nopar:NNx
+\def_protected:cNn -> \cs_set_protected_nopar:cNn
+\def_protected:cNx -> \cs_set_protected_nopar:cNx
+
+\def_protected_long:Npn -> \cs_set_protected:Npn
+\def_protected_long:Npx -> \cs_set_protected:Npx
+\def_protected_long:cpn -> \cs_set_protected:cpn
+\def_protected_long:cpx -> \cs_set_protected:cpx
+
+\def_protected_long:NNn -> \cs_set_protected:NNn
+\def_protected_long:NNx -> \cs_set_protected:NNx
+\def_protected_long:cNn -> \cs_set_protected:cNn
+\def_protected_long:cNx -> \cs_set_protected:cNx
+
+\def_new:Npn -> \cs_new_nopar:Npn
+\def_new:Npx -> \cs_new_nopar:Npx
+\def_new:cpn -> \cs_new_nopar:cpn
+\def_new:cpx -> \cs_new_nopar:cpx
+
+\def_new:NNn -> \cs_new_nopar:NNn
+\def_new:NNx -> \cs_new_nopar:NNx
+\def_new:cNn -> \cs_new_nopar:cNn
+\def_new:cNx -> \cs_new_nopar:cNx
+
+\def_protected_new:Npn -> \cs_new_protected_nopar:Npn
+\def_protected_new:Npx -> \cs_new_protected_nopar:Npx
+\def_protected_new:cpn -> \cs_new_protected_nopar:cpn
+\def_protected_new:cpx -> \cs_new_protected_nopar:cpx
+
+\def_protected_new:NNn -> \cs_new_protected_nopar:NNn
+\def_protected_new:NNx -> \cs_new_protected_nopar:NNx
+\def_protected_new:cNn -> \cs_new_protected_nopar:cNn
+\def_protected_new:cNx -> \cs_new_protected_nopar:cNx
+
+\def_protected_long_new:Npn -> \cs_new_protected:Npn
+\def_protected_long_new:Npx -> \cs_new_protected:Npx
+\def_protected_long_new:cpn -> \cs_new_protected:cpn
+\def_protected_long_new:cpx -> \cs_new_protected:cpx
+
+\def_protected_long_new:NNn -> \cs_new_protected:NNn
+\def_protected_long_new:NNx -> \cs_new_protected:NNx
+\def_protected_long_new:cNn -> \cs_new_protected:cNn
+\def_protected_long_new:cNx -> \cs_new_protected:cNx
+
+\def_long:Npn -> \cs_set:Npn
+\def_long:Npx -> \cs_set:Npx
+\def_long:cpn -> \cs_set:cpn
+\def_long:cpx -> \cs_set:cpx
+
+\def_long:NNn -> \cs_set:NNn
+\def_long:NNx -> \cs_set:NNx
+\def_long:cNn -> \cs_set:cNn
+\def_long:cNx -> \cs_set:cNx
+
+\def_long_new:Npn -> \cs_new:Npn
+\def_long_new:Npx -> \cs_new:Npx
+\def_long_new:cpn -> \cs_new:cpn
+\def_long_new:cpx -> \cs_new:cpx
+
+\def_long_new:NNn -> \cs_new:NNn
+\def_long_new:NNx -> \cs_new:NNx
+\def_long_new:cNn -> \cs_new:cNn
+\def_long_new:cNx -> \cs_new:cNx
+
+
+\gdef:Npn -> \cs_gset_nopar:Npn
+\gdef:Npx -> \cs_gset_nopar:Npx
+\gdef:cpn -> \cs_gset_nopar:cpn
+\gdef:cpx -> \cs_gset_nopar:cpx
+
+\gdef:NNn -> \cs_gset_nopar:NNn
+\gdef:NNx -> \cs_gset_nopar:NNx
+\gdef:cNn -> \cs_gset_nopar:cNn
+\gdef:cNx -> \cs_gset_nopar:cNx
+
+\gdef_protected:Npn -> \cs_gset_protected_nopar:Npn
+\gdef_protected:Npx -> \cs_gset_protected_nopar:Npx
+\gdef_protected:cpn -> \cs_gset_protected_nopar:cpn
+\gdef_protected:cpx -> \cs_gset_protected_nopar:cpx
+
+\gdef_protected:NNn -> \cs_gset_protected_nopar:NNn
+\gdef_protected:NNx -> \cs_gset_protected_nopar:NNx
+\gdef_protected:cNn -> \cs_gset_protected_nopar:cNn
+\gdef_protected:cNx -> \cs_gset_protected_nopar:cNx
+
+\gdef_protected_long:Npn -> \cs_gset_protected:Npn
+\gdef_protected_long:Npx -> \cs_gset_protected:Npx
+\gdef_protected_long:cpn -> \cs_gset_protected:cpn
+\gdef_protected_long:cpx -> \cs_gset_protected:cpx
+
+\gdef_protected_long:NNn -> \cs_gset_protected:NNn
+\gdef_protected_long:NNx -> \cs_gset_protected:NNx
+\gdef_protected_long:cNn -> \cs_gset_protected:cNn
+\gdef_protected_long:cNx -> \cs_gset_protected:cNx
+
+\gdef_protected_long_new:Npn -> \cs_gnew_protected:Npn
+\gdef_protected_long_new:Npx -> \cs_gnew_protected:Npx
+\gdef_protected_long_new:cpn -> \cs_gnew_protected:cpn
+\gdef_protected_long_new:cpx -> \cs_gnew_protected:cpx
+
+\gdef_protected_long_new:NNn -> \cs_gnew_protected:NNn
+\gdef_protected_long_new:NNx -> \cs_gnew_protected:NNx
+\gdef_protected_long_new:cNn -> \cs_gnew_protected:cNn
+\gdef_protected_long_new:cNx -> \cs_gnew_protected:cNx
+
+\gdef_long:Npn -> \cs_gset:Npn
+\gdef_long:Npx -> \cs_gset:Npx
+\gdef_long:cpn -> \cs_gset:cpn
+\gdef_long:cpx -> \cs_gset:cpx
+
+\gdef_long:NNn -> \cs_gset:NNn
+\gdef_long:NNx -> \cs_gset:NNx
+\gdef_long:cNn -> \cs_gset:cNn
+\gdef_long:cNx -> \cs_gset:cNx
+
+\gdef_new:Npn -> \cs_gnew_nopar:Npn
+\gdef_new:Npx -> \cs_gnew_nopar:Npx
+\gdef_new:cpn -> \cs_gnew_nopar:cpn
+\gdef_new:cpx -> \cs_gnew_nopar:cpx
+
+\gdef_new:NNn -> \cs_gnew_nopar:NNn
+\gdef_new:NNx -> \cs_gnew_nopar:NNx
+\gdef_new:cNn -> \cs_gnew_nopar:cNn
+\gdef_new:cNx -> \cs_gnew_nopar:cNx
+
+\gdef_protected_new:Npn -> \cs_gnew_protected_nopar:Npn
+\gdef_protected_new:Npx -> \cs_gnew_protected_nopar:Npx
+\gdef_protected_new:cpn -> \cs_gnew_protected_nopar:cpn
+\gdef_protected_new:cpx -> \cs_gnew_protected_nopar:cpx
+
+\gdef_protected_new:NNn -> \cs_gnew_protected_nopar:NNn
+\gdef_protected_new:NNx -> \cs_gnew_protected_nopar:NNx
+\gdef_protected_new:cNn -> \cs_gnew_protected_nopar:cNn
+\gdef_protected_new:cNx -> \cs_gnew_protected_nopar:cNx
+
+\gdef_long_new:Npn -> \cs_gnew:Npn
+\gdef_long_new:Npx -> \cs_gnew:Npx
+\gdef_long_new:cpn -> \cs_gnew:cpn
+\gdef_long_new:cpx -> \cs_gnew:cpx
+
+\gdef_long_new:NNn -> \cs_gnew:NNn
+\gdef_long_new:NNx -> \cs_gnew:NNx
+\gdef_long_new:cNn -> \cs_gnew:cNn
+\gdef_long_new:cNx -> \cs_gnew:cNx
+
+\let:NN       ->  \cs_set_eq:NN
+\let:Nc       ->  \cs_set_eq:Nc
+\let:cN       ->  \cs_set_eq:cN
+\let:cc       ->  \cs_set_eq:cc
+
+\glet:NN      ->  \cs_gset_eq:NN
+\glet:Nc      ->  \cs_gset_eq:Nc
+\glet:cN      ->  \cs_gset_eq:cN
+\glet:cc      ->  \cs_gset_eq:cc
+
+\let_new:NN   ->      \cs_new_eq:NN
+\let_new:Nc   ->      \cs_new_eq:Nc
+\let_new:cN   ->      \cs_new_eq:cN
+\let_new:cc   ->      \cs_new_eq:cc
+
+\glet_new:NN  ->      \cs_gnew_eq:NN
+\glet_new:Nc  ->      \cs_gnew_eq:Nc
+\glet_new:cN  ->      \cs_gnew_eq:cN
+\glet_new:cc  ->      \cs_gnew_eq:cc
+
+
+
+
+
+
+
+%% Copyright (C) 1990-2009 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 ``expl3 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
+%%
+%%    http://www.latex-project.org/svnroot/experimental/trunk/
+%%
+%% for those people who are interested.
+%%
+%%%%%%%%%%%
+%% NOTE: %%
+%%%%%%%%%%%
+%%
+%%   Snapshots taken from the repository represent work in progress and may
+%%   not work or may contain conflicting material!  We therefore ask
+%%   people _not_ to put them into distributions, archives, etc. without
+%%   prior consultation with the LaTeX Project Team.
+%%
+%% -----------------------------------------------------------------------
\ No newline at end of file
diff --git a/Master/texmf-dist/doc/latex/expl3/readme-dev.txt b/Master/texmf-dist/doc/latex/expl3/readme-dev.txt
new file mode 100644
index 00000000000..bae4259fe22
--- /dev/null
+++ b/Master/texmf-dist/doc/latex/expl3/readme-dev.txt
@@ -0,0 +1,120 @@
+
+   The EXPL3 bundle for LaTeX3 Programming
+   =======================================
+
+GETTING STARTED for developers
+------------------------------
+
+Welcome!
+This is a short guide to how the expl3 bundle is set up,
+and how you can get started programming with and
+contributing to it.
+
+First, some signposts:
+Email discussion list     <http://news.gmane.org/gmane.comp.tex.latex.latex3>
+SVN repository     <http://www.latex-project.org/svnroot/experimental/trunk/>
+SVN repository RRS feed          <http://www.latex-project.org/latex3svn.rss>
+
+Those interested in receiving emails containing the diff
+of every commit to the repository should ask on the discussion list.
+
+For more information, please look in the official README 
+and in the documentation expl3.pdf.
+
+
+INSTALLATION
+------------
+
+When you pull down the SVN repository, you'll generally
+want two things: the actual packages files so you can
+use the `expl3` bundle, and the documentation.
+
+## Obtaining the code in the SVN repository
+
+Execute something like this:
+
+    mkdir l3svn
+    svn checkout http://www.latex-project.org/svnroot/experimental/trunk/ l3svn
+
+This will give you both the xpackages and the expl3 bundle 
+contained within the `l3in2e/` directory, plus a few extras. 
+This readme only concerns the expl3 bundle.
+
+
+## Package files
+
+Install `expl3` in your local texmf directory with
+
+   make localinstall
+
+The installation directory is detected automatically,
+and in a normal TeXLive distribution will be used
+in preference to any existing `expl3` code directory.
+(I.e., after the above command your regular documents
+will use the new versions of the modules.)
+
+
+## Documentation
+
+For an individual module, generate the documentation with
+
+    make doc F=<module>
+    
+For example, `make doc F=l3quark`. This will produce 
+`l3quark.pdf`, which includes the documentation for that 
+module and its implementation source code.
+
+To generate the complete reference documentation for
+the `expl3` bundle, source3.pdf:
+
+    make sourcedoc
+  
+Note that source3.pdf does not include the modules'
+implementation source code; therefore, source3.pdf is a
+rough subset (plus index) of the complete set of typeset 
+module PDFs.
+
+To generate `source3.pdf` and the documentation for 
+each module, run
+
+    make alldoc
+
+
+HACKING
+-------
+
+There are two main things you need to know when making
+changes to the expl3 bundle.
+
+1. We have a regression test suite
+2. Don't break it
+
+To make sure things are working, run
+
+    make check
+    
+If you change something, run that again. All working? Great!
+Please send your diffs to the discussion list and we can talk
+about adding your code.
+
+You can find more information about the test suite in
+  
+    l3in2e/testfiles/README.txt
+
+On a less critical level, we also have a method to check
+that our documentation is somewhat self-consistent. Run
+
+    make checkdoc
+  
+and each module will be compiled and verified that what
+is defined in the module is also documented.
+
+Note that it only checks what we *claim* we are defining
+in the documentation; it does not literally check the code. 
+It will also check that each module's documentation 
+still compiles without errors.
+
+
+--- Copyright 1998 -- 2009
+    The LaTeX3 Project.  All rights reserved ---
+
diff --git a/Master/texmf-dist/doc/latex/expl3/source3.pdf b/Master/texmf-dist/doc/latex/expl3/source3.pdf
index 29d7985fe97..6cfe59cae8f 100644
--- a/Master/texmf-dist/doc/latex/expl3/source3.pdf
+++ b/Master/texmf-dist/doc/latex/expl3/source3.pdf