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authorKarl Berry <karl@freefriends.org>2017-07-15 21:27:01 +0000
committerKarl Berry <karl@freefriends.org>2017-07-15 21:27:01 +0000
commitb1ce47fe4d0e1f06d1b019c3c6eb5f1b0ecd5e14 (patch)
tree58362abe4b603bb5f6db898b9b835bc8af730b3e /Master/texmf-dist/doc
parent03b8dcfa3435f0265dfad4fd09aaab8f4ff9c617 (diff)
l3 (15jul17)
git-svn-id: svn://tug.org/texlive/trunk@44813 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Master/texmf-dist/doc')
-rw-r--r--Master/texmf-dist/doc/latex/l3experimental/README.md2
-rw-r--r--Master/texmf-dist/doc/latex/l3experimental/l3str/l3str-convert.pdfbin438535 -> 438329 bytes
-rw-r--r--Master/texmf-dist/doc/latex/l3experimental/l3str/l3str-format.pdfbin374969 -> 374749 bytes
-rw-r--r--Master/texmf-dist/doc/latex/l3experimental/xcoffins/xcoffins.pdfbin377050 -> 376845 bytes
-rw-r--r--Master/texmf-dist/doc/latex/l3experimental/xgalley/l3galley.pdfbin390002 -> 389802 bytes
-rw-r--r--Master/texmf-dist/doc/latex/l3experimental/xgalley/xgalley.pdfbin286158 -> 285960 bytes
-rw-r--r--Master/texmf-dist/doc/latex/l3kernel/README.md7
-rw-r--r--Master/texmf-dist/doc/latex/l3kernel/expl3.pdfbin583930 -> 543160 bytes
-rw-r--r--Master/texmf-dist/doc/latex/l3kernel/interface3.pdfbin1619924 -> 1422799 bytes
-rw-r--r--Master/texmf-dist/doc/latex/l3kernel/interface3.tex88
-rw-r--r--Master/texmf-dist/doc/latex/l3kernel/l3docstrip.pdfbin263769 -> 263548 bytes
-rw-r--r--Master/texmf-dist/doc/latex/l3kernel/l3obsolete.txt9
-rw-r--r--Master/texmf-dist/doc/latex/l3kernel/l3styleguide.pdfbin275656 -> 275400 bytes
-rw-r--r--Master/texmf-dist/doc/latex/l3kernel/l3styleguide.tex274
-rw-r--r--Master/texmf-dist/doc/latex/l3kernel/l3syntax-changes.pdfbin215934 -> 215681 bytes
-rw-r--r--Master/texmf-dist/doc/latex/l3kernel/l3syntax-changes.tex101
-rw-r--r--Master/texmf-dist/doc/latex/l3kernel/source3.pdfbin5211679 -> 3332254 bytes
-rw-r--r--Master/texmf-dist/doc/latex/l3kernel/source3.tex106
-rw-r--r--Master/texmf-dist/doc/latex/l3packages/README.md2
-rw-r--r--Master/texmf-dist/doc/latex/l3packages/l3keys2e/l3keys2e.pdfbin328314 -> 328058 bytes
-rw-r--r--Master/texmf-dist/doc/latex/l3packages/xfp/xfp.pdfbin299098 -> 298873 bytes
-rw-r--r--Master/texmf-dist/doc/latex/l3packages/xfrac/xfrac.pdfbin477139 -> 476935 bytes
-rw-r--r--Master/texmf-dist/doc/latex/l3packages/xparse/xparse.pdfbin475642 -> 475427 bytes
-rw-r--r--Master/texmf-dist/doc/latex/l3packages/xtemplate/xtemplate.pdfbin421394 -> 421188 bytes
24 files changed, 583 insertions, 6 deletions
diff --git a/Master/texmf-dist/doc/latex/l3experimental/README.md b/Master/texmf-dist/doc/latex/l3experimental/README.md
index ccac875f177..81a36e7abea 100644
--- a/Master/texmf-dist/doc/latex/l3experimental/README.md
+++ b/Master/texmf-dist/doc/latex/l3experimental/README.md
@@ -1,7 +1,7 @@
Experimental LaTeX3 Concepts
============================
-Release 2017/05/29
+Release 2017/07/15
Overview
--------
diff --git a/Master/texmf-dist/doc/latex/l3experimental/l3str/l3str-convert.pdf b/Master/texmf-dist/doc/latex/l3experimental/l3str/l3str-convert.pdf
index 0ff1e19524b..a34ab877ee5 100644
--- a/Master/texmf-dist/doc/latex/l3experimental/l3str/l3str-convert.pdf
+++ b/Master/texmf-dist/doc/latex/l3experimental/l3str/l3str-convert.pdf
Binary files differ
diff --git a/Master/texmf-dist/doc/latex/l3experimental/l3str/l3str-format.pdf b/Master/texmf-dist/doc/latex/l3experimental/l3str/l3str-format.pdf
index a84ed19f4fc..6fa85398db8 100644
--- a/Master/texmf-dist/doc/latex/l3experimental/l3str/l3str-format.pdf
+++ b/Master/texmf-dist/doc/latex/l3experimental/l3str/l3str-format.pdf
Binary files differ
diff --git a/Master/texmf-dist/doc/latex/l3experimental/xcoffins/xcoffins.pdf b/Master/texmf-dist/doc/latex/l3experimental/xcoffins/xcoffins.pdf
index b0474719904..439eb182dfb 100644
--- a/Master/texmf-dist/doc/latex/l3experimental/xcoffins/xcoffins.pdf
+++ b/Master/texmf-dist/doc/latex/l3experimental/xcoffins/xcoffins.pdf
Binary files differ
diff --git a/Master/texmf-dist/doc/latex/l3experimental/xgalley/l3galley.pdf b/Master/texmf-dist/doc/latex/l3experimental/xgalley/l3galley.pdf
index 4f6675280b8..d3636444b4f 100644
--- a/Master/texmf-dist/doc/latex/l3experimental/xgalley/l3galley.pdf
+++ b/Master/texmf-dist/doc/latex/l3experimental/xgalley/l3galley.pdf
Binary files differ
diff --git a/Master/texmf-dist/doc/latex/l3experimental/xgalley/xgalley.pdf b/Master/texmf-dist/doc/latex/l3experimental/xgalley/xgalley.pdf
index 1b9b2c657dc..42baade9067 100644
--- a/Master/texmf-dist/doc/latex/l3experimental/xgalley/xgalley.pdf
+++ b/Master/texmf-dist/doc/latex/l3experimental/xgalley/xgalley.pdf
Binary files differ
diff --git a/Master/texmf-dist/doc/latex/l3kernel/README.md b/Master/texmf-dist/doc/latex/l3kernel/README.md
index 1e941253eee..bd25e8d24f7 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/README.md
+++ b/Master/texmf-dist/doc/latex/l3kernel/README.md
@@ -1,7 +1,7 @@
LaTeX3 Programming Conventions
==============================
-Release 2017/05/29
+Release 2017/07/15
Overview
--------
@@ -30,15 +30,14 @@ Requirements
The `l3kernel` bundle requires the e-TeX extensions and additional functionality
to support string comparisons, expandable character generation with arbitrary
category codes (for Unicode engines) and PDF support primitives (where direct
-PDF generation is used). The bundle will therefore only work with the following
-engines:
+PDF generation is used). The bundle only works with the following engines:
* pdfTeX v1.40 or later
* XeTeX v0.9994 or later
* LuaTeX v0.70 or later
* e-(u)pTeX from mid-2012 onward
pdfTeX v1.40 was released in 2007, and so any recent TeX distribution
-will support `l3kernel`. Both XeTeX and LuaTeX have developed more
+supports `l3kernel`. Both XeTeX and LuaTeX have developed more
actively over the past few years, and for this reason only recent
releases of these engines are supported.
diff --git a/Master/texmf-dist/doc/latex/l3kernel/expl3.pdf b/Master/texmf-dist/doc/latex/l3kernel/expl3.pdf
index 374371230f6..b68a5d86840 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/expl3.pdf
+++ b/Master/texmf-dist/doc/latex/l3kernel/expl3.pdf
Binary files differ
diff --git a/Master/texmf-dist/doc/latex/l3kernel/interface3.pdf b/Master/texmf-dist/doc/latex/l3kernel/interface3.pdf
index 18de9660f4d..a94745436db 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/interface3.pdf
+++ b/Master/texmf-dist/doc/latex/l3kernel/interface3.pdf
Binary files differ
diff --git a/Master/texmf-dist/doc/latex/l3kernel/interface3.tex b/Master/texmf-dist/doc/latex/l3kernel/interface3.tex
new file mode 100644
index 00000000000..d71383d0c9f
--- /dev/null
+++ b/Master/texmf-dist/doc/latex/l3kernel/interface3.tex
@@ -0,0 +1,88 @@
+% \iffalse meta-comment
+%
+%% File: interfaces3.tex Copyright (C) 1990-2011 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 "l3kernel 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 LaTeX3 Project.
+%%
+%% -----------------------------------------------------------------------
+%
+% \fi
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% This document typesets the LaTeX3 interface descriptions a single document.
+% This produces quite a large file (more than 170 pages currently).
+%
+% There is also a full version of the sources (source3.tex) which additionally
+% also typesets the command implementations.
+%
+% Do not forget to generate the index (as explained on the terminal output
+% near the end of the run)!
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+
+\documentclass{l3doc}
+\listfiles
+
+\begin{document}
+
+\title{The \LaTeX3 Interfaces}
+\author{%
+ The \LaTeX3 Project\thanks
+ {%
+ E-mail:
+ \href{mailto:latex-team@latex-project.org}
+ {latex-team@latex-project.org}%
+ }%
+}
+
+\pagenumbering{roman}
+\maketitle
+
+%
+% First load all modules and typeset the documentation parts
+%
+
+\input{source3body} % all the individual modules
+
+\clearpage
+
+\begingroup
+ \def\endash{--}
+ \catcode`\-\active
+ \def-{\futurelet\temp\indexdash}
+ \def\indexdash{\ifx\temp-\endash\fi}
+ \DelayPrintIndex
+\endgroup
+
+\end{document}
+
+
diff --git a/Master/texmf-dist/doc/latex/l3kernel/l3docstrip.pdf b/Master/texmf-dist/doc/latex/l3kernel/l3docstrip.pdf
index 0dd679911d9..365f3beb8a4 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/l3docstrip.pdf
+++ b/Master/texmf-dist/doc/latex/l3kernel/l3docstrip.pdf
Binary files differ
diff --git a/Master/texmf-dist/doc/latex/l3kernel/l3obsolete.txt b/Master/texmf-dist/doc/latex/l3kernel/l3obsolete.txt
index 5d8e254af51..981f95f5303 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/l3obsolete.txt
+++ b/Master/texmf-dist/doc/latex/l3kernel/l3obsolete.txt
@@ -18,7 +18,16 @@ Function Expires end
\c_minus_one 2018
\box_resize:cnn 2018
\box_resize:Nnn 2018
+\file_add_path:nN 2018
+\file_list: 2018
+\file_path_include:n 2018
+\file_path_remove:n 2018
+\g_file_current_name_tl 2018
\ior_get_str:NN 2017
+\ior_list_streams: 2018
+\ior_log_streams: 2018
+\iow_list_streams: 2018
+\iow_log_streams: 2018
\sort_ordered: 2018
\sort_reversed: 2018
\tl_to_lowercase:n 2017
diff --git a/Master/texmf-dist/doc/latex/l3kernel/l3styleguide.pdf b/Master/texmf-dist/doc/latex/l3kernel/l3styleguide.pdf
index 0a9b12ea552..a28e2302945 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/l3styleguide.pdf
+++ b/Master/texmf-dist/doc/latex/l3kernel/l3styleguide.pdf
Binary files differ
diff --git a/Master/texmf-dist/doc/latex/l3kernel/l3styleguide.tex b/Master/texmf-dist/doc/latex/l3kernel/l3styleguide.tex
new file mode 100644
index 00000000000..49f32251b4a
--- /dev/null
+++ b/Master/texmf-dist/doc/latex/l3kernel/l3styleguide.tex
@@ -0,0 +1,274 @@
+\iffalse meta-comment
+
+File l3styleguide.tex Copyright (C) 2011,2012,2015-2017 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 "l3kernel 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.
+
+\fi
+
+\documentclass{l3doc}
+
+
+\title{%
+ The \LaTeX3 kernel: style guide for code authors%
+}
+\author{%
+ The \LaTeX3 Project\thanks
+ {%
+ E-mail:
+ \href{mailto:latex-team@latex-project.org}%
+ {latex-team@latex-project.org}%
+ }%
+}
+\date{Released 2017/07/15}
+
+\begin{document}
+
+\maketitle
+
+\tableofcontents
+
+\section{Introduction}
+
+This document is intended as a style guide for authors of code and
+documentation for the \LaTeX3 kernel. It covers both aspects of coding
+style and the formatting of the sources. The aim of providing these
+guidelines is help ensure consistency of the code and sources from
+different authors. Experience suggests that in the long-term this helps
+with maintenance. There will of course be places where there are
+exceptions to these guidelines: common sense should always be
+applied!
+
+\section{Documentation style}
+
+\LaTeX3 source and documentation should be written using the document
+class \cls{l3doc} in \file{dtx} format. This class provides a number
+of logical mark up elements, which should be used where possible.
+In the main, this is standard \LaTeX{} practice, but there are a
+few points to highlight:
+\begin{itemize}
+ \item
+ Where possible, use \cs{cs} to mark up control sequences
+ rather than using a verbatim environment.
+ \item
+ Arguments which are given in braces should be marked using
+ \cs{Arg} when code-level functions are discussed, but using
+ \cs{marg} for document functions.
+ \item
+ The names \TeX{}, \LaTeX{}, \emph{etc}.\ use the normal logical mark
+ up followed by an empty group (|{}|), with the exception of |\LaTeX3|,
+ where the number should follow directly.
+ \item
+ Where in line verbatim text is used, it should be marked up
+ using the \verb=|...|= construct (\emph{i.e.}~vertical bars delimit
+ the verbatim text).
+ \item In line quotes should be marked up using the \cs{enquote}
+ function.
+ \item
+ Where numbers in the source have a mathematical meaning,
+ they should be included in math mode. Such in-line math mode
+ material should be marked up using |$...$| and \emph{not}
+ |\(...\)|.
+\end{itemize}
+
+Line length in the source files should be under $80$
+characters where possible, as this helps keep everything on the screen
+when editing files. In the \file{dtx} format, documentation lines start
+with a \texttt{\%}, which is usually followed by a space to leave a
+\enquote{comment margin} at the start of each line.
+
+As with code indenting (see later), nested environments and arguments
+should be indented by (at least) two spaces to make the nature of the nesting
+clear. Thus for example a typical arrangement for the \env{function}
+environment might be
+\begin{verbatim*}
+\begin{function}{\seq_gclear:N, \seq_gclear:c}
+ \begin{syntax}
+ \cs{seq_gclear:N} \meta{sequence}
+ \end{syntax}
+ Clears all entries from the \meta{sequence} globally.
+\end{function}
+\end{verbatim*}
+The \enquote{outer} \verb*|% \begin{function}| should have the customary
+space after the |%| character at the start of the line.
+
+In general, a single \env{function} or \env{macro} environment should be
+used for a group of closely-related functions, for example argument
+specification variants. In such cases, a comma-separated list should be
+used, as shown in the preceding example.
+
+\section{Format of the code itself}
+
+The requirement for fewer than $80$ characters per line applies to the code
+itself as well as the surrounding documentation. A number of the general
+style principles for \LaTeX3 code apply: these are described in the following
+paragraph and an example is then given.
+
+With the exception of simple runs of parameter (|{#1}|, |#1#2|,
+\emph{etc.}), everything should be divided up using spaces to make the code
+more readable. In general, these will be single spaces, but in some
+places it makes more sense to align parts of the code to emphasise
+similarity. (Tabs should not be used for introducing white space.)
+
+Each conceptually-separate step in a function should be on a separate
+line, to make the meaning clearer. Hence the \texttt{false} branch
+in the example uses two lines for the two auxiliary function uses.
+
+Within the definition, a two-space indent should be used to show each
+\enquote{level} of code. Thus in the example \cs{tl_if_empty:nTF} is
+indented by two spaces, but the two branches are indented by four
+spaces. Within the \texttt{false} branch, the need for multiple lines
+means that an additional two-space indent should be used to show that
+these lines are all part of the brace group.
+
+The result of these lay-out conventions is code which in general
+looks like the example:
+\begin{verbatim*}
+\cs_new:Npn \module_foo:nn #1#2
+ {
+ \tl_if_empty:nTF {#1}
+ { \module_foo_aux:n { X #2 } }
+ {
+ \module_foo_aux:nn {#1} {#2}
+ \module_foo_aux:n { #1 #2 }
+ }
+ }
+\end{verbatim*}
+
+\section{Code conventions}
+
+All code-level functions should be \enquote{long} if they accept any
+arguments, even if it seems \enquote{very unlikely} that a \cs{par} token
+will be passed. Thus \cs{cs_new_nopar:Npn} and so forth should only be used
+to create interfaces at the document level (where trapping \cs{par} tokens
+may be appropriate) or where comparison to other code known not to be
+\enquote{long} is required (\emph{e.g.}~when working with mixed
+\LaTeXe{}/\pkg{expl3} situations).
+
+The expandability of each function should be well-defined. Functions which
+cannot be fully expanded must be \texttt{protected}. This means that expandable
+functions must themselves only contain expandable material. Functions which
+use any non-expandable material must be defined using \cs{cs_new_protected:Npn}
+or similar.
+
+When using \cs{cs_generate_variant:Nn}, group related variants together
+to make the pattern clearer. A common example is variants of a function
+which has an \texttt{N}-type first argument:
+\begin{verbatim}
+ \cs_generate_variant:Nn \foo:Nn { NV , No }
+ \cs_generate_variant:Nn \foo:Nn { c , cV , co }
+\end{verbatim}
+
+There may be cases where omitting braces from \texttt{o}-type arguments
+is desirable for performance reasons. This should only be done if the
+argument is a single token, thus for example
+\begin{verbatim}
+ \tl_set:No \l_some_tl \l_some_other_tl
+\end{verbatim}
+remains clear and can be used where appropriate.
+
+\section{Private and internal functions}
+
+Private functions (those starting \cs{__}) should not be used between modules.
+The only exception is where a \enquote{family} of modules share some
+\enquote{internal} methods: this happens most obviously in the kernel itself.
+Any internal functions or variables \emph{must} be documented in the same way
+as public ones.
+
+The \pkg{l3docstrip} method should be used for internal functions in a module.
+This requires a line
+\begin{quote}
+ \ttfamily
+ \%<@@=\meta{module}>
+\end{quote}
+at the start of the source (\texttt{.dtx}) file, with internal functions
+then written in the form
+\begin{verbatim}
+ \cs_new_protected:Npn \@@_function:nn #1#2
+ ...
+\end{verbatim}
+
+\subsection{Access from other modules}
+
+There may be cases where it is useful to use an internal function from
+a third-party module (this includes cases where you are the author of both
+but they are not part of the same \enquote{family}). In these cases, you should
+\emph{copy} the definition of the internal function to your code: this avoids
+relying on non-documented interfaces. At the same time, it is strongly
+encouraged that you discuss your requirements with the author of the
+code you need to access. The best long-term solution to these cases is for
+new documented interfaces to be added to the parent module.
+
+\subsection{Access to primitives}
+
+As \pkg{expl3} is still a developing system, there are places where direct
+access to engine primitives is required. These are all marked as
+\enquote{do not use} in the code and so require special handling. Where a
+programmer is sure that they need to use a primitive (for example where the
+team have not yet covered access to an area) then a local copy of the
+primitive should be made, for example
+\begin{verbatim}
+ \cs_new_eq:NN \__module_message:w \tex_message:D
+ % ...
+ \cs_new_protected:Npn \__module_fancy_msg:n #1
+ { \__module_message:w { *** #1 *** } }
+\end{verbatim}
+This approach makes it possible for the team and others to find such
+usage (by searching for the \texttt{:D} argument type) but avoids
+multiple uses in general code.
+
+At the same time, the team ask that these use cases are raised on the
+\texttt{LaTeX-L} mailing list. The team are keen to collect use cases for
+areas that have not yet been addressed and to provide new code where the
+required interfaces become clear.
+
+Programmers using primitives should be ready to make updates to their
+code as the team develop additional interfaces.
+
+\section{Auxiliary functions}
+
+In general, the team encourages the use of descriptive names in \LaTeX3 code.
+Thus many helper functions would have names which describe briefly what they do,
+rather than simply indicating that they are auxiliary to some higher-level
+function. However, there are places where one or more \texttt{aux} functions
+are required. Where possible, these should be differentiated by signature
+\begin{verbatim}
+ \cs_new_protected:Npn \@@_function:nn #1#2
+ {
+ ...
+ }
+ \cs_new_protected:Npn \@@_function_aux:nn #1#2
+ {
+ ...
+ }
+ \cs_new_protected:Npn \@@_function_aux:w #1#2 \q_stop
+ {
+ ...
+ }
+\end{verbatim}
+Where more than one auxiliary shares the same signature, the recommended naming
+scheme is \texttt{auxi}, \texttt{auxii} and so on.
+\begin{verbatim}
+ \cs_new_protected:Npn \@@_function_auxi:nn #1#2
+ {
+ ...
+ }
+ \cs_new_protected:Npn \@@_function_auxii:nn #1#2
+ {
+ ...
+ }
+\end{verbatim}
+The use of \texttt{aux_i}, \texttt{aux_ii}, \emph{etc.}\ is discouraged as this
+conflicts with the convention used by \cs{use_i:nn} and related functions.
+
+\end{document}
diff --git a/Master/texmf-dist/doc/latex/l3kernel/l3syntax-changes.pdf b/Master/texmf-dist/doc/latex/l3kernel/l3syntax-changes.pdf
index 878e47efdf5..0caa11d028d 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/l3syntax-changes.pdf
+++ b/Master/texmf-dist/doc/latex/l3kernel/l3syntax-changes.pdf
Binary files differ
diff --git a/Master/texmf-dist/doc/latex/l3kernel/l3syntax-changes.tex b/Master/texmf-dist/doc/latex/l3kernel/l3syntax-changes.tex
new file mode 100644
index 00000000000..3e93fa0704f
--- /dev/null
+++ b/Master/texmf-dist/doc/latex/l3kernel/l3syntax-changes.tex
@@ -0,0 +1,101 @@
+\iffalse meta-comment
+
+File l3syntax-changes.tex Copyright (C) 2011-2012,2017 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 "l3kernel 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.
+
+\fi
+
+\documentclass{l3doc}
+
+
+\title{%
+ Syntax changes in \LaTeX3 functions%
+}
+\author{%
+ The \LaTeX3 Project\thanks
+ {%
+ E-mail:
+ \href{mailto:latex-team@latex-project.org}%
+ {latex-team@latex-project.org}%
+ }%
+}
+\date{Released 2017/07/15}
+
+\newcommand{\TF}{\textit{(TF)}}
+
+\begin{document}
+
+\maketitle
+
+This file lists functions whose syntax has changed after August 2011,
+with an approximate date.
+
+\section{August 2011}
+
+\begin{itemize}
+ \item \cs{tl_if_single:n\TF} recognized any non-zero number of
+ explicit spaces as \meta{true}, and did not ignore trailing spaces.
+ Now it is \meta{true} for
+ \[
+ \meta{optional spaces}
+ \meta{normal token or brace group}
+ \meta{optional spaces}.
+ \]
+ \item \cs{tl_reverse:n} stripped outer braces and lost unprotected spaces.
+ Now it keeps spaces, leaves unbraced single tokens unbraced, and
+ braced groups braced.
+ \item \cs{tl_trim_spaces:n} only removed one leading and trailing space.
+ Now removes recursively. Also, on the left it used to strip implicit
+ and explicit spaces with any character code. Now it strips only explicit
+ space characters $(32,10)$.
+\end{itemize}
+
+\section{September 2011}
+
+\begin{itemize}
+\item clist functions which receive an \texttt{n}-type comma list argument
+ now trim spaces from each item in the argument.
+\end{itemize}
+
+\section{June 2012}
+
+\begin{itemize}
+ \item Access to list functions now indexes from~$1$, not from~$0$.
+ This applies to multiple choices in the \pkg{l3keys} module and
+ the \cs{clist_item:Nn}, \cs{seq_item:Nn} and \cs{tl_item:Nn}
+ functions.
+ \item \cs{tl_trim_spaces:n} now requires a variable number of
+ expansions to fully expand, rather than exactly two. Of course,
+ \texttt{x}-type expansion still correctly evaluates this function.
+\end{itemize}
+
+\section{July 2012}
+
+\begin{itemize}
+ \item The \cs{tl_if_head_eq_meaning:nN}, \cs{tl_if_head_eq_catcode:nN}
+ and \cs{tl_if_head_eq_charcode:nN} conditionals now never match when
+ their first argument is empty.
+\end{itemize}
+
+\section{August 2012}
+
+\begin{itemize}
+ \item \cs{lua_now:x} is now a standard \texttt{x}-type expansion of
+ \cs{lua_now:n}, which does no expansion. Engine-level expansion is moved
+ to \cs{lua_now_x:n}, reflecting the fact that this is non-standard in the
+ same way as for example \cs{str_if_eq_x:nn(TF)}.
+\end{itemize}
+
+
+\end{document}
diff --git a/Master/texmf-dist/doc/latex/l3kernel/source3.pdf b/Master/texmf-dist/doc/latex/l3kernel/source3.pdf
index ac3ebd9ad71..75cfec6429d 100644
--- a/Master/texmf-dist/doc/latex/l3kernel/source3.pdf
+++ b/Master/texmf-dist/doc/latex/l3kernel/source3.pdf
Binary files differ
diff --git a/Master/texmf-dist/doc/latex/l3kernel/source3.tex b/Master/texmf-dist/doc/latex/l3kernel/source3.tex
new file mode 100644
index 00000000000..3a97669a2c5
--- /dev/null
+++ b/Master/texmf-dist/doc/latex/l3kernel/source3.tex
@@ -0,0 +1,106 @@
+% \iffalse meta-comment
+%
+%% File: source3.tex Copyright (C) 1990-2011 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 "l3kernel 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 LaTeX3 Project.
+%%
+%% -----------------------------------------------------------------------
+%
+% \fi
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% This document typesets the LaTeX3 sources as a single document.
+% This produces quite a large file (more than 780 pages).
+%
+% There is also a shorter version (interface3.tex) that only typesets the
+% command % interface descriptions.
+%
+% Do not forget to generate the index (as explained on the terminal output
+% near the end of the run)!
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\documentclass{l3doc}
+\listfiles
+
+\begin{document}
+
+\title{The \LaTeX3 Sources}
+\author{%
+ The \LaTeX3 Project\thanks
+ {%
+ E-mail:
+ \href{mailto:latex-team@latex-project.org}
+ {latex-team@latex-project.org}%
+ }%
+}
+
+\pagenumbering{roman}
+\maketitle
+
+%
+% First load all modules and typeset the documentation parts
+%
+
+\input{source3body} % all the individual modules
+
+%
+% Now reload all modules and typeset the implementation parts
+%
+
+\part{Implementation}
+
+\def\maketitle{}
+\EnableImplementation
+\DisableDocumentation
+\DocInputAgain
+
+\clearpage
+\pagestyle{headings}
+
+% Make TeX shut up.
+\hbadness=10000
+\newcount\hbadness
+\hfuzz=\maxdimen
+
+\PrintChanges
+\clearpage
+
+\begingroup
+ \def\endash{--}
+ \catcode`\-\active
+ \def-{\futurelet\temp\indexdash}
+ \def\indexdash{\ifx\temp-\endash\fi}
+
+ \DelayPrintIndex
+\endgroup
+
+\end{document}
diff --git a/Master/texmf-dist/doc/latex/l3packages/README.md b/Master/texmf-dist/doc/latex/l3packages/README.md
index 4a157fa5454..27bdaf3c5ef 100644
--- a/Master/texmf-dist/doc/latex/l3packages/README.md
+++ b/Master/texmf-dist/doc/latex/l3packages/README.md
@@ -1,7 +1,7 @@
LaTeX3 High-Level Concepts
==========================
-Release 2017/05/29
+Release 2017/07/15
Overview
--------
diff --git a/Master/texmf-dist/doc/latex/l3packages/l3keys2e/l3keys2e.pdf b/Master/texmf-dist/doc/latex/l3packages/l3keys2e/l3keys2e.pdf
index 31796912bb4..f9bb3681534 100644
--- a/Master/texmf-dist/doc/latex/l3packages/l3keys2e/l3keys2e.pdf
+++ b/Master/texmf-dist/doc/latex/l3packages/l3keys2e/l3keys2e.pdf
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diff --git a/Master/texmf-dist/doc/latex/l3packages/xfp/xfp.pdf b/Master/texmf-dist/doc/latex/l3packages/xfp/xfp.pdf
index b8f1965546a..1722e823e6f 100644
--- a/Master/texmf-dist/doc/latex/l3packages/xfp/xfp.pdf
+++ b/Master/texmf-dist/doc/latex/l3packages/xfp/xfp.pdf
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diff --git a/Master/texmf-dist/doc/latex/l3packages/xfrac/xfrac.pdf b/Master/texmf-dist/doc/latex/l3packages/xfrac/xfrac.pdf
index f253fe27bd6..0cca078e3af 100644
--- a/Master/texmf-dist/doc/latex/l3packages/xfrac/xfrac.pdf
+++ b/Master/texmf-dist/doc/latex/l3packages/xfrac/xfrac.pdf
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diff --git a/Master/texmf-dist/doc/latex/l3packages/xparse/xparse.pdf b/Master/texmf-dist/doc/latex/l3packages/xparse/xparse.pdf
index ee5762fe637..e0c26f86b2f 100644
--- a/Master/texmf-dist/doc/latex/l3packages/xparse/xparse.pdf
+++ b/Master/texmf-dist/doc/latex/l3packages/xparse/xparse.pdf
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diff --git a/Master/texmf-dist/doc/latex/l3packages/xtemplate/xtemplate.pdf b/Master/texmf-dist/doc/latex/l3packages/xtemplate/xtemplate.pdf
index d62d369132e..d038dd6763e 100644
--- a/Master/texmf-dist/doc/latex/l3packages/xtemplate/xtemplate.pdf
+++ b/Master/texmf-dist/doc/latex/l3packages/xtemplate/xtemplate.pdf
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