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authorKarl Berry <karl@freefriends.org>2013-07-28 21:53:53 +0000
committerKarl Berry <karl@freefriends.org>2013-07-28 21:53:53 +0000
commit476ef285597d50560f829ffd64532d75d937d06a (patch)
tree5c652f3fb3c6e7458bb762f660a005e2f77c3f80 /Master/texmf-dist/doc/latex
parent9cad0f5f2f5f3df83a79cca1d848bf3a5feef241 (diff)
latex3 (28jul13)
git-svn-id: svn://tug.org/texlive/trunk@31299 c570f23f-e606-0410-a88d-b1316a301751
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-rw-r--r--Master/texmf-dist/doc/latex/l3experimental/l3str/l3regex.pdfbin981442 -> 982431 bytes
-rw-r--r--Master/texmf-dist/doc/latex/l3experimental/l3str/l3str-convert.pdfbin781940 -> 781932 bytes
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-rw-r--r--Master/texmf-dist/doc/latex/l3experimental/l3str/l3str.pdfbin621683 -> 622988 bytes
-rw-r--r--Master/texmf-dist/doc/latex/l3experimental/l3str/l3tl-analysis.pdfbin521029 -> 521023 bytes
-rw-r--r--Master/texmf-dist/doc/latex/l3experimental/l3str/l3tl-build.pdfbin468393 -> 468386 bytes
-rw-r--r--Master/texmf-dist/doc/latex/l3experimental/xcoffins/xcoffins.pdfbin490259 -> 490253 bytes
-rw-r--r--Master/texmf-dist/doc/latex/l3experimental/xgalley/l3galley.pdfbin681144 -> 681136 bytes
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-rw-r--r--Master/texmf-dist/doc/latex/l3kernel/expl3.pdfbin674929 -> 675499 bytes
-rw-r--r--Master/texmf-dist/doc/latex/l3kernel/interface3.pdfbin1273451 -> 1279096 bytes
-rw-r--r--Master/texmf-dist/doc/latex/l3kernel/interface3.tex89
-rw-r--r--Master/texmf-dist/doc/latex/l3kernel/l3docstrip.pdfbin393848 -> 449468 bytes
-rw-r--r--Master/texmf-dist/doc/latex/l3kernel/l3styleguide.pdfbin273226 -> 273218 bytes
-rw-r--r--Master/texmf-dist/doc/latex/l3kernel/l3styleguide.tex242
-rw-r--r--Master/texmf-dist/doc/latex/l3kernel/l3syntax-changes.pdfbin220222 -> 220216 bytes
-rw-r--r--Master/texmf-dist/doc/latex/l3kernel/l3syntax-changes.tex110
-rw-r--r--Master/texmf-dist/doc/latex/l3kernel/source3.pdfbin3883722 -> 3822437 bytes
-rw-r--r--Master/texmf-dist/doc/latex/l3kernel/source3.tex106
-rw-r--r--Master/texmf-dist/doc/latex/l3kernel/source3body.tex448
-rw-r--r--Master/texmf-dist/doc/latex/l3packages/l3keys2e/l3keys2e.pdfbin473513 -> 474079 bytes
-rw-r--r--Master/texmf-dist/doc/latex/l3packages/xfrac/xfrac.pdfbin633954 -> 633950 bytes
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index 43d2b9dbe0e..7b86a2913aa 100644
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index aff1a3dfd68..468ea65934a 100644
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diff --git a/Master/texmf-dist/doc/latex/l3kernel/interface3.pdf b/Master/texmf-dist/doc/latex/l3kernel/interface3.pdf
index e8d01c41b85..c8e7d9d1a84 100644
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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..4c0a2761e92
--- /dev/null
+++ b/Master/texmf-dist/doc/latex/l3kernel/interface3.tex
@@ -0,0 +1,89 @@
+% \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 will typeset the LaTeX3 interface descriptions a single
+% document. This will produce 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 0ad6b8c2265..f676112c7dd 100644
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index 6d788a41a6c..251d90daf1d 100644
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index 00000000000..6a3a9d122e6
--- /dev/null
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@@ -0,0 +1,242 @@
+\iffalse meta-comment
+
+File l3styleguide.tex Copyright (C) 2011,2012 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}
+\usepackage{svn-multi}
+
+\svnid{$Id: l3styleguide.tex 2772 2011-09-07 15:07:41Z joseph $}
+\def\filedate{\svnfileyear/\svnfilemonth/\svnfileday}
+
+\title{%
+ The \LaTeX3 kernel: style guide for code authors%
+ \thanks
+ {%
+ This file describes v\svnfilerev,
+ last revised \filedate.
+ }%
+}
+\author{%
+ The \LaTeX3 Project\thanks
+ {%
+ E-mail:
+ \href{mailto:latex-team@latex-project.org}%
+ {latex-team@latex-project.org}%
+ }%
+}
+\date{Released \filedate}
+
+\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 to 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 less than $80$ characters per line applies to the code
+itself as well as the surrounding documentation. A number of the general
+style principals 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 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 will in general
+look 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 functions which accept no arguments at all.
+
+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 are 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}
+
+\section{Auxiliary functions}
+
+In general, the team encourage the use of descriptive names in \LaTeX3 code.
+Thus many helper functions will 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 bc5f88b549b..6fc10de6915 100644
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--- /dev/null
+++ b/Master/texmf-dist/doc/latex/l3kernel/l3syntax-changes.tex
@@ -0,0 +1,110 @@
+\iffalse meta-comment
+
+File l3syntax-changes.tex Copyright (C) 2011-2012 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}
+
+\usepackage{svn-multi}
+
+\svnid{$Id: l3syntax-changes.tex 4048 2012-08-02 09:49:10Z joseph $}
+\def\filedate{\svnfileyear/\svnfilemonth/\svnfileday}
+
+\title{%
+ Syntax changes in \LaTeX3 functions
+ \thanks
+ {%
+ This file describes v\svnfilerev,
+ last revised \filedate.
+ }%
+}
+\author{%
+ The \LaTeX3 Project\thanks
+ {%
+ E-mail:
+ \href{mailto:latex-team@latex-project.org}%
+ {latex-team@latex-project.org}%
+ }%
+}
+\date{Released \filedate}
+
+\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 5c8550ec27d..26f6f5585ea 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..22c3c44048d
--- /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 will typeset the LaTeX3 sources as a single document.
+% This will produce 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/l3kernel/source3body.tex b/Master/texmf-dist/doc/latex/l3kernel/source3body.tex
new file mode 100644
index 00000000000..c5dbc33a7b3
--- /dev/null
+++ b/Master/texmf-dist/doc/latex/l3kernel/source3body.tex
@@ -0,0 +1,448 @@
+% \iffalse meta-comment
+%
+%% File: source3body.tex Copyright (C) 1990-2012 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 file is used by
+%
+% source3.tex % documentation including implementation
+%
+% interface3.tex % only interface documentation
+%
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+
+\begin{abstract}
+
+\setlength\parindent{0pt}
+\setlength\parskip{\baselineskip}
+
+\noindent
+This is the reference documentation for the \pkg{expl3}
+programming environment. The \pkg{expl3} modules set up an experimental
+naming scheme for \LaTeX{} commands, which allow the \LaTeX{} programmer
+to systematically name functions and variables, and specify the argument
+types of functions.
+
+The \TeX{} and \eTeX{} primitives are all given a new name according to
+these conventions. However, in the main direct use of the primitives is
+not required or encouraged: the \pkg{expl3} modules define an
+independent low-level \LaTeX3 programming language.
+
+At present, the \pkg{expl3} modules are designed to be loaded on top of
+\LaTeXe{}. In time, a \LaTeX3 format will be produced based on this code.
+This allows the code to be used in \LaTeXe{} packages \emph{now} while a
+stand-alone \LaTeX3 is developed.
+
+\begin{bfseries}
+ While \pkg{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 \pkg{expl3}.
+
+ New modules will be added to the distributed version of \pkg{expl3} as
+ they reach maturity.
+\end{bfseries}
+
+\end{abstract}
+
+\clearpage
+
+{%
+ \def\\{:}% fix "newlines" in the ToC
+ \tableofcontents
+}
+
+\clearpage
+\pagenumbering{arabic}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% Each of the following \DocInput lines includes a file with extension
+% .dtx. Each of these files may be typeset separately. For instance
+% pdflatex l3box.dtx
+% will typeset the source of the LaTeX3 box commands. If you use the
+% Makefile, the index will be generated automatically; e.g.,
+% make doc F=l3box
+%
+% If this file is processed, each of these separate dtx files will be
+% contained as a part of a single document.
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\makeatletter
+\def\partname{Part}
+\def\maketitle{\clearpage\part{\@title}}
+\let\thanks\@gobble
+\let\DelayPrintIndex\PrintIndex
+\let\PrintIndex\@empty
+\makeatother
+
+\part{Introduction to \pkg{expl3} and this document}
+
+This document is intended to act as a comprehensive reference manual
+for the \pkg{expl3} language. A general guide to the \LaTeX3
+programming language is found in \href{expl3.pdf}{expl3.pdf}.
+
+\section{Naming functions and variables}
+
+\LaTeX3 does not use \texttt{@} as a \enquote{letter} for defining
+internal macros. Instead, the symbols |_| and \texttt{:}
+are used in internal macro names to provide structure. The name of
+each \emph{function} is divided into logical units using \texttt{_},
+while \texttt{:} separates the \emph{name} of the function from the
+\emph{argument specifier} (\enquote{arg-spec}). This describes the arguments
+expected by the function. In most cases, each argument is represented
+by a single letter. The complete list of arg-spec letters for a function
+is referred to as the \emph{signature} of the function.
+
+Each function name starts with the \emph{module} to which it belongs.
+Thus apart from a small number of very basic functions, all \pkg{expl3}
+function names contain at least one underscore to divide the module
+name from the descriptive name of the function. For example, all
+functions concerned with comma lists are in module \texttt{clist} and
+begin \cs{clist_}.
+
+Every function must include an argument specifier. For functions which
+take no arguments, this will be blank and the function name will end
+\texttt{:}. Most functions take one or more arguments, and use the
+following argument specifiers:
+\begin{description}
+ \item[\texttt{D}] The \texttt{D} specifier means \emph{do not use}.
+ All of the \TeX{} primitives are initially \cs{let} to a \texttt{D}
+ name, and some are then given a second name. Only the kernel
+ team should use anything with a \texttt{D} specifier!
+ \item[\texttt{N} and \texttt{n}] These mean \emph{no manipulation},
+ of a single token for \texttt{N} and of a set of tokens given in
+ braces for \texttt{n}. Both pass the argument through exactly as
+ given. Usually, if you use a single token for an \texttt{n} argument,
+ all will be well.
+ \item[\texttt{c}] This means \emph{csname}, and indicates that the
+ argument will be turned into a csname before being used. So
+ So \cs{foo:c} |{ArgumentOne}| will act in the same way as \cs{foo:N}
+ \cs{ArgumentOne}.
+ \item[\texttt{V} and \texttt{v}] These mean \emph{value
+ of variable}. The \texttt{V} and \texttt{v} specifiers are used to
+ get the content of a variable without needing to worry about the
+ underlying \TeX{} structure containing the data. A \texttt{V}
+ argument will be a single token (similar to \texttt{N}), for example
+ \cs{foo:V} \cs{MyVariable}; on the other hand, using \texttt{v} a
+ csname is constructed first, and then the value is recovered, for
+ example \cs{foo:v} |{MyVariable}|.
+ \item[\texttt{o}] This means \emph{expansion once}. In general, the
+ \texttt{V} and \texttt{v} specifiers are favoured over \texttt{o}
+ for recovering stored information. However, \texttt{o} is useful
+ for correctly processing information with delimited arguments.
+ \item[\texttt{x}] The \texttt{x} specifier stands for \emph{exhaustive
+ expansion}: every token in the argument is fully expanded until only
+ unexpandable ones remain. The \TeX{} \tn{edef} primitive carries out
+ this type of expansion. Functions which feature an \texttt{x}-type
+ argument are in general \emph{not} expandable, unless specifically
+ noted.
+ \item[\texttt{f}] The \texttt{f} specifier stands for \emph{full
+ expansion}, and in contrast to \texttt{x} stops at the first
+ non-expandable item (reading the argument from left to right) without
+ trying to expand it. For example, when setting a token list
+ variable (a macro used for storage), the sequence
+ \begin{verbatim}
+ \tl_set:Nn \l_mya_tl { A }
+ \tl_set:Nn \l_myb_tl { B }
+ \tl_set:Nf \l_mya_tl { \l_mya_tl \l_myb_tl }
+ \end{verbatim}
+ will leave |\l_mya_tl| with the content |A\l_myb_tl|, as |A| cannot
+ be expanded and so terminates expansion before |\l_myb_tl| is considered.
+ \item[\texttt{T} and \texttt{F}] For logic tests, there are the branch
+ specifiers \texttt{T} (\emph{true}) and \texttt{F} (\emph{false}).
+ Both specifiers treat the input in the same way as \texttt{n} (no
+ change), but make the logic much easier to see.
+ \item[\texttt{p}] The letter \texttt{p} indicates \TeX{}
+ \emph{parameters}. Normally this will be used for delimited
+ functions as \pkg{expl3} provides better methods for creating simple
+ sequential arguments.
+ \item[\texttt{w}] Finally, there is the \texttt{w} specifier for
+ \emph{weird} arguments. This covers everything else, but mainly
+ applies to delimited values (where the argument must be terminated
+ by some arbitrary string).
+\end{description}
+Notice that the argument specifier describes how the argument is
+processed prior to being passed to the underlying function. For example,
+\cs{foo:c} will take its argument, convert it to a control sequence and
+pass it to \cs{foo:N}.
+
+Variables are named in a similar manner to functions, but begin with
+a single letter to define the type of variable:
+\begin{description}
+ \item[\texttt{c}] Constant: global parameters whose value should not
+ be changed.
+ \item[\texttt{g}] Parameters whose value should only be set globally.
+ \item[\texttt{l}] Parameters whose value should only be set locally.
+\end{description}
+Each variable name is then build up in a similar way to that of a
+function, typically starting with the module\footnote{The module names are
+ not used in case of generic scratch registers defined in the data
+ type modules, e.g., the
+ \texttt{int} module contains some scratch variables called \cs{l_tmpa_int},
+ \cs{l_tmpb_int}, and so on. In such a case adding the module name up front
+ to denote the module
+ and in the back to indicate the type, as in
+ \cs{l_int_tmpa_int} would be very unreadable.} name
+and then a descriptive part.
+Variables end with a short identifier to show the variable type:
+\begin{description}
+ \item[\texttt{bool}] Either true or false.
+ \item[\texttt{box}] Box register.
+ \item[\texttt{clist}] Comma separated list.
+ \item[\texttt{coffin}] a \enquote{box with handles} --- a higher-level data
+ type for carrying out |box| alignment operations.
+ \item[\texttt{dim}] \enquote{Rigid} lengths.
+ \item[\texttt{fp}] floating-point values;
+ \item[\texttt{int}] Integer-valued count register.
+ \item[\texttt{prop}] Property list.
+ \item[\texttt{seq}] \enquote{Sequence}: a data-type used to implement lists
+ (with access at both ends) and stacks.
+ \item[\texttt{skip}] \enquote{Rubber} lengths.
+ \item[\texttt{stream}] An input or output stream (for reading from or
+ writing to, respectively).
+ \item[\texttt{tl}] Token list variables: placeholder for a token list.
+\end{description}
+
+\subsection{Terminological inexactitude}
+
+A word of warning. In this document, and others referring to the \pkg{expl3}
+programming modules, we often refer to \enquote{variables} and
+\enquote{functions} as if they
+were actual constructs from a real programming language. In truth, \TeX{}
+is a macro processor, and functions are simply macros that may or may not take
+arguments and expand to their replacement text. Many of the common variables
+are \emph{also} macros, and if placed into the input stream will simply expand
+to their definition as well~--- a \enquote{function} with no arguments and a
+\enquote{token list variable} are in truth one and the same. On the other
+hand, some \enquote{variables} are actually registers that must be
+initialised and their values set and retrieved with specific functions.
+
+The conventions of the \pkg{expl3} code are designed to clearly separate the
+ideas of \enquote{macros that contain data} and
+\enquote{macros that contain code}, and a
+consistent wrapper is applied to all forms of \enquote{data} whether they be
+macros or
+actually registers. This means that sometimes we will use phrases like
+\enquote{the function returns a value}, when actually we just mean
+\enquote{the macro expands to something}. Similarly, the term
+\enquote{execute} might be used in place of \enquote{expand}
+or it might refer to the more specific case of
+\enquote{processing in \TeX's stomach}
+(if you are familiar with the \TeX{}book parlance).
+
+If in doubt, please ask; chances are we've been hasty in writing certain
+definitions and need to be told to tighten up our terminology.
+
+\section{Documentation conventions}
+
+This document is typeset with the experimental \pkg{l3doc} class;
+several conventions are used to help describe the features of the code.
+A number of conventions are used here to make the documentation clearer.
+
+Each group of related functions is given in a box. For a function with
+a \enquote{user} name, this might read:
+\begin{function}{\ExplSyntaxOn, \ExplSyntaxOff}
+ \begin{syntax}
+ \cs{ExplSyntaxOn} \dots{} \cs{ExplSyntaxOff}
+ \end{syntax}
+ The textual description of how the function works would appear here. The
+ syntax of the function is shown in mono-spaced text to the right of
+ the box. In this example, the function takes no arguments and so the
+ name of the function is simply reprinted.
+\end{function}
+
+For programming functions, which use \texttt{_} and \texttt{:} in their name
+there are a few additional conventions: If two related functions are given
+with identical names but different argument specifiers, these are termed
+\emph{variants} of each other, and the latter functions are printed in grey to
+show this more clearly. They will carry out the same function but will take
+different types of argument:
+\begin{function}{\seq_new:N, \seq_new:c}
+ \begin{syntax}
+ \cs{seq_new:N} \meta{sequence}
+ \end{syntax}
+ When a number of variants are described, the arguments are usually
+ illustrated only for the base function. Here, \meta{sequence} indicates
+ that \cs{seq_new:N} expects the name of a sequence. From the argument
+ specifier, \cs{seq_new:c} also expects a sequence name, but as a
+ name rather than as a control sequence. Each argument given in the
+ illustration should be described in the following text.
+\end{function}
+
+\paragraph{Fully expandable functions}
+\hypertarget{expstar}{Some functions are fully expandable},
+which allows it to be used within
+an \texttt{x}-type argument (in plain \TeX{} terms, inside an \cs{edef}),
+as well as within an \texttt{f}-type argument.
+These fully expandable functions are indicated in the documentation by
+a star:
+\begin{function}[EXP]{\cs_to_str:N}
+ \begin{syntax}
+ \cs{cs_to_str:N} \meta{cs}
+ \end{syntax}
+ As with other functions, some text should follow which explains how
+ the function works. Usually, only the star will indicate that the
+ function is expandable. In this case, the function expects a \meta{cs},
+ shorthand for a \meta{control sequence}.
+\end{function}
+
+\paragraph{Restricted expandable functions}
+\hypertarget{rexpstar}{A few functions are fully expandable} but cannot be fully expanded within
+an \texttt{f}-type argument. In this case a hollow star is used to indicate
+this:
+\begin{function}[rEXP]{\seq_map_function:NN}
+ \begin{syntax}
+ \cs{seq_map_function:NN} \meta{seq} \meta{function}
+ \end{syntax}
+\end{function}
+
+\paragraph{Conditional functions}
+\hypertarget{explTF}{Conditional (\texttt{if}) functions}
+are normally defined in three variants, with
+\texttt{T}, \texttt{F} and \texttt{TF} argument specifiers. This allows
+them to be used for different \enquote{true}/\enquote{false} branches,
+depending on
+which outcome the conditional is being used to test. To indicate this
+without repetition, this information is given in a shortened form:
+\begin{function}[EXP,TF]{\xetex_if_engine:}
+ \begin{syntax}
+ \cs{xetex_if_engine:TF} \Arg{true code} \Arg{false code}
+ \end{syntax}
+ The underlining and italic of \texttt{TF} indicates that
+ \cs{xetex_if_engine:T}, \cs{xetex_if_engine:F} and
+ \cs{xetex_if_engine:TF} are all available. Usually, the illustration
+ will use the \texttt{TF} variant, and so both \meta{true code}
+ and \meta{false code} will be shown. The two variant forms \texttt{T} and
+ \texttt{F} take only \meta{true code} and \meta{false code}, respectively.
+ Here, the star also shows that this function is expandable.
+ With some minor exceptions, \emph{all} conditional functions in the
+ \pkg{expl3} modules should be defined in this way.
+\end{function}
+
+Variables, constants and so on are described in a similar manner:
+\begin{variable}{\l_tmpa_tl}
+ A short piece of text will describe the variable: there is no
+ syntax illustration in this case.
+\end{variable}
+
+In some cases, the function is similar to one in \LaTeXe{} or plain \TeX{}.
+In these cases, the text will include an extra \enquote{\textbf{\TeX{}hackers
+note}} section:
+\begin{function}[EXP]{\token_to_str:N}
+ \begin{syntax}
+ \cs{token_to_str:N} \meta{token}
+ \end{syntax}
+ The normal description text.
+ \begin{texnote}
+ Detail for the experienced \TeX{} or \LaTeXe\ programmer. In this
+ case, it would point out that this function is the \TeX{} primitive
+ \cs{string}.
+ \end{texnote}
+\end{function}
+
+\section{Formal language conventions which apply generally}
+
+As this is a formal reference guide for \LaTeX3 programming, the descriptions
+of functions are intended to be reasonably \enquote{complete}. However, there
+is also a need to avoid repetition. Formal ideas which apply to general
+classes of function are therefore summarised here.
+
+For tests which have a \texttt{TF} argument specification, the test if
+evaluated to give a logically \texttt{TRUE} or \texttt{FALSE} result.
+Depending on this result, either the \meta{true code} or the \meta{false code}
+will be left in the input stream. In the case where the test is expandable,
+and a predicate (|_p|) variant is available, the logical value determined by
+the test is left in the input stream: this will typically be part of a larger
+logical construct.
+
+\section{\TeX{} concepts not supported by \LaTeX3{}}
+
+The \TeX{} concept of an \enquote{\cs{outer}} macro is \emph{not supported}
+at all by \LaTeX3{}. As such, the functions provided here may break when
+used on top of \LaTeXe{} if \cs{outer} tokens are used in the arguments.
+
+\DisableImplementation
+
+\DocInput{l3bootstrap.dtx}
+\DocInput{l3names.dtx}
+\DocInput{l3basics.dtx}
+\DocInput{l3expan.dtx}
+\DocInput{l3prg.dtx}
+\DocInput{l3quark.dtx}
+\DocInput{l3token.dtx}
+\DocInput{l3int.dtx}
+\DocInput{l3skip.dtx}
+\DocInput{l3tl.dtx}
+\DocInput{l3seq.dtx}
+\DocInput{l3clist.dtx}
+\DocInput{l3prop.dtx}
+\DocInput{l3box.dtx}
+\DocInput{l3coffins.dtx}
+\DocInput{l3color.dtx}
+\DocInput{l3msg.dtx}
+\DocInput{l3keys.dtx}
+\DocInput{l3file.dtx}
+\DocInput{l3fp.dtx}
+% To get the various submodules of l3fp to appear in the implementation
+% part only, they have to be added to the documentation list after typesetting
+% the 'user' part just for the main module.
+\ExplSyntaxOn
+\clist_gput_right:Nn \g_docinput_clist
+ {
+ l3fp-aux.dtx ,
+ l3fp-traps.dtx ,
+ l3fp-round.dtx ,
+ l3fp-parse.dtx ,
+ l3fp-logic.dtx ,
+ l3fp-basics.dtx ,
+ l3fp-extended.dtx ,
+ l3fp-expo.dtx ,
+ l3fp-trig.dtx ,
+ l3fp-convert.dtx ,
+ l3fp-assign.dtx ,
+ l3fp-old.dtx ,
+ }
+\ExplSyntaxOff
+\DocInput{l3luatex.dtx}
+
+\DocInput{l3candidates.dtx}
+
+\endinput
diff --git a/Master/texmf-dist/doc/latex/l3packages/l3keys2e/l3keys2e.pdf b/Master/texmf-dist/doc/latex/l3packages/l3keys2e/l3keys2e.pdf
index 59c9f4f46f0..7bf54fba7fa 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/xfrac/xfrac.pdf b/Master/texmf-dist/doc/latex/l3packages/xfrac/xfrac.pdf
index 16a718576c1..8218721ad20 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 e6c5670bb46..619a074273d 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 93c882f59ff..d773a6d9fb6 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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