texlive[64393] Master: piton (14sep22)

commits+karl at tug.org commits+karl at tug.org
Wed Sep 14 22:06:26 CEST 2022


Revision: 64393
          http://tug.org/svn/texlive?view=revision&revision=64393
Author:   karl
Date:     2022-09-14 22:06:26 +0200 (Wed, 14 Sep 2022)
Log Message:
-----------
piton (14sep22)

Modified Paths:
--------------
    trunk/Master/tlpkg/bin/tlpkg-ctan-check
    trunk/Master/tlpkg/tlpsrc/collection-luatex.tlpsrc

Added Paths:
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    trunk/Master/texmf-dist/doc/lualatex/piton/
    trunk/Master/texmf-dist/doc/lualatex/piton/README.md
    trunk/Master/texmf-dist/doc/lualatex/piton/piton-french.pdf
    trunk/Master/texmf-dist/doc/lualatex/piton/piton-french.tex
    trunk/Master/texmf-dist/doc/lualatex/piton/piton.pdf
    trunk/Master/texmf-dist/source/lualatex/piton/
    trunk/Master/texmf-dist/source/lualatex/piton/piton.dtx
    trunk/Master/texmf-dist/source/lualatex/piton/piton.ins
    trunk/Master/texmf-dist/tex/lualatex/piton/
    trunk/Master/texmf-dist/tex/lualatex/piton/piton.lua
    trunk/Master/texmf-dist/tex/lualatex/piton/piton.sty
    trunk/Master/tlpkg/tlpsrc/piton.tlpsrc

Added: trunk/Master/texmf-dist/doc/lualatex/piton/README.md
===================================================================
--- trunk/Master/texmf-dist/doc/lualatex/piton/README.md	                        (rev 0)
+++ trunk/Master/texmf-dist/doc/lualatex/piton/README.md	2022-09-14 20:06:26 UTC (rev 64393)
@@ -0,0 +1,26 @@
+# Readme for the package piton
+
+Author: F. Pantigny (`fpantigny at wanadoo.fr`).
+
+CTAN page: `https://ctan.org/pkg/piton`
+
+## License
+The LaTeX extension `piton` is distributed under the LPPL 1.3 license.
+
+## Presentation
+
+The LaTeX package `piton` provides a command `\piton` and an environment `{Piton}` to typeset Python codes by using the Lua library LPEG. It requires the use of `lualatex`. It won't work with `xelatex` nor `pdflatex`. 
+
+
+
+## Installation
+
+
+For a manual installation:
+
+* put the files `piton.ins` and `piton.dtx` in the same directory; 
+* run `latex piton.ins` in that directory.
+
+The file `piton.sty` will be generated.
+
+The file `piton.sty` is *not* the only file necessary to use the extension `piton`. The file `piton.lua` is also required. You have to put both in the same directory as your document or (best) in a `texmf` tree.  


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+++ trunk/Master/texmf-dist/doc/lualatex/piton/piton-french.pdf	2022-09-14 20:06:26 UTC (rev 64393)

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--- trunk/Master/texmf-dist/doc/lualatex/piton/piton-french.tex	                        (rev 0)
+++ trunk/Master/texmf-dist/doc/lualatex/piton/piton-french.tex	2022-09-14 20:06:26 UTC (rev 64393)
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+% -*- coding: utf-8 ; -*-
+\documentclass[dvipsnames]{article}
+\usepackage[french]{babel}
+\frenchsetup{og = « , fg = »}
+
+\usepackage[escape-inside=$$]{piton}
+
+\usepackage{xcolor}
+
+\usepackage{geometry}
+\geometry{left=2.8cm,right=2.8cm,top=2.5cm,bottom=2.5cm,papersize={21cm,29.7cm}}
+
+\usepackage{enumitem}
+\usepackage{verbatim}
+\usepackage{amsmath}
+\usepackage{tabularx}
+\usepackage{booktabs}
+
+\usepackage{caption}
+\captionsetup{labelfont = bf}
+
+% We use \MakeShortVerb of shortvrb and not \DefineShortVerb of fancyvrb
+% because we don't want the contents of short verbatim colored in gray
+\usepackage{shortvrb}
+\MakeShortVerb{\|}
+
+
+\skip\footins = 2\bigskipamount
+
+\usepackage{fancyvrb}
+\fvset{commandchars=\~\#\@,formatcom=\color{gray}}
+\def\emphase{\bgroup\color{RoyalPurple}\let\next=}
+
+
+\usepackage{titlesec}
+\titlespacing*{\section}{0pt}{6.5ex plus 1ex minus .2ex}{4.3ex plus .2ex}
+\titlespacing*{\subsection}{0pt}{4.5ex plus 1ex minus .2ex}{2ex plus .2ex}
+
+\def\interitem{\vspace{7mm plus 2 mm minus 3mm}}          
+
+
+\usepackage{footnote}
+
+\usepackage[hyperfootnotes = false]{hyperref}
+
+\hypersetup
+  {
+    pdfinfo = 
+      {
+        Title = L’extension piton ,
+        Subject = Une extension LaTeX ,
+        Author = F. Pantigny 
+      }
+  } 
+
+
+\NewDocumentEnvironment {scope} {} {} {}
+
+\NewDocumentCommand {\pkg} {m} {\textsf{#1}}
+\NewDocumentCommand {\cls} {m} {\textsf{#1}}
+
+\setlength{\parindent}{0pt}
+
+
+\begin{document}
+
+\VerbatimFootnotes
+
+
+\title{L'extension LaTeX \pkg{piton}\thanks{Ce document correspond à la 
+version~\myfileversion\space de \pkg{piton}, à la date du~\myfiledate.}} 
+\author{F. Pantigny \\ \texttt{fpantigny at wanadoo.fr}}
+
+\maketitle
+
+\begin{abstract}
+L'extension \pkg{piton} propose des outils pour composer du code Python avec une coloration syntaxique
+en utilisant la bibliothèque Lua LPEG. L'extension \pkg{piton} nécessite l'emploi de LuaLaTeX.
+\end{abstract}
+
+\section{Présentation}
+
+L'extension \pkg{piton} utilise la librarie Lua nommée LPEG\footnote{LPEG est une librairie de capture de motifs
+  (\emph{pattern-matching} en anglais) pour Lua, écrite en C, fondée sur les PEG (\emph{parsing expression
+    grammars}): \url{http://www.inf.puc-rio.br/~roberto/lpeg/}} pour «parser» le code Python et le composer avec un
+coloriage syntaxique. Comme elle utilise du code Lua, elle fonctionne uniquement avec |lualatex| (et ne va pas
+fonctionner avec les autres moteurs de compilation LaTeX, que ce soit |latex|, |pdflatex| ou |xelatex|). Elle
+n'utilise aucun programme extérieur et la compilation ne requiert donc pas |--shell-escape|. La compilation est
+très rapide puisque tout le travail du parseur est fait par la librairie LPEG, écrite en C.
+
+\bigskip
+Voici un exemple de code Python composé avec l'environnement |{Piton}| proposé par \pkg{piton}.
+
+\bigskip
+\begin{Piton}
+from math import pi
+
+def arctan(x,n=10):
+    """Compute the value of arctan(x)
+       n is the number of terms if the sum"""
+    if x < 0:
+         return -arctan(-x) # recursive call
+    elif x > 1: 
+         return pi/2 - arctan(1/x) 
+         ## (on a utilisé le fait que $\arctan(x)+\arctan(1/x)=\frac{\pi}{2}$ pour $x>0$)\footnote{Cet échappement vers LaTeX a été obtenu en débutant par \ttfamily\#\#.}
+    else 
+         s = 0
+         for k in range(n):
+              s += (-1)**k/(2*k+1)*x**(2*k+1)
+         return s 
+\end{Piton}
+
+
+
+\section{Installation}
+
+L'extension \pkg{piton} est composée de deux fichiers : |piton.sty| et |piton.lua| (le fichier LaTeX |piton.sty|
+chargé par |\usepackage| va à son tour charger le fichier |piton.lua|). Les deux fichiers doivent être présents
+dans un répertoire où LaTeX pourra les trouver. Le mieux est de les installer dans une arborescence |texmf|.
+
+
+\section{Utilisation de l'extension}
+
+Pour utiliser l'extension \pkg{piton}, l'utilisateur final a seulement à charger l'extension dans son document avec
+la commande classique |\usepackage| et se souvenir que la compilation doit être faite avec LuaLaTeX. 
+
+\medskip
+L'extension \pkg{piton} fournit trois outils pour composer du code Python: la commande |\piton|, l'environnement
+|{Piton}| et la commande |\PitonInputFile|.
+
+\begin{itemize}
+\item La commande |\piton| doit être utilisée pour composer de petits éléments de code à l'intérieur d'un
+paragraphe. \emph{Attention} : Cette fonction prend son argument en mode \emph{verbatim} (comme la commande
+\verb|\verb|) et, de ce fait, cette fonction ne peut pas être utilisée à l'intérieur d'un argument d'une autre
+fonction (on peut néanmoins l'utiliser à l'intérieur d'un environnement).
+
+\item L'environnement |{Piton}| doit être utilisé pour composer des codes de plusieurs lignes. 
+
+\item La commande |\PitonInputFile| doit être utilisée pour insérer et composer un fichier extérieur.
+\end{itemize}
+
+\bigskip
+Il est possible de composer des commentaires en LaTeX en commençant par |##| (c'est un échappement vers LaTeX). Les
+caractères |##| eux-mêmes ne seront pas imprimés.
+
+
+\section{Personnalisation}
+
+\subsection{La commande \textbackslash PitonOptions}
+
+La commande |\PitonOptions| propose quatre clés : |gobble|, |auto-gobble|, |line-numbers| et |all-line-numbers|.
+
+\begin{itemize}
+\item La clé |gobble| peut comme valeur un entier positif $n$ : les $n$ premiers caractères de chaque ligne sont
+alors retirés (avant formatage du code) dans les environnements |{Piton}|.
+
+\item Quand la clé |auto-gobble| est activée, l'extension \pkg{piton} détermine la valeur minimale $n$ du nombre
+d'espaces successifs débutant chaque ligne (non vide) de l'environnment |{Piton}| et applique |gobble| avec cette
+valeur de~$n$.
+
+\item Avec la clé |line-numbers|, les lignes \emph{non vides} sont numérotées dans les environnements \verb|{Piton}|
+et dans les listings produits par la commande |\PitonInputFile|.
+
+\item Avec la clé |all-line-numbers|, \emph{toutes} les lignes sont numérotées, y compris les lignes vides.
+\end{itemize}
+
+\bigskip
+
+\begingroup
+\fvset{commandchars=\~\&\@,formatcom=\small\color{gray}}
+\begin{Verbatim}
+~emphase&\PitonOptions{line-numbers,auto-gobble}@
+\begin{Piton}
+    from math import pi
+
+    def arctan(x,n=10):
+        """Compute the value of arctan(x)
+           n is the number of terms if the sum"""
+        if x < 0:
+             return -arctan(-x) # recursive call
+        elif x > 1: 
+             return pi/2 - arctan(1/x) 
+             ## (on a utilisé le fait que $\arctan(x)+\arctan(1/x)=\frac{\pi}{2}$ pour $x>0$)
+        else 
+             s = 0
+             for k in range(n):
+                  s += (-1)**k/(2*k+1)*x**(2*k+1)
+             return s 
+\end{Piton}
+\end{Verbatim}
+\endgroup
+
+\begingroup
+\PitonOptions{line-numbers,auto-gobble}
+\begin{Piton}
+    from math import pi
+
+    def arctan(x,n=10):
+        """Compute the value of arctan(x)
+           n is the number of terms if the sum"""
+        if x < 0:
+             return -arctan(-x) # recursive call
+        elif x > 1: 
+             return pi/2 - arctan(1/x) 
+             ## (on a utilisé le fait que $\arctan(x)+\arctan(1/x)=\frac{\pi}{2}$ pour $x>0$)
+        else 
+             s = 0
+             for k in range(n):
+                  s += (-1)**k/(2*k+1)*x**(2*k+1)
+             return s 
+\end{Piton}
+\endgroup
+
+\subsection{L'option escape-inside}
+
+L'option |escape-inside| doit être utilisée au chargement de \pkg{piton} (c'est-à-dire dans l'instruction
+|\usepackage|). Pour des raisons techniques, elle ne peut pas être fixée dans |\PitonOptions|. Elle prend comme
+valeur deux caractères qui seront utilisés pour délimiter des parties qui seront composées en LaTeX.
+
+
+\bigskip
+Dans l'exemple suivant, on suppose que l'extension \pkg{piton} a été chargée de la manière suivante :
+
+\smallskip
+\begin{Verbatim}
+\usepackage[~emphase#escape-inside=$$@]{piton}
+\end{Verbatim}
+
+\medskip
+Dans le code suivant, qui est une programmation récursive de la factorielle, on décide de surligner en jaune
+l'instruction qui contient l'appel récursif.
+\begin{Verbatim}
+\begin{Piton}
+def fact(n):
+    if n==0:
+        return 1
+    else:
+        ~emphase#$\colorbox{yellow!50}{$@return n*fact(n-1)~emphase#$}$@
+\end{Piton}
+\end{Verbatim}
+
+\begin{Piton}
+def fact(n):
+    if n==0:
+        return 1
+    else:
+        $\colorbox{yellow!50}{$return n*fact(n-1)$}$
+\end{Piton}
+
+\bigskip
+\emph{Attention} : L'échappement vers LaTeX permis par les caractères de |escape-inside| n'est pas actif dans les
+chaînes de caractères ni dans les commentaires (pour avoir un commentaire entièrement en échappement vers LaTeX,
+il suffit de le faire débuter par |##|).
+
+\subsection{Les styles}
+
+L'extension \pkg{piton} fournit la commande |\SetPitonStyle| pour personnaliser les différents styles utilisés pour
+formater les éléments syntaxiques des listings Python. Ces personnalisations ont une portée qui correspond au
+groupe TeX courant.
+
+\bigskip
+La commande |\SetPitonStyle| prend en argument une liste de couples \textsl{clé=valeur}. Les clés sont les noms des
+styles et les valeurs sont les instructions LaTeX de formatage correspondantes.
+
+\bigskip
+Ces instructions LaTeX doivent être des instructions de formatage du type de |\color{...}|, |\bseries|,
+|\slshape|, etc. (les commandes de ce type sont parfois qualifiées de \emph{semi-globales}). Il est aussi possible
+de mettre, \emph{à la fin de la liste d'instructions}, une commande LaTeX prenant exactement un
+argument.
+
+\bigskip
+Voici un exemple qui change le style utilisé pour le nom d'une fonction Python, au moment de sa définition
+(c'est-à-dire après le mot-clé |def|).
+
+\begin{Verbatim}
+\SetPitonStyle
+  { Name.Function = \bfseries \setlength{\fboxsep}{1pt}\colorbox{yellow!50} }
+\end{Verbatim}
+
+Dans cet exemple, |\colorbox{yellow!50}| doit être considéré comme le nom d'une fonction LaTeX qui prend exactement
+un argument, puisque, habituellement, elle est utilisée avec la syntaxe |\colorbox{yellow!50}{text}|.
+
+\medskip
+\begingroup
+\SetPitonStyle 
+  { Name.Function = \bfseries \setlength{\fboxsep}{1pt}\colorbox{yellow!50} }
+Avec ce réglage, on obtient : \piton{def cube(x) : return x * x * x }
+\endgroup
+
+
+
+\medskip
+Les différents styles sont décrits dans la table \ref{Semantic}.
+
+\begin{table}[htb]
+\centering
+\caption{Usage des différents styles}
+\label{Semantic}
+\begin{tabularx}{0.9\textwidth}{@{}>{\ttfamily}l>{\raggedright\arraybackslash}X@{}}
+\toprule
+\normalfont Style  & Usage \\
+\midrule
+Number & les nombres \\
+String.Short & les chaînes de caractères courtes (entre \texttt{'} ou \texttt{"}) \\
+String.Long & les chaînes de caractères longues (entre \texttt{'''} ou \texttt{"""}) sauf les chaînes de
+              documentation \\
+String & cette clé fixe à la fois |String.Short| et |String.Long| \\
+String.Doc & les chaînes de documentation \\
+String.Interpol & les éléments syntaxiques des champs des f-strings (c'est-à-dire les caractères \texttt{\{}, \texttt{\}} et \texttt{:}) \\
+Operator & les opérateurs suivants : \texttt{!= == << >> - \~{} + / * \% = < > \& .} \verb+|+ \verb|@| \\
+Operator.Word & les opérateurs suivants : |in|, |is|, |and|, |or| et |not| \\
+Name.Builtin & la plupart des fonctions prédéfinies par Python \\
+Name.Function & le nom des fonctions définies par l'utilisateur \emph{au moment de leur définition}, c'est-à-dire 
+                après le mot-clé \verb|def| \\ 
+Name.Decorator & les décorateurs (instructions débutant par \verb|@| dans les classes) \\
+Name.Namespace & le nom des modules (= bibliothèques extérieures) \\
+Name.Class & le nom des classes au moment de leur définition \\
+Exception & le nom des exceptions prédéfinies (eg: SyntaxError) \\
+Comment & les commentaires commençant par \texttt{\#} \\
+Comment.LaTeX & les commentaires commençant par \texttt{\#\#} qui sont composés en LaTeX par \pkg{piton}
+                (\texttt{\#\#} est une séquence d'échappement vers LaTeX) \\
+Keyword.Constant & |True|, |False| et |None| \\
+Keyword & les mots-clés suivants :
+          \ttfamily assert, break, case, continue, del,
+          elif, else, except, exec, finally, for, from, 
+          global, if, import, lambda, non local,
+          pass, raise, return, try, while,
+          with, yield, yield from.\\
+  \bottomrule
+\end{tabularx}
+\end{table}
+
+
+
+\subsection{Définition de nouveaux environnements}
+
+Comme l'environnement |{Piton}| a besoin d'absorber son contenu d'une manière spéciale (à peu près comme du texte
+verbatim), il n'est pas possible de définir de nouveaux environnements directement au-dessus de l'environnement
+|{Piton}|.
+
+C'est pourquoi \pkg{piton} propose une commande |\NewPitonEnvironment|. Cette commande a la même syntaxe que la
+commande classique |\NewDocumentEnvironment|.
+
+\bigskip
+Par exemple, avec l'instruction suivante, un nouvel environnement |{Python}| sera défini avec le même comportement
+que l'environnement |{Piton}|:
+
+\verb|\NewPitonEnvironment{Python}{}{}{}|
+
+\bigskip
+Si on souhaite un environnement |{Python}| qui compose le code inclus dans une boîte de \pkg{tcolorbox}, on peut
+écrire:
+
+\begin{verbatim}
+\NewPitonEnvironment{Python}{}
+  {\begin{tcolorbox}}
+  {\end{tcolorbox}}
+\end{verbatim}
+
+
+\end{document}
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--- trunk/Master/texmf-dist/doc/lualatex/piton/piton.pdf	2022-09-14 20:05:16 UTC (rev 64392)
+++ trunk/Master/texmf-dist/doc/lualatex/piton/piton.pdf	2022-09-14 20:06:26 UTC (rev 64393)

Property changes on: trunk/Master/texmf-dist/doc/lualatex/piton/piton.pdf
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--- trunk/Master/texmf-dist/source/lualatex/piton/piton.dtx	                        (rev 0)
+++ trunk/Master/texmf-dist/source/lualatex/piton/piton.dtx	2022-09-14 20:06:26 UTC (rev 64393)
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+% \iffalse meta-comment
+%
+% Copyright (C) 2022 by F. Pantigny
+% -----------------------------------
+%
+% This file may be distributed and/or modified under the
+% conditions of the LaTeX Project Public License, either version 1.3
+% of this license or (at your option) any later version.
+% The latest version of this license is in:
+%
+% http://www.latex-project.org/lppl.txt
+%
+% and version 1.3 or later is part of all distributions of LaTeX
+% version 2005/12/01 or later.
+%
+% \fi
+% \iffalse
+\def\myfileversion{0.6}
+\def\myfiledate{2022/09/14}
+%
+%
+%<*batchfile> 
+\begingroup
+\input l3docstrip.tex
+\keepsilent
+\usedir{tex/latex/cascade}
+\preamble
+
+Copyright (C) 2022 by F. Pantigny
+-----------------------------------
+
+This file may be distributed and/or modified under the
+conditions of the LaTeX Project Public License, either version 1.3
+of this license or (at your option) any later version.
+The latest version of this license is in:
+
+http://www.latex-project.org/lppl.txt
+
+and version 1.3 or later is part of all distributions of LaTeX
+version 2005/12/01 or later.
+
+\endpreamble
+\askforoverwritefalse
+\endgroup
+%</batchfile>
+%
+%<@@=piton>
+%<*driver>
+\documentclass{l3doc}
+\usepackage{geometry}
+\geometry{left=2.8cm,right=2.8cm,top=2.5cm,bottom=2.5cm,papersize={21cm,29.7cm}}
+\usepackage{fontspec}
+\usepackage[dvipsnames]{xcolor}
+\usepackage{caption,tabularx}
+\def\emphase{\bgroup\color{RoyalPurple}\let\next=}
+\fvset{commandchars=\~\#\@,formatcom=\color{gray}}
+\captionsetup{labelfont = bf}
+\usepackage{ragged2e}
+\usepackage[escape-inside=$$]{piton} % $$
+
+\def\interitem{\vskip 7mm plus 2 mm minus 3mm}          
+\parindent 0pt
+\skip\footins = 2\bigskipamount
+
+\begin{filecontents}[noheader,overwrite]{example1.txt}
+from math import pi
+
+def arctan(x,n=10):
+    """Compute the value of arctan(x)
+       n is the number of terms if the sum"""
+    if x < 0:
+         return -arctan(-x) # recursive call
+    elif x > 1: 
+         return pi/2 - arctan(1/x) 
+         ## (we have used that $\arctan(x)+\arctan(1/x)=\frac{\pi}{2}$ for $x>0$)\footnote{This LaTeX escape has been done by beginning the comment by \ttfamily\#\#}
+    else 
+         s = 0
+         for k in range(n):
+              s += (-1)**k/(2*k+1)*x**(2*k+1)
+         return s 
+\end{filecontents}
+
+\begin{filecontents}[noheader,overwrite]{example2.txt}
+def fact(n):
+    if n==0:
+        return 1
+    else:
+        $\colorbox{yellow!50}{$return n*fact(n-1)$}$
+\end{filecontents}
+
+
+\EnableCrossrefs
+
+\begin{document}
+\DocInput{piton.dtx}
+\end{document}
+%</driver>
+
+% \fi
+% \title{The package \pkg{piton}\thanks{This document corresponds to the
+% version~\myfileversion\space of \pkg{piton}, at the date of~\myfiledate.}} 
+% \author{F. Pantigny \\ \texttt{fpantigny at wanadoo.fr}}
+%
+% \maketitle
+%
+% \begin{abstract}
+% The package \pkg{piton} provides tools to typeset Python listings with
+% syntactic highlighting by using the Lua library LPEG. It requires LuaLaTeX.
+% \end{abstract}
+% 
+% 
+% \section{Presentation}
+% 
+%
+% The package \pkg{piton} uses the Lua library LPEG\footnote{LPEG is a
+% pattern-matching library for Lua, written in C, based on \emph{parsing
+% expression grammars}: \url{http://www.inf.puc-rio.br/~roberto/lpeg/}} for
+% parsing Python listings and typeset them with syntactic highlighting. Since it
+% uses Lua code, it works with |lualatex| only (and won't work with the other
+% engines: |latex|, |pdflatex| and |xelatex|). It does not use external program
+% and the compilation does not require |--shell-escape|. The compilation is very
+% fast since all the parsing is done by the library LPEG, written in C.
+% 
+% \bigskip
+% Here is an exemple of code typeset by \pkg{piton}, with the environment |{Piton}|.
+%
+% \bigskip
+% \PitonInputFile{Example1.txt}
+%
+%
+% \section{Installation}
+% 
+% The package \pkg{piton} is contained in two files: |piton.sty| and
+% |piton.lua| (the LaTeX file |piton.sty| loaded by |\usepackage| will load the
+% Lua file |piton.lua|). Both files must be in a repertory where LaTeX will be
+% able to find them. The best way is to install them in a |texmf| tree.
+% 
+% 
+% \section{Use of the package}
+%
+% In order to use the package \pkg{piton}, one has only to load the package in
+% its document with the standard command |\usepackage| and remember that the
+% compilation must be done with |lualatex| (and no other LaTeX engine).
+%
+% \medskip
+% The package \pkg{piton} provides three tools to typeset Python code: the
+% command |\piton|, the environment |{Piton}| and the command |\PitonInputFile|.
+%
+% \begin{itemize}
+% \item The command |\piton| should be used to typeset small pieces of code
+% inside a paragraph. \emph{Caution}: That fonction takes in its argument
+% \emph{verbatim}. Therefore, it cannot be used in the argument of another
+% command (however, it can be used within an environment).
+% \item The environment |{Piton}| should be used to typeset multi-lines code.
+% 
+% \item The command |\PitonInputFile| is used to insert and typeset a whole
+% external file. 
+% \end{itemize}
+%
+% \bigskip
+% It's possible to compose comments in LaTeX by beginning with |##| (it's a
+% ``LaTeX escape''). The characters |##| themselves won't be printed.
+% 
+% \section{Customization}
+%
+% \subsection{The command \textbackslash PitonOptions}
+%
+% The command |\PitonOptions| provides four keys: |gobble|, |auto-gobble|,
+% |line-numbers| and |all-line-numbers|.
+%
+% \begin{itemize}
+% \item The key |gobble| takes in as value a positive integer~$n$: the first $n$
+% characters are discarded (before the process of hightlighning of the code) for
+% each line of the environment |{Piton}|.
+%
+% \item Then the key |auto-gobble| is in force, the extnsion \pkg{piton} compute
+% the minimal value $n$ of the number of consecutives space beginning each (non
+% empty) line of the environment |{Piton}| and applies |gobble| with that value
+% of~$n$.
+%
+% \item With the key |line-numbers|, the \emph{non empty} lines are numbered in
+% the environments |{Piton}| and in the listings resulting from the use of
+% |\PitonInputFile|.
+% 
+% \item With the key |all-line-numbers|, \emph{all} the lines are numbered,
+% including the empty ones.
+% \end{itemize}
+%
+% \bigskip
+%
+% \begingroup
+% \fvset{commandchars=\~\&\@,formatcom=\small\color{gray}}
+% \begin{Verbatim}
+% ~emphase&\PitonOptions{line-numbers,auto-gobble}@
+% \begin{Piton}
+%     from math import pi
+%
+%     def arctan(x,n=10):
+%         """Compute the value of arctan(x)
+%            n is the number of terms if the sum"""
+%         if x < 0:
+%              return -arctan(-x) # recursive call
+%         elif x > 1: 
+%              return pi/2 - arctan(1/x) 
+%              ## (on a utilisé le fait que $\arctan(x)+\arctan(1/x)=\frac{\pi}{2}$ pour $x>0$)
+%         else 
+%              s = 0
+%              for k in range(n):
+%                   s += (-1)**k/(2*k+1)*x**(2*k+1)
+%              return s 
+% \end{Piton}
+% \end{Verbatim}
+% \endgroup
+%
+%
+% \begingroup
+% \PitonOptions{line-numbers,auto-gobble}
+% \PitonInputFile{Example1.txt}
+% \endgroup
+% 
+% \subsection{The option escape-inside}
+%
+% The option |escape-inside| must be used when loading the package \pkg{piton}
+% (that is to say in the instruction |\usepackage|). For technical reasons, it
+% can't be used in the command |\PitonOptions|. That option takes in as value
+% two characters which will be used to delimit pieces of code which will
+% composed in LaTeX.
+%
+% \medskip
+% In the following example, we assume that the extension \pkg{piton} has been
+% loaded by the following instruction.
+%
+% \begin{Verbatim}
+% \usepackage[~emphase#escape-inside=$$@]{piton}
+% \end{Verbatim}
+%
+% \medskip
+% In the following code, which is a recursive programmation of the mathematical
+% factorial, we decide to highlight in yellow the instruction which contains the
+% recursive call. 
+% \begin{Verbatim}
+% \begin{Piton}
+% def fact(n):
+%     if n==0:
+%         return 1
+%     else:
+%         ~emphase#$\colorbox{yellow!50}{$@return n*fact(n-1)~emphase#$}$@
+% \end{Piton}
+% \end{Verbatim}
+%
+% \PitonInputFile{Example2.txt}
+%
+% \bigskip
+%
+% \emph{Caution} : The escape to LaTeX allowed by the characters of
+% |escape-inside| is not active in the strings nor in the Python comments
+% (however, it's possible to have a whole Python comment composed in LaTeX by
+% beginning it with |##|). 
+%
+%
+% \subsection{The styles}
+%
+% The package \pkg{piton} provides the command |\SetPitonStyle| to customize the
+% different styles used to format the syntactic elements of the Python listings.
+% The customizations done by that command are limited to the current TeX group.
+%
+% \bigskip
+% The command |\SetPitonStyle| takes in as argument a comma-separated list of
+% \textsl{key=value} pairs. The keys are names of styles and the value are LaTeX
+% formatting instructions.
+%
+% \bigskip
+% These LaTeX instructions must be formatting instructions such as
+% |\color{...}|, |\bfseries|, |\slshape|, etc. (the commands of this kind are
+% sometimes called \emph{semi-global} commands). It's also possible to put,
+% \emph{at the end of the list of instructions}, a LaTeX command taking exactly
+% one argument.
+% 
+% \bigskip
+% Here an example which changes the style used to highlight, in the definition
+% of a Python function, the name of the function which is defined.
+%
+% \begin{verbatim}
+% \SetPitonStyle 
+%   { Name.Function = \bfseries \setlength{\fboxsep}{1pt}\colorbox{yellow!50} }
+% \end{verbatim}
+%
+% In that example, |\colorbox{yellow!50}| must be considered as the name of a
+% LaTeX command which takes in exactly one argument, since, usually, it is used
+% with the syntax |\colorbox{yellow!50}{text}|.
+%
+% \medskip
+% \begingroup
+% \SetPitonStyle 
+%   { Name.Function = \bfseries \setlength{\fboxsep}{1pt}\colorbox{yellow!50} }
+% With that setting, we will have : \piton{def cube(x) : return x * x * x }
+% \endgroup
+% 
+% \medskip
+% The different styles are described in the table \ref{Semantic}.
+%
+%
+%
+% \begin{table}[b]
+% \centering
+% \caption{Usage of the different styles}
+% \label{Semantic}
+% \begin{tabular}{@{}>{\ttfamily}l>{\RaggedRight\arraybackslash}p{9cm}@{}}
+% \toprule
+% \normalfont Style  & Usage \\
+% \midrule
+% Number & the numbers \\
+% String.Short & the short strings (between \texttt{'} or \verb|"|) \\
+% String.Long & the long strings (between \texttt{'''} or \verb|"""|) except the
+% documentation strings \\ 
+% String & that keys sets both |String.Short| and |String.Long| \\
+% String.Doc & the documentation strings \\
+% String.Interpol & the syntactic elements of the fields of the f-strings (that
+% is to say the characters \texttt{\{}, \texttt{\}} and \texttt{:}) \\
+% Operator & the following operators : \texttt{!= == << >> - \~{} + / * \% = < > \& .} \verb+|+ \verb|@|\\
+% Operator.Word & the following operators : \texttt{in}, \texttt{is},
+% \texttt{and}, \texttt{or} et \texttt{not} \\ 
+% Name.Builtin & the predefined functions of Python \\
+% Name.Function & the name of the functions defined by the user, at the point of
+% their definition (that is to say after the keyword |def|) \\
+% Name.Decorator & the decorators (instructions beginning by \verb|@| in the classes) \\
+% Name.Namespace & the name of the modules (= external libraries) \\
+% Name.Class & the name of the classes at the point of their definition \\
+% Exception & the names of the exceptions (eg: \texttt{SyntaxError}) \\
+% Comment & the comments beginning with \verb|#| \\
+% LaTeX & the comments beginning by \verb|##| which are composed in LaTeX by
+% \pkg{piton} (\verb|##| is an espace sequence to LaTeX) \\
+% Keyword.Constant & |True|, |False| and |None| \\
+% Keyword & the following keywords :
+%           \ttfamily assert, break, case, continue, del,
+%           elif, else, except, exec, finally, for, from, 
+%           global, if, import, lambda, non local,
+%           pass, raise, return, try, while,
+%           with, yield, yield from.\\
+% \bottomrule 
+% \end{tabular}
+% \end{table}
+%
+%
+%
+% 
+% \subsection{Creation of new environments}
+%
+% Since the environment |{Piton}| has to catch its body in a special way (more
+% or less as verbatim text), it's not possible to construct new environments
+% directly over the environment |{Piton}|
+%
+% That's why \pkg{piton} provides a command |\NewPitonEnvironment|. That
+% command takes in three mandatory arguments. 
+
+% That command has the same syntax as the classical environment
+% |\NewDocumentEnvironment|.
+% 
+% \bigskip
+% With the following instruction, a new environment |{Python}| will be
+% constructed with the same behaviour as |{Piton}|:
+%
+% \verb|\NewPitonEnvironment{Python}{}{}{}|
+% 
+% \bigskip
+% If on wished to format Python code in a box in a box of \pkg{tcolorbox}, it's
+% possible to define an environment |{Python}| with the following code:
+%
+%\begin{verbatim}
+% \NewPitonEnvironment{Python}{}
+%   {\begin{tcolorbox}}
+%   {\end{tcolorbox}}
+% \end{verbatim}
+%
+%
+% \clearpage
+%
+% \section{Implementation}
+%
+%     \begin{macrocode}
+\NeedsTeXFormat{LaTeX2e}
+\RequirePackage{l3keys2e}
+\ProvidesExplPackage
+  {piton}
+  {\myfiledate}
+  {\myfileversion}
+  {Highlight Python codes with LPEG on LuaLaTeX}
+%    \end{macrocode}
+%
+% \bigskip
+% We define a set of keys |piton/package| for these options.
+%    \begin{macrocode}
+\keys_define:nn { piton / package }
+  { 
+    escape-inside .tl_set:N = \c_@@_escape_inside_tl ,
+    unknown .code:n = \msg_error:nn { piton } { unknown~key~for~package }
+  }
+%    \end{macrocode}
+%
+%    \begin{macrocode}
+\msg_new:nnn { piton } { unknown~key~for~package }
+  {
+    Unknown~key\\
+    You~have~used~the~key~'\l_keys_key_str'~but~the~only~key~available~here~
+    is~the~key~'escape-inside'.\\
+    That~key~will~be~ignored.
+  }
+%    \end{macrocode}
+% 
+% \bigskip
+%    \begin{macrocode}
+\tl_clear_new:N \c_@@_escape_inside_tl
+%    \end{macrocode}
+%
+% We process the options when the package is loaded (with |\usepackage|).
+%    \begin{macrocode}
+\ProcessKeysOptions { piton / package }
+%    \end{macrocode}
+%
+% \bigskip
+%    \begin{macrocode}
+\begingroup
+\cs_new_protected:Npn \@@_set_escape_char:nn #1 #2 
+  {
+    \directlua { begin_escape = "#1" }
+    \directlua { end_escape = "#2" }
+  }
+\cs_generate_variant:Nn \@@_set_escape_char:nn { x x }
+\@@_set_escape_char:xx 
+  { \tl_head:V \c_@@_escape_inside_tl }
+  { \tl_tail:V \c_@@_escape_inside_tl }
+\endgroup
+%    \end{macrocode}
+% 
+% \bigskip
+%    \begin{macrocode}
+\msg_new:nnn { piton } { LuaLaTeX~mandatory }
+  { The~package~'piton'~must~be~used~with~LuaLaTeX.\\ It~won't~be~loaded. }
+\sys_if_engine_luatex:F { \msg_critical:nn { piton } { LuaLaTeX~mandatory } }
+%    \end{macrocode}
+% 
+% \bigskip
+%    \begin{macrocode}
+\RequirePackage { luatexbase } 
+%    \end{macrocode}
+% 
+% \bigskip
+%    \begin{macrocode}
+\msg_new:nnn { piton } { piton.lua~not~found }
+  { 
+    The~file~'piton.lua'~can't~be~found.\\ 
+    The package~'piton'~won't be loaded.
+  }
+%    \end{macrocode}
+%
+% \bigskip
+%    \begin{macrocode}
+\file_if_exist:nF { piton.lua }
+  { \msg_critical:nn { piton } { piton.lua~not~found} }
+%    \end{macrocode}
+% 
+%    \begin{macrocode}
+\lua_now:e { require("piton.lua") }
+%    \end{macrocode}
+% 
+% \bigskip
+% The following function has not a name with the conventions of L3 because it
+% will be used in the Lua code.
+%    \begin{macrocode}
+\cs_new:Npn \pitonEOL 
+  { 
+    \par \leavevmode 
+    \@@_print_number:
+  }
+%    \end{macrocode}
+%
+% \medskip
+%    \begin{macrocode}
+\cs_new_protected:Npn \@@_print_number:
+  { \bool_if:NT \l_@@_line_numbers_bool \@@_actually_print_number: }
+%    \end{macrocode}
+%
+% \medskip
+%    \begin{macrocode}
+\cs_new_protected:Npn \@@_actually_print_number:
+  {
+%    \end{macrocode}
+% The empty lines in the code are not numbered.
+%    \begin{macrocode}
+    \bool_if:NF \l_@@_all_line_numbers_bool
+      { \peek_meaning:NF \pitonEOL }
+    \@@_actually_print_number_i: 
+  }
+%    \end{macrocode}
+%
+%    \begin{macrocode}
+\cs_new_protected:Npn \@@_actually_print_number_i:
+  {
+    \int_incr:N \l_@@_lineno_int 
+    \hbox_overlap_left:n
+      { 
+        { \color{gray} \footnotesize \int_to_arabic:n \l_@@_lineno_int }
+        \quad 
+      }
+  }
+%    \end{macrocode}
+% 
+% \bigskip
+% The following counter will be used to count the lines in the code when the
+% user requires the numbers of the lines to be printed.
+%    \begin{macrocode}
+\int_new:N \l_@@_lineno_int 
+%    \end{macrocode}
+% 
+% \bigskip
+% The following integer is the number of characters to gobble on the left side
+% of the Python listings. Of course, the initial value is $0$.
+%    \begin{macrocode}
+\int_new:N \l_@@_gobble_int 
+%    \end{macrocode}
+%
+%
+% \bigskip
+%    \begin{macrocode}
+\cs_new_protected:Npn \@@_define_trim_syntax:n #1
+  { \lua_now:n { define_trim_syntax(#1) } }
+%    \end{macrocode}
+% 
+% \bigskip
+%    \begin{macrocode}
+\NewDocumentCommand { \piton } { v }
+  {
+    \group_begin:
+    \ttfamily
+    \lua_now:e { Parse(token.scan_argument()) } { #1 }
+    \group_end:
+  }
+%    \end{macrocode}
+% 
+% \bigskip
+%    \begin{macrocode}
+\NewDocumentCommand { \PitonInputFile } { m }
+  {
+    \group_begin:
+      \ttfamily
+      \bool_if:NT \l_@@_line_numbers_bool 
+        { 
+          \@@_actually_print_number:
+          \vspace{-\baselineskip}
+        }
+      \lua_now:e { ParseFile(token.scan_argument()) } { #1 }
+    \group_end:
+  }
+%    \end{macrocode}
+%
+% \subsection{PitonOptions}
+%
+%    \begin{macrocode}
+\bool_new:N \l_@@_line_numbers_bool 
+\bool_new:N \l_@@_all_line_numbers_bool 
+%    \end{macrocode}
+% 
+%    \begin{macrocode}
+\keys_define:nn { piton / PitonOptions }
+  {
+    gobble           .int_set:N         = \l_@@_gobble_int , 
+    gobble           .value_required:n  = true ,
+    auto-gobble      .code:n            = \int_set:Nn \l_@@_gobble_int { -1 } , 
+    auto-gobble      .value_forbidden:n = true ,
+    line-numbers     .bool_set:N        = \l_@@_line_numbers_bool ,
+    line-numbers     .default:n         = true ,
+    all-line-numbers .code:n = 
+      \bool_set_true:N \l_@@_line_numbers_bool 
+      \bool_set_true:N \l_@@_all_line_numbers_bool ,
+    all-line-numbers .value_forbidden:n = true
+  }
+%    \end{macrocode}
+%
+% \bigskip
+% The argument of |\PitonOptions| is provided by currification.
+%    \begin{macrocode}
+\NewDocumentCommand \PitonOptions { }
+  { \keys_set:nn { piton / PitonOptions } }
+%    \end{macrocode}
+% 
+% \bigskip 
+%    \begin{macrocode}
+\NewDocumentCommand { \NewPitonEnvironment } { m m m m }
+  {
+%    \end{macrocode}
+% We construct a TeX macro which will catch as its argument all the tokens
+% until \textsl{\texttt{newline}} + |\end{Piton}| with, in that
+% \textsl{\texttt{newline}}| + \end{Piton}|, the catcode of
+% \textsl{\texttt{newline}}, |\|, |{| and |}| equal to 12 (``\texttt{other}'').
+% The latter explains why the definition of that function is a bit complicated.
+%    \begin{macrocode}
+    \use:x 
+      { 
+        \cs_set_protected:Npn 
+          \use:c { __piton_collect_ #1 :w } 
+          ####1 
+          \c_backslash_str end \c_left_brace_str #1 \c_right_brace_str
+      }
+          {
+            \group_end:
+            \par \addvspace { 0.5 em }
+            {
+              \dim_set_eq:NN \parindent \c_zero_dim 
+              \ttfamily
+              \bool_if:NT \l_@@_line_numbers_bool 
+                { 
+                  \@@_actually_print_number:
+                  \vspace{-\baselineskip}
+                }
+              \int_case:nnF \l_@@_gobble_int 
+                { 
+                  0 
+%    \end{macrocode}
+% Be careful: the last argument is provided by currification.
+%    \begin{macrocode}
+                  { \lua_now:e { Parse(token.scan_argument()) } }
+                  { -1 }
+                  { \lua_now:e { AutoGobbleParse(token.scan_argument()) } } 
+                }
+                {
+                   \exp_args:NV \@@_define_trim_syntax:n \l_@@_gobble_int 
+                   \lua_now:e { GobbleParse(token.scan_argument()) } 
+                }
+              { ##1 }
+            }
+            \par \addvspace { 0.5 em } 
+%    \end{macrocode}
+% The following |\end{#1}| is only for the groups and the stack of
+% environments of LaTeX.
+%    \begin{macrocode}
+            \end { #1 }
+          }   
+%    \end{macrocode}
+% 
+% 
+% \bigskip
+% We can now define the new environment by defining the two TeX macros
+% characteristic to the LaTeX environment.
+%    \begin{macrocode}
+    \NewDocumentEnvironment { #1 } { #2 }
+      {
+        #3 
+        \group_begin:
+        \tl_map_function:nN 
+          { \ \\ \{ \} \$ \& \# \^ \_ \% \~ \^^M } 
+          \char_set_catcode_other:N 
+        \use:c { __piton_collect_ #1 :w } 
+      }
+      { #4 }
+  }
+%    \end{macrocode}
+% 
+% \bigskip
+%    \begin{macrocode}
+\NewPitonEnvironment { Piton } { } { } { }
+%    \end{macrocode}
+% 
+% \bigskip
+%
+%    \begin{macrocode}
+\NewDocumentCommand { \PitonStyle } { m } { \csname pitonStyle#1\endcsname }
+%    \end{macrocode}
+%
+% \bigskip
+%    \begin{macrocode}
+\NewDocumentCommand { \SetPitonStyle } { } { \keys_set:nn { piton } }
+%    \end{macrocode}
+% 
+%    \begin{macrocode}
+\cs_new_protected:Npn \@@_math_scantokens:n #1 
+  { \normalfont \scantextokens { $#1$ } }
+%    \end{macrocode}
+% 
+% \bigskip
+%    \begin{macrocode}
+\keys_define:nn { piton }
+  {
+    String.Interpol  .tl_set:c = pitonStyle String.Interpol , 
+    String.Interpol  .value_required:n = true ,
+    FormattingType   .tl_set:c = pitonStyle FormattingType ,
+    FormattingType   .value_required:n = true ,
+    Dict.Value       .tl_set:c = pitonStyle Dict.Value ,
+    Dict.Value       .value_required:n = true ,
+    Name.Decorator   .tl_set:c = pitonStyle Name.Decorator ,
+    Name.Decorator   .value_required:n = true ,
+    Name.Function    .tl_set:c = pitonStyle Name.Function ,
+    Name.Function    .value_required:n = true ,
+    Keyword          .tl_set:c = pitonStyle Keyword ,
+    Keyword          .value_required:n = true ,
+    Keyword.Constant .tl_set:c = pitonStyle Keyword.Constant ,
+    Keyword.constant .value_required:n = true ,
+    String.Doc       .tl_set:c = pitonStyle String.Doc ,
+    String.Doc       .value_required:n = true ,
+    Interpol.Inside  .tl_set:c = pitonStyle Interpol.Inside ,
+    Interpol.Inside  .value_required:n = true ,
+    String.Long      .tl_set:c = pitonStyle String.Long ,
+    String.Long      .value_required:n = true ,
+    String.Short     .tl_set:c = pitonStyle String.Short ,
+    String.Short     .value_required:n = true ,
+    String           .meta:n = { String.Long = #1 , String.Short = #1 } ,
+    Comment.Math     .tl_set:c = pitonStyle Comment.Math , 
+    Comment.Math     .default:n = \@@_math_scantokens:n ,
+    Comment.Math     .initial:n = ,
+    Comment          .tl_set:c = pitonStyle Comment , 
+    Comment          .value_required:n = true ,
+    InitialValues    .tl_set:c = pitonStyle InitialValues ,
+    InitialValues    .value_required:n = true ,
+    Number           .tl_set:c = pitonStyle Number , 
+    Number           .value_required:n = true ,
+    Name.Namespace   .tl_set:c = pitonStyle Name.Namespace , 
+    Name.Namespace   .value_required:n = true ,
+    Name.Class       .tl_set:c = pitonStyle Name.Class , 
+    Name.Class       .value_required:n = true ,
+    Name.Builtin     .tl_set:c = pitonStyle Name.Builtin , 
+    Name.Builtin     .value_required:n = true ,
+    Name.Type        .tl_set:c = pitonStyle Name.Type , 
+    Name.Type        .value_required:n = true ,
+    Operator         .tl_set:c = pitonStyle Operator , 
+    Operator         .value_required:n = true ,
+    Operator.Word    .tl_set:c = pitonStyle Operator.Word , 
+    Operator.Word    .value_required:n = true ,
+    Post.Function    .tl_set:c = pitonStyle Post.Function , 
+    Post.Function    .value_required:n = true ,
+    Exception        .tl_set:c = pitonStyle Exception ,
+    Exception        .value_required:n = true ,
+    Comment.LaTeX    .tl_set:c = pitonStyle Comment.LaTeX ,
+    Comment.LaTeX    .value_required:n = true ,
+    unknown          .code:n = \msg_error:nn { piton }{ Unknown~key~for~SetPitonStyle }
+  }
+%    \end{macrocode}
+% 
+% 
+% \bigskip
+%    \begin{macrocode}
+\msg_new:nnn { piton } { Unknown~key~for~SetPitonStyle } {
+  The~style~'\l_keys_key_str'~is~unknown.\\
+  This~key~will~be~ignored.\\
+  The~available~styles~are~(in~alphabetic~order):~
+  Comment,~
+  Comment.LaTeX,~
+  Dict.Value,~
+  Exception,~
+  InitialValues,~ 
+  Keyword,~
+  Keyword.Constant,~
+  Name.Builtin,~
+  Name.Class,~
+  Name.Decorator,~
+  Name.Function,~
+  Name.Namespace,~
+  Number,~
+  Operator,~
+  Operator.Word,~
+  String,~
+  String.Doc,~
+  String.Long,~
+  String.Short,~and~
+  String.Interpol. }
+%    \end{macrocode}
+%
+% \bigskip
+%    \begin{macrocode}
+\SetPitonStyle
+  {                                                       
+    Comment          = \color[HTML]{0099FF} \itshape , 
+    Exception        = \color[HTML]{CC0000} ,
+    Keyword          = \color[HTML]{006699} \bfseries ,               
+    Keyword.Constant = \color[HTML]{006699} \bfseries ,               
+    Name.Builtin     = \color[HTML]{336666} ,
+    Name.Decorator   = \color[HTML]{9999FF}, 
+    Name.Class       = \color[HTML]{00AA88} \bfseries ,
+    Name.Function    = \color[HTML]{CC00FF} , 
+    Name.Namespace   = \color[HTML]{00CCFF} , 
+    Number           = \color[HTML]{FF6600} ,
+    Operator         = \color[HTML]{555555} ,
+    Operator.Word    = \bfseries ,
+    String           = \color[HTML]{CC3300} ,         
+    String.Doc       = \color[HTML]{CC3300} \itshape , 
+    String.Interpol  = \color[HTML]{AA0000} ,
+    Comment.LaTeX    = \normalfont \color[rgb]{.468,.532,.6} , 
+    Name.Type        = \color[HTML]{336666} ,
+    InitialValues    = \piton ,
+    Dict.Value       = \piton ,
+    Post.Function    = \piton ,
+    Interpol.Inside  = \color{black}\piton ,
+  }
+%    \end{macrocode}
+%
+%
+% \vspace{1cm}
+% \tableofcontents
+% \end{document}
+%
+% Local Variables:
+% TeX-fold-mode: t
+% TeX-fold-preserve-comments: nil
+% flyspell-mode: nil
+% fill-column: 80
+% End:
+
+
+
+
+
+


Property changes on: trunk/Master/texmf-dist/source/lualatex/piton/piton.dtx
___________________________________________________________________
Added: svn:eol-style
## -0,0 +1 ##
+native
\ No newline at end of property
Added: trunk/Master/texmf-dist/source/lualatex/piton/piton.ins
===================================================================
--- trunk/Master/texmf-dist/source/lualatex/piton/piton.ins	                        (rev 0)
+++ trunk/Master/texmf-dist/source/lualatex/piton/piton.ins	2022-09-14 20:06:26 UTC (rev 64393)
@@ -0,0 +1,47 @@
+%%
+%% Copyright (C) 2022 by F. Pantigny
+%%
+%%
+%% This file may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either
+%% version 1.3 of this license or (at your option) any later
+%% version.  The latest version of this license is in:
+%%
+%%      http://www.latex-project.org/lppl.txt
+%%
+%% and version 1.3 or later is part of all distributions of
+%% LaTeX version 2005/12/01 or later.
+%%
+\input l3docstrip.tex
+\keepsilent
+\usedir{tex/latex/cascade}
+\preamble
+
+Copyright (C) 2022 by F. Pantigny
+
+This file may be distributed and/or modified under the
+conditions of the LaTeX Project Public License, either
+version 1.3 of this license or (at your option) any later
+version.  The latest version of this license is in:
+
+     http://www.latex-project.org/lppl.txt
+
+and version 1.3 or later is part of all distributions of
+LaTeX version 2005/12/01 or later.
+
+\endpreamble
+\generate{\file{piton.sty}{\from{piton.dtx}{package}}}
+\Msg{*********************************************************}
+\Msg{*}
+\Msg{* To finish the installation you have to move the}
+\Msg{* following files into a directory searched by TeX:}
+\Msg{*}
+\Msg{* \space\space piton.sty\space\space and\space\space piton.lua}
+\Msg{*}
+\Msg{* To produce the documentation run the file piton.dtx}
+\Msg{* through LuaLaTeX.}
+\Msg{*}
+\Msg{* Happy TeXing!}
+\Msg{*********************************************************}
+\endbatchfile
+

Added: trunk/Master/texmf-dist/tex/lualatex/piton/piton.lua
===================================================================
--- trunk/Master/texmf-dist/tex/lualatex/piton/piton.lua	                        (rev 0)
+++ trunk/Master/texmf-dist/tex/lualatex/piton/piton.lua	2022-09-14 20:06:26 UTC (rev 64393)
@@ -0,0 +1,473 @@
+-- -*- coding: utf-8 ; -*-
+--
+-- This is file 'piton.lua' which is a part of the Latex package 'piton'
+-- Copyright (C) 2022 by F. Pantigny
+
+-- This file may be distributed and/or modified under the
+-- conditions of the Latex Project Public License, either
+-- version 1.3 of this license or (at your option) any later
+-- version.  The latest version of this license is in:
+-- 
+--      http://www.Latex-project.org/lppl.txt
+-- 
+-- and version 1.3 or later is part of all distributions of
+-- Latex version 2005/12/01 or later.
+
+
+-- This file is part of the version 0.55 of the package 'piton'
+
+local P, S, V , C , Ct, Cc, Cf = lpeg.P, lpeg.S, lpeg.V, lpeg.C, lpeg.Ct, lpeg.Cc, lpeg.Cf
+
+
+--[[ By convention, a capture which provides as value a table (and not a string), provides, in fact,
+a string (the first element of the table) which is a formatting LaTeX instruction (it will be
+thrown back to TeX with normal catcodes (ant not ``other'' catcode for everybody).]]
+
+local function L(string)
+  return lpeg.Cc ( { string } ) 
+end 
+
+local function K(pattern, style)
+  return 
+     L ( "{\\PitonStyle{" .. style .. "}{" )
+     * lpeg.C(pattern)
+     * L ( "}}" )
+end
+
+
+--[[ The text in "escape" (between begin_escape and end_escape) is captured
+and put in a table (with only one component). Indeed, we have decided that a capture
+which is encapsulated in a table must be transmitted to TeX with the normal TeX catcodes.]]
+
+local Escape = P(begin_escape)
+               * Ct ( C ( ( 1 - P(end_escape) ) ^ 1 ) )
+	       * P(end_escape)
+
+local EOL = ( P "\r" ) * L ( "\\pitonEOL" )
+
+
+
+lpeg.locale(lpeg) -- mandatory
+
+local alpha , digit , space , punct = lpeg.alpha , lpeg.digit , lpeg.space , lpeg.punct
+
+local letter = alpha + S"âàçéèêëïîôûüÂÀÇÉÈÊËÏÎÔÛÜ_" 
+
+local alphanum = letter + digit
+
+local identifier = letter * alphanum ^ 0
+
+local Identifier = C ( identifier )
+
+local Space = C ( ( space - P "\r" ) ^ 1 )
+
+local SkipSpace = C ( ( space - P "\r" ) ^ 0 )
+
+local Punct = C ( punct )
+
+
+local Number =
+   K (
+       ( digit^1 * P "." * digit^0 + digit^0 * P "." * digit^1 + digit^1 )
+       * ( S "eE" * S "+-" ^ -1 * digit^1 ) ^ -1
+       + digit^1 
+       , 'Number' ) 
+
+local Word = C ( ( ( 1 - space ) - S "'\"\r[()]" - digit ) ^ 1 )
+
+local Delim = C ( S "[()]" )
+
+
+local Keyword = 
+   K ( P "assert" + P "break" + P "case" + P "continue" + P "del"
+       + P "elif" + P "else" + P "except" + P "exec" + P "finally" + P "for" + P "from" 
+       + P "global" + P "if" + P "import" + P "lambda" + P "non local"
+       + P "pass" + P "return" + P "try" + P "while"
+       + P "with" + P "yield" + P "yield from" ,
+   'Keyword' )
+   + K ( P "True" + P "False" + P "None" , 'Keyword.Constant' ) 
+
+
+local Builtin = 
+   K ( P "__import__" + P "abs" + P "all" + P "any" + P "bin" + P "bool" + P "bytearray"
+     + P "bytes" + P "chr" + P "classmethod" + P "compile" + P "complex" + P "delattr"
+     + P "dict" + P "dir" + P "divmod" + P "enumerate" + P "eval" + P "filter"
+     + P "float" + P "format" + P "frozenset" + P "getattr" + P "globals" + P "hasattr"
+     + P "hash" + P "hex" + P "id" + P "input" + P "int" + P "isinstance" + P "issubclass"
+     + P "iter" + P "len" + P "list" + P "locals" + P "map" + P "max" + P "memoryview" + P "min"
+     + P "next" + P "object" + P "oct" + P "open" + P "ord" + P "pow" + P "print" + P "property"
+     + P "range" + P "repr" + P "reversed" + P "round" + P "set" + P "setattr" + P "slice"
+     + P "sorted" + P "staticmethod" + P "str" + P "sum" + P "super" + P "tuple" + P "type"
+     + P "vars" + P "zip" ,
+   'Name.Builtin' )
+
+
+local Exception =
+   K ( "ArithmeticError" + P "AssertionError" + P "AttributeError"
+    + P "BaseException" + P "BufferError" + P "BytesWarning" + P "DeprecationWarning"
+    + P "EOFError" + P "EnvironmentError" + P "Exception" + P "FloatingPointError"
+    + P "FutureWarning" + P "GeneratorExit" + P "IOError" + P "ImportError"
+    + P "ImportWarning" + P "IndentationError" + P "IndexError" + P "KeyError"
+    + P "KeyboardInterrupt" + P "LookupError" + P "MemoryError" + P "NameError"
+    + P "NotImplementedError" + P "OSError" + P "OverflowError"
+    + P "PendingDeprecationWarning" + P "ReferenceError" + P "ResourceWarning"
+    + P "RuntimeError" + P "RuntimeWarning" + P "StopIteration"
+    + P "SyntaxError" + P "SyntaxWarning" + P "SystemError" + P "SystemExit"
+    + P "TabError" + P "TypeError" + P "UnboundLocalError" + P "UnicodeDecodeError"
+    + P "UnicodeEncodeError" + P "UnicodeError" + P "UnicodeTranslateError"
+    + P "UnicodeWarning" + P "UserWarning" + P "ValueError" + P "VMSError"
+    + P "Warning" + P "WindowsError" + P "ZeroDivisionError"
+    + P "BlockingIOError" + P "ChildProcessError" + P "ConnectionError"
+    + P "BrokenPipeError" + P "ConnectionAbortedError" + P "ConnectionRefusedError"
+    + P "ConnectionResetError" + P "FileExistsError" + P "FileNotFoundError"
+    + P "InterruptedError" + P "IsADirectoryError" + P "NotADirectoryError"
+    + P "PermissionError" + P "ProcessLookupError" + P "TimeoutError"
+    + P "StopAsyncIteration" + P "ModuleNotFoundError" + P "RecursionError" ,
+   'Exception' )
+
+local RaiseException = K ( P "raise" , 'Keyword' ) * SkipSpace * Exception * C ( P "(" ) 
+
+local ExceptionInConsole = Exception *  C ( ( 1 - P "\r" ) ^ 0 ) * EOL  
+
+
+local Namespace =
+   K ( P "from" , 'Keyword' ) * Space * K ( alphanum^1 , 'Name.Namespace' )
+   *  ( Space * K ( P "import" , 'Keyword' ) ) ^ -1
+
+
+local ImportAs = K ( P "import" , 'Keyword' )
+                  * Space
+		  * K ( identifier , 'Name.Namespace' )
+		  * ( SkipSpace * C ( P "," ) * SkipSpace * K ( identifier , 'Name.Namespace' ) ) ^ 0 
+		  * (
+		      Space * K ( P "as" , 'Keyword' ) * Space * K ( identifier , 'Name.Namespace' )
+		    ) ^ 0 
+
+local Class = K ( P "class" , 'Keyword' ) * Space * K ( identifier , 'Name.Class' )
+
+local Decorator = K ( P "@" * letter^1 , 'Name.Decorator' ) 
+
+local SingleShortInterpol =
+    K ( P "{" , 'String.Interpol')
+  * K ( ( 1 - S "}':" ) ^ 0 , 'Interpol.Inside' )
+  * C ( P ":" * (1 - S "}:'") ^ 0 ) ^ -1
+  * K ( P "}" , 'String.Interpol' )
+
+local DoubleShortInterpol =
+    K ( P "{" , 'String.Interpol' )
+  * K ( ( 1 - S "}\":" ) ^ 0 , 'Interpol.Inside' )
+  * ( K ( P ":" , 'String.Interpol' ) * C ( (1 - S "}:\"") ^ 0 ) ) ^ -1
+  * K ( P "}" , 'String.Interpol' )
+
+local SingleLongInterpol =
+    K ( P "{" , 'String.Interpol' )
+  * K ( ( 1 - S "}:\r" - P "'''" ) ^ 0 , 'Interpol.Inside' )
+  * C ( P ":" * (1 - S "}:\r" - P "'''" ) ^ 0 ) ^ -1
+  * K ( P "}" , 'String.Interpol' )
+
+local DoubleLongInterpol =
+    K ( P "{" , 'String.Interpol' )
+  * K ( ( 1 - S "}:\r" - P "\"\"\"" ) ^ 0 , 'Interpol.Inside' )
+  * C ( P ":" * (1 - S "}:\r" - P "\"\"\"" ) ^ 0 ) ^ -1
+  * K ( P "}" , 'String.Interpol' )
+
+local SingleShortPureString = C ( ( P "\\'" + P "{{" + P "}}" + 1 - S "{}'" ) ^ 1 )
+
+local DoubleShortPureString = C ( ( P "\\\"" + P "{{" + P "}}" + 1 - S "{}\"" ) ^ 1 )
+
+local SingleLongPureString = C ( ( 1 - P "'''" - S "{}'\r" ) ^ 1 )
+
+local DoubleLongPureString = C ( ( 1 - P "\"\"\"" - S "{}\"\r" ) ^ 1 ) 
+
+local SingleShortString =
+    L ( "{\\PitonStyle{String.Short}{" )
+     * (
+           C ( P "f'" + P "F'" ) 
+           * ( SingleShortInterpol + SingleShortPureString ) ^ 0 
+           * C ( P "'" )
+         + 
+           C ( ( P "'" + P "r'" + P "R'" ) * ( P "\\'" + 1 - S "'\r" ) ^ 0 * P "'" )
+       )
+     * L ( "}}" ) 
+
+local DoubleShortString =
+    L ( "{\\PitonStyle{String.Short}{" )
+     * (
+           C ( P "f\"" + P "F\"" ) 
+           * ( DoubleShortInterpol + DoubleShortPureString ) ^ 0 
+           * C ( P "\"" )
+         +
+           C ( ( P "\"" + P "r\"" + P "R\"" ) * ( P "\\\"" + 1 - S "\"\r" ) ^ 0 * P "\"" )
+       )
+     * L ( "}}" ) 
+
+
+local ShortString = SingleShortString + DoubleShortString
+
+
+local SingleLongString =
+      L "{\\PitonStyle{String.Long}{" 
+       * (
+      	     C ( S "fF" * P "'''" )
+      	     * ( SingleLongInterpol + SingleLongPureString ) ^ 0
+	     * L "}}" 
+      	     * (
+	         EOL
+	         + 
+      	         L "{\\PitonStyle{String.Long}{" 
+      	         * ( SingleLongInterpol + SingleLongPureString ) ^ 0
+      	         * L "}}"
+      	         * EOL
+      	       ) ^ 0 
+      	     * L "{\\PitonStyle{String.Long}{" 
+      	     * ( SingleLongInterpol + SingleLongPureString ) ^ 0
+           +
+	     C ( ( S "rR" ) ^ -1  * P "'''" * ( 1 - P "'''" - P "\r" ) ^ 0 ) 
+      	     * L "}}" 
+      	     * (
+      	         L "{\\PitonStyle{String.Long}{" 
+      	         * C ( ( 1 - P "'''" - P "\r" ) ^ 0 )
+      	         * L "}}" 
+      	         * EOL
+      	       ) ^ 0 
+      	     * L "{\\PitonStyle{String.Long}{" 
+      	     * C ( ( 1 - P "'''" - P "\r" ) ^ 0 )
+          )
+       * C ( P "'''" )
+       * L "}}" 
+
+
+local DoubleLongString =
+      L "{\\PitonStyle{String.Long}{" 
+       * (
+      	     C ( S "fF" * P "\"\"\"" )
+      	     * ( DoubleLongInterpol + DoubleLongPureString ) ^ 0
+	     * L "}}" 
+      	     * (
+	         EOL
+	         + 
+      	         L "{\\PitonStyle{String.Long}{" 
+      	         * ( DoubleLongInterpol + DoubleLongPureString ) ^ 0
+      	         * L "}}" 
+      	         * EOL
+      	       ) ^ 0 
+      	     * L "{\\PitonStyle{String.Long}{" 
+      	     * ( DoubleLongInterpol + DoubleLongPureString ) ^ 0
+           +
+	     C ( ( S "rR" ) ^ -1  * P "\"\"\"" * ( 1 - P "\"\"\"" - P "\r" ) ^ 0 ) 
+      	     * L "}}" 
+      	     * (
+      	         L "{\\PitonStyle{String.Long}{" 
+      	         * C ( ( 1 - P "\"\"\"" - P "\r" ) ^ 0 )
+      	         * L "}}" 
+      	         * EOL
+      	       ) ^ 0 
+      	     * L "{\\PitonStyle{String.Long}{" 
+      	     * C ( ( 1 - P "\"\"\"" - P "\r" ) ^ 0 )
+          )
+       * C ( P "\"\"\"" )
+       * L "}}" 
+
+
+
+local LongString = SingleLongString + DoubleLongString
+
+
+local Expression =
+    P { "E" ,
+         E = ( 1 - S "{}()[]\r," ) ^ 0
+	     *  (
+	          (   P "{" * V "F" * P "}"
+	            + P "(" * V "F" * P ")"
+		    + P "[" * V "F" * P "]" ) * ( 1 - S "{}()[]\r," ) ^ 0
+		) ^ 0 ,
+	 F = ( 1 - S "{}()[]\r\"'" ) ^ 0
+	     * ( (
+	             P "'" * (P "\\'" + 1 - S"'\r" )^0 * P "'"
+                   + P "\"" * (P "\\\"" + 1 - S"\"\r" )^0 * P "\""
+	           + P "{"  * V "F" * P "}"
+		   + P "(" * V "F" * P ")"
+		   + P "[" * V "F" * P "]"
+	         ) * ( 1 - S "{}()[]\r\"'" ) ^ 0 ) ^ 0 , 
+      }
+
+local Param = SkipSpace * K ( identifier , '' ) * SkipSpace
+                     *  ( K ( P "=" * Expression , 'InitialValues' )
+		          +  K ( P ":" , '' ) * SkipSpace * K ( letter^1 , 'Name.Type' ))
+		  + SkipSpace * K ( alphanum ^ 1 , '' ) * SkipSpace 
+
+local Params =  Param * (  K ( P "," , '' ) * Param ) ^ 0
+
+local StringDoc = K ( P "\"\"\"" , 'String.Doc' )
+                      * ( K ( (1 - P "\"\"\"" - P "\r" ) ^ 0 , 'String.Doc' ) * EOL ) ^ 0
+                      * K ( ( 1 - P "\"\"\"" - P "\r" ) ^ 0 * P "\"\"\"" , 'String.Doc' )
+		  + K ( P "'''" , 'String.Doc' )
+                      * ( K ( (1 - P "'''" - P "\r")^0 , 'String.Doc' ) * EOL ) ^ 0
+                      * K ( ( 1 - P "'''" - P "\r")^0 * P "'''" , 'String.Doc' )
+
+local CommentMath = P "$" * K ( ( 1 - S "$\r" ) ^ 1 , 'Comment.Math' ) * P "$"
+
+
+local Comment = L ( "{\\pitonStyleComment {" ) 
+		* C ( P "#" ) * ( CommentMath + C ( ( 1 - S "$\r" ) ^ 1 ) ) ^ 0
+                * L ( "}}" )
+		* ( EOL + -1 )
+
+local CommentLaTeX =
+   P "##"
+   * L "{\\PitonStyle{Comment.LaTeX}{" 
+   * Ct ( C ( ( 1 - P "\r" ) ^ 0 ) ) 
+   * L "}}" 
+   * ( EOL + -1 ) 
+
+local DefFunction =
+   K ( P "def" , 'Keyword' )
+     * Space
+     * K ( identifier , 'Name.Function' ) 
+     * ( SkipSpace * K ( P "(" , '' ) * Params * K ( P ")" , '' ) ) ^ -1
+     * ( SkipSpace
+          * K ( ( 1 - S ":\r" )^0 , 'Post.Function' ) 
+          * K ( P ":" , 'Keyword' )
+          * SkipSpace
+	  * ( EOL + CommentLaTeX + Comment )
+          * SkipSpace
+	  * StringDoc ) ^ -1
+
+local ItemDict = ShortString * SkipSpace * C ( P ":" ) * K ( Expression , 'Dict.Value' ) 
+
+local ItemOfSet = SkipSpace * ( ItemDict + ShortString ) * SkipSpace 
+
+local Set = C ( P "{" ) 
+            * ItemOfSet * ( C ( P "," ) * ItemOfSet )  ^ 0 
+            * C ( P "}" )
+
+
+local Operator = K ( P "!=" + P "==" + P "<<" + P ">>" + S "-~+/*%=<>&.@|" , 'Operator')
+
+local OperatorWord = K ( P "in" + P "is" + P "and" + P "or" + P "not" , 'Operator.Word')
+
+local SyntaxPython =
+      ( ( space - P "\r" ) ^0 * P "\r" ) ^ -1 * space ^ -1 *
+      	   (  ( space^1 * -1 ) 
+              + EOL
+	      + Space
+	      + Escape 
+	      + CommentLaTeX
+	      + LongString 
+	      + Comment
+              + ExceptionInConsole
+              + Set 
+	      + Delim
+	      + Class * ( Space + Punct + EOL )
+	      + Namespace * ( Space + Punct + EOL )
+              + ImportAs
+	      + RaiseException 
+              + Keyword * ( Space + Punct + EOL )
+              + DefFunction
+              + ShortString
+	      + Decorator * ( Space + Punct + EOL )
+	      + Operator
+	      + OperatorWord * ( Space + Punct + EOL ) 
+	      + Builtin * ( Space + Punct + EOL )
+	      + Identifier 
+	      + Number
+	      + Word
+	    ) ^0 * -1 
+
+
+local MinimalSyntax =
+  P { "S" ;
+      S = K ( (1 - P "\r" ) ^ 0 , '') + EOL * S
+    }
+
+
+--- with cctab, all characters including spaces have catcode 12
+local cctab = luatexbase.catcodetables.CatcodeTableOther
+
+function Parse(code)
+  local t = Ct(SyntaxPython) : match(code)
+  if t then else t = Ct(MinimalSyntax) : match(code) end   
+  for i = 1 , #t do
+    if type(t[i]) == 'string'
+    then
+      tex.sprint(cctab, t[i])
+    else
+      tex.sprint( t[i][1] )
+    end 
+  end
+end
+
+function ParseFile(name)
+  s = ''
+  for line in io.lines(name) do s = s .. '\r' .. line end
+  Parse(s) 
+end
+
+
+function define_gobble_syntax(n) 
+  GobbleSyntax = ( 1 - P "\r" ) ^ (-n)  * C ( ( 1 - P "\r" ) ^0 ) 
+               * ( C ( P "\r" )
+	           * ( 1 - P "\r" ) ^ (-n)
+		   * C ( ( 1 - P "\r" ) ^0 )
+		 ) ^ 0
+end 
+
+function GobbleParse(code)
+  local t = Ct(GobbleSyntax):match(code)
+  local new_code = ""
+  for i = 1 , #t do
+    new_code = new_code .. t[i]
+  end
+  Parse(new_code)
+end
+
+
+function min(x,y)
+  if x <= y
+  then return x
+  else return y
+  end
+end
+
+function add(acc,new_value)
+  return acc + new_value
+end 
+
+
+--[[ The following LPEG returns as capture the minimal number of spaces at
+the beginning of the lines of code]]
+AutoGobbleSyntax = 
+    ( space ^ 0 * P "\r" ) ^ -1 
+    * Cf (
+           (
+	     ( P " " ) ^ 0 * P "\r"
+	     + 
+	     Cf ( Cc(0) * ( P " " * Cc(1) ) ^ 0 , add )
+             * ( 1 - P " " ) * ( 1 - P "\r" ) ^ 0 * P "\r"
+	   ) ^ 0
+           *
+           ( Cf ( Cc(0) * ( P " " * Cc(1) ) ^ 0 , add )
+           * ( 1 - P " " ) * ( 1 - P "\r" ) ^ 0 ) ^ -1 ,
+	   min
+         ) 
+
+
+function AutoGobbleParse(code)
+  local n = AutoGobbleSyntax:match(code)
+  if n==0
+  then Parse(code)
+  else define_gobble_syntax(n)
+       GobbleParse(code) 
+  end 
+end
+
+
+  
+
+
+
+
+
+
+
+


Property changes on: trunk/Master/texmf-dist/tex/lualatex/piton/piton.lua
___________________________________________________________________
Added: svn:eol-style
## -0,0 +1 ##
+native
\ No newline at end of property
Added: trunk/Master/texmf-dist/tex/lualatex/piton/piton.sty
===================================================================
--- trunk/Master/texmf-dist/tex/lualatex/piton/piton.sty	                        (rev 0)
+++ trunk/Master/texmf-dist/tex/lualatex/piton/piton.sty	2022-09-14 20:06:26 UTC (rev 64393)
@@ -0,0 +1,288 @@
+%%
+%% This is file `piton.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% piton.dtx  (with options: `package')
+%% 
+%% Copyright (C) 2022 by F. Pantigny
+%% 
+%% This file may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either
+%% version 1.3 of this license or (at your option) any later
+%% version.  The latest version of this license is in:
+%% 
+%%      http://www.latex-project.org/lppl.txt
+%% 
+%% and version 1.3 or later is part of all distributions of
+%% LaTeX version 2005/12/01 or later.
+%% 
+\def\myfileversion{0.6}
+\def\myfiledate{2022/09/14}
+
+
+\NeedsTeXFormat{LaTeX2e}
+\RequirePackage{l3keys2e}
+\ProvidesExplPackage
+  {piton}
+  {\myfiledate}
+  {\myfileversion}
+  {Highlight Python codes with LPEG on LuaLaTeX}
+\keys_define:nn { piton / package }
+  {
+    escape-inside .tl_set:N = \c__piton_escape_inside_tl ,
+    unknown .code:n = \msg_error:nn { piton } { unknown~key~for~package }
+  }
+\msg_new:nnn { piton } { unknown~key~for~package }
+  {
+    Unknown~key\\
+    You~have~used~the~key~'\l_keys_key_str'~but~the~only~key~available~here~
+    is~the~key~'escape-inside'.\\
+    That~key~will~be~ignored.
+  }
+\tl_clear_new:N \c__piton_escape_inside_tl
+\ProcessKeysOptions { piton / package }
+\begingroup
+\cs_new_protected:Npn \__piton_set_escape_char:nn #1 #2
+  {
+    \directlua { begin_escape = "#1" }
+    \directlua { end_escape = "#2" }
+  }
+\cs_generate_variant:Nn \__piton_set_escape_char:nn { x x }
+\__piton_set_escape_char:xx
+  { \tl_head:V \c__piton_escape_inside_tl }
+  { \tl_tail:V \c__piton_escape_inside_tl }
+\endgroup
+\msg_new:nnn { piton } { LuaLaTeX~mandatory }
+  { The~package~'piton'~must~be~used~with~LuaLaTeX.\\ It~won't~be~loaded. }
+\sys_if_engine_luatex:F { \msg_critical:nn { piton } { LuaLaTeX~mandatory } }
+\RequirePackage { luatexbase }
+\msg_new:nnn { piton } { piton.lua~not~found }
+  {
+    The~file~'piton.lua'~can't~be~found.\\
+    The package~'piton'~won't be loaded.
+  }
+\file_if_exist:nF { piton.lua }
+  { \msg_critical:nn { piton } { piton.lua~not~found} }
+\lua_now:e { require("piton.lua") }
+\cs_new:Npn \pitonEOL
+  {
+    \par \leavevmode
+    \__piton_print_number:
+  }
+\cs_new_protected:Npn \__piton_print_number:
+  { \bool_if:NT \l__piton_line_numbers_bool \__piton_actually_print_number: }
+\cs_new_protected:Npn \__piton_actually_print_number:
+  {
+    \bool_if:NF \l__piton_all_line_numbers_bool
+      { \peek_meaning:NF \pitonEOL }
+    \__piton_actually_print_number_i:
+  }
+\cs_new_protected:Npn \__piton_actually_print_number_i:
+  {
+    \int_incr:N \l__piton_lineno_int
+    \hbox_overlap_left:n
+      {
+        { \color{gray} \footnotesize \int_to_arabic:n \l__piton_lineno_int }
+        \quad
+      }
+  }
+\int_new:N \l__piton_lineno_int
+\int_new:N \l__piton_gobble_int
+\cs_new_protected:Npn \__piton_define_trim_syntax:n #1
+  { \lua_now:n { define_trim_syntax(#1) } }
+\NewDocumentCommand { \piton } { v }
+  {
+    \group_begin:
+    \ttfamily
+    \lua_now:e { Parse(token.scan_argument()) } { #1 }
+    \group_end:
+  }
+\NewDocumentCommand { \PitonInputFile } { m }
+  {
+    \group_begin:
+      \ttfamily
+      \bool_if:NT \l__piton_line_numbers_bool
+        {
+          \__piton_actually_print_number:
+          \vspace{-\baselineskip}
+        }
+      \lua_now:e { ParseFile(token.scan_argument()) } { #1 }
+    \group_end:
+  }
+\bool_new:N \l__piton_line_numbers_bool
+\bool_new:N \l__piton_all_line_numbers_bool
+\keys_define:nn { piton / PitonOptions }
+  {
+    gobble           .int_set:N         = \l__piton_gobble_int ,
+    gobble           .value_required:n  = true ,
+    auto-gobble      .code:n            = \int_set:Nn \l__piton_gobble_int { -1 } ,
+    auto-gobble      .value_forbidden:n = true ,
+    line-numbers     .bool_set:N        = \l__piton_line_numbers_bool ,
+    line-numbers     .default:n         = true ,
+    all-line-numbers .code:n =
+      \bool_set_true:N \l__piton_line_numbers_bool
+      \bool_set_true:N \l__piton_all_line_numbers_bool ,
+    all-line-numbers .value_forbidden:n = true
+  }
+\NewDocumentCommand \PitonOptions { }
+  { \keys_set:nn { piton / PitonOptions } }
+\NewDocumentCommand { \NewPitonEnvironment } { m m m m }
+  {
+    \use:x
+      {
+        \cs_set_protected:Npn
+          \use:c { __piton_collect_ #1 :w }
+          ####1
+          \c_backslash_str end \c_left_brace_str #1 \c_right_brace_str
+      }
+          {
+            \group_end:
+            \par \addvspace { 0.5 em }
+            {
+              \dim_set_eq:NN \parindent \c_zero_dim
+              \ttfamily
+              \bool_if:NT \l__piton_line_numbers_bool
+                {
+                  \__piton_actually_print_number:
+                  \vspace{-\baselineskip}
+                }
+              \int_case:nnF \l__piton_gobble_int
+                {
+                  0
+                  { \lua_now:e { Parse(token.scan_argument()) } }
+                  { -1 }
+                  { \lua_now:e { AutoGobbleParse(token.scan_argument()) } }
+                }
+                {
+                   \exp_args:NV \__piton_define_trim_syntax:n \l__piton_gobble_int
+                   \lua_now:e { GobbleParse(token.scan_argument()) }
+                }
+              { ##1 }
+            }
+            \par \addvspace { 0.5 em }
+            \end { #1 }
+          }
+    \NewDocumentEnvironment { #1 } { #2 }
+      {
+        #3
+        \group_begin:
+        \tl_map_function:nN
+          { \ \\ \{ \} \$ \& \# \^ \_ \% \~ \^^M }
+          \char_set_catcode_other:N
+        \use:c { __piton_collect_ #1 :w }
+      }
+      { #4 }
+  }
+\NewPitonEnvironment { Piton } { } { } { }
+\NewDocumentCommand { \PitonStyle } { m } { \csname pitonStyle#1\endcsname }
+\NewDocumentCommand { \SetPitonStyle } { } { \keys_set:nn { piton } }
+\cs_new_protected:Npn \__piton_math_scantokens:n #1
+  { \normalfont \scantextokens { $#1$ } }
+\keys_define:nn { piton }
+  {
+    String.Interpol  .tl_set:c = pitonStyle String.Interpol ,
+    String.Interpol  .value_required:n = true ,
+    FormattingType   .tl_set:c = pitonStyle FormattingType ,
+    FormattingType   .value_required:n = true ,
+    Dict.Value       .tl_set:c = pitonStyle Dict.Value ,
+    Dict.Value       .value_required:n = true ,
+    Name.Decorator   .tl_set:c = pitonStyle Name.Decorator ,
+    Name.Decorator   .value_required:n = true ,
+    Name.Function    .tl_set:c = pitonStyle Name.Function ,
+    Name.Function    .value_required:n = true ,
+    Keyword          .tl_set:c = pitonStyle Keyword ,
+    Keyword          .value_required:n = true ,
+    Keyword.Constant .tl_set:c = pitonStyle Keyword.Constant ,
+    Keyword.constant .value_required:n = true ,
+    String.Doc       .tl_set:c = pitonStyle String.Doc ,
+    String.Doc       .value_required:n = true ,
+    Interpol.Inside  .tl_set:c = pitonStyle Interpol.Inside ,
+    Interpol.Inside  .value_required:n = true ,
+    String.Long      .tl_set:c = pitonStyle String.Long ,
+    String.Long      .value_required:n = true ,
+    String.Short     .tl_set:c = pitonStyle String.Short ,
+    String.Short     .value_required:n = true ,
+    String           .meta:n = { String.Long = #1 , String.Short = #1 } ,
+    Comment.Math     .tl_set:c = pitonStyle Comment.Math ,
+    Comment.Math     .default:n = \__piton_math_scantokens:n ,
+    Comment.Math     .initial:n = ,
+    Comment          .tl_set:c = pitonStyle Comment ,
+    Comment          .value_required:n = true ,
+    InitialValues    .tl_set:c = pitonStyle InitialValues ,
+    InitialValues    .value_required:n = true ,
+    Number           .tl_set:c = pitonStyle Number ,
+    Number           .value_required:n = true ,
+    Name.Namespace   .tl_set:c = pitonStyle Name.Namespace ,
+    Name.Namespace   .value_required:n = true ,
+    Name.Class       .tl_set:c = pitonStyle Name.Class ,
+    Name.Class       .value_required:n = true ,
+    Name.Builtin     .tl_set:c = pitonStyle Name.Builtin ,
+    Name.Builtin     .value_required:n = true ,
+    Name.Type        .tl_set:c = pitonStyle Name.Type ,
+    Name.Type        .value_required:n = true ,
+    Operator         .tl_set:c = pitonStyle Operator ,
+    Operator         .value_required:n = true ,
+    Operator.Word    .tl_set:c = pitonStyle Operator.Word ,
+    Operator.Word    .value_required:n = true ,
+    Post.Function    .tl_set:c = pitonStyle Post.Function ,
+    Post.Function    .value_required:n = true ,
+    Exception        .tl_set:c = pitonStyle Exception ,
+    Exception        .value_required:n = true ,
+    Comment.LaTeX    .tl_set:c = pitonStyle Comment.LaTeX ,
+    Comment.LaTeX    .value_required:n = true ,
+    unknown          .code:n = \msg_error:nn { piton }{ Unknown~key~for~SetPitonStyle }
+  }
+\msg_new:nnn { piton } { Unknown~key~for~SetPitonStyle } {
+  The~style~'\l_keys_key_str'~is~unknown.\\
+  This~key~will~be~ignored.\\
+  The~available~styles~are~(in~alphabetic~order):~
+  Comment,~
+  Comment.LaTeX,~
+  Dict.Value,~
+  Exception,~
+  InitialValues,~
+  Keyword,~
+  Keyword.Constant,~
+  Name.Builtin,~
+  Name.Class,~
+  Name.Decorator,~
+  Name.Function,~
+  Name.Namespace,~
+  Number,~
+  Operator,~
+  Operator.Word,~
+  String,~
+  String.Doc,~
+  String.Long,~
+  String.Short,~and~
+  String.Interpol. }
+\SetPitonStyle
+  {
+    Comment          = \color[HTML]{0099FF} \itshape ,
+    Exception        = \color[HTML]{CC0000} ,
+    Keyword          = \color[HTML]{006699} \bfseries ,
+    Keyword.Constant = \color[HTML]{006699} \bfseries ,
+    Name.Builtin     = \color[HTML]{336666} ,
+    Name.Decorator   = \color[HTML]{9999FF},
+    Name.Class       = \color[HTML]{00AA88} \bfseries ,
+    Name.Function    = \color[HTML]{CC00FF} ,
+    Name.Namespace   = \color[HTML]{00CCFF} ,
+    Number           = \color[HTML]{FF6600} ,
+    Operator         = \color[HTML]{555555} ,
+    Operator.Word    = \bfseries ,
+    String           = \color[HTML]{CC3300} ,
+    String.Doc       = \color[HTML]{CC3300} \itshape ,
+    String.Interpol  = \color[HTML]{AA0000} ,
+    Comment.LaTeX    = \normalfont \color[rgb]{.468,.532,.6} ,
+    Name.Type        = \color[HTML]{336666} ,
+    InitialValues    = \piton ,
+    Dict.Value       = \piton ,
+    Post.Function    = \piton ,
+    Interpol.Inside  = \color{black}\piton ,
+  }
+
+\endinput
+%%
+%% End of file `piton.sty'.


Property changes on: trunk/Master/texmf-dist/tex/lualatex/piton/piton.sty
___________________________________________________________________
Added: svn:eol-style
## -0,0 +1 ##
+native
\ No newline at end of property
Modified: trunk/Master/tlpkg/bin/tlpkg-ctan-check
===================================================================
--- trunk/Master/tlpkg/bin/tlpkg-ctan-check	2022-09-14 20:05:16 UTC (rev 64392)
+++ trunk/Master/tlpkg/bin/tlpkg-ctan-check	2022-09-14 20:06:26 UTC (rev 64393)
@@ -629,7 +629,7 @@
     phonenumbers phonetic phonrule photo physconst physics physunits
     piano picinpar pict2e
     pictex pictex2 pictexsum picture piechartmp piff pigpen
-    pinlabel pinoutikz pitex pittetd pixelart
+    pinlabel pinoutikz pitex piton pittetd pixelart
     pkfix pkfix-helper pkgloader pkuthss
     pl placeat placeins placeins-plain
     plain-doc plainpkg plainyr plari plantslabels plantuml plates

Modified: trunk/Master/tlpkg/tlpsrc/collection-luatex.tlpsrc
===================================================================
--- trunk/Master/tlpkg/tlpsrc/collection-luatex.tlpsrc	2022-09-14 20:05:16 UTC (rev 64392)
+++ trunk/Master/tlpkg/tlpsrc/collection-luatex.tlpsrc	2022-09-14 20:06:26 UTC (rev 64393)
@@ -75,6 +75,7 @@
 depend pdfarticle
 depend pdfextra
 depend penlight
+depend piton
 depend placeat
 depend plantuml
 depend pyluatex

Added: trunk/Master/tlpkg/tlpsrc/piton.tlpsrc
===================================================================


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