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-rw-r--r--Master/texmf-dist/tex/generic/chemfig/chemfig.sty45
-rw-r--r--Master/texmf-dist/tex/generic/chemfig/chemfig.tex1504
-rw-r--r--Master/texmf-dist/tex/generic/chemfig/t-chemfig.tex48
3 files changed, 1597 insertions, 0 deletions
diff --git a/Master/texmf-dist/tex/generic/chemfig/chemfig.sty b/Master/texmf-dist/tex/generic/chemfig/chemfig.sty
new file mode 100644
index 00000000000..f9ac1c4fc36
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/chemfig/chemfig.sty
@@ -0,0 +1,45 @@
+% __________________________________________________________________
+% | |
+% | |
+% | chemfig v0.4 |
+% | |
+% | March 7, 2011 |
+% | |
+% |__________________________________________________________________|
+%
+% This is t-chemfig.tex, the package file for conTeXt.
+%
+% Maintainer: Christian Tellechea
+% E-mail : unbonpetit@gmail.com
+% Comments, bug reports and suggestions are welcome.
+% Licence : Released under the LaTeX Project Public License v1.3c or
+% later, see http://www.latex-project.org/lppl.txt
+% Copyright : Christian Tellechea 2010-2011
+%
+% The "chemfig" package consists of the 8 following files:
+% chemfig.tex (the code of the package)
+% chemfig.sty (this file)
+% t-chemfig.tex (the package file for ConTeXt)
+% README
+% chemfig_doc_en.tex, chemfig_doc_en.pdf (english manual)
+% chemfig_doc_fr.tex, chemfig_doc_fr.pdf (manual in french)
+%
+% --------------------------------------------------------------------
+% This work 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 work has the LPPL maintenance status `maintained'.
+%
+% The Current Maintainer of this work is Christian Tellechea
+% --------------------------------------------------------------------
+\RequirePackage{tikz}
+\input chemfig.tex
+\ProvidesPackage\CF@package@name[\CF@date\space v\CF@ver\space Draw molecule with an easy syntax]
+\endinput \ No newline at end of file
diff --git a/Master/texmf-dist/tex/generic/chemfig/chemfig.tex b/Master/texmf-dist/tex/generic/chemfig/chemfig.tex
new file mode 100644
index 00000000000..870b9d1b5f0
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/chemfig/chemfig.tex
@@ -0,0 +1,1504 @@
+% __________________________________________________________________
+% | |
+% | |
+% | chemfig v0.4 |
+% | |
+% | March 7, 2011 |
+% | |
+% |__________________________________________________________________|
+%
+% This is chemfig.tex, the code of the "chemfig" package.
+%
+% Maintainer: Christian Tellechea
+% E-mail : unbonpetit@gmail.com
+% Comments, bug reports and suggestions are welcome.
+% Licence : Released under the LaTeX Project Public License v1.3c or
+% later, see http://www.latex-project.org/lppl.txt
+% Copyright : Christian Tellechea 2010-2011
+%
+% The "chemfig" package consists of the 8 following files:
+% chemfig.tex (this file)
+% chemfig.sty (the package file for LaTeX)
+% t-chemfig.tex (the package file for conTeXt)
+% README
+% chemfig_doc_en.tex, chemfig_doc_en.pdf (english manual)
+% chemfig_doc_fr.tex, chemfig_doc_fr.pdf (manual in french)
+%
+% --------------------------------------------------------------------
+% This work 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 work has the LPPL maintenance status `maintained'.
+%
+% The Current Maintainer of this work is Christian Tellechea
+% --------------------------------------------------------------------
+%
+% Sauvegarde tous les catcodes des caract\`eres sp\'eciaux sauf #
+
+\begingroup
+\def\X#1{\catcode\number`#1=\number\catcode`#1\relax}
+% Sauve tous les catcode sauf #
+\expandafter\xdef\csname CF@savedcatcode\endcsname{%
+ \X\[\X\]\X\:\X\(\X\)\X\,\X\-\X\=\X\~\X\!\X\?\X\<\X\>\X\;\X\*\X\|\X\@%
+}
+\endgroup
+
+% Pour la dur\'ee de lecture du package, changer les catcodes :
+\catcode`\[12 \catcode`\]12 \catcode`\:12 \catcode`\(12
+\catcode`\)12 \catcode`\,12 \catcode`\-12 \catcode`\=12
+\catcode`\~12 \catcode`\!12 \catcode`\?12 \catcode`\<12
+\catcode`\>12 \catcode`\;12 \catcode`\*12 \catcode`\|12
+\catcode`\@11 \catcode`\#6
+
+\def\CF@def#1{%
+ \ifdefined#1%
+ \errmessage{Package chemfig Error: the macro \string#1\space is already defined. Please, email the author.}%
+ \fi
+ \def#1%
+}
+
+\CF@def\CF@ver {0.4}
+\CF@def\CF@date {2011/03/07}
+\CF@def\CF@fr@date {7 mars 2011}
+\CF@def\CF@en@date {March 7, 2011}
+\CF@def\CF@package@name{chemfig}
+
+\expandafter\ifx\csname @latexerr\endcsname\relax% on n'utilise pas LaTeX ?
+ \ifdefined\tikzpicture\else
+ \def\CF@next@action{\input tikz.tex}%
+ \expandafter\CF@next@action
+ \fi
+ \immediate\write\m@ne{Package: \CF@package@name\space\CF@date\space\space v\CF@ver\space\space Draw molecule with an easy syntax}%
+ \long\def\@firstoftwo#1#2{#1}
+ \long\def\@secondoftwo#1#2{#2}
+ \long\def\@firstofone#1{#1}
+ \long\def\@gobble#1{}
+ \long\def\@gobbletwo#1#2{}
+ \def\@car#1#2\@nil{#1}
+ \def\@makeother#1{\catcode`#1=12\relax}
+ \long\def\@ifnextchar#1#2#3{%
+ \let\reserved@d=#1%
+ \def\reserved@a{#2}%
+ \def\reserved@b{#3}%
+ \futurelet\@let@arg\@ifnch}
+ \def\@ifnch{%
+ \ifx\@let@arg\@sptoken
+ \let\reserved@c\@xifnch
+ \else
+ \ifx\@let@arg\reserved@d
+ \let\reserved@c\reserved@a
+ \else
+ \let\reserved@c\reserved@b
+ \fi
+ \fi
+ \reserved@c}
+ \def\:{\let\@sptoken= } \:
+ \def\:{\@xifnch} \expandafter\def\: {\futurelet\@let@arg\@ifnch}
+ \def\@ifstar#1{\@ifnextchar *{\@firstoftwo{#1}}}
+ \long\def\@testopt#1#2{\@ifnextchar[{#1}{#1[{#2}]}}
+ \def\@empty{}
+ \def\space{ }
+ \CF@def\printatom#1{\ifmmode\rm#1\else$\rm#1$\fi}% \printatom pour TeX et ConTeXt
+\else% fin des d\'efinitions LaTeX
+ \CF@def\printatom#1{\ensuremath{\mathrm{#1}}}% \printatom pour LaTeX.
+\fi
+
+\newcount\CF@cnt@atomingroup
+\newcount\CF@cnt@groupnumber
+\newcount\CF@cnt@atomnumber
+\newcount\CF@cnt@cycle
+
+\newif\ifCF@incycle
+\newif\ifCF@cyclearc
+\newif\ifCF@definesubmol
+
+\newdimen\CF@dim
+
+\newbox\CF@lewis@box
+\newbox\CF@box@boxa
+\newbox\CF@box@boxb
+\newbox\CF@stuff@box
+
+\newwrite\CF@unused
+
+\CF@def\CF@specialchar@list{\[\]\:\(\)\,\-\=\~\!\?\<\>\;\*\|\#\@}
+
+\CF@def\CF@sanitize@catcode{%
+ \expandafter\CF@sanitize@catcode@i\expandafter{\CF@specialchar@list}%
+}
+
+\CF@def\CF@sanitize@catcode@i#1{%
+ \ifx\@empty#1\@empty
+ \else
+ \expandafter\@makeother\@car#1\@nil
+ \CF@swap@fi
+ \expandafter\CF@sanitize@catcode@i\expandafter{\@gobble#1}%
+ \fi
+}
+
+\CF@def\CF@save@catcode{%
+ \let\CF@restore@catcode\@empty
+ \expandafter\CF@save@catcode@i\expandafter{\CF@specialchar@list}%
+}
+
+\CF@def\CF@save@catcode@i#1{%
+ \ifx\@empty#1\@empty
+ \else
+ \CF@edefadd@tocs\CF@restore@catcode{\catcode`\expandafter\noexpand\@car#1\@nil=\number\expandafter\catcode\expandafter`\@car#1\@nil\noexpand\space}%
+ \CF@swap@fi
+ \expandafter\CF@save@catcode@i\expandafter{\@gobble#1}%
+ \fi
+}
+
+\CF@def\CF@node@content{\expandafter\printatom\expandafter{\csname atom@\number\CF@cnt@atomnumber\endcsname\CF@node@strut}}
+
+\CF@def\chemskipalign{%
+ \ifx\CF@bond@outcontentsaved\@empty% sauf si un \chemskipalign a \'et\'e fait \`a l'atome pr\'ec\'edent
+ \global\let\CF@bond@outcontentsaved\CF@bond@outcontent% sauvegarder l'atome d'o\`u vient la liaison
+ \fi
+ \let\CF@node@strut\@empty
+}
+
+\CF@def\CF@empty@node{{}}
+
+\CF@def\CF@cycle@inraduiscoeff{0.75}% coeff multiplicateur du rayon des arcs dans les cycles
+
+\CF@def\setcrambond#1#2#3{%
+ \def\CF@cram@basewidth{#1}%
+ \ifx\@empty#2\@empty\def\CF@cram@dashlength{1pt}\else\def\CF@cram@dashlength{#2}\fi
+ \ifx\@empty#3\@empty\def\CF@cram@dashsep{2pt}\else\def\CF@cram@dashsep{#3}\fi}
+\setcrambond{}{}{}
+
+\CF@def\setatomsep{\def\CF@atom@sep}% espacement des atomes li\'es
+\setatomsep{}
+
+\CF@def\setbondoffset{\def\CF@bond@offset}% offset des liaisons
+\setbondoffset{2pt}
+
+\CF@def\setdoublesep{\def\CF@double@sep}
+\setdoublesep{2pt}
+
+\CF@def\definesubmol{\CF@definesubmoltrue\CF@def@submol}
+\CF@def\redefinesubmol{\CF@definesubmolfalse\CF@def@submol}
+
+\CF@def\CF@def@submol#1{%
+ \begingroup
+ \def\CF@tmp@str{#1}%
+ \catcode`[\@ne\catcode`]\tw@
+ \futurelet\CF@toks@a\CF@test@nxttok
+}
+
+\CF@def\CF@test@nxttok{%
+ \if[\noexpand\CF@toks@a
+ \expandafter\expandafter\expandafter\CF@grab@optalias\expandafter\expandafter\expandafter{\expandafter\CF@tmp@str\expandafter}%
+ \else
+ \CF@swap@fi
+ \expandafter\endgroup
+ \expandafter\CF@def@submol@i\expandafter{\CF@tmp@str}{}%
+ \fi
+}
+
+\CF@def\CF@grab@optalias#1#2{%
+ \endgroup
+ \begingroup
+ \everyeof{\@nil}\endlinechar\m@ne
+ \expandafter\assign@tonil\expandafter\CF@tmp@str\scantokens{#2}%
+ \CF@expand@second{\endgroup\CF@def@submol@i{#1}}\CF@tmp@str
+}
+
+\CF@def\CF@def@submol@i#1#2#3{% #1 nom, #2 = code si liaison arrive de droite , #3 = code si liaison arrive de gauche
+ \ifcat\relax\expandafter\noexpand\@car#1\@nil% si #1 est une s\'equence de contr\^ole
+ \expandafter\ifdefined\@car#1\@nil
+ \ifCF@definesubmol
+ \immediate\write\CF@unused{Package \CF@package@name\space Warning: the macro \expandafter\string\@car#1\@nil\space is already defined, the previous definition is lost on input line \the\inputlineno.}%
+ \fi
+ \fi
+ \ifx\@empty#2\@empty
+ \expandafter\def\@car#1\@nil{\@empty#3}%
+ \else
+ \expandafter\def\@car#1\@nil{%
+ \romannumeral
+ \ifdim\CF@current@angle pt>90pt
+ \ifdim\CF@current@angle pt<270pt
+ \expandafter\expandafter\expandafter\@firstoftwo
+ \else
+ \expandafter\expandafter\expandafter\@secondoftwo
+ \fi
+ \else
+ \expandafter\@secondoftwo
+ \fi
+ {\z@#2}{\z@#3}}%
+ \fi
+ \else
+ \ifcsname CF@@#1\endcsname
+ \ifCF@definesubmol
+ \immediate\write\CF@unused{Package \CF@package@name\space Warning:the submol "#1" is already defined, the previous definition is lost on input line \the\inputlineno.}%
+ \fi
+ \fi
+ \ifx\@empty#2\@empty
+ \expandafter\def\csname CF@@#1\endcsname{\@empty#3}% "\@empty" car tout ça sera 1-d\'evelopp\'e lorsque rencontr\'ee
+ \else
+ \expandafter\def\csname CF@@#1\endcsname{%
+ \romannumeral% donnera le d\'eveloppement souhait\'e en 1 coup
+ \ifdim\CF@current@angle pt>90pt
+ \ifdim\CF@current@angle pt<270pt
+ \expandafter\expandafter\expandafter\@firstoftwo
+ \else
+ \expandafter\expandafter\expandafter\@secondoftwo
+ \fi
+ \else
+ \expandafter\@secondoftwo
+ \fi
+ {\z@#2}{\z@#3}}%
+ \fi
+ \fi
+}
+
+\CF@def\CF@if@integer#1{%
+ \begingroup
+ \afterassignment\CF@after@integer
+ \CF@cnt@cycle0#1\relax
+}
+
+\CF@def\CF@after@integer#1\relax{%
+ \endgroup
+ \ifx\@empty#1\@empty\expandafter\@firstoftwo\else\expandafter\@secondoftwo\fi
+}
+
+\CF@def\CF@swap@fi#1\fi{\fi#1}
+
+\CF@def\CF@gobble@tonil#1\@nil{}
+
+\CF@def\CF@expafterarg@ntimes#1#2#3{%
+ \CF@expafterarg@ntimes@i{#1}{#3}%
+ \expandafter\CF@swap@arg\expandafter{\CF@tmp@str}{#2}%
+}
+
+\CF@def\CF@expafterarg@ntimes@i#1#2{%
+ \ifnum#1=\z@
+ \def\CF@tmp@str{#2}%
+ \else
+ \CF@swap@fi
+ \expandafter\CF@expafterarg@ntimes@i\expandafter{\number\numexpr#1-1\expandafter}\expandafter{#2}%
+ \fi
+}
+
+\CF@def\CF@swap@arg#1#2{#2{#1}}
+
+\CF@def\CF@expand@second#1#2{\expandafter\CF@swap@arg\expandafter{#2}{#1}}
+
+\CF@def\CF@swap@char#1#2{#2#1}
+
+\CF@def\CF@expand@afterfirst#1#2{\expandafter\CF@swap@char\expandafter{#2}{#1}}
+
+\CF@def\CF@edef@second#1#2{%
+ \edef\CF@tmp@str{#2}%
+ \expandafter\CF@swap@char\expandafter{\CF@tmp@str}{#1}%
+}
+
+\CF@def\CF@add@tocs#1#2{\expandafter\def\expandafter#1\expandafter{#1#2}}
+
+\CF@def\CF@expadd@tocs#1#2{\expandafter\CF@add@tocs\expandafter#1\expandafter{#2}}
+
+\CF@def\CF@edefadd@tocs#1#2{%
+ \edef\CF@tmp@str{#2}%
+ \expandafter\CF@add@tocs\expandafter#1\expandafter{\CF@tmp@str}%
+}
+
+\CF@def\CF@if@firsttokmatch#1#2{% est ce que #1 et #2 commencent par les mêmes tokens ?
+ \futurelet\CF@toks@a\CF@gobble@tonil#1\relax\@nil
+ \futurelet\CF@toks@b\CF@gobble@tonil#2\relax\@nil
+ \ifx\CF@toks@a\CF@toks@b\expandafter\@firstoftwo\else\expandafter\@secondoftwo\fi
+}
+
+\CF@def\CF@if@firsttokin#1{% teste si le token qui commence #1 appartient aux tokens mis dans #2
+ \futurelet\CF@toks@a\CF@gobble@tonil#1\relax\@nil
+ \CF@if@firsttokin@i
+}
+
+\CF@def\CF@if@firsttokin@i#1{%
+ \ifx\@empty#1\@empty
+ \expandafter\@secondoftwo
+ \else
+ \futurelet\CF@toks@b\CF@gobble@tonil#1\relax\@nil
+ \ifx\CF@toks@a\CF@toks@b
+ \expandafter\expandafter\expandafter\@firstoftwo
+ \else
+ \CF@swap@fi\CF@swap@fi
+ \expandafter\CF@if@firsttokin@i\expandafter{\@gobble#1}%
+ \fi
+ \fi
+}
+
+\CF@def\CF@if@instr#1#2{%
+ \def\CF@if@instr@i##1#2##2\@nil{\ifx\@empty##2\@empty\expandafter\@secondoftwo\else\expandafter\@firstoftwo\fi}%
+ \CF@if@instr@i#1\@@nil#2\@nil
+}
+
+\CF@def\CF@after@space#1 #2\@nil{#2}
+
+\CF@def\CF@seek@node#1#2#3{% cherche un noeud au d\'ebut de #1 l'assigne dans la sc #2 et met le reste dans #3
+ \let#2\@empty
+ \def#3{#1}%
+ \futurelet\CF@toks@a\CF@gobble@tonil#1\relax\@nil
+ \ifx\CF@toks@a\@sptoken\expandafter\@firstoftwo\else\expandafter\@secondoftwo\fi
+ {\expandafter\CF@seek@node@i\expandafter{\CF@after@space#1\@nil}#2#3}% ignore l'espace qui commence un groupe d'atome
+ {\CF@seek@node@i{#1}#2#3}%
+}
+
+\CF@def\CF@seek@node@i#1#2#3{%
+ \ifx\@empty#1\@empty
+ \let#3\@empty
+ \else
+ \futurelet\CF@toks@a\CF@gobble@tonil#1\relax\@nil
+ \ifx\CF@toks@a\@sptoken\expandafter\@firstoftwo\else\expandafter\@secondoftwo\fi
+ {\CF@add@tocs#2{ }%
+ \CF@swap@fi\expandafter\CF@seek@node@i\expandafter{\CF@after@space#1\@nil}#2#3%
+ }%
+ {\ifx\CF@toks@a\bgroup\expandafter\@firstoftwo\else\expandafter\@secondoftwo\fi
+ {\CF@expadd@tocs#2{\expandafter{\@car#1\@nil}}%
+ \CF@swap@fi\expandafter\CF@seek@node@i\expandafter{\@gobble#1}#2#3%
+ }%
+ {\CF@if@firsttokin@i{-=(*<>!~}%
+ {\def#3{#1}}%
+ {\CF@expadd@tocs#2{\@car#1\@nil}%
+ \CF@swap@fi\expandafter\CF@seek@node@i\expandafter{\@gobble#1}#2#3%
+ }%
+ }%
+ }%
+ \fi
+}
+
+% on sait que #1 commence par -,=,~,<,>. On analyse cette liaison
+% #2 reçoit le type de liaisons (1 pour -, 2 pour =, 3 pour ~)
+\CF@def\CF@bond@findnum#1#2{%
+ \futurelet\CF@toks@a\CF@gobble@tonil#1\@nil
+ \edef#2{%
+ \ifx-\CF@toks@a1%
+ \else
+ \ifx=\CF@toks@a2%
+ \else
+ \ifx~\CF@toks@a3%
+ \else
+ \ifx>\CF@toks@a4%
+ \else
+ \ifx<\CF@toks@a5%
+ \else0% si 0 --> il y a une erreur non dûe \`a l'utilisateur
+ \fi
+ \fi
+ \fi
+ \fi
+ \fi}%
+ \ifnum#2>\thr@@% si c'est une liaison de Cram
+ \expandafter\futurelet\expandafter\CF@toks@a\expandafter\CF@gobble@tonil\@gobble#1\@nil% chope le caract\`ere suivant
+ \ifx:\CF@toks@a
+ \edef#2{\number\numexpr#2+2}% si c 'est un ":", signe du pointill\'e, ajoute 2
+ \else
+ \ifx|\CF@toks@a
+ \edef#2{\number\numexpr#2+4}% si c 'est un "|", signe du triangle \'evid\'e, ajouter 4
+ \fi
+ \fi
+ \fi
+}
+
+\CF@def\CF@analyse@bondoffset#1,#2\@nil{%
+ \def\CF@start@offset{#1}\def\CF@end@offset{#2}%
+}
+
+\expandafter\CF@def\expandafter\CF@grab@bondoffset\string#(#1)#2\@nil{%
+ \ifx\@empty#1\@empty
+ \else
+ \CF@if@instr{#1},%
+ {\CF@analyse@bondoffset#1\@nil}%
+ {\def\CF@start@offset{#1}}%
+ \fi
+ \def\CF@remain@afterbond{#2}%
+}
+
+\CF@def\CF@analyse@bond#1#2{%
+ \CF@bond@findnum{#1}#2%
+ \expandafter\def\expandafter\CF@remain@afterbond\expandafter{\@gobble#1}%mange le premier signe de la liaison
+ \let\CF@doublebond@type\z@
+ \ifnum#2=\tw@% si c'est une double liaison, regarde s'il y a un + ou - derri\`ere
+ \expandafter\futurelet\expandafter\CF@toks@a\expandafter\CF@gobble@tonil\@gobble#1\@nil
+ \ifx^\CF@toks@a
+ \let\CF@doublebond@type\@ne
+ \expandafter\def\expandafter\CF@remain@afterbond\expandafter{\@gobbletwo#1}% mange le "^"
+ \else
+ \ifx_\CF@toks@a
+ \let\CF@doublebond@type\tw@
+ \expandafter\def\expandafter\CF@remain@afterbond\expandafter{\@gobbletwo#1}% mange le "_"
+ \fi
+ \fi
+ \else
+ \ifnum#2>5 % si c'est une laision de Cram pointill\'ee ou triangle \'evid\'e
+ \expandafter\def\expandafter\CF@remain@afterbond\expandafter{\@gobbletwo#1}% mange un caract\`ere de plus
+ \fi
+ \fi
+ \expandafter\expandafter\expandafter\CF@if@firsttokmatch\expandafter\expandafter\expandafter{\expandafter\CF@remain@afterbond\expandafter}\string##%
+ {\expandafter\CF@grab@bondoffset\CF@remain@afterbond\@nil}%
+ \relax
+ \expandafter\expandafter\expandafter\CF@if@firsttokmatch\expandafter\expandafter\expandafter{\expandafter\CF@remain@afterbond\expandafter}\string @%
+ {\expandafter\CF@grab@movearg\CF@remain@afterbond\@nil}%
+ \relax
+ \expandafter\CF@if@firsttokmatch\expandafter{\CF@remain@afterbond}[%
+ {\expandafter\CF@analyse@optarg\CF@remain@afterbond\@nil\CF@remain@afterbond}%
+ {\let\CF@current@stringangle\CF@default@stringangle
+ \let\CF@current@length\CF@default@length
+ \let\CF@current@fromatom\CF@default@fromatom
+ \let\CF@current@toatom\CF@default@toatom
+ \let\CF@current@tikz\CF@default@tikz
+ \let\CF@movebond@name\@empty
+ }%
+ \ifCF@incycle
+ \pgfmathparse{360/\CF@cycle@num+\CF@initcycle@angle}%
+ \edef\CF@current@stringangle{::+\pgfmathresult}%
+ \def\CF@initcycle@angle{0}%
+ \let\CF@current@length\CF@default@length% et on ignore la longueur de liaison sp\'ecifi\'ee
+ \fi
+ \expandafter\CF@set@bondangle\expandafter{\CF@current@stringangle}\CF@current@angle
+}
+
+\CF@def\CF@set@bondangle#1#2{% le code de la direction est contenu dans #1, en sortie, #2 contient l'angle
+ \ifx\@empty#1\@empty%
+ \let#2\CF@default@angle
+ \else
+ \if:\expandafter\noexpand\@car#1\@nil
+ \if:\expandafter\expandafter\expandafter\noexpand\expandafter\@car\@gobble#1\@nil
+ \pgfmathparse{\CF@previous@angle+\expandafter\@gobble\@gobble#1}%
+ \let#2\pgfmathresult
+ \else
+ \expandafter\def\expandafter#2\expandafter{\@gobble#1}
+ \fi% puis normalise l'angle entre 0 et 360
+ \ifdim\ifdim#2pt<\z@-\fi#2pt>360pt % si |#2|>360
+ \pgfmathparse{#2-360*floor(#2/360)}%
+ \ifdim\pgfmathresult pt<\z@\pgfmathparse{\pgfmathresult+360}\fi
+ \let#2\pgfmathresult
+ \else
+ \ifdim#2pt<\z@
+ \pgfmathparse{#2+360}%
+ \let#2\pgfmathresult
+ \fi
+ \fi
+ \else
+ \ifnum#1>7
+ \pgfmathparse{#1-floor(#1/8)*8}%
+ \ifdim\pgfmathresult pt<\z@\pgfmathparse{\pgfmathresult+8}\fi
+ \edef#2{\ifcase\expandafter\CF@int@part\pgfmathresult\@nil0\or45\or90\or135\or180\or225\or270\or315\else-1\fi}% angle =-1 --> erreur
+ \else
+ \edef#2{\ifcase#1 0\or45\or90\or135\or180\or225\or270\or315\else-1\fi}%
+ \fi
+ \fi
+ \fi
+}
+
+\CF@def\CF@int@part#1.#2\@nil{#1 }
+
+\CF@def\CF@analyse@movearg#1,#2\@nil#3{%
+ \def#3{#1}\def\CF@movebond@coeff{#2}%
+}
+
+% Argument limit\'es l\'egitimes ici car #2 (qui est ce qui suit "@{<nom>}" dans l'argument optionnel) ne DOIT
+% pas commencer par une accolade.
+\expandafter\CF@def\expandafter\CF@grab@movearg\string @#1#2\@nil{%
+ \CF@if@instr{#1},%
+ {\CF@analyse@movearg#1\@nil\CF@movebond@name}%
+ {\def\CF@movebond@name{#1}\def\CF@movebond@coeff{0.5}}%
+ \def\CF@remain@optarg{#2}%
+}
+
+\CF@def\CF@testempty@andassign#1#2#3{\ifx\@empty#2\@empty\let#1#3\else\def#1{#2}\fi}
+
+\CF@def\CF@sanitize@lastitem#1,\@empty#2\@nil{#1}
+
+\CF@def\CF@parse@optlist#1,#2,#3,#4,#5\@nil{%
+ \CF@testempty@andassign\CF@current@stringangle{#1}\CF@default@stringangle
+ \CF@testempty@andassign\CF@current@length{#2}\CF@default@length
+ \CF@testempty@andassign\CF@current@fromatom{#3}\CF@default@fromatom
+ \CF@testempty@andassign\CF@current@toatom{#4}\CF@default@toatom
+ \expandafter\CF@testempty@andassign\expandafter\CF@current@tikz\expandafter{\CF@sanitize@lastitem#5,\@empty\@nil}\CF@default@tikz
+}%
+
+\CF@def\CF@analyse@optarg[#1]#2\@nil#3{%
+ \ifx\@empty#1\@empty
+ \else
+ \CF@expand@afterfirst{\CF@if@firsttokmatch{#1}}{\string @}%
+ {\CF@grab@movearg#1\@nil}%
+ {\let\CF@movebond@name\@empty
+ \def\CF@remain@optarg{#1}}%
+ \expandafter\CF@parse@optlist\CF@remain@optarg,\@empty,\@empty,\@empty,\@empty\@nil
+ \def#3{#2}%
+ \fi
+}
+
+\CF@def\CF@seek@submol{%
+ \expandafter\CF@if@firsttokmatch\expandafter{\CF@remain@molecule}!%
+ {\expandafter\expandafter\expandafter\def\expandafter\expandafter\expandafter
+ \CF@remain@molecule\expandafter\expandafter\expandafter{\expandafter\@gobble\CF@remain@molecule}% enl\`eve le ``!''
+ \ifcat\relax\expandafter\expandafter\expandafter\noexpand\expandafter\@car\CF@remain@molecule\@nil
+ \CF@expafterarg@ntimes5{\def\CF@insert@submol}{\expandafter\@car\CF@remain@molecule\@nil}%
+ \else
+ \CF@expafterarg@ntimes3{\def\CF@insert@submol}{\csname CF@@\expandafter\@car\CF@remain@molecule\@nil\endcsname}%
+ \fi
+ \expandafter\expandafter\expandafter\def\expandafter\expandafter\expandafter\CF@remain@molecule\expandafter\expandafter\expandafter
+ {\csname CF@insert@submol\expandafter\expandafter\expandafter\endcsname\csname @gobble\expandafter\endcsname\CF@remain@molecule}%
+ \CF@seek@submol
+ }%
+ \relax
+}
+
+\CF@def\CF@insert@emptygroup#1{% ins\`ere {} au d\'ebut de la sc #1
+ \expandafter\def\expandafter#1\expandafter{\expandafter{\expandafter}#1}%
+}
+
+\CF@def\CF@make@other#1{%
+ \ifx\@empty#1\@empty
+ \else
+ \expandafter\@makeother\@car#1\@nil
+ \CF@swap@fi
+ \expandafter\CF@make@other\expandafter{\@gobble#1}%
+ \fi
+}
+
+\CF@def\chemfig{\@testopt\CF@chemfig@i{}}
+
+\CF@def\CF@chemfig@i[#1]{\@testopt{\CF@chemfig@ii[#1]}{}}
+
+\CF@def\CF@chemfig@ii[#1][#2]{%
+ \edef\CF@tmp@str{[remember picture,every node/.style={anchor=base,inner sep=0pt,outer sep=0pt,minimum size=0pt\ifx\@empty#2\@empty\else,#2\fi},baseline\ifx\@empty#1\@empty\else,#1\fi]}%
+ \expandafter\tikzpicture\CF@tmp@str
+ \begingroup
+ \let\CF@hook@list\@empty
+ \ifx\CF@atom@sep\@empty\def\CF@atom@sep{3em}\fi
+ \ifx\CF@cram@basewidth\@empty\def\CF@cram@basewidth{1.5ex}\fi
+ \CF@incyclefalse
+ \CF@cnt@groupnumber\z@
+ \let\CF@last@action\z@% 0=d\'ebut du dessin 1=trac\'e d'un noeud 2=trac\'e d'une liaison
+ \let\CF@start@offset\@empty
+ \let\CF@end@offset\@empty
+ \let\CF@bond@outcontentsaved\@empty
+ \def\CF@cycle@anglecorrection{180/\CF@cycle@num}%
+ \everyeof{\@nil}\endlinechar\m@ne
+ \CF@sanitize@catcode
+ \CF@chemfig@iii
+}
+
+\CF@def\CF@chemfig@iii#1{%
+ \CF@chemfig@iv{#1}%
+ \endtikzpicture
+ \let\CF@split@state\z@
+}
+
+\CF@def\CF@chemfig@iv#1{% #1 est le code de la mol\'ecule
+ \ifnum\CF@last@action=\thr@@
+ \ifCF@incycle
+ \def\CF@default@angle{0}%
+ \else
+ \ifnum\CF@cnt@cycle=\z@% si c'est le d\'ebut d'un cycle
+ \pgfmathparse{\CF@previous@angle+180+\CF@cycle@anglecorrection}% on met la liaison \`a +180° + correction
+ \else
+ \pgfmathparse{\CF@previous@angle-90+180/\CF@cycle@num}% sinon \`a la bissectrice du sommet du cycle
+ \fi
+ \let\CF@default@angle\pgfmathresult
+ \fi
+ \let\CF@default@stringangle\@empty
+ \else
+ \def\CF@default@angle{0}%
+ \def\CF@default@stringangle{:0}% angle pris par d\'efaut si le champ est vide
+ \fi
+ \let\CF@current@angle\CF@default@angle
+ \ifCF@incycle\else\def\CF@default@length{1}\fi% longueur de la liaison par d\'efaut sauf pour un cycle o\`u on prend celle en cours
+ \let\CF@default@fromatom\@empty% numero de l'atome d'o\`u partent les liaisons par d\'efaut
+ \let\CF@default@toatom\@empty% num\'ero de l'atome o\`u arrivent les laisons par d\'efaut
+ \let\CF@default@tikz\@empty
+ \if[\expandafter\noexpand\@car#1\@nil
+ \CF@analyse@optarg#1\@nil\CF@remain@molecule
+ \expandafter\CF@set@bondangle\expandafter{\CF@current@stringangle}\CF@current@angle
+ \let\CF@default@angle\CF@current@angle
+ \let\CF@previous@angle\CF@current@angle
+ \unless\ifx\@empty\CF@current@stringangle\let\CF@default@angle\CF@current@angle\fi
+ \unless\ifx\@empty\CF@current@length\let\CF@default@length\CF@current@length\fi
+ \unless\ifx\@empty\CF@current@fromatom\let\CF@default@fromatom\CF@current@fromatom\fi
+ \unless\ifx\@empty\CF@current@toatom\let\CF@default@toatom\CF@current@toatom\fi
+ \unless\ifx\@empty\CF@current@tikz\let\CF@default@tikz\CF@current@tikz\fi
+ \else
+ \def\CF@remain@molecule{#1}% on prend tout puisque pas d'argument optionnel au d\'ebut
+ \fi% apr\`es l'argument entre crochet au d\'ebut, on passe \`a la suite
+ \ifCF@incycle% si on commence un cycle
+ \let\CF@current@angle\CF@previous@angle
+ \else
+ \let\CF@current@angle\CF@default@angle
+ \fi
+ \edef\CF@default@stringangle{:\CF@default@angle}%
+ \let\CF@current@length\CF@default@length
+ \let\CF@current@fromatom\CF@default@fromatom
+ \let\CF@current@toatom\CF@default@toatom
+ \let\CF@current@tikz\CF@default@tikz
+ \ifnum\CF@last@action=\z@
+ \let\CF@previous@angle\CF@default@angle
+ \node(CF@node){};
+ \expandafter\CF@if@firsttokin\expandafter{\CF@remain@molecule}{-=(*~?<>}%
+ {\CF@insert@emptygroup\CF@remain@molecule}%
+ \relax
+ \fi
+ \CF@chemfig@v
+}
+
+\CF@def\CF@chemfig@v{%
+ \let\CF@next@action\CF@chemfig@v% \`a prioi, on reboucle
+ \ifx\CF@remain@molecule\@empty
+ \let\CF@next@action\endgroup
+ \else
+ \CF@seek@submol
+ \expandafter\CF@seek@node\expandafter{\CF@remain@molecule}\CF@current@atomgroup\CF@remain@molecule
+ \ifx\@empty\CF@current@atomgroup% pas de noeud pour commencer ?
+ \def\CF@bond@outnode{n\CF@last@groupnumber-%
+ \ifx\CF@current@fromatom\@empty
+ \ifdim\CF@current@angle pt<90pt \number\CF@cnt@atomingroup
+ \else\ifdim\CF@current@angle pt>270pt \number\CF@cnt@atomingroup\else1\fi
+ \fi
+ \else\CF@current@fromatom
+ \fi}%
+ \expandafter\futurelet\expandafter\CF@toks@a\expandafter\CF@gobble@tonil\CF@remain@molecule\relax\@nil
+ \CF@if@firsttokin@i{-=<>~}% la suite est une liaison
+ {\ifnum\CF@last@action=\tw@% c'est la deuxi\`eme liaison cons\'ecutive ?
+ \CF@insert@emptygroup\CF@remain@molecule% ins\`ere un groupe vide
+ \edef\CF@bond@outnode{\CF@bond@outnode}%
+ \else
+ \ifCF@incycle\advance\CF@cnt@cycle\@ne\fi
+ \expandafter\CF@analyse@bond\expandafter{\CF@remain@molecule}\CF@bond@type
+ \edef\CF@bond@outnode{\CF@bond@outnode}%
+ \let\CF@remain@molecule\CF@remain@afterbond
+ \ifCF@incycle
+ \ifnum\CF@cnt@cycle=\CF@cycle@num\relax
+ \expandafter\expandafter\expandafter\@firstoftwo
+ \else
+ \expandafter\expandafter\expandafter\@secondoftwo
+ \fi
+ \else
+ \expandafter\@secondoftwo
+ \fi
+ {\let\CF@next@action\endgroup
+ \CF@draw@bond\CF@bond@type{\CF@bond@outnode}{\CF@hook@cycle}\CF@previous@atomgroup\CF@hook@atomgroup
+ }%
+ {\node[at=(\CF@bond@outnode),shift=(\ifcase\CF@split@state\or180-\or-\fi\CF@current@angle:\CF@current@length*\CF@atom@sep)](CF@node){};
+ \let\CF@previous@angle\CF@current@angle
+ \let\CF@last@action\tw@
+ }%
+ \fi
+ \ifx\CF@remain@molecule\@empty% plus rien apr\`es la liaison -> ins\`ere un groupe vide
+ \CF@insert@emptygroup\CF@remain@molecule
+ \fi
+ }%
+ {\edef\CF@bond@outnode{\CF@bond@outnode}% \'evalue le l'atome de d\'epart de liaison
+ \ifx(\CF@toks@a\expandafter\@firstoftwo\else\expandafter\@secondoftwo\fi% une parenth\`ese pour commencer ?
+ {\ifnum\CF@last@action=\tw@% il y avait une liaison juste avant ?
+ \CF@insert@emptygroup\CF@remain@molecule
+ \else
+ \expandafter\CF@grab@submol\expandafter{\CF@remain@molecule}%
+ \begingroup
+ \ifCF@incycle\let\CF@last@action\thr@@\fi% on \'etait dans un cycle
+ \CF@incyclefalse
+ \aftergroup\CF@chemfig@v
+ \def\CF@next@action{\expandafter\CF@chemfig@iv\expandafter{\CF@sub@mol}}%
+ \fi
+ }%
+ {\ifx\CF@remain@molecule\@empty
+ \let\CF@next@action\endgroup
+ \else% ce qui reste apr\`es le noeud courant n'est pas vide, ne commence pas par "-=~", ni par une parenth\`ese
+ \ifx*\CF@toks@a\expandafter\@firstoftwo\else\expandafter\@secondoftwo\fi% un cycle ?
+ {\ifnum\CF@last@action=\tw@
+ \CF@insert@emptygroup\CF@remain@molecule% ins\`ere un groupe vide
+ \else
+ \ifCF@incycle\let\CF@last@action\thr@@\fi% on \'etait dans un cycle
+ \ifnum\CF@last@action=\thr@@\let\CF@lastcycle@num\CF@cycle@num\fi
+ \CF@expafterarg@ntimes2\CF@if@firsttokmatch{\expandafter\@gobble\CF@remain@molecule}*% un 2\`e "*" ?
+ {\CF@expafterarg@ntimes2{\def\CF@remain@molecule}{\expandafter\@gobble\CF@remain@molecule}% enl\`eve la 1er \'etoile
+ \CF@expafterarg@ntimes2\CF@if@firsttokmatch{\expandafter\@gobble\CF@remain@molecule}[% un crochet ensuite ?
+ {\expandafter\CF@cycle@parsepreamblewithoptarg\CF@remain@molecule\@nil% \begingroup inclus
+ }%
+ {\def\CF@cyclearc@startangle{0}\def\CF@cyclearc@endangle{360}%
+ \let\CF@cyclearc@directtikz\@empty
+ \expandafter\CF@cycle@parsepreamble\CF@remain@molecule\@nil% \begingroup inclus
+ }%
+ \CF@cyclearctrue
+ }%
+ {\expandafter\CF@cycle@parsepreamble\CF@remain@molecule\@nil% \begingroup inclus
+ \CF@cyclearcfalse
+ }%
+ \CF@cnt@cycle\z@
+ \edef\CF@hook@cycle{\CF@bond@outnode}%
+ \let\CF@hook@atomgroup\CF@previous@atomgroup
+ \CF@incycletrue
+ \ifnum\CF@last@action=\thr@@
+ \pgfmathparse{360/\CF@lastcycle@num-180}% c'est un cycle dans un cycle
+ \else
+ \pgfmathparse{-180/\CF@cycle@num-90+\CF@cycle@anglecorrection}%
+ \fi
+ \let\CF@initcycle@angle\pgfmathresult
+ \ifCF@cyclearc% on doit tracer l'arc de cercle dans le cycle ?
+ \pgfmathparse{\CF@cycle@inraduiscoeff*\CF@current@length*\CF@atom@sep/(2*tan(180/\CF@cycle@num))}%
+ \let\CF@cyclearc@radius\pgfmathresult
+ \pgfmathparse{\CF@current@angle+\CF@initcycle@angle+180/\CF@cycle@num+90}
+ \let\CF@cyclearc@initangle\pgfmathresult
+ \pgfmathparse{\CF@current@length*\CF@atom@sep/(2*sin(180/\CF@cycle@num))}%
+ \node[at=(\CF@bond@outnode),shift=(\CF@cyclearc@initangle:\pgfmathresult pt)](arccenter){};% le centre de l'arc
+ \node[at=(arccenter),shift=(\CF@cyclearc@startangle:\CF@cyclearc@radius pt)](initarc){};% le d\'ebut de l'arc
+ \expandafter\draw\expandafter[\CF@cyclearc@directtikz](initarc) arc (\CF@cyclearc@startangle:\CF@cyclearc@endangle:\CF@cyclearc@radius pt);
+ \fi
+ \aftergroup\CF@chemfig@v
+ \def\CF@next@action{\expandafter\CF@chemfig@iv\expandafter{\CF@sub@mol}}%
+ \fi
+ }%
+ {\errmessage{Package \CF@package@name\space Error: something went wrong at this point: \detokenize\expandafter{\CF@remain@molecule}^^JIf you think it's a bug, please, send a Minimal Example to the author.}}%
+ \fi}%
+ }%
+ \else
+ \CF@expand@second{\CF@expand@second{\CF@expand@second\CF@draw@atomgroup\CF@current@angle}\CF@current@toatom}\CF@current@atomgroup
+ \fi
+ \fi
+ \CF@next@action
+}
+
+\CF@def\CF@cycle@parsepreamble*#1#2\@nil{%
+ \ifnum#1<\thr@@
+ \errmessage{Package \CF@package@name\space Error: A cycle must be at least a triangle.^^JThe number following "*" must be 3 or more}%
+ \fi
+ \def\CF@remain@molecule{#2}%
+ \expandafter\CF@grab@submol\expandafter{\CF@remain@molecule}%
+ \begingroup
+ \def\CF@cycle@num{#1}%
+}
+
+\CF@def\CF@cycle@parsepreamblewithoptarg*[#1]#2#3\@nil{%
+ \CF@cycle@parseoptarg#1,\@empty,\@empty,\@empty\@nil
+ \CF@cycle@parsepreamble*#2#3\@nil
+}
+
+\CF@def\CF@cycle@parseoptarg#1,#2,#3\@nil{%
+ \ifx\@empty#1\@empty\def\CF@cyclearc@startangle{0}\else\def\CF@cyclearc@startangle{#1}\fi
+ \ifx\@empty#2\@empty\def\CF@cyclearc@endangle{360}\else\def\CF@cyclearc@endangle{#2}\fi
+ \expandafter\def\expandafter\CF@cyclearc@directtikz\expandafter{\CF@sanitize@lastitem#3,\@empty\@nil}%
+}
+
+\CF@def\CF@grab@submol#1{%
+ \begingroup
+ \catcode`(\@ne\catcode`)\tw@
+ \expandafter\expandafter\expandafter
+ \endgroup
+ \expandafter\CF@grab@submol@i\scantokens{\relax#1}% le \relax sert \`a meubler pour ne pas que l'argument d\'elimit\'e n'enl\`eve les accolades
+}
+
+\CF@def\CF@grab@submol@i#1\@nil{%
+ \expandafter\assign@tonil\expandafter\CF@remain@molecule\scantokens\expandafter\expandafter\expandafter{\expandafter\@gobble\@gobble#1}%
+ \expandafter\assign@tonil\expandafter\CF@sub@mol\scantokens\expandafter\expandafter\expandafter{\expandafter\@car\@gobble#1\@nil}%
+}
+
+\CF@def\assign@tonil#1#2\@nil{\def#1{#2}}
+
+\CF@def\CF@ifcar@isupperletter#1{%
+ \ifcat\relax\noexpand#1%
+ \let\CF@next\@secondoftwo% faux si c'est une sc
+ \else
+ \ifnum`#1<`A
+ \let\CF@next\@secondoftwo
+ \else
+ \ifnum`#1>`Z
+ \let\CF@next\@secondoftwo
+ \else
+ \let\CF@next\@firstoftwo
+ \fi
+ \fi
+ \fi
+ \CF@next
+}
+
+% Cr\'e\'e 4 noeuds au dessus et au dessous des noeuds #1 et #2
+% \`a une distance de #3 du noeud #1 et #4 du noeud #2
+\CF@def\CF@create@normnodes#1#2#3#4{%
+ \ifx\@empty#3\@empty\else
+ \node[at=(#1),xshift=#3*\CF@norm@x,yshift=#3*\CF@norm@y](#11){};
+ \node[at=(#1),xshift=-#3*\CF@norm@x,yshift=-#3*\CF@norm@y](#12){};
+ \fi
+ \ifx\@empty#4\@empty\else
+ \node[at=(#2),xshift=#4*\CF@norm@x,yshift=#4*\CF@norm@y](#21){};
+ \node[at=(#2),xshift=-#4*\CF@norm@x,yshift=-#4*\CF@norm@y](#22){};
+ \fi
+}
+
+\CF@def\CF@compute@nodevect#1#2{%
+ \pgfextractx\CF@dim{\pgfpointanchor{#1}{center}}\edef\CF@dimax{\the\CF@dim}%
+ \pgfextracty\CF@dim{\pgfpointanchor{#1}{center}}\edef\CF@dimay{\the\CF@dim}%
+ \pgfextractx\CF@dim{\pgfpointanchor{#2}{center}}\edef\CF@dimbx{\the\CF@dim}%
+ \pgfextracty\CF@dim{\pgfpointanchor{#2}{center}}\edef\CF@dimby{\the\CF@dim}%
+ \pgfmathparse{veclen(\CF@dimbx-\CF@dimax,\CF@dimby-\CF@dimay)}\let\CF@len@vector\pgfmathresult
+ \pgfmathparse{(\CF@dimay-\CF@dimby)/\CF@len@vector}\let\CF@norm@x\pgfmathresult
+ \pgfmathparse{(\CF@dimbx-\CF@dimax)/\CF@len@vector}\let\CF@norm@y\pgfmathresult
+}
+
+\CF@def\CF@draw@bond#1#2#3#4#5{% #1=type de liaison #2 et #3:nom de noeuds de d\'ebut et fin #4 et #5: contenu des atomes de d\'ebut et fin
+ \edef\CF@start@offset{%
+ \ifx\CF@start@offset\@empty
+ \ifx#4\CF@empty@node0pt\else\ifx#4\@empty0pt\else\CF@bond@offset\fi\fi
+ \else
+ \CF@start@offset
+ \fi
+ }%
+ \edef\CF@end@offset{%
+ \ifx\CF@end@offset\@empty
+ \ifx#5\CF@empty@node0pt\else\ifx#5\@empty0pt\else\CF@bond@offset\fi\fi
+ \else
+ \CF@end@offset
+ \fi
+ }%
+ \path(#2)--(#3)coordinate[pos=0](#2@)coordinate[pos=1](#3@);%
+ \CF@compute@nodevect{#2@}{#3@}%
+ \pgfmathparse{\CF@start@offset/\CF@len@vector}\let\CF@start@coeff\pgfmathresult
+ \pgfmathparse{1-\CF@end@offset/\CF@len@vector}\let\CF@end@coeff\pgfmathresult
+ \path(#2@)--(#3@)coordinate[pos=\CF@start@coeff](#2@@)coordinate[pos=\CF@end@coeff](#3@@);%
+ \unless\ifx\CF@movebond@name\@empty% on doit poser un nœud sur la liaison
+ \path(#2@@)--(#3@@)coordinate[overlay,pos=\CF@movebond@coeff](\CF@movebond@name);
+ \let\CF@movebond@name\@empty
+ \fi
+ \ifcase#1\relax
+ \errmessage{Package \CF@package@name\space Error: unknown bond type, this error should not occur^^JIf you think it's a bug, send a Minimal Example to the author}%
+ \or% 1 = liaison simple
+ \CF@draw@bond@i(#2@@)--(#3@@);
+ \or% 2 = liaison double
+ \ifCF@incycle
+ \ifnum\CF@doublebond@type=\z@
+ \let\CF@doublebond@type\@ne
+ \fi
+ \pgfmathparse{\CF@double@sep*tan(180/\CF@cycle@num)}%
+ \let\CF@doublebond@lengthcorrection\pgfmathresult
+ \fi
+ \ifcase\CF@doublebond@type
+ \CF@create@normnodes{#2@@}{#3@@}{\CF@double@sep/2}{\CF@double@sep/2}%
+ \CF@draw@bond@i(#2@@1)--(#3@@1);
+ \CF@draw@bond@i(#2@@2)--(#3@@2);
+ \or
+ \CF@create@normnodes{#2@@}{#3@@}\CF@double@sep\CF@double@sep
+ \CF@draw@bond@i(#2@@)--(#3@@);
+ \begingroup% ajuste \'eventuellement les longueurs des liaisons doubles
+ \ifCF@incycle
+ \ifdim\CF@start@offset=\z@
+ \CF@add@tocs\CF@current@tikz{,shorten <=\CF@doublebond@lengthcorrection pt}%
+ \fi
+ \ifdim\CF@end@offset=\z@
+ \CF@add@tocs\CF@current@tikz{,shorten >=\CF@doublebond@lengthcorrection pt}%
+ \fi
+ \fi
+ \CF@draw@bond@i(#2@@1)--(#3@@1);
+ \endgroup
+ \or
+ \CF@create@normnodes{#2@@}{#3@@}\CF@double@sep\CF@double@sep
+ \CF@draw@bond@i(#2@@)--(#3@@);
+ \begingroup% ajuste \'eventuellement les longueurs des liaisons doubles
+ \ifCF@incycle
+ \ifdim\CF@start@offset=\z@
+ \CF@add@tocs\CF@current@tikz{,shorten <=-\CF@doublebond@lengthcorrection pt}%
+ \fi
+ \ifdim\CF@end@offset=\z@
+ \CF@add@tocs\CF@current@tikz{,shorten >=-\CF@doublebond@lengthcorrection pt}%
+ \fi
+ \fi
+ \CF@draw@bond@i(#2@@2)--(#3@@2);
+ \endgroup
+ \fi
+ \or% 3 = liaison triple
+ \CF@create@normnodes{#2@@}{#3@@}\CF@double@sep\CF@double@sep
+ \CF@draw@bond@i(#2@@)--(#3@@);
+ \CF@draw@bond@i(#2@@1)--(#3@@1);
+ \CF@draw@bond@i(#2@@2)--(#3@@2);
+ \or% 4 = liaison Cram pleine de #2 vers #3
+ \CF@create@normnodes{#2@@}{#3@@}{\CF@cram@basewidth/2}{}%
+ \expandafter\filldraw\expandafter[\CF@current@tikz,line join=bevel](#2@@1)--(#2@@2)--(#3@@)--(#2@@1);
+ \or% 5 = liaison Cram pleine de #3 vers #2
+ \CF@create@normnodes{#3@@}{#2@@}{\CF@cram@basewidth/2}{}%
+ \expandafter\filldraw\expandafter[\CF@current@tikz,line join=bevel](#3@@1)--(#3@@2)--(#2@@)--(#3@@1);
+ \or% 6 = liaison Cram pointill\'ee de #2 vers #3
+ \scope
+ \CF@create@normnodes{#2@@}{#3@@}{\CF@cram@basewidth/2}{}%
+ \clip(#2@@1)--(#2@@2)--(#3@@)--(#2@@1);
+ \expandafter\draw\expandafter[\CF@current@tikz,dash pattern=on \CF@cram@dashlength off \CF@cram@dashsep,line width=\CF@cram@basewidth](#2@@)--(#3@@);
+ \endscope
+ \or% 7 = liaison Cram pointill\'ee de #3 vers #2
+ \scope
+ \CF@create@normnodes{#3@@}{#2@@}{\CF@cram@basewidth/2}{}%
+ \clip(#3@@1)--(#3@@2)--(#2@@)--(#3@@1);
+ \expandafter\draw\expandafter[\CF@current@tikz,dash pattern=on \CF@cram@dashlength off \CF@cram@dashsep,line width=\CF@cram@basewidth](#3@@)--(#2@@);
+ \endscope
+ \or% 8 = liaison Cram triangle \'evid\'e de #2 vers #3
+ \CF@create@normnodes{#2@@}{#3@@}{\CF@cram@basewidth/2}{}%
+ \expandafter\draw\expandafter[\CF@current@tikz,line join=bevel](#2@@1)--(#2@@2)--(#3@@)--(#2@@1);
+ \or% 9 = liaison Cram triangle \'evid\'e de #3 vers #1
+ \CF@create@normnodes{#3@@}{#2@@}{\CF@cram@basewidth/2}{}%
+ \expandafter\draw\expandafter[\CF@current@tikz,line join=bevel](#3@@1)--(#3@@2)--(#2@@)--(#3@@1);
+ \else
+ \errmessage{Package \CF@package@name\space Error: unknown bond type, this error should not occur^^JIf you think it's a bug, send a Minimal Example to the author}%
+ \fi
+ \let\CF@start@offset\@empty
+ \let\CF@end@offset\@empty
+}
+
+\CF@def\CF@draw@bond@i{\expandafter\draw\expandafter[\CF@current@tikz]}
+
+\CF@def\CF@hook@drawall{% dessine tous les crochets contenus dansla sc \CF@hook@draw
+ \unless\ifx\CF@hook@drawlist\@empty
+ \expandafter\CF@hook@drawfirst\CF@hook@drawlist\@nil% trace un lien de crochet \`a crochet
+ \expandafter\CF@hook@drawall
+ \fi
+}
+
+\CF@def\CF@hook@drawfirst[#1,#2,#3]#4#5#6#7#8\@nil{%
+ \def\CF@hook@drawlist{#8}%
+ \begingroup
+ \def\CF@current@tikz{#3}%
+ \def\CF@hook@startcontent{#6}\def\CF@hook@endcontent{#7}%
+ \CF@if@integer{#2}%
+ {\CF@draw@bond{#2}{#4}{#5}\CF@hook@startcontent\CF@hook@endcontent}%
+ {\CF@bond@findnum{#2}\CF@bond@currentnum
+ \CF@draw@bond\CF@bond@currentnum{#4}{#5}\CF@hook@startcontent\CF@hook@endcontent
+ }%
+ \endgroup
+}
+
+\CF@def\CF@extract@atom#1-#2\@nil{#2}% transforme le bound@outnode en n° de l'atome
+
+\CF@def\setnodestyle{\def\CF@node@style}
+\setnodestyle{}
+
+\expandafter\CF@def\expandafter\CF@gobble@movearg\string @#1#2\@nil#3%
+{%
+ \expandafter\def\csname atom@\number\CF@cnt@atomnumber\endcsname{#2}%
+ \CF@if@instr{#1},%
+ {\CF@analyse@movearg#1\@nil#3\let\CF@movebond@coeff\@empty}%
+ {\def#3{#1}}%
+ \ifx\@empty#2\@empty\let\CF@node@strut\@empty\fi
+}%
+
+\CF@def\hflipnext{\let\CF@split@state\@ne}
+
+\CF@def\vflipnext{\let\CF@split@state\tw@}
+\let\CF@split@state\z@
+
+\CF@def\CF@draw@atomgroup#1#2#3{% #1=angle d'arriv\'ee de la liaison #2=numero atome sur lequel arrive la liaison #3=groupe d'atomes
+ \expandafter\let\expandafter\CF@bond@outcontent% assigne le contenu de l'atome d'o\`u part la liaison
+ \csname
+ \ifdefined\CF@bond@outnode
+ atom@\expandafter\CF@extract@atom\CF@bond@outnode\@nil
+ \else
+ @empty%
+ \fi
+ \endcsname
+ \global\advance\CF@cnt@groupnumber\@ne
+ \let\CF@current@atom\@empty
+ \global\let\CF@hook@drawlist\@empty
+ \CF@cnt@atomingroup\z@
+ \CF@if@firsttokmatch{#3}?{\CF@draw@atomgroup@i{{}#3}}{\CF@draw@atomgroup@i{#3}}%
+ \def\CF@current@atomgroup{#3}%
+ \CF@remove@movearg\CF@current@atomgroup% enl\`eve les "@{<nom>}"
+ \CF@if@instr{#3}?%
+ {\CF@remove@hook\CF@current@atomgroup
+ \ifx\@empty\CF@current@atomgroup\let\CF@current@atomgroup\CF@empty@node\fi}%
+ \relax
+ \ifx\@empty#2\@empty%
+ \else
+ \ifnum#2<\@ne
+ \immediate\write\CF@unused{Package \CF@package@name\space Warning: no atom found at position #2.^^JPershaps you mispelled the optional argument of the bond on input line \the\inputlineno.}%
+ \else
+ \ifnum#2>\CF@cnt@atomingroup
+ \errmessage{Package \CF@package@name\space Error: no atom found at position #2, pershaps you mispelled the optional argument of the bond.}%
+ \fi
+ \fi
+ \fi
+ \edef\CF@hook@atomnumber{%
+ \ifx\@empty#2\@empty%\relax
+ \ifdim#1pt>90pt
+ \ifdim#1pt<270pt \number\CF@cnt@atomingroup\else1\fi
+ \else1%
+ \fi
+ \else#2%
+ \fi}%
+ \CF@cnt@atomnumber\CF@hook@atomnumber
+ \ifx\CF@current@atomgroup\CF@empty@node
+ \let\CF@node@strut\@empty
+ \else
+ \ifx\@empty\CF@bond@outcontentsaved
+ \def\CF@node@strut{\vphantom\CF@bond@outcontent}%
+ \else
+ \def\CF@node@strut{\vphantom\CF@bond@outcontentsaved}%
+ \fi
+ \fi
+ \edef\CF@opt@string{anchor=\ifnum\CF@last@action=\z@ base\else center\fi,at=(CF@node),\CF@node@style}% premier atome de la mol\'ecule affich\'e
+ \loop
+ \unless\ifnum\CF@cnt@atomnumber>\CF@cnt@atomingroup
+ \expandafter\expandafter\expandafter\futurelet\expandafter\expandafter\expandafter\CF@toks@a\expandafter\expandafter\expandafter
+ \CF@gobble@tonil\csname atom@\number\CF@cnt@atomnumber\endcsname\@nil
+ \expandafter\ifx\string @\CF@toks@a% l'atome courant commence par un "@"
+ \expandafter\expandafter\expandafter\CF@gobble@movearg\csname atom@\number\CF@cnt@atomnumber\endcsname\@nil\CF@moveatom@name
+ \expandafter\node\expandafter[\CF@opt@string,overlay](\CF@moveatom@name){\phantom{\CF@node@content}};%
+ \let\CF@moveatom@name\@empty
+ \fi
+ \expandafter\node\expandafter[\CF@opt@string](n\number\CF@cnt@groupnumber-\number\CF@cnt@atomnumber){\CF@node@content};%
+ \let\CF@node@strut\@empty
+ \advance\CF@cnt@atomnumber\@ne
+ \edef\CF@opt@string{anchor=base \ifnum\CF@split@state=\@ne east\else west\fi,at=(n\number\CF@cnt@groupnumber-\number\numexpr\CF@cnt@atomnumber-1.base \ifnum\CF@split@state=\@ne west\else east\fi),\CF@node@style}%
+ \repeat
+ \CF@cnt@atomnumber\CF@hook@atomnumber
+ \ifnum\CF@last@action=\tw@% s'il faut tracer une liaison
+ \gdef\CF@cycle@anglecorrection{0}% alors c'est qu'un cycle ne peut pas commencer la mol\'ecule : annulation de la correction d'angle
+ \CF@draw@bond\CF@bond@type{\CF@bond@outnode}{n\number\CF@cnt@groupnumber-\number\CF@cnt@atomnumber}\CF@previous@atomgroup\CF@current@atomgroup
+ \fi
+ \let\CF@last@action\@ne% met la derni\`ere action \`a 1 : affichage d'un noeud
+ \loop
+ \ifnum\CF@cnt@atomnumber>\@ne
+ \advance\CF@cnt@atomnumber\m@ne
+ \edef\CF@opt@string{anchor=base \ifnum\CF@split@state=\@ne west\else east\fi,at=(n\number\CF@cnt@groupnumber-\number\numexpr\CF@cnt@atomnumber+1.base \ifnum\CF@split@state=\@ne east\else west\fi),\CF@node@style}%
+ \expandafter\expandafter\expandafter\futurelet\expandafter\expandafter\expandafter\CF@toks@a\expandafter\expandafter\expandafter
+ \CF@gobble@tonil\csname atom@\number\CF@cnt@atomnumber\endcsname\@nil
+ \expandafter\ifx\string @\CF@toks@a% l'atome courant commence par un "@"
+ \expandafter\expandafter\expandafter\CF@gobble@movearg\csname atom@\number\CF@cnt@atomnumber\endcsname\@nil\CF@moveatom@name
+ \expandafter\node\expandafter[\CF@opt@string,overlay](\CF@moveatom@name){\phantom{\CF@node@content}};%
+ \let\CF@moveatom@name\@empty
+ \fi
+ \expandafter\node\expandafter[\CF@opt@string](n\number\CF@cnt@groupnumber-\number\CF@cnt@atomnumber){\CF@node@content};%
+ \repeat
+ \CF@hook@drawall
+ \edef\CF@last@groupnumber{\number\CF@cnt@groupnumber}%
+ \let\CF@previous@atomgroup\CF@current@atomgroup
+}
+
+\expandafter\CF@def\expandafter\CF@keep@movearg\string @#1#2\@nil{\expandafter\def\expandafter\CF@current@atom\expandafter{\string @{#1}}}
+
+\CF@def\CF@draw@atomgroup@i#1{% transforme #1 en un groupe d'atomes
+ \ifx\@empty#1\@empty
+ \expandafter\let\csname atom@\number\CF@cnt@atomingroup\endcsname\CF@current@atom
+ \else
+ \advance\CF@cnt@atomingroup\@ne
+ \futurelet\CF@toks@a\CF@gobble@tonil#1\@nil
+ \expandafter\ifx\string @\CF@toks@a\expandafter\@firstoftwo\else\expandafter\@secondoftwo\fi
+ {\CF@keep@movearg#1\@nil
+ \CF@swap@fi
+ \CF@remove@movearg@i#1\@nil\CF@after@movearg
+ \expandafter\CF@draw@atomgroup@ii\expandafter{\CF@after@movearg}%
+ }%
+ {\CF@swap@fi
+ \let\CF@current@atom\@empty
+ \CF@draw@atomgroup@ii{#1}%
+ }%
+ \fi
+}
+
+\CF@def\CF@draw@atomgroup@ii#1{%
+ \ifx\@empty#1\@empty
+ \expandafter\let\csname atom@\number\CF@cnt@atomingroup\endcsname\CF@current@atom
+ \else
+ \futurelet\CF@toks@a\CF@gobble@tonil#1\@nil
+ \ifx\bgroup\CF@toks@a\expandafter\@firstoftwo\else\expandafter\@secondoftwo\fi
+ {\CF@expadd@tocs\CF@current@atom{\expandafter{\@car#1\@nil}}%
+ \expandafter\CF@draw@atomgroup@iii\expandafter{\@gobble#1}%
+ }%
+ {\ifx\@sptoken\CF@toks@a\expandafter\@firstoftwo\else\expandafter\@secondoftwo\fi
+ {\CF@add@tocs\CF@current@atom{ }%
+ \expandafter\CF@draw@atomgroup@iii\expandafter{\CF@after@space#1\@nil}%
+ }%
+ {\CF@expadd@tocs\CF@current@atom{\@car#1\@nil}%
+ \expandafter\CF@draw@atomgroup@iii\expandafter{\@gobble#1}%
+ }%
+ }%
+ \fi
+}
+
+% enl\`eve tous les "@{nom}" de la sc #1
+\CF@def\CF@remove@movearg#1{%
+ \CF@expand@afterfirst{\expandafter\CF@if@instr\expandafter{#1}}{\string @}%
+ {\expandafter\CF@remove@movearg@i#1\@nil#1%
+ \CF@remove@movearg#1}%
+ \relax
+}
+
+% enl\`eve le premier "@{<nom>}" de l'argument et l'assigne \`a #2
+\CF@def\CF@remove@movearg@i#1\@nil#2{%
+ \expandafter\def\expandafter\CF@remove@movearg@ii\expandafter##\expandafter1\string @{%
+ \expandafter\def\expandafter#2\expandafter{\@gobble##1}% mange le \relax
+ \CF@remove@movearg@iii\relax
+ }%
+ \def\CF@remove@movearg@iii##1\@nil{\CF@expadd@tocs#2{\@gobbletwo##1}}% mange le \relax et le <nom>
+ \CF@remove@movearg@ii\relax#1\@nil
+}
+
+\CF@def\CF@draw@atomgroup@iii#1{% transforme #1 en un groupe d'atomes
+ \ifx\@empty#1\@empty%
+ \expandafter\let\csname atom@\number\CF@cnt@atomingroup\endcsname\CF@current@atom
+ \let\CF@current@atom\@empty
+ \else
+ \futurelet\CF@toks@a\CF@gobble@tonil#1\@nil
+ \expandafter\ifx\string @\CF@toks@a\expandafter\@firstoftwo\else\expandafter\@secondoftwo\fi
+ {\expandafter\let\csname atom@\number\CF@cnt@atomingroup\endcsname\CF@current@atom
+ \let\CF@current@atom\@empty
+ \CF@swap@fi\CF@draw@atomgroup@i{#1}%
+ }%
+ {\ifx|\CF@toks@a\expandafter\@firstoftwo\else\expandafter\@secondoftwo\fi
+ {\expandafter\let\csname atom@\number\CF@cnt@atomingroup\endcsname\CF@current@atom
+ \let\CF@current@atom\@empty
+ \CF@swap@fi\expandafter\CF@draw@atomgroup@i\expandafter{\@gobble#1}%
+ }%
+ {\ifx\@sptoken\CF@toks@a\expandafter\@firstoftwo\else\expandafter\@secondoftwo\fi
+ {\CF@add@tocs\CF@current@atom{ }%
+ \CF@swap@fi\expandafter\CF@draw@atomgroup@iii\expandafter{\CF@after@space#1\@nil}%
+ }%
+ {\ifx\bgroup\CF@toks@a\expandafter\@firstoftwo\else\expandafter\@secondoftwo\fi
+ {\CF@expadd@tocs\CF@current@atom{\expandafter{\@car#1\@nil}}%
+ \CF@swap@fi\expandafter\CF@draw@atomgroup@iii\expandafter{\@gobble#1}%
+ }%
+ {\expandafter\CF@ifcar@isupperletter\expandafter{\@car#1\@nil}%
+ {\expandafter\let\csname atom@\number\CF@cnt@atomingroup\endcsname\CF@current@atom
+ \let\CF@current@atom\@empty
+ \CF@swap@fi\CF@draw@atomgroup@i{#1}%
+ }%
+ {\ifx?\CF@toks@a\expandafter\@firstoftwo\else\expandafter\@secondoftwo\fi
+ {\expandafter\CF@if@firsttokmatch\expandafter{\@gobble#1}[% un crochet apr\`es le "?"
+ {\expandafter\CF@grab@optarg\@gobble#1\@nil\CF@after@hook}%
+ {\expandafter\CF@grab@optarg\expandafter[\expandafter]\@gobble#1\@nil\CF@after@hook}%
+ \CF@expand@second{\CF@expand@second\CF@if@instr\CF@hook@list}{\expandafter(\CF@hook@currentname)}% crochet d\'ej\`a d\'efini ?
+ {\expandafter\CF@hook@parselist\expandafter{\CF@hook@currentname}% va chercher les caract\'eristiques du crochet sauvegard\'e
+ \CF@edefadd@tocs\CF@hook@drawlist{%
+ [\CF@hook@currentname,\CF@hook@currentlink,\CF@hook@currenttikz]{\CF@hook@savedcoord}{n\number\CF@cnt@groupnumber-\number\CF@cnt@atomingroup}}%
+ \CF@expadd@tocs\CF@hook@drawlist{\expandafter{\CF@hook@savedcontent}}%
+ \CF@expadd@tocs\CF@hook@drawlist{\expandafter{\CF@current@atom}}% ajoute les 4 arguments \`a la liste des crochets \`a tracer
+ \global\let\CF@hook@drawlist\CF@hook@drawlist
+ }%
+ {\CF@edefadd@tocs\CF@hook@list{(\CF@hook@currentname)|n\number\CF@cnt@groupnumber-\number\CF@cnt@atomingroup|}%
+ \CF@expadd@tocs\CF@hook@list{\CF@current@atom|}%
+ \global\let\CF@hook@list\CF@hook@list
+ }%
+ \CF@swap@fi\expandafter\CF@draw@atomgroup@iii\expandafter{\CF@after@hook}%
+ }%
+ {\CF@expadd@tocs\CF@current@atom{\@car#1\@nil}%
+ \CF@swap@fi\expandafter\CF@draw@atomgroup@iii\expandafter{\@gobble#1}%
+ }%
+ }%
+ }%
+ }%
+ }%
+ }%
+ \fi
+}
+
+\CF@def\CF@kook@defaultname{a}
+\CF@def\CF@hook@defaultlink{-}
+\CF@def\CF@hook@defaulttikz{}
+
+\CF@def\CF@hook@parseoptarg#1,#2,#3\@nil{%
+ \CF@testempty@andassign\CF@hook@currentname{#1}\CF@kook@defaultname
+ \CF@testempty@andassign\CF@hook@currentlink{#2}\CF@hook@defaultlink
+ \CF@testempty@andassign\CF@hook@currenttikz{#3}\CF@hook@defaulttikz
+}
+
+\CF@def\CF@grab@optarg[#1]#2\@nil#3{%
+ \CF@hook@parseoptarg#1,,\@nil
+ \def#3{#2}%
+}
+
+\CF@def\CF@hook@parselist#1{% #1 est le nom du noeud \`a retrouver
+ \def\CF@hook@parselist@i##1(#1)|##2|##3|##4\@nil{%
+ \def\CF@hook@savedcoord{##2}\def\CF@hook@savedcontent{##3}%
+ }%
+ \expandafter\CF@hook@parselist@i\CF@hook@list\@nil
+}
+
+\CF@def\CF@remove@hook#1{% enl\`eve tous les crochets (et leurs arguments optionnels) de la sc #1
+ \expandafter\CF@if@instr\expandafter{#1}{?[}%
+ {\expandafter\expandafter\expandafter\def\expandafter\expandafter\expandafter#1%
+ \expandafter\expandafter\expandafter{\expandafter\CF@remove@opthook#1\@nil}%
+ \CF@remove@hook#1%
+ }%
+ {\CF@remove@hook@i#1}%
+}
+
+\CF@def\CF@remove@hook@i#1{%
+ \expandafter\CF@if@instr\expandafter{#1}?%
+ {\expandafter\expandafter\expandafter\def\expandafter\expandafter\expandafter#1%
+ \expandafter\expandafter\expandafter{\expandafter\CF@remove@singlehook#1\@nil}%
+ \CF@remove@hook@i#1%
+ }%
+ \relax
+}
+
+\CF@def\CF@remove@opthook#1?[#2]#3\@nil{#1#3}
+
+\CF@def\CF@remove@singlehook#1?#2\@nil{#1#2}
+
+\CF@def\setlewis{\@testopt\CF@setlewis{0.3ex}}
+
+\CF@def\CF@setlewis[#1]#2#3#4{%
+ \def\CF@lewis@widthdouble{#1}%
+ \ifx\@empty#2\@empty\def\CF@lewis@offset{0.4ex}\else\def\CF@lewis@offset{#2}\fi
+ \ifx\@empty#3\@empty\def\CF@lewis@length{1.5ex}\else\def\CF@lewis@length{#3}\fi
+ \ifx\@empty#4\@empty\def\CF@lewis@style{}\else\def\CF@lewis@style{#4}\fi
+}
+
+\setlewis{}{}{}
+
+\CF@def\lewis{\begingroup\@makeother;\@makeother:\CF@lewis@i}
+
+\CF@def\CF@lewis@i#1{\CF@lewis@ii#1\@nil}
+
+\CF@def\CF@lewis@ii#1,#2\@nil{%
+ \setbox\CF@lewis@box\hbox{\printatom{#2}}%
+ \def\CF@lewis@remainpos{#1}%
+ \let\CF@lewis@previouspos\@empty
+ \loop
+ \unless\ifx\CF@lewis@remainpos\@empty
+ \edef\CF@lewis@currentpos{\expandafter\@car\CF@lewis@remainpos\@nil}%
+ \edef\CF@lewis@remainpos{\expandafter\@gobble\CF@lewis@remainpos}%
+ \pgfmathparse{\wd\CF@lewis@box/2+\ifcase\CF@lewis@currentpos\space1\or1\or0\or-1\or-1\or-1\or0\or1\fi*(\wd\CF@lewis@box/2+\CF@lewis@offset)}%
+ \let\CF@lewis@x\pgfmathresult
+ \pgfmathparse{\ht\CF@lewis@box/2+\ifcase\CF@lewis@currentpos\space0\or1\or1\or1\or0\or-1\or-1\or-1\fi*(\ht\CF@lewis@box/2\ifnum\CF@lewis@currentpos>4 +\dp\CF@lewis@box\fi+\CF@lewis@offset)}%
+ \let\CF@lewis@y\pgfmathresult
+ \edef\CF@lewis@xoffset{\ifcase\CF@lewis@currentpos\space
+ 0\or0.70711\or1\or0.70711\or0\or-0.70711\or-1\or-0.70711\fi}%
+ \edef\CF@lewis@yoffset{\ifcase\CF@lewis@currentpos\space
+ -1\or-0.70711\or0\or0.70711\or1\or0.70711\or0\or-0.70711\fi}%
+ \pgfmathparse{veclen(\CF@lewis@xoffset,\CF@lewis@yoffset)}\let\CF@len@normvec\pgfmathresult
+ \edef\CF@lewis@diagmul{\ifcase\CF@lewis@currentpos\space1\or0\or1\or0\or1\or0\or1\or0\fi}% annule l'offset pour les diagonales
+ \if.\expandafter\@car\CF@lewis@remainpos\relax\@nil
+ \edef\CF@lewis@remainpos{\expandafter\@gobble\CF@lewis@remainpos}%
+ \tikz \draw[overlay,fill,black]
+ (\CF@lewis@x pt-\CF@lewis@yoffset*\CF@lewis@diagmul*0.1ex,
+ \CF@lewis@y pt+\CF@lewis@xoffset*\CF@lewis@diagmul*0.1ex)circle(0.15ex);%
+ \else
+ \if|\expandafter\@car\CF@lewis@remainpos\relax\@nil
+ \edef\CF@lewis@remainpos{\expandafter\@gobble\CF@lewis@remainpos}%
+ \expandafter\tikz\expandafter\draw\expandafter[\CF@lewis@style,overlay]%
+ (\CF@lewis@x-\CF@lewis@length*\CF@lewis@xoffset/2 pt,\CF@lewis@y-\CF@lewis@length*\CF@lewis@yoffset/2 pt)--
+ ([xshift=-\CF@lewis@yoffset*\CF@lewis@widthdouble,yshift=\CF@lewis@xoffset*\CF@lewis@widthdouble]\CF@lewis@x-\CF@lewis@xoffset*\CF@lewis@length/2 pt,\CF@lewis@y-\CF@lewis@yoffset*\CF@lewis@length/2 pt)--
+ ([xshift=-\CF@lewis@yoffset*\CF@lewis@widthdouble,yshift=\CF@lewis@xoffset*\CF@lewis@widthdouble]\CF@lewis@x+\CF@lewis@length*\CF@lewis@xoffset/2 pt,\CF@lewis@y+\CF@lewis@length*\CF@lewis@yoffset/2 pt)--
+ (\CF@lewis@x+\CF@lewis@length*\CF@lewis@xoffset/2 pt,\CF@lewis@y+\CF@lewis@length*\CF@lewis@yoffset/2 pt)--cycle;%
+ \else
+ \if:\expandafter\@car\CF@lewis@remainpos\relax\@nil
+ \edef\CF@lewis@remainpos{\expandafter\@gobble\CF@lewis@remainpos}%
+ \tikz \draw[overlay,fill,black]
+ (\CF@lewis@x pt-\CF@lewis@yoffset*\CF@lewis@diagmul*0.2ex-.2em*\CF@lewis@xoffset/\CF@len@normvec,\CF@lewis@y pt+\CF@lewis@xoffset*\CF@lewis@diagmul*0.2ex-.2em*\CF@lewis@yoffset/\CF@len@normvec)circle(0.15ex)%
+ (\CF@lewis@x pt-\CF@lewis@yoffset*\CF@lewis@diagmul*0.2ex+.2em*\CF@lewis@xoffset/\CF@len@normvec,\CF@lewis@y pt+\CF@lewis@xoffset*\CF@lewis@diagmul*0.2ex+.2em*\CF@lewis@yoffset/\CF@len@normvec)circle(0.15ex);%
+ \else
+ \expandafter\tikz\expandafter\draw\expandafter[\CF@lewis@style,overlay]%
+ (\CF@lewis@x-\CF@lewis@length*\CF@lewis@xoffset/2 pt,\CF@lewis@y-\CF@lewis@length*\CF@lewis@yoffset/2 pt)--%
+ (\CF@lewis@x+\CF@lewis@length*\CF@lewis@xoffset/2 pt,\CF@lewis@y+\CF@lewis@length*\CF@lewis@yoffset/2 pt);%
+ \fi
+ \fi
+ \fi
+ \repeat
+ \box\CF@lewis@box
+ \endgroup
+}
+
+\CF@def\chembelow{\CF@save@catcode\CF@sanitize@catcode\@testopt\CF@chembelow{1.5pt}}
+
+\CF@def\CF@chembelow[#1]#2#3{%
+ \setbox\CF@box@boxa\hbox{\printatom{#2}}\setbox\CF@box@boxb\hbox{\printatom{#3}}%
+ \vtop{%
+ \hbox{\printatom{#2}}%
+ \hrule width0pt depth0pt height#1\relax
+ \hbox{%
+ \hskip\dimexpr(\wd\CF@box@boxa-\wd\CF@box@boxb)/\tw@
+ \printatom{#3}%
+ \hskip\dimexpr(\wd\CF@box@boxa-\wd\CF@box@boxb)/\tw@
+ }%
+ \vskip-\dimexpr\ht\CF@box@boxb+\dp\CF@box@boxb+#1\relax
+ }%
+ \CF@restore@catcode
+}
+
+\CF@def\chemabove{\CF@save@catcode\CF@sanitize@catcode\@testopt\CF@chemabove{1.5pt}}
+
+\CF@def\CF@chemabove[#1]#2#3{%
+ \setbox\CF@box@boxa\hbox{\printatom{#2}}\setbox\CF@box@boxb\hbox{\printatom{#3}}%
+ \vtop{%
+ \hbox{\printatom{#2}}%
+ \hrule width0pt depth0pt height-\dimexpr#1+\ht\CF@box@boxa+\ht\CF@box@boxb+\dp\CF@box@boxb\relax
+ \hbox{%
+ \hskip\dimexpr(\wd\CF@box@boxa-\wd\CF@box@boxb)/\tw@
+ \printatom{#3}%
+ \hskip\dimexpr(\wd\CF@box@boxa-\wd\CF@box@boxb)/\tw@
+ }%
+ }%
+ \CF@restore@catcode
+}
+
+%%%%%% les signes et les fl\`eches
+\CF@def\chemsign{\@testopt\CF@chemsign{0.5em}}
+
+\CF@def\CF@chemsign[#1]#2{\hbox{\kern#1\relax#2\kern#1}}
+
+\CF@def\setchemrel#1#2#3{%
+ \ifx\@empty#1\@empty\def\CF@chemrel@vsep{2pt}\else\def\CF@chemrel@vsep{#1}\fi
+ \ifx\@empty#2\@empty\def\CF@chemrel@hsep{0.7em}\else\def\CF@chemrel@hsep{#2}\fi
+ \ifx\@empty#3\@empty\def\CF@chemrel@length{4em}\else\def\CF@chemrel@length{#3}\fi
+}
+
+\setchemrel{}{}{}
+
+\CF@def\chemrel{\CF@save@catcode\CF@sanitize@catcode\@testopt\CF@chemchemrel@i{}}
+
+\CF@def\CF@chemchemrel@i[#1]{\@testopt{\CF@chemchemrel@ii[#1]}{}}
+
+\CF@def\CF@chemchemrel@ii[#1][#2]#3{%
+ \def\CF@chemrel@stuff
+ {\leavevmode\kern\CF@chemrel@hsep
+ \tikzpicture[every node/.style={anchor=base,inner sep=0pt,outer sep=0pt,minimum size=0pt},baseline]%
+ \CF@if@instr{#3}{<>}%
+ {\node[yshift=-1pt] at(0,0)(chemrel@start){\vphantom I};\node[yshift=-1pt] at(\CF@chemrel@length,0)(chemrel@end){\vphantom I};%
+ \expandafter\draw\expandafter[\CF@remove@equichars#3,\@nil-](chemrel@end)--(chemrel@start);\fill (chemrel@start)--++(4pt,-1.75pt)--+(-1.5pt,1.75pt)--cycle;%
+ \node[yshift=1pt] at(0,0)(chemrel@start){\vphantom I};\node[yshift=1pt] at(\CF@chemrel@length,0)(chemrel@end){\vphantom I};%
+ \expandafter\draw\expandafter[\CF@remove@equichars#3,\@nil-](chemrel@start)--(chemrel@end);\fill(chemrel@end)--++(-4pt,1.75pt)--+(1.5pt,-1.75pt)--cycle;
+ }%
+ {\node at(0,0)(chemrel@start){\vphantom I};\node at(\CF@chemrel@length,0)(chemrel@end){\vphantom I};%
+ \draw[#3](chemrel@start)--(chemrel@end);%
+ }%
+ \endtikzpicture
+ \kern\CF@chemrel@hsep
+ }%
+ \ifx\@empty#1\@empty
+ \ifx\@empty#2\@empty\CF@chemrel@stuff
+ \else\chembelow[\CF@chemrel@vsep]\CF@chemrel@stuff{\hbox{#2}}%
+ \fi
+ \else
+ \ifx\@empty#2\@empty\chemabove[\CF@chemrel@vsep]\CF@chemrel@stuff{\hbox{#1}}%
+ \else\chemabove[\CF@chemrel@vsep]{\chembelow[\CF@chemrel@vsep]\CF@chemrel@stuff{\hbox{#2}}}{\hbox{#1}}%
+ \fi
+ \fi
+ \CF@restore@catcode
+}
+
+\CF@def\CF@remove@equichars#1<>#2\@nil{#1#2}
+
+\CF@def\chemmove{\CF@save@catcode\CF@sanitize@catcode\@testopt\CF@chemmove{}}
+
+\CF@def\CF@chemmove[#1]#2{%
+ \ifx\@empty#2\@empty
+ \expandafter\@gobble
+ \else
+ \expandafter\@firstofone
+ \fi
+ {\expandafter\tikzpicture\romannumeral\ifx\@empty#1\@empty\expandafter\@firstoftwo\else\expandafter\@secondoftwo\fi
+ {\z@[remember picture,overlay]}{\z@[remember picture,overlay,#1]}#2
+ \endtikzpicture
+ }%
+ \CF@restore@catcode
+}
+
+\CF@def\chemnameinit#1{%
+ \CF@save@catcode\CF@sanitize@catcode
+ \setbox\CF@stuff@box\hbox{#1}%
+ \edef\CF@dp@max{\the\dp\CF@stuff@box}%
+ \CF@restore@catcode
+}
+\chemnameinit{}
+
+\CF@def\CF@parse@molname#1\\#2\@nil{%
+ \hbox to\CF@wd@stuffbox{\hss#1\hss}%
+ \ifx\@empty#2\@empty
+ \else
+ \CF@swap@fi
+ \CF@parse@molname#2\@nil
+ \fi
+}
+
+\CF@def\chemname{\CF@save@catcode\CF@sanitize@catcode\@testopt\CF@chemname{1.5ex}}
+
+\CF@def\CF@chemname[#1]#2#3{%
+ \setbox\CF@stuff@box\hbox{#2}%
+ \edef\CF@wd@stuffbox{\the\wd\CF@stuff@box}\edef\CF@dp@stuffbox{\the\dp\CF@stuff@box}%
+ \leavevmode
+ \ifdim\CF@dp@max<\CF@dp@stuffbox\let\CF@dp@max\CF@dp@stuffbox\fi
+ \vtop{%
+ \box\CF@stuff@box
+ \nointerlineskip
+ \kern\dimexpr#1+\CF@dp@max-\CF@dp@stuffbox\relax
+ \CF@parse@molname#3\\\@nil
+ }%
+ \CF@restore@catcode
+}
+
+\CF@savedcatcode
+
+\endinput
+
+######################################################################
+# Historique #
+######################################################################
+
+v0.1 2010/06/23
+ - Premi\`ere version publique sur le CTAN
+----------------------------------------------------------------------
+v0.2 2010/08/31
+ - Ajout de la documentation en anglais.
+ - Correction de bugs.
+ - \printatom est d\'esormais une macro publique.
+ - Les espaces sont permis dans les mol\'ecules. Ils seront
+ ignor\'es par d\'efaut puisque les atomes sont compos\'es en
+ mode math par \printatom
+ - Une paire de Lewis peut être repr\'esent\'ee ":".
+ - Dans les cycles, une correction de la longueur du trait
+ d\'eport\'e des liaisons doubles est fait de telle sorte que si
+ l'on \'ecrit \chemfig{*5(=====)}, on obtient deux polygones
+ r\'eguliers concentriques.
+ - La s\'equence de contr\^ole \setnodestyle permet de sp\'ecifier
+ le style des nœuds dessin\'es par tikz.
+----------------------------------------------------------------------
+v0.3 2010/11/21
+ - Am\'elioration de \definesubmol qui accepte les s\'equences de
+ contr\^ole. On peut aussi choisir un alias dont la substitution
+ est diff\'erente selon l'orientation de la liaison qui lui
+ arrive dessus.
+ - Le caract\`ere "|" force la fin d'un atome. Si on \'ecrit
+ "D|ef" alors, chemfig verra deux atomes "D" et "ef".
+ - Le caract\`ere "#" est reconnu lorsqu'il suit un caract\`ere de
+ liaison. Il doit être suivi d'un argument entre parenth\`eses
+ qui contient l'offset de d\'ebut et de fin qui s'appliqueront
+ \`a cette liaison.
+ - La macro \chemfig admet un argument optionnel qui sera pass\'e
+ \`a l'environnement tikzpicture dans lequel elle est dessin\'ee
+ - Mise en place de la repr\'esentation des m\'ecanismes
+ r\'eactionnels avec la synatxe "@{<nom>}" devant un atome o\`u
+ "@{<nom>,<coeff>}" au tout d\'ebut de l'argument d'une liaison.
+ Cette syntaxe permet de placer un nœud (au sens de tikz) qui
+ deviendra l'extr\'emit\'e des fl\`eches des m\'ecanismes.
+ Le trac\'e des fl\`eches est faite par la macro \chemmove dont
+ l'argument optionnel devient celui de l'environnement
+ tikspicture dans lequel sont faites les fl\`eches.
+ - Pour le m\'ecanisme d'alignement vertical via le \vphantom, la
+ commande \chemskipalign permet d'ignorer le groupe d'atomes
+ dans lequel elle est \'ecrite.
+ - La commande \chemname permet d'afficher un nom sous une
+ mol\'ecule. la commande \chemnameinit initialise la plus grande
+ profondeur rencontr\'ee.
+ - La commande \lewis a \'et\'e modifi\'ee de telle sorte que les
+ dessins des d\'ecorations soient proportionnels \`a la taille
+ de la police.
+----------------------------------------------------------------------
+v0.3a 2011/01/08
+ - Correction d'un bug dans l'argument optionnel de \definesubmol
+ lorsque celui-ci comporte des crochets.
+ - Mise \`a jour du manuel en anglais.
+ - Ajout de \vflipnext et \hflipnext pour retourner
+ horizontalement ou verticalement la prochaine mol\'ecule.
+----------------------------------------------------------------------
+v0.4 2011/03/07
+ - chemfig est d\'esormais \'ecrit en plain-etex et donc
+ utilisable par d'autres formats que LaTeX.
+ - Un peu plus de rigueur avec les catcodes des caract\`eres
+ sp\'eciaux, notamment lorsque la commande \chemfig se trouve
+ dans l'argument de \chemmove, \chemabove, \chembelow, \chemrel.
+ TODO : faut-il \scantoker l'argument de \chemfig pour \^etre
+ d\'efinitivement d\'ebarass\'e de ces histoires de catcode ???
+ - Correction d'un bug dans le calcul de l'angle des liaisons \ No newline at end of file
diff --git a/Master/texmf-dist/tex/generic/chemfig/t-chemfig.tex b/Master/texmf-dist/tex/generic/chemfig/t-chemfig.tex
new file mode 100644
index 00000000000..73b20b64dd9
--- /dev/null
+++ b/Master/texmf-dist/tex/generic/chemfig/t-chemfig.tex
@@ -0,0 +1,48 @@
+% __________________________________________________________________
+% | |
+% | |
+% | chemfig v0.4 |
+% | |
+% | March 7, 2011 |
+% | |
+% |__________________________________________________________________|
+%
+% This is t-chemfig.tex, the package file for conTeXt.
+%
+% Maintainer: Christian Tellechea
+% E-mail : unbonpetit@gmail.com
+% Comments, bug reports and suggestions are welcome.
+% Licence : Released under the LaTeX Project Public License v1.3c or
+% later, see http://www.latex-project.org/lppl.txt
+% Copyright : Christian Tellechea 2010-2011
+%
+% The "chemfig" package consists of the 8 following files:
+% chemfig.tex (the code of the package)
+% chemfig.sty (the package file for LaTeX)
+% t-chemfig.tex (this file)
+% README
+% chemfig_doc_en.tex, chemfig_doc_en.pdf (english manual)
+% chemfig_doc_fr.tex, chemfig_doc_fr.pdf (manual in french)
+%
+% --------------------------------------------------------------------
+% This work 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 work has the LPPL maintenance status `maintained'.
+%
+% The Current Maintainer of this work is Christian Tellechea
+% --------------------------------------------------------------------
+\ifdefined\tikzpicture
+\else
+ \expandafter\def\csname CF@next@action\endcsname{\usemodule[tikz]}%
+ \csname CF@next@action\expandafter\endcsname
+\fi
+\input chemfig.tex
+\endinput \ No newline at end of file
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-27 03:02:48 +0000