Merge branch 'chemical' into 225-ebook-situation

All credits due to @michal-h21
https://github.com/michal-h21/tex4ebook/issues/137

book/book.tex

@@ -12,7 +12,6 @@
 \input{cover/cover.tex}
 \titlepage
 
-\frontmatter
 {%
 \hypersetup{hidelinks}
 \ifdefined\HCode\else\tableofcontents\fi
@@ -21,43 +20,89 @@
 \input{intro/preface}
 \input{intro/acknowledgments}
 
-\mainmatter
+\begin{flowchart}[!htb]
+\begin{center}
+  \input{figures/fig-dutch-oven-process.tex}
+  \caption[Baking process with a dutch oven]{A visualization of the baking
+      process using a dutch oven (DO). The dough is steamed for the first half
+      of the bake and then baked without cover for the second half of the
+      bake. The desired darkness and thickness of the crust depends on your
+      personal preference. Some bakers prefer a lighter crust and others a
+      darker.}%
+  \label{fig:dutch-oven-process}
+\end{center}
+\end{flowchart}
 
-\input{history/sourdough-history}
+At around  \qty{60}{\degreeCelsius} (\qty{140}{\degF}) the microbes in your
+dough start to die.  There are rumors that until this happens the microbes
+produce a lot of \ch{CO2}.
 
-\input{basics/how-sourdough-works}
+% Does not work
+\begin{figure}[!htb]
+\begin{center}
+  \input{figures/fig-ethanol-oxidation.tex}
+  \caption[Acetic acid creation]{Oxygen is required to create acetic
+      acid~\cite{acetic+acid+production}.}%
+  \label{fig:ethanol-oxidation}
+\end{center}
+\end{figure}
 
-\input{sourdough-starter/sourdough-starter}
+%% Works
+%% Generate first with: cd figures && pdflatex fig-ethanol-oxidation-external.tex
+%\begin{figure}[!htb]
+%  \begin{center}
+%    \includegraphics{figures/fig-ethanol-oxidation-external.png}
+%    \caption[Acetic acid creation]{Oxygen is required to create acetic
+%        acid~\cite{acetic+acid+production}.}%
+%  \end{center}
+%\end{figure}
+%
+%% Does not work
+%\begin{figure}[!htb]
+%\begin{center}
+%  \input{figures/fig-life-planet-sourdough-timeline.tex}
+%  \caption[Sourdough microbiology timeline]{Timeline giberrish on website}%
+%\end{center}
+%\end{figure}
+%
+%% Works
+%% Generate first with: cd figures && pdflatex fig-life-planet-sourdough-timeline-external.pdf
+%\begin{figure}[!htb]
+%  \includegraphics{figures/fig-life-planet-sourdough-timeline-external.png}
+%  \caption[Sourdough microbiology timeline]{Timeline works embedded as png}%
+%\end{figure}
+%
+%\begin{figure}[!htb]
+%  \includegraphics[width=\textwidth]{baking-experiment-temperatures.png}
+%  \caption[Surface temperature for different steaming methods]{png file}
+%\end{figure}
 
-\input{sourdough-starter/sourdough-starter-types}
+\begin{figure}[!htb]
+  \includegraphics[width=\textwidth]{baking-process-steam.jpg}
+  \caption[Steam building with inverted tray]{jpg file}%
+      \label{flc:inverted-tray}
+\end{figure}
+If you're a hobby brewer, you'll know that it's important to keep your beer at
+certain temperatures to allow the different amylases to convert the contained
+starches into sugar~\cite{beer+amylase}.
+This test, called the \emph{Iodine Starch Test}, involves mixing iodine into
+a sample of your brew and checking the color.
 
-\input{flour-types/flour-types}
+% https://github.com/hendricius/the-sourdough-framework/issues/358
+\begin{table}[!htb]
+    \begin{center}
+        \input{tables/table-starter-usage-activity.tex}
+        \caption[Different oven types]{An overview of different oven types and
+        eheir different baking methods.}
+    \end{center}
+\end{table}
 
-\input{bread-types/bread-types}
-
-\chapter{Wheat sourdough}%
-\label{chapter:wheat-sourdough}
-\input{wheat-sourdough/wheat-sourdough}
-
-\input{non-wheat-sourdough/non-wheat-sourdough}
-
-\input{mix-ins/mix-ins.tex}
-
-\input{baking/baking}
-
-\input{storing-bread/storing-bread}
-
-\chapter{Troubleshooting}
-\input{troubleshooting/misc}
-
-\backmatter
-\input{glossary/glossary}
-{%
-\hypersetup{hidelinks}
-\listofflowcharts
-\listoftables
-\listoffigures
-}
-\printbibliography
+\begin{table}[!htb]
+    \begin{center}
+        \input{tables/table-oven-baking-overview.tex}
+        \caption[Different oven types]{An overview of different oven types and their
+            different baking methods.}
+    \end{center}
+\end{table}
 
 \end{document}

book/figures/export_figures.sh

@@ -10,6 +10,7 @@ if [ "$#" -ne 1 ]; then
     done
 else
     target=figures/`basename $1 .png.pdf`.png
+    echo ${target}
     echo "Converting: " $1 " to: " ${target}
     convert -density 900 -trim $1 -quality 100 ${target}
 fi

book/figures/fig-dutch-oven-process.tex

@@ -1,32 +1,8 @@
 \begin{tikzpicture}[node distance = 3cm, auto]
   \node [start] (heat_oven) {Preheat DO to \qty{230}{\degreeCelsius} (\qty{446}{\degF}) for 30~minutes};
-  \node [block, right of=heat_oven] (remove_oven) {Remove DO from oven };
-  \node [block, right of=remove_oven] (open_load_dough) {Open DO \& load your dough};
-  \node [block, right of=open_load_dough] (score) {Score your dough};
-  \node [block, right of=score] (spritz) {Spritz dough with water};
-  \node [block, below of=spritz] (close) {Close DO};
-  \node [block, left of=close] (back_oven) {Place DO back in oven};
-  \node [block, left of=back_oven] (bake) {Bake 30~minutes at \qty{230}{\degreeCelsius} (\qty{446}{\degF})};
-  \node [decision, below right= 5cm and -1 cm of heat_oven]  (is_ready_check)
-        {Core temperature \qty{92}{\degreeCelsius} (\qty{197}{\degF})?};
-  \node [block, below of=is_ready_check, node distance=4cm] (wait_5_minutes) {Wait\\ 5 minutes};
-  \node [block, right of=is_ready_check, node distance=4cm] (remove_do_lid) {Remove DO lid};
-  \node [decision, right of=remove_do_lid, node distance=3.5cm] (dark_enough_decision) {Crust color dark enough?};
-  \node [success, below of=dark_enough_decision, node distance=4cm] (finish_baking) {Bread is finished};
-  \node [block, right of=dark_enough_decision, node distance=3.5cm] (bake_5_more_minutes) {Bake another 5~minutes};
-  \path [line] (heat_oven) -- (remove_oven);
-  \path [line] (remove_oven) -- (open_load_dough);
-  \path [line] (open_load_dough) -- (score);
-  \path [line] (score) -- (spritz);
-  \path [line] (spritz) -- (close);
-  \path [line] (close) -- (back_oven);
-  \path [line] (back_oven) -- (bake);
-  \path [line] (bake.west) -- node{} ++(-2, 0) -| (is_ready_check.north);
-  \path [line] (is_ready_check) -- node{Yes} (remove_do_lid);
-  \path [line] (is_ready_check) -- node{No} (wait_5_minutes);
-  \path [line] (wait_5_minutes.west) -- node{} ++(-1.5, 0) |- (is_ready_check.west);
-  \path [line] (remove_do_lid) -- (dark_enough_decision);
-  \path [line] (dark_enough_decision) -- node{Yes} (finish_baking);
-  \path [line] (dark_enough_decision) -- node{No} (bake_5_more_minutes);
-  \path [line] (bake_5_more_minutes.east) -- node{} ++(1, 0) -- node{} ++(0, 2.3) -| (dark_enough_decision.north);
+  \node [block, right of=heat_oven] (remove_oven) {Remove DO from oven ° \text{°}  \textup{°}};
+  \node [decision, below of=heat_oven, node distance=4cm] (is_ready_check) {Core temperature \qty{92}{\degreeCelsius} (\qty{197}{\degF})?};
+  \node [block, right of=is_ready_check, node distance=4cm] (remove_do_lid) {%
+Jörg bäckt quasi zwei Haxenfüße vom Wildpony .Dès Noël, où un zéphyr haï me
+vêt};
 \end{tikzpicture}

book/pgfsys-dvisvgm4ht.def

@@ -0,0 +1,75 @@
+% Copyright 2021-2024 by Michal Hoftich
+% Copyright 2006 by Till Tantau
+%
+% This file may be distributed and/or modified
+%
+% 1. under the LaTeX Project Public License and/or
+% 2. under the GNU Public License.
+%
+% See the file doc/generic/pgf/licenses/LICENSE for more details.
+
+\ProvidesFileRCS{pgfsys-dvisvgm4ht.def}
+
+% Driver commands for tex4ht
+
+%
+% Load common pdf commands:
+%
+
+% we switched to dvisvgm driver by default. it supports patterns and other features 
+% dvips driver is available through the tikz+ option. It doesn't support everything, 
+% but it worked better with nested pictures in the past.
+\ifdefined\ifOption
+\ifOption{tikz+}{\input pgfsys-dvips.def}{\input pgfsys-dvisvgm.def}
+\else
+% load the dvips driver by default
+\input pgfsys-dvisvgm.def
+\fi
+
+
+\catcode`\:=11%
+
+% we must call most of these redefinitions in \AtBeginDocument, because \HLet is available 
+% only at that moment
+\AtBeginDocument{%
+ % configure the output picture format to svg, as it will require dvisvgm
+ % post processing. 
+ \Configure{Picture}{.svg}%
+
+ % insert picture hooks to pgfsys commands 
+ % these redefinitions are usually called only with the \tikz command, 
+ % they are ignored in tikzpicture environment
+ \def\:tempa#1{%
+     \texfourht@tikz@begin%
+     \csname o:pgfsys@typesetpicturebox:\endcsname{#1}
+     \texfourht@tikz@end%
+ }
+ \HLet\pgfsys@typesetpicturebox\:tempa
+
+ % we must remove Picture-alt in \pgfsys@beginpicture, because it can result in alt text included in the image
+ \def\:tempa{\Configure{Picture-alt}{}\texfourht@tikz@begin\o:pgfsys@beginpicture:}
+ \HLet\pgfsys@beginpicture\:tempa
+ \let\o:pgfsys@endpicture:\pgfsys@endpicture
+ \def\:tempa{\o:pgfsys@endpicture:}
+ \HLet\pgfsys@endpicture\:tempa
+
+ %  start picture around TikZ and PGF environments
+ \ConfigureEnv{tikzpicture}{\begingroup\texfourht@tikz@begin}{\texfourht@tikz@end\endgroup}{}{}%
+ \ConfigureEnv{pgfpicture}{\begingroup\texfourht@tikz@begin}{\texfourht@tikz@end\endgroup}{}{}%
+}
+
+\def\texfourht@tikz@begin{
+  \protect\csname nested:math\endcsname% support display math
+  \Picture*[\csname a:Picture-alt\endcsname]{}%
+}
+\def\texfourht@tikz@end{\EndPicture}
+
+\catcode`\:=12%
+
+
+\endinput
+
+
+%%% Local Variables:
+%%% mode: latex
+%%% End:

book/tex4ebook.cfg

@@ -19,4 +19,18 @@
     font-family: 'Open Sans';
   }
 </style>}}
+
+% Deal with chemical equations in a single svg
+\ExplSyntaxOn
+\def\standaloneenv#1{}
+\pend:def\schemestart{\Picture+{}}
+\append:def\CF_schemestop{\EndPicture}
+\ExplSyntaxOff
+\makeatletter
+\def\texfourht@tikz@begin{
+  \protect\csname nested:math\endcsname% support display math
+  \Picture+[\csname a:Picture-alt\endcsname]{}%
+}
+\makeatother
+
 \EndPreamble

book/website.cfg

@@ -47,5 +47,17 @@
 }
 \ConfigureToc{loc}{\HCode{<span class="lofToc">}}{\ }{}{\HCode{</span><br />}}
 
+\ExplSyntaxOn
+\def\standaloneenv#1{}
+\pend:def\schemestart{\Picture+{}}
+\append:def\CF_schemestop{\EndPicture}
+\ExplSyntaxOff
+\makeatletter
+\def\texfourht@tikz@begin{
+  \protect\csname nested:math\endcsname% support display math
+  \Picture+[\csname a:Picture-alt\endcsname]{}%
+}
+\makeatother
+
 \begin{document}
 \EndPreamble