sphinx.sty

%
% sphinx.sty
%
% Adapted from the old python.sty, mostly written by Fred Drake,
% by Georg Brandl.
%

\NeedsTeXFormat{LaTeX2e}[1995/12/01]
\ProvidesPackage{sphinx}[2023/03/07 v6.2.0 LaTeX package (Sphinx markup)]

% provides \ltx@ifundefined
% (many packages load ltxcmds: graphicx does for pdftex and lualatex but
% not xelatex, and anyhow kvoptions does, but it may be needed in future to
% use \sphinxdeprecationwarning earlier, and it needs \ltx@ifundefined)
\RequirePackage{ltxcmds}

%% for deprecation warnings
\newcommand\sphinxdeprecationwarning[4]{% #1 the deprecated macro or name,
% #2 = when deprecated, #3 = when removed, #4 = additional info
  {% limit scope of \spx@tempa, \AtEndDocument works even if nested.
  \edef\spx@tempa{\detokenize{#1}}%
  \ltx@ifundefined{sphinx_depr_\spx@tempa}{%
     \global\expandafter\let\csname sphinx_depr_\spx@tempa\endcsname\spx@tempa
     \expandafter\AtEndDocument\expandafter{\expandafter\let\expandafter
         \sphinxdeprecatedmacro\csname sphinx_depr_\spx@tempa\endcsname
         \PackageWarningNoLine{sphinx}{^^J**** SPHINX DEPRECATION WARNING:^^J
         \sphinxdeprecatedmacro^^J
         \@spaces- is deprecated at Sphinx #2^^J
         \@spaces- and removed at Sphinx #3.^^J
         #4^^J****}}%
  }{% warning already emitted (at end of latex log), don't repeat
   }%
  }% end of scope limiting group for \spx@tempa
}
%% important build warnings use an undefined reference to induce latexmk
%% into complaining (once per warning) at very end of console output
\newcommand\sphinxbuildwarning[1]{%
  \ifcsname sphinx_emitted_#1\endcsname
  \else
    \global\expandafter\let\csname sphinx_emitted_#1\endcsname\@empty
    \AtEndDocument{\hbox{% should the printing of text be made conditional on
                         % some boolean?
                         \bfseries\color{red}%
                         \@nameuse{sphinx_buildwarning_#1}%
                         % place an undefined reference deliberately
                         \let\nfss@text\@gobble % no ??
                         \ref{!!\@nameuse{sphinx_buildwarning_#1}}%
                         }}%
  \fi
}
\@namedef{sphinx_buildwarning_coloursyntax}{%
   The colours whose definition used xcolor syntax were set to white
   as xcolor was not found; check the latex log warnings for details}
\@namedef{sphinx_buildwarning_colorblend}{%
   Command \string\sphinxcolorblend\space seen but ignored in tables
   as xcolor was not found; check the latex log warnings for details}
\@namedef{sphinx_buildwarning_nopict2e}{%
   Some radii options for box corners used; they were ignored as pict2e
   was not found}
\@namedef{sphinx_buildwarning_badtitlesec}{%
   Your system has titlesec version 2.10.1 which causes disappearance
   of section numbers; check the latex log warning for details}
\@namedef{sphinx_buildwarning_booktabs}{%
   Some tables with booktabs class (check latex log) but booktabs
   package not loaded; add its loading to the latex preamble}%
\@namedef{sphinx_buildwarning_badfootnotes}{%
   Footnote rendering may have had problems, due to extra package or
   document class; check latex log for instructions}%


%% OPTION HANDLING
%

% We generally first handle options then load packages, but we need
% \definecolor from xcolor/color to handle the options.

% MEMO: xcolor \fcolorbox coloured boxes render better in some PDF viewers
% than with color package \fcolorbox.  Since 1.6.3, Sphinx uses only its own
% custom variant of \fcolorbox when handling verbatim code.  Currently (last
% checked at 5.0.0) \fcolorbox is used for admonitions (sphinxheavybox)
% and appears also in Pygmentize output mark-up.
\IfFileExists{xcolor.sty}{
    \RequirePackage{xcolor}
}{
    \RequirePackage{color}
}

% the \colorlet of xcolor (if at all loaded) is overkill for our internal use
\newcommand{\sphinxcolorlet}[2]
    {\expandafter\let\csname\@backslashchar color@#1\expandafter\endcsname
                     \csname\@backslashchar color@#2\endcsname }

% (5.3.0) allow colour options to use both the \definecolor and the \colorlet
% syntaxes, for example VerbatimColor={gray}{0.9} or VerbatimColor=red!10
% In the latter case we need the real \colorlet from xcolor package.
\def\spx@defineorletcolor#1{%
    \def\spx@definedcolor{{#1}}%
    \futurelet\spx@token\spx@defineorlet}
\def\spx@defineorlet{%
    \ifx\spx@token\bgroup
    \expandafter\spx@definecolor\else\expandafter\spx@colorlet\fi}
\def\spx@colorlet#1\relax{\expandafter\colorlet\spx@definedcolor{#1}}
\def\spx@definecolor{\expandafter\definecolor\spx@definedcolor}
%
\@ifpackageloaded{xcolor}%
   {}%
   {% xcolor not loaded because it was not found in the LaTeX installation
\def\spx@colorlet#1\relax{%
    \sphinxbuildwarning{coloursyntax}%
    \PackageWarning{sphinx}{%
Sorry, the #1 syntax requires package xcolor,\MessageBreak
which was not found on your TeX/LaTeX installation.\MessageBreak
\@spaces\expandafter\@firstofone\spx@definedcolor\MessageBreak
will be set to white}%
    \expandafter\definecolor\spx@definedcolor{rgb}{1,1,1}%
    }% end of redefinition of \spx@colorlet
   }% end of xcolor not found branch


% Handle options via "kvoptions" (later loaded by hyperref anyhow)
\RequirePackage{kvoptions}
\SetupKeyvalOptions{prefix=spx@opt@} % use \spx@opt@ prefix

% Optional usage of booktabs package for tables
\DeclareBoolOption[false]{booktabs}
\DeclareBoolOption[false]{borderless}
\DeclareBoolOption[true]{booktabscolorgaps}
\DeclareVoidOption{booktabsnogaps}{%
  \ifx\@nodocument\relax
  % in body
    \expandafter\@firstofone
  \else
  % in preamble, wait for at begin document
    \expandafter\AtBeginDocument
  \fi
  {\ifdefined\abovetopsep % silently do nothing if booktabs not loaded
      \abovetopsep\z@\belowrulesep\z@\aboverulesep\z@\belowbottomsep\z@
   \fi
  }%
}
% Coloured table rows
\DeclareBoolOption[false]{colorrows}
% Sphinx legacy text layout: 1in margins on all four sides
\ifx\@jsc@uplatextrue\@undefined
\DeclareStringOption[1in]{hmargin}
\DeclareStringOption[1in]{vmargin}
\DeclareStringOption[.5in]{marginpar}
\else
% Japanese standard document classes handle \mag in a special way
\DeclareStringOption[\inv@mag in]{hmargin}
\DeclareStringOption[\inv@mag in]{vmargin}
\DeclareStringOption[.5\dimexpr\inv@mag in\relax]{marginpar}
\fi

\DeclareStringOption[0]{maxlistdepth}% \newcommand*\spx@opt@maxlistdepth{0}
\DeclareStringOption[-1]{numfigreset}
\DeclareBoolOption[false]{nonumfigreset}
\DeclareBoolOption[false]{mathnumfig}
\define@key{sphinx}{bookmarksdepth}{\AtBeginDocument{\hypersetup{bookmarksdepth=#1}}}
\AtBeginDocument{\define@key{sphinx}{bookmarksdepth}{\hypersetup{bookmarksdepth=#1}}}
% \DeclareBoolOption[false]{usespart}% not used
% INFO: the keys for padding and border widths were extended at 5.1.0,
% and legacy names for user interface were kept, but their definitions
% are delayed further down.  The legacy dimen registers used internally
% \sphinxverbatimborder and \sphinxverbatimsep got removed at 6.2.0.
\DeclareBoolOption[true]{verbatimwithframe}
\DeclareBoolOption[true]{verbatimwrapslines}
\DeclareBoolOption[false]{verbatimforcewraps}
\DeclareStringOption[3]{verbatimmaxoverfull}
\DeclareStringOption[100]{verbatimmaxunderfull}
\DeclareBoolOption[true]{verbatimhintsturnover}
\DeclareBoolOption[true]{inlineliteralwraps}
\DeclareStringOption[t]{literalblockcappos}
\DeclareStringOption[r]{verbatimcontinuedalign}
\DeclareStringOption[r]{verbatimcontinuesalign}
% parsed literal
\DeclareBoolOption[true]{parsedliteralwraps}
% \textvisiblespace for compatibility with fontspec+XeTeX/LuaTeX
\DeclareStringOption[\textcolor{red}{\textvisiblespace}]{verbatimvisiblespace}
\DeclareStringOption % must use braces to hide the brackets
  [{\makebox[2\fontcharwd\font`\x][r]{\textcolor{red}{\tiny$\m@th\hookrightarrow$}}}]%
  {verbatimcontinued}
% topic boxes
% 5.1.0 added new keys for configuration.  The legacy keys shadowsep,
% shadowsize, shadowrule are kept for backwards compatibility.  See further
% down for definitions.  Unfortunately this had bugs due to typos, which got
% fixed later at 6.1.2.  The \sphinxshadowsep, \sphinxshadowsize,
% \sphinxshadowrule \dimen registers became at 5.1.0 either no-op or, for the
% latter, were used under an aliased name.  They got removed at 6.2.0.
%
% notices/admonitions
% the dimensions for notices/admonitions are kept as macros and assigned to
% \spx@notice@border at time of use, hence \DeclareStringOption is ok for this
\newdimen\spx@notice@border
\DeclareStringOption[0.5pt]{noteborder}
\DeclareStringOption[0.5pt]{hintborder}
\DeclareStringOption[0.5pt]{importantborder}
\DeclareStringOption[0.5pt]{tipborder}
% Compatibility layer to share for these notice types common code
% with the one for warning, danger, ..., in sphinxlatexadmonitions.sty
\def\spx@note@border     {\spx@opt@noteborder}
\def\spx@hint@border     {\spx@opt@hintborder}
\def\spx@important@border{\spx@opt@importantborder}
\def\spx@tip@border      {\spx@opt@tipborder}
% The warning type notices are handled in the "CSS" section below.
% 6.2.0 does not define \spx@opt@warningborder etc... macros
% but only \spx@warning@border etc...
% footnotes
\DeclareStringOption[\mbox{ }]{AtStartFootnote}
% we need a public macro name for direct use in latex file
\newcommand*{\sphinxAtStartFootnote}{\spx@opt@AtStartFootnote}
% no such need for this one, as it is used inside other macros
\DeclareStringOption[\leavevmode\unskip]{BeforeFootnote}
% some font styling.
\DeclareStringOption[\sffamily\bfseries]{HeaderFamily}
% colours
% same problems as for dimensions: we want the key handler to use \definecolor.
% first, some colours with no prefix, for backwards compatibility
\newcommand*{\sphinxDeclareColorOption}[2]{%
   % set the initial default; only \definecolor syntax for defaults!
   \definecolor{#1}#2%
   % set the key handler to accept both \definecolor and \colorlet syntax
   \define@key{sphinx}{#1}{\spx@defineorletcolor{#1}##1\relax}%
}%
\sphinxDeclareColorOption{TitleColor}{{rgb}{0.126,0.263,0.361}}
\sphinxDeclareColorOption{InnerLinkColor}{{rgb}{0.208,0.374,0.486}}
\sphinxDeclareColorOption{OuterLinkColor}{{rgb}{0.216,0.439,0.388}}
\sphinxDeclareColorOption{VerbatimColor}{{gray}{0.95}}
\sphinxDeclareColorOption{VerbatimBorderColor}{{RGB}{32,32,32}}
% all other colours will be named with a "sphinx" prefix
\newcommand*{\sphinxDeclareSphinxColorOption}[2]{%
   % set the initial default; only \definecolor syntax for defaults!
   \definecolor{sphinx#1}#2%
   % set the key handler to accept both \definecolor and \colorlet syntax
   \define@key{sphinx}{#1}{\spx@defineorletcolor{sphinx#1}##1\relax}%
}%
% table row colors
\sphinxDeclareSphinxColorOption{TableRowColorHeader}{{gray}{0.86}}
\sphinxDeclareSphinxColorOption{TableRowColorOdd}{{gray}{0.92}}
\sphinxDeclareSphinxColorOption{TableRowColorEven}{{gray}{0.98}}
% if not set, the "Merge" colour will keep in sync with the "Row" colour
\def\sphinxTableMergeColorHeader{sphinxTableRowColorHeader}
\define@key{sphinx}{TableMergeColorHeader}{%
    \spx@defineorletcolor{sphinxTableMergeColorHeader}#1\relax
    \def\sphinxTableMergeColorHeader{sphinxTableMergeColorHeader}%
}%
\def\sphinxTableMergeColorOdd{sphinxTableRowColorOdd}
\define@key{sphinx}{TableMergeColorOdd}{%
    \spx@defineorletcolor{sphinxTableMergeColorOdd}#1\relax
    \def\sphinxTableMergeColorOdd{sphinxTableMergeColorOdd}%
}%
\def\sphinxTableMergeColorEven{sphinxTableRowColorEven}
\define@key{sphinx}{TableMergeColorEven}{%
    \spx@defineorletcolor{sphinxTableMergeColorEven}#1\relax
    \def\sphinxTableMergeColorEven{sphinxTableMergeColorEven}%
}%
% Default color chosen to be as in minted.sty LaTeX package!
\sphinxDeclareSphinxColorOption{VerbatimHighlightColor}{{rgb}{0.878,1,1}}
% admonition boxes, "light" style
\sphinxDeclareSphinxColorOption{noteBorderColor}{{rgb}{0,0,0}}
\sphinxDeclareSphinxColorOption{hintBorderColor}{{rgb}{0,0,0}}
\sphinxDeclareSphinxColorOption{importantBorderColor}{{rgb}{0,0,0}}
\sphinxDeclareSphinxColorOption{tipBorderColor}{{rgb}{0,0,0}}
% admonition boxes, "heavy" style
\sphinxDeclareSphinxColorOption{warningBorderColor}{{rgb}{0,0,0}}
\sphinxDeclareSphinxColorOption{cautionBorderColor}{{rgb}{0,0,0}}
\sphinxDeclareSphinxColorOption{attentionBorderColor}{{rgb}{0,0,0}}
\sphinxDeclareSphinxColorOption{dangerBorderColor}{{rgb}{0,0,0}}
\sphinxDeclareSphinxColorOption{errorBorderColor}{{rgb}{0,0,0}}
\sphinxDeclareSphinxColorOption{warningBgColor}{{rgb}{1,1,1}}
\sphinxDeclareSphinxColorOption{cautionBgColor}{{rgb}{1,1,1}}
\sphinxDeclareSphinxColorOption{attentionBgColor}{{rgb}{1,1,1}}
\sphinxDeclareSphinxColorOption{dangerBgColor}{{rgb}{1,1,1}}
\sphinxDeclareSphinxColorOption{errorBgColor}{{rgb}{1,1,1}}
%%%%%%%%
%
% Additions of CSS-like keys (in particular for rounded boxes) at 5.1.0
% --------------------------
%
% In future, an alternative user interface will perhaps be provided via
% CSS-like input in a configuration variable latex_css, and Sphinx
% will then parse it into the \sphinxsetup options described it. 
%
% In the meantime we adopt already some CSS-like names.  However,
% attention to not use these options as genuine CSS properties, only
% very limited syntax is supported.
%
\def\spxstring@none{none}
\def\spxstring@clone{clone}
%
% Refactoring at 6.2.0
% --------------------
%
% - Legacy \dimen registers \sphinxverbatimborder, \sphinxverbatimsep,
%   \sphinxshadowsep, \sphinxshadowsize, and \sphinxshadowrule,
%   which had been deprecated have finally been removed,
% - No \dimen registers used at all (at some point the \dimen's
%   \spxdimen@pre@border and \spxdimen@topic@border were still defined)
%   as all dimensions are stored in macros.  Dimen registers are used only
%   by the box macros of sphinxpackageboxes.sty, and are initialized from
%   the macro storage relative to each type (code-block, topic, ...)
%   at time of use.
%
% 6.2.0 batch defines in one go all auxiliaries for code blocks, topics,
% and warning-type admonitions.  Some needed add-ons due to maintaining
% legacy options and specific defaults are handled in a second step.
%
% This unification facilitates adding a \sphinxbox which has full key=value
% of all options with CSS-inspired names which were added at 5.1.0 for
% extended customization possibility of code-blocks, topics and admonitions.
% Except that \sphinxbox is for boxing inline elements (no linebreak, no
% pagebreak).
%
% MEMO: the 6.2.0 refactoring induced a change that the default \fboxrule used
% by verbatimborder and shadowrule is now not expanded to its value immediately in
% preamble (no assignment to a \dimen register is done, only storage in a
% macro).  In practice this changed nothing to existing projects.
%
% Border keys
%
\def\spx@tempa#1{% #1 = macro prefix
  \expandafter\spx@tempb
  \csname #1border\expandafter\endcsname
  \csname #1border@top\expandafter\endcsname
  \csname #1border@right\expandafter\endcsname
  \csname #1border@bottom\expandafter\endcsname
  \csname #1border@left\expandafter\endcsname
  \csname if#1border@open\expandafter\endcsname
  \csname #1border@opentrue\expandafter\endcsname
  \csname #1border@openfalse\endcsname
}%
\def\spx@tempb #1#2#3#4#5#6#7#8#9{% #9 = option prefix
  \define@key{sphinx}{#9border-top-width}{\def#2{##1}}%
  \define@key{sphinx}{#9border-right-width}{\def#3{##1}}%
  \define@key{sphinx}{#9border-bottom-width}{\def#4{##1}}%
  \define@key{sphinx}{#9border-left-width}{\def#5{##1}}%
  \define@key{sphinx}{#9border-width}{%
    \def#1{##1}% MEMO: not immediately expanded, should this be changed?
    \def#2{#1}\let#3#2\let#4#2\let#5#2%
    }%
  \newif#6%
  \define@key{sphinx}{#9box-decoration-break}%
           {\begingroup\edef\spx@tempa{##1}\expandafter\endgroup
            \ifx\spx@tempa\spxstring@clone#8\else#7\fi}%
  \spx@tempc{#9}% option prefix
}
\def\spx@tempc #1#2{% #1 = option prefix, #2 = legacy option name
  % keep legacy option names as aliases to new-named options
  \expandafter\let\csname KV@sphinx@#2\expandafter\endcsname
                  \csname KV@sphinx@#1border-width\endcsname
  % init border-width (fetches next argument)
  \csname KV@sphinx@#1border-width\endcsname
}
%          macro prefix   option prefix   legacy option    init value
\spx@tempa{spx@pre@}      {pre_}          {verbatimborder} \fboxrule
\spx@tempa{spx@topic@}    {div.topic_}    {shadowrule}     \fboxrule
\spx@tempa{spx@warning@}  {div.warning_}  {warningborder}  {1pt}
\spx@tempa{spx@caution@}  {div.caution_}  {cautionborder}  {1pt}
\spx@tempa{spx@attention@}{div.attention_}{attentionborder}{1pt}
\spx@tempa{spx@danger@}   {div.danger_}   {dangerborder}   {1pt}
\spx@tempa{spx@error@}    {div.error_}    {errorborder}    {1pt}
% this one new at 6.2.0:
\spx@tempa{spx@box@}      {box_}          {boxborder}      \fboxrule
% Set default box-decoration-break style for codeblocks to slice
\spx@pre@border@opentrue % new default at 6.0.0: slice, not clone

% Padding keys
%
\def\spx@tempa#1{%
  \expandafter\spx@tempb
  \csname #1padding\expandafter\endcsname
  \csname #1padding@top\expandafter\endcsname
  \csname #1padding@right\expandafter\endcsname
  \csname #1padding@bottom\expandafter\endcsname
  \csname #1padding@left\endcsname
}%
\def\spx@tempb #1#2#3#4#5#6{% #6 = option prefix
  \define@key{sphinx}{#6padding-top}{\def#2{##1}}%
  \define@key{sphinx}{#6padding-right}{\def#3{##1}}%
  \define@key{sphinx}{#6padding-bottom}{\def#4{##1}}%
  \define@key{sphinx}{#6padding-left}{\def#5{##1}}%
  \define@key{sphinx}{#6padding}{%
     \def#1{##1}%
     \def#2{#1}\let#3#2\let#4#2\let#5#2%
  }%
  % initialization (will fetch "init" argument next):
  \csname KV@sphinx@#6padding\endcsname
}
% MEMO: prior to 6.2.0 the \fboxsep value (0.4pt, a priori) was
% frozen here via a \dimen assignement. Now it remains \fboxsep
% until being used.
%         #1 macro prefix #6 option prefix  init value
\spx@tempa{spx@pre@}      {pre_}            \fboxsep
\spx@tempa{spx@topic@}    {div.topic_}      {5pt}
% MEMO: prior to 5.1.0 padding was not separately customizable
% from border width for warning type admonitions. The below
% keeps the legacy behavior of a constant borderwidth+padding.
% The dim expression is not evaluated yet, only at time of use.
\spx@tempa{spx@warning@}  {div.warning_}    {\dimexpr.6\baselineskip-\spx@warning@border\relax}
\spx@tempa{spx@caution@}  {div.caution_}    {\dimexpr.6\baselineskip-\spx@caution@border\relax}
\spx@tempa{spx@attention@}{div.attention_}  {\dimexpr.6\baselineskip-\spx@attention@border\relax}
\spx@tempa{spx@danger@}   {div.danger_}     {\dimexpr.6\baselineskip-\spx@danger@border\relax}
\spx@tempa{spx@error@}    {div.error_}      {\dimexpr.6\baselineskip-\spx@error@border\relax}
\spx@tempa{spx@box@}      {box_}            \fboxsep % new at 6.2.0
% define legacy verbatimsep key as alias of pre_padding key
\expandafter\let\expandafter\KV@sphinx@verbatimsep\csname KV@sphinx@pre_padding\endcsname
% define legacy shadowsep key as alias of div.topic_padding key
\expandafter\let\expandafter\KV@sphinx@shadowsep\csname KV@sphinx@div.topic_padding\endcsname
% also define a boxsep key as alias of box_padding key, because we defined boxborder
% boxborder was defined only as collateral of batch definitions so some hesitation
% we do keep these boxborder and boxsep as they configure the probably two most
% important parameters; still I feel not definitive about what is best to do
\expandafter\let\expandafter\KV@sphinx@boxsep\csname KV@sphinx@box_padding\endcsname

% Corner radii keys
%
\def\spx@tempa#1{% #1 = macro prefix
  \expandafter\spx@tempb
  \csname #1radius@topleft\expandafter\endcsname
  \csname #1radius@topright\expandafter\endcsname
  \csname #1radius@bottomright\expandafter\endcsname
  \csname #1radius@bottomleft\endcsname
}%
\def\spx@tempb #1#2#3#4#5{% #5 = option prefix
  \define@key{sphinx}{#5border-top-left-radius}{\def#1{##1}}%
  \define@key{sphinx}{#5border-top-right-radius}{\def#2{##1}}%
  \define@key{sphinx}{#5border-bottom-right-radius}{\def#3{##1}}%
  \define@key{sphinx}{#5border-bottom-left-radius}{\def#4{##1}}%
  \define@key{sphinx}{#5border-radius}{\def#1{##1}\let#2#1\let#3#1\let#4#1}%
  \csname KV@sphinx@#5border-radius\endcsname % fetches next argument
}
%          macro prefix    option prefix     init value
\spx@tempa{spx@pre@}      {pre_}            {3pt}% new default at 6.0.0
\spx@tempa{spx@topic@}    {div.topic_}      \z@
\spx@tempa{spx@warning@}  {div.warning_}    \z@
\spx@tempa{spx@caution@}  {div.caution_}    \z@
\spx@tempa{spx@attention@}{div.attention_}  \z@
\spx@tempa{spx@danger@}   {div.danger_}     \z@
\spx@tempa{spx@error@}    {div.error_}      \z@
\spx@tempa{spx@box@}      {box_}            {3pt}% new and tentative at 6.2.0

% Shadow keys
%
\def\spx@tempa#1{%
  \expandafter\spx@tempb
  \csname if#1withshadow\expandafter\endcsname
  \csname if#1insetshadow\endcsname
}%
\def\spx@tempb#1#2{\newif#1\newif#2}%
%          macro prefix
\spx@tempa{spx@pre@}
\spx@tempa{spx@topic@}
\spx@tempa{spx@warning@}
\spx@tempa{spx@caution@}
\spx@tempa{spx@attention@}
\spx@tempa{spx@danger@}
\spx@tempa{spx@error@}
\spx@tempa{spx@box@}% new at 6.2.0
%
\def\spx@tempa#1{% #1 = macro prefix
  \expandafter\spx@tempb
  \csname #1withshadowtrue\expandafter\endcsname
  \csname #1withshadowfalse\expandafter\endcsname
  \csname #1insetshadowtrue\expandafter\endcsname
  \csname #1insetshadowfalse\expandafter\endcsname
  \csname #1shadow@setter\expandafter\endcsname
  \csname #1shadow@xoffset\expandafter\endcsname
  \csname #1shadow@yoffset\endcsname
}%
\def\spx@tempb#1#2#3#4#5#6#7#8{% #8 = option prefix
  \define@key{sphinx}{#8box-shadow}{#5##1 {} {} \@nnil}%
  \def#5##1 ##2 ##3 ##4\@nnil{%
  \begingroup\edef\spx@tempa{##1}\expandafter\endgroup
  \ifx\spx@tempa\spxstring@none
        #2%
        % MEMO: here the code uses an \edef+\number so dimensions
        % are evaluated at time of use of option, they are not
        % delayed (this is in contrast with other dimension specs,
        % the delay being only strictly required by padding key of
        % warning type notices, for backward legacy behavior).
        % These things probably do not matter at all, as users
        % will mainly use explicit dimension denotations like "4pt".
  \else #1\edef#6{\number\dimexpr##1\relax sp}%
          \edef#7{\number\dimexpr##2+\z@\relax sp}%
    \if\relax\detokenize{##3}\relax#4\else#3\fi
  \fi
  }%
  #5none {} {} \@nnil % no shadow by default (except for topic, see below)
}
\spx@tempa{spx@pre@}      {pre_}
\spx@tempa{spx@topic@}    {div.topic_}
% This corresponds to the legacy parameters of ShadowBox
    \spx@topic@shadow@setter 4pt 4pt {} \@nnil
\spx@tempa{spx@warning@}  {div.warning_}
\spx@tempa{spx@caution@}  {div.caution_}
\spx@tempa{spx@attention@}{div.attention_}
\spx@tempa{spx@danger@}   {div.danger_}
\spx@tempa{spx@error@}    {div.error_}
\spx@tempa{spx@box@}      {box_}% new at 6.2.0

% Support for legacy shadowsize
% This definition was broken at 5.1.0 and fixed at 6.1.2
\define@key{sphinx}{shadowsize}{%
  \edef\spx@topic@shadow@xoffset{\number\dimexpr#1\relax sp}%
  \let\spx@topic@shadow@yoffset\spx@topic@shadow@xoffset
  \ifdim\spx@topic@shadow@xoffset=\z@
      \spx@topic@withshadowfalse
  \else
      \spx@topic@withshadowtrue
      \spx@topic@insetshadowfalse
  \fi
}%

% Color keys
% (three of them: border, background, shadow)
%
% We associate a boolean to each color, so that the box code can
% decide to insert a \color call or consider it not needed.
% (pending question: should the box code systematically do
%  a \normalcolor?)
\def\spx@tempa#1{%
  \expandafter\spx@tempb
  \csname if#1withshadowcolor\expandafter\endcsname
  \csname if#1withbordercolor\expandafter\endcsname
  \csname if#1withbackgroundcolor\endcsname
}%
\def\spx@tempb#1#2#3{\newif#1\newif#2\newif#3}%
%          macro prefix
\spx@tempa{spx@pre@}
\spx@tempa{spx@topic@}
\spx@tempa{spx@warning@}
\spx@tempa{spx@caution@}
\spx@tempa{spx@attention@}
\spx@tempa{spx@danger@}
\spx@tempa{spx@error@}
%
\def\spx@tempa#1{% #1 = macro prefix
  \expandafter\spx@tempb
  \csname #1withbordercolortrue\expandafter\endcsname
  \csname #1withbackgroundcolortrue\expandafter\endcsname
  \csname #1withshadowcolortrue\endcsname
}
\def\spx@tempb#1#2#3#4#5{% #4 = option prefix, #5 = color name prefix
  \define@key{sphinx}{#4border-TeXcolor}%
     {#1\spx@defineorletcolor{#5BorderColor}##1\relax}%
  \define@key{sphinx}{#4background-TeXcolor}%
     {#2\spx@defineorletcolor{#5BgColor}##1\relax}%
  \define@key{sphinx}{#4box-shadow-TeXcolor}%
     {#3\spx@defineorletcolor{#5ShadowColor}##1\relax}%
}
%          macro prefix    option prefix    color name prefix
\spx@tempa{spx@pre@}      {pre_}            {Verbatim}
    % internal legacy color name is VerbatimColor not VerbatimBgColor:
    \define@key{sphinx}{pre_background-TeXcolor}%
      {\spx@pre@withbackgroundcolortrue\spx@defineorletcolor{VerbatimColor}#1\relax}%
    \spx@pre@withbordercolortrue        % 6.0.0 VerbatimBorderColor {RGB}{32,32,32}
    \spx@pre@withbackgroundcolortrue    % 6.0.0 VerbatimColor       {gray}{0.95}
    % Keep functioning these legacy sphinxsetup option names
    \expandafter\let\expandafter\KV@sphinx@VerbatimBorderColor
                                \csname KV@sphinx@pre_border-TeXcolor\endcsname
    \expandafter\let\expandafter\KV@sphinx@VerbatimColor
                                \csname KV@sphinx@pre_background-TeXcolor\endcsname
%          macro prefix   option prefix     color name prefix
% MEMO: prior to 6.2.0, internal color names started with sphinxtopic, not
% sphinxTopic, and it was sphinxTopicBackgroundColor, not sphinxtopicBgColor.
\spx@tempa{spx@topic@}    {div.topic_}      {sphinxtopic}% (no legacy interface)
\spx@tempa{spx@warning@}  {div.warning_}    {sphinxwarning}
\spx@tempa{spx@caution@}  {div.caution_}    {sphinxcaution}
\spx@tempa{spx@attention@}{div.attention_}  {sphinxattention}
\spx@tempa{spx@danger@}   {div.danger_}     {sphinxdanger}
\spx@tempa{spx@error@}    {div.error_}      {sphinxerror}
\spx@tempa{spx@box@}      {box_}            {sphinxbox}% new at 6.2.0
    % Keep legacy sphinxsetup interface for warning type notices
    \def\spx@tempa#1#2{% #1 = option prefix, #2 = legacy option prefix
      \expandafter\let\csname KV@sphinx@#2BorderColor\expandafter\endcsname
                      \csname KV@sphinx@#1border-TeXcolor\endcsname
      \expandafter\let\csname KV@sphinx@#2BgColor\expandafter\endcsname
                      \csname KV@sphinx@#1background-TeXcolor\endcsname
    }
    \spx@tempa{div.warning_}    {warning}
    \spx@tempa{div.caution_}    {caution}
    \spx@tempa{div.attention_}  {attention}
    \spx@tempa{div.danger_}     {danger}
    \spx@tempa{div.error_}      {error}

\DeclareDefaultOption{\@unknownoptionerror}
\ProcessKeyvalOptions*
% don't allow use of maxlistdepth via \sphinxsetup.
\DisableKeyvalOption{sphinx}{maxlistdepth}
\DisableKeyvalOption{sphinx}{numfigreset}
\DisableKeyvalOption{sphinx}{nonumfigreset}
\DisableKeyvalOption{sphinx}{mathnumfig}
\DisableKeyvalOption{sphinx}{booktabs}
\DisableKeyvalOption{sphinx}{borderless}
\DisableKeyvalOption{sphinx}{rowcolors}
% FIXME: this is unrelated to an option, move this elsewhere
% To allow hyphenation of first word in narrow contexts; no option,
% customization to be done via 'preamble' key
\newcommand*\sphinxAtStartPar{\leavevmode\nobreak\hskip\z@skip}
% No need for the \hspace{0pt} trick (\hskip\z@skip) with luatex
\ifdefined\directlua\let\sphinxAtStartPar\@empty\fi
% user interface: options can be changed midway in a document!
\newcommand\sphinxsetup[1]{\setkeys{sphinx}{#1}}


%% MISCELLANEOUS CONTEXT
%
% flag to be set in a framed environment
% (defined here as currently needed by three sphinxlatex....sty files and
% even if not needed if such files are replaced, the definition does no harm)
\newif\ifspx@inframed
%
% \spx@ifcaptionpackage (defined at begin document)
%     is needed currently in macros from:
%     sphinxlatexliterals.sty (sphinxVerbatim)
%     sphinxlatextables.sty   (for some macros used in the table templates)
%
% \sphinxcaption is mark-up injected by the tabular and tabulary templates
%     it is defined in sphinxlatextables.sty
%
% store the original \caption macro for usage with figures inside longtable
% and tabulary cells. Make sure we get the final \caption in presence of
% caption package, whether the latter was loaded before or after sphinx.
\AtBeginDocument{%
    \let\spx@originalcaption\caption
    \@ifpackageloaded{caption}
      {\let\spx@ifcaptionpackage\@firstoftwo
       \caption@AtBeginDocument*{\let\spx@originalcaption\caption}%
% in presence of caption package, drop our own \sphinxcaption whose aim was to
% ensure same width of caption to all kinds of tables (tabular(y), longtable),
% because caption package has its own width (or margin) option
       \def\sphinxcaption{\caption}%
      }%
      {\let\spx@ifcaptionpackage\@secondoftwo}%
}

%% PASS OPTIONS
%
% pass options to hyperref; it must not have been loaded already
\input{sphinxoptionshyperref.sty}
% pass options to geometry; it must not have been loaded already
\input{sphinxoptionsgeometry.sty}


%% COLOR (general)
%
% FIXME: these two should be deprecated
%
% FIXME: \normalcolor should be used and \py@NormalColor never defined
\def\py@NormalColor{\color{black}}
% FIXME: \color{TitleColor} should be used directly and \py@TitleColor
% should never get defined.
\def\py@TitleColor{\color{TitleColor}}


%% PACKAGES
%
% as will be indicated below, secondary style files load some more packages
%
% For \text macro (sphinx.util.texescape)
% also for usage of \firstchoice@true(false) in sphinxlatexgraphics.sty
\RequirePackage{amstext}
% It was passed "warn" option from latex template in case it is already loaded
% via some other package before \usepackage{sphinx} in preamble
\RequirePackage{textcomp}
% For the H specifier. Do not \restylefloat{figure}, it breaks Sphinx code
% for allowing figures in tables.
\RequirePackage{float}
% For floating figures in the text. Better to load after float.
\RequirePackage{wrapfig}
% Provides \captionof, used once by latex writer (\captionof{figure})
\RequirePackage{capt-of}
% Support hlist directive
\RequirePackage{multicol}


%% GRAPHICS
%
% It will always be needed, so let's load it here
\RequirePackage{graphicx}
\input{sphinxlatexgraphics.sty}


%% FRAMED ENVIRONMENTS
%
% \sphinxbox added at 6.2.0, support code in sphinxpackageboxes
% some of these defaults are already set, we repeat here via \sphinxsetup
\sphinxsetup{boxborder=\fboxrule,
             boxsep=\fboxsep,
             box_border-radius=3pt,
% border left without specific color, i.e. uses a priori black
             box_background-TeXcolor=VerbatimColor}%
\RequirePackage{sphinxpackageboxes}
\def\spx@RequirePackage@PictIIe{%
\IfFileExists{pict2e.sty}
   {\RequirePackage{pict2e}}
   {\PackageWarningNoLine{sphinx}{%
       The package pict2e is required for rounded boxes.\MessageBreak
       It does not seem to be available on your system.\MessageBreak
       Options for setting radii will be ignored}%
    \sphinxbuildwarning{nopict2e}%
    \def\spx@boxes@fcolorbox@rounded{\spx@boxes@fcolorbox}%
   }%
}%
\AtBeginDocument{%
    \spx@RequirePackage@PictIIe
    \@ifpackageloaded{pict2e}{\let\spx@ifpackageloaded@pictiie\@firstoftwo}%
                             {\let\spx@ifpackageloaded@pictiie\@secondoftwo}%
}%
\input{sphinxlatexadmonitions.sty}
\input{sphinxlatexliterals.sty}
\input{sphinxlatexshadowbox.sty}


%% CONTAINERS
%
\input{sphinxlatexcontainers.sty}


%% PYGMENTS
% stylesheet for highlighting with pygments
\RequirePackage{sphinxhighlight}


%% TABLES
%
\input{sphinxlatextables.sty}


%% NUMBERING OF FIGURES, TABLES, AND LITERAL BLOCKS
%
\input{sphinxlatexnumfig.sty}


%% LISTS
%
\input{sphinxlatexlists.sty}


%% FOOTNOTES
%
% Support scopes for footnote numbering
% This is currently stepped at each input file
\newcounter{sphinxscope}
\newcommand{\sphinxstepscope}{\stepcounter{sphinxscope}}
% We ensure \thesphinxscope expands to digits tokens, independently of language
\renewcommand{\thesphinxscope}{\number\value{sphinxscope}}
\newcommand\sphinxthefootnotemark[2]{%
   % this is used to make reference to an explicitly numbered footnote not on same page
   % #1=label of footnote text, #2=page number where footnote text was printed
   \ifdefined\pagename
      \pagename\space#2, % <- space
    \else
      p. #2, % <- space
   \fi #1% no space
}
% support large numbered footnotes in minipage; but this is now obsolete
% from systematic use of savenotes environment around minipages
\def\thempfootnote{\arabic{mpfootnote}}
% This package is needed to support hyperlinked footnotes in tables and
% framed contents, and to allow code-blocks in footnotes.
\RequirePackage{sphinxpackagefootnote}


%% INDEX, BIBLIOGRAPHY, APPENDIX, TABLE OF CONTENTS
%
\input{sphinxlatexindbibtoc.sty}


%% STYLING
%
\input{sphinxlatexstylepage.sty}
\input{sphinxlatexstyleheadings.sty}
\input{sphinxlatexstyletext.sty}


%% MODULE RELEASE DATA AND OBJECT DESCRIPTIONS
%
\input{sphinxlatexobjects.sty}


% FIXME: this line should be dropped, as "9" is default anyhow.
\ifdefined\pdfcompresslevel\pdfcompresslevel = 9 \fi


\endinput