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+% -*- coding: utf-8 -*-
+% SPDX-License-Identifier: GPL-2.0
+%
+% LaTeX preamble for "make latexdocs" or "make pdfdocs" including:
+% - TOC width settings
+% - Setting of tabulary (\tymin)
+% - Headheight setting for fancyhdr
+% - Fontfamily settings for CJK (Chinese, Japanese, and Korean) translations
+%
+% Note on the suffix of .sty:
+% This is not implemented as a LaTeX style file, but as a file containing
+% plain LaTeX code to be included into preamble.
+% ".sty" is chosen because ".tex" would cause the build scripts to confuse
+% this file with a LaTeX main file.
+%
+% Copyright (C) 2022 Akira Yokosawa
+
+% Custom width parameters for TOC
+% - Redefine low-level commands defined in report.cls.
+% - Indent of 2 chars is preserved for ease of comparison.
+% Summary of changes from default params:
+% Width of page number (\@pnumwidth): 1.55em -> 2.7em
+% Width of chapter number: 1.5em -> 2.4em
+% Indent of section number: 1.5em -> 2.4em
+% Width of section number: 2.6em -> 3.2em
+% Indent of subsection number: 4.1em -> 5.6em
+% Width of subsection number: 3.5em -> 4.3em
+%
+% These params can have 4 digit page counts, 3 digit chapter counts,
+% section counts of 4 digits + 1 period (e.g., 18.10), and subsection counts
+% of 5 digits + 2 periods (e.g., 18.7.13).
+\makeatletter
+%% Redefine \@pnumwidth (page number width)
+\renewcommand*\@pnumwidth{2.7em}
+%% Redefine \l@chapter (chapter list entry)
+\renewcommand*\l@chapter[2]{%
+ \ifnum \c@tocdepth >\m@ne
+ \addpenalty{-\@highpenalty}%
+ \vskip 1.0em \@plus\p@
+ \setlength\@tempdima{2.4em}%
+ \begingroup
+ \parindent \z@ \rightskip \@pnumwidth
+ \parfillskip -\@pnumwidth
+ \leavevmode \bfseries
+ \advance\leftskip\@tempdima
+ \hskip -\leftskip
+ #1\nobreak\hfil
+ \nobreak\hb@xt@\@pnumwidth{\hss #2%
+ \kern-\p@\kern\p@}\par
+ \penalty\@highpenalty
+ \endgroup
+ \fi}
+%% Redefine \l@section and \l@subsection
+\renewcommand*\l@section{\@dottedtocline{1}{2.4em}{3.2em}}
+\renewcommand*\l@subsection{\@dottedtocline{2}{5.6em}{4.3em}}
+\makeatother
+%% Sphinx < 1.8 doesn't have \sphinxtableofcontentshook
+\providecommand{\sphinxtableofcontentshook}{}
+%% Undefine it for compatibility with Sphinx 1.7.9
+\renewcommand{\sphinxtableofcontentshook}{} % Empty the hook
+
+% Prevent column squeezing of tabulary. \tymin is set by Sphinx as:
+% \setlength{\tymin}{3\fontcharwd\font`0 }
+% , which is too short.
+\setlength{\tymin}{20em}
+
+% Adjust \headheight for fancyhdr
+\addtolength{\headheight}{1.6pt}
+\addtolength{\topmargin}{-1.6pt}
+
+% Translations have Asian (CJK) characters which are only displayed if
+% xeCJK is used
+\IfFontExistsTF{Noto Sans CJK SC}{
+ % Load xeCJK when CJK font is available
+ \usepackage{xeCJK}
+ % Noto CJK fonts don't provide slant shape. [AutoFakeSlant] permits
+ % its emulation.
+ % Select KR variant at the beginning of each document so that quotation
+ % and apostorph symbols of half-width is used in TOC of Latin documents.
+ \IfFontExistsTF{Noto Serif CJK KR}{
+ \setCJKmainfont{Noto Serif CJK KR}[AutoFakeSlant]
+ }{
+ \setCJKmainfont{Noto Sans CJK KR}[AutoFakeSlant]
+ }
+ \setCJKsansfont{Noto Sans CJK KR}[AutoFakeSlant]
+ \setCJKmonofont{Noto Sans Mono CJK KR}[AutoFakeSlant]
+ % Teach xeCJK of half-width symbols
+ \xeCJKDeclareCharClass{HalfLeft}{`“,`‘}
+ \xeCJKDeclareCharClass{HalfRight}{`”,`’}
+ % CJK Language-specific font choices
+ %% for Simplified Chinese
+ \IfFontExistsTF{Noto Serif CJK SC}{
+ \newCJKfontfamily[SCmain]\scmain{Noto Serif CJK SC}[AutoFakeSlant]
+ \newCJKfontfamily[SCserif]\scserif{Noto Serif CJK SC}[AutoFakeSlant]
+ }{
+ \newCJKfontfamily[SCmain]\scmain{Noto Sans CJK SC}[AutoFakeSlant]
+ \newCJKfontfamily[SCserif]\scserif{Noto Sans CJK SC}[AutoFakeSlant]
+ }
+ \newCJKfontfamily[SCsans]\scsans{Noto Sans CJK SC}[AutoFakeSlant]
+ \newCJKfontfamily[SCmono]\scmono{Noto Sans Mono CJK SC}[AutoFakeSlant]
+ %% for Traditional Chinese
+ \IfFontExistsTF{Noto Serif CJK TC}{
+ \newCJKfontfamily[TCmain]\tcmain{Noto Serif CJK TC}[AutoFakeSlant]
+ \newCJKfontfamily[TCserif]\tcserif{Noto Serif CJK TC}[AutoFakeSlant]
+ }{
+ \newCJKfontfamily[TCmain]\tcmain{Noto Sans CJK TC}[AutoFakeSlant]
+ \newCJKfontfamily[TCserif]\tcserif{Noto Sans CJK TC}[AutoFakeSlant]
+ }
+ \newCJKfontfamily[TCsans]\tcsans{Noto Sans CJK TC}[AutoFakeSlant]
+ \newCJKfontfamily[TCmono]\tcmono{Noto Sans Mono CJK TC}[AutoFakeSlant]
+ %% for Korean
+ \IfFontExistsTF{Noto Serif CJK KR}{
+ \newCJKfontfamily[KRmain]\krmain{Noto Serif CJK KR}[AutoFakeSlant]
+ \newCJKfontfamily[KRserif]\krserif{Noto Serif CJK KR}[AutoFakeSlant]
+ }{
+ \newCJKfontfamily[KRmain]\krmain{Noto Sans CJK KR}[AutoFakeSlant]
+ \newCJKfontfamily[KRserif]\krserif{Noto Sans CJK KR}[AutoFakeSlant]
+ }
+ \newCJKfontfamily[KRsans]\krsans{Noto Sans CJK KR}[AutoFakeSlant]
+ \newCJKfontfamily[KRmono]\krmono{Noto Sans Mono CJK KR}[AutoFakeSlant]
+ %% for Japanese
+ \IfFontExistsTF{Noto Serif CJK JP}{
+ \newCJKfontfamily[JPmain]\jpmain{Noto Serif CJK JP}[AutoFakeSlant]
+ \newCJKfontfamily[JPserif]\jpserif{Noto Serif CJK JP}[AutoFakeSlant]
+ }{
+ \newCJKfontfamily[JPmain]\jpmain{Noto Sans CJK JP}[AutoFakeSlant]
+ \newCJKfontfamily[JPserif]\jpserif{Noto Sans CJK JP}[AutoFakeSlant]
+ }
+ \newCJKfontfamily[JPsans]\jpsans{Noto Sans CJK JP}[AutoFakeSlant]
+ \newCJKfontfamily[JPmono]\jpmono{Noto Sans Mono CJK JP}[AutoFakeSlant]
+ % Dummy commands for Sphinx < 2.3 (no 'extrapackages' support)
+ \providecommand{\onehalfspacing}{}
+ \providecommand{\singlespacing}{}
+ % Define custom macros to on/off CJK
+ %% One and half spacing for CJK contents
+ \newcommand{\kerneldocCJKon}{\makexeCJKactive\onehalfspacing}
+ \newcommand{\kerneldocCJKoff}{\makexeCJKinactive\singlespacing}
+ % Define custom macros for switching CJK font setting
+ %% for Simplified Chinese
+ \newcommand{\kerneldocBeginSC}{%
+ \begingroup%
+ \scmain%
+ \xeCJKDeclareCharClass{FullLeft}{`“,`‘}% Full-width in SC
+ \xeCJKDeclareCharClass{FullRight}{`”,`’}% Full-width in SC
+ \renewcommand{\CJKrmdefault}{SCserif}%
+ \renewcommand{\CJKsfdefault}{SCsans}%
+ \renewcommand{\CJKttdefault}{SCmono}%
+ \xeCJKsetup{CJKspace = false}% gobble white spaces by ' '
+ % For CJK ascii-art alignment
+ \setmonofont{Noto Sans Mono CJK SC}[AutoFakeSlant]%
+ }
+ \newcommand{\kerneldocEndSC}{\endgroup}
+ %% for Traditional Chinese
+ \newcommand{\kerneldocBeginTC}{%
+ \begingroup%
+ \tcmain%
+ \xeCJKDeclareCharClass{FullLeft}{`“,`‘}% Full-width in TC
+ \xeCJKDeclareCharClass{FullRight}{`”,`’}% Full-width in TC
+ \renewcommand{\CJKrmdefault}{TCserif}%
+ \renewcommand{\CJKsfdefault}{TCsans}%
+ \renewcommand{\CJKttdefault}{TCmono}%
+ \xeCJKsetup{CJKspace = false}% gobble white spaces by ' '
+ % For CJK ascii-art alignment
+ \setmonofont{Noto Sans Mono CJK TC}[AutoFakeSlant]%
+ }
+ \newcommand{\kerneldocEndTC}{\endgroup}
+ %% for Korean
+ \newcommand{\kerneldocBeginKR}{%
+ \begingroup%
+ \krmain%
+ \renewcommand{\CJKrmdefault}{KRserif}%
+ \renewcommand{\CJKsfdefault}{KRsans}%
+ \renewcommand{\CJKttdefault}{KRmono}%
+ % \xeCJKsetup{CJKspace = true} % true by default
+ % For CJK ascii-art alignment (still misaligned for Hangul)
+ \setmonofont{Noto Sans Mono CJK KR}[AutoFakeSlant]%
+ }
+ \newcommand{\kerneldocEndKR}{\endgroup}
+ %% for Japanese
+ \newcommand{\kerneldocBeginJP}{%
+ \begingroup%
+ \jpmain%
+ \renewcommand{\CJKrmdefault}{JPserif}%
+ \renewcommand{\CJKsfdefault}{JPsans}%
+ \renewcommand{\CJKttdefault}{JPmono}%
+ \xeCJKsetup{CJKspace = false}% gobble white space by ' '
+ % For CJK ascii-art alignment
+ \setmonofont{Noto Sans Mono CJK JP}[AutoFakeSlant]%
+ }
+ \newcommand{\kerneldocEndJP}{\endgroup}
+
+ % Single spacing in literal blocks
+ \fvset{baselinestretch=1}
+ % To customize \sphinxtableofcontents
+ \usepackage{etoolbox}
+ % Inactivate CJK after tableofcontents
+ \apptocmd{\sphinxtableofcontents}{\kerneldocCJKoff}{}{}
+ \xeCJKsetup{CJKspace = true}% For inter-phrase space of Korean TOC
+}{ % No CJK font found
+ % Custom macros to on/off CJK and switch CJK fonts (Dummy)
+ \newcommand{\kerneldocCJKon}{}
+ \newcommand{\kerneldocCJKoff}{}
+ %% By defining \kerneldocBegin(SC|TC|KR|JP) as commands with an argument
+ %% and ignore the argument (#1) in their definitions, whole contents of
+ %% CJK chapters can be ignored.
+ \newcommand{\kerneldocBeginSC}[1]{%
+ %% Put a note on missing CJK fonts in place of zh_CN translation.
+ \begin{sphinxadmonition}{note}{Note on missing fonts:}
+ Translations of Simplified Chinese (zh\_CN), Traditional Chinese
+ (zh\_TW), Korean (ko\_KR), and Japanese (ja\_JP) were skipped
+ due to the lack of suitable font families.
+
+ If you want them, please install ``Noto Sans CJK'' font families
+ by following instructions from
+ \sphinxcode{./scripts/sphinx-pre-install}.
+ Having optional ``Noto Serif CJK'' font families will improve
+ the looks of those translations.
+ \end{sphinxadmonition}}
+ \newcommand{\kerneldocEndSC}{}
+ \newcommand{\kerneldocBeginTC}[1]{}
+ \newcommand{\kerneldocEndTC}{}
+ \newcommand{\kerneldocBeginKR}[1]{}
+ \newcommand{\kerneldocEndKR}{}
+ \newcommand{\kerneldocBeginJP}[1]{}
+ \newcommand{\kerneldocEndJP}{}
+}
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