% -*- 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
%% Prevent default \sphinxtableofcontentshook from overwriting above tweaks.
\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
\usepackage{ifthen}
\newboolean{enablecjk}
\setboolean{enablecjk}{false}
\IfFontExistsTF{Noto Sans CJK SC}{
\IfFileExists{xeCJK.sty}{
\setboolean{enablecjk}{true}
}{}
}{}
\ifthenelse{\boolean{enablecjk}}{
% Load xeCJK when both the Noto Sans CJK font and xeCJK.sty are 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]
% 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
% Suppress extra white space at latin .. non-latin in literal blocks
\AtBeginEnvironment{sphinxVerbatim}{\CJKsetecglue{}}
}{ % Don't enable CJK
% 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 or the xecjk package in place of
%% zh_CN translation.
\begin{sphinxadmonition}{note}{Note on missing fonts and a package:}
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 and/or the texlive-xecjk
package.
If you want them, please install non-variable ``Noto Sans CJK''
font families along with the texlive-xecjk package by following
instructions from
\sphinxcode{./scripts/sphinx-pre-install}.
Having optional non-variable ``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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