linux-stable/Documentation/sphinx/kerneldoc-preamble.sty

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docs: pdfdocs: Pull LaTeX preamble part out of conf.py Quote from Jon's remark [1]: I do notice that Documentation/conf.py is getting large and unapproachable. At some future point, it might be nice to pull all of the latex stuff out into a separate file where it won't scare people who stumble into it by accident. Pull LaTeX preamble settings added since commit 3b4c963243b1 ("docs: conf.py: adjust the LaTeX document output") out into sphinx/kerneldoc-preamble.sty. It will be copied to the build directory by the added "latex_additional_files" setting in conf.py. As a bonus, LaTeX/TeX code can be maintained without escaping backslashes. To compensate the loss of change history in sphinx/kerneldoc-preamble.sty, here is a list of changes made in conf.py: - f7ebe6b76940 ("docs: Activate exCJK only in CJK chapters") - 0afd4df0d16a ("docs: pdfdocs: Prevent column squeezing by tabulary") - 659653c9e546 ("docs: pdfdocs: Refactor config for CJK document") - e291ff6f5a03 ("docs: pdfdocs: Add CJK-language-specific font settings") - 7eb368cc319b ("docs: pdfdocs: Choose Serif font as CJK mainfont if possible") - 35382965bdd2 ("docs: pdfdocs: Preserve inter-phrase space in Korean translations") - 77abc2c230b1 ("docs: pdfdocs: One-half spacing for CJK translations") - 788d28a25799 ("docs: pdfdocs: Permit AutoFakeSlant for CJK fonts") - 29ac9822358f ("docs: pdfdocs: Teach xeCJK about character classes of quotation marks") - 7c5c18bdb656 ("docs: pdfdocs: Fix typo in CJK-language specific font settings") - aa872e0647dc ("docs: pdfdocs: Adjust \headheight for fancyhdr") - 8716ef413aa5 ("docs: pdfdocs: Tweak width params of TOC") - 66939df53948 ("docs: pdfdocs: Switch default CJK font to KR variants") - 7b686a2ea1e4 ("docs: pdfdocs: Enable CJKspace in TOC for Korean titles") - 5d9158e3c762 ("docs/translations: Skip CJK contents if suitable fonts not found") - b774cc46313b ("docs: pdfdocs: Move CJK monospace font setting to main conf.py") [1]: https://lore.kernel.org/all/87zgmr66cn.fsf@meer.lwn.net/ Suggested-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Akira Yokosawa <akiyks@gmail.com> Link: https://lore.kernel.org/r/aaa9dca1-27c0-c414-77f3-c5587db0cc5b@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-02-18 14:11:17 +00:00
% -*- 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
\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{1.8em}%
\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}{1.8em}{3.2em}}
\renewcommand*\l@subsection{\@dottedtocline{2}{5em}{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.
\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}{
% This is needed for translations
\usepackage{xeCJK}
\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]
\xeCJKDeclareCharClass{HalfLeft}{`“,`}
\xeCJKDeclareCharClass{HalfRight}{`”,`}
% CJK Language-specific font choices
\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]
\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]
\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]
\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
\newcommand{\kerneldocCJKon}{\makexeCJKactive\onehalfspacing}
\newcommand{\kerneldocCJKoff}{\makexeCJKinactive\singlespacing}
\newcommand{\kerneldocBeginSC}{%
\begingroup%
\scmain%
\xeCJKDeclareCharClass{FullLeft}{`“,`}%
\xeCJKDeclareCharClass{FullRight}{`”,`}%
\renewcommand{\CJKrmdefault}{SCserif}%
\renewcommand{\CJKsfdefault}{SCsans}%
\renewcommand{\CJKttdefault}{SCmono}%
\xeCJKsetup{CJKspace = false}%
% For CJK ascii-art alignment
\setmonofont{Noto Sans Mono CJK SC}[AutoFakeSlant]%
}
\newcommand{\kerneldocEndSC}{\endgroup}
\newcommand{\kerneldocBeginTC}{%
\begingroup%
\tcmain%
\xeCJKDeclareCharClass{FullLeft}{`“,`}%
\xeCJKDeclareCharClass{FullRight}{`”,`}%
\renewcommand{\CJKrmdefault}{TCserif}%
\renewcommand{\CJKsfdefault}{TCsans}%
\renewcommand{\CJKttdefault}{TCmono}%
\xeCJKsetup{CJKspace = false}%
% For CJK ascii-art alignment
\setmonofont{Noto Sans Mono CJK TC}[AutoFakeSlant]%
}
\newcommand{\kerneldocEndTC}{\endgroup}
\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}
\newcommand{\kerneldocBeginJP}{%
\begingroup%
\jpmain%
\renewcommand{\CJKrmdefault}{JPserif}%
\renewcommand{\CJKsfdefault}{JPsans}%
\renewcommand{\CJKttdefault}{JPmono}%
\xeCJKsetup{CJKspace = false}%
% 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 (Dummy)
\newcommand{\kerneldocCJKon}{}
\newcommand{\kerneldocCJKoff}{}
\newcommand{\kerneldocBeginSC}[1]{%
\begin{sphinxadmonition}{note}{Note:}
``Noto Sans CJK'' fonts are not found while building this PDF\@.
Translations of zh\_CN, zh\_TW, ko\_KR, and ja\_JP are skipped.
\end{sphinxadmonition}}
\newcommand{\kerneldocEndSC}{}
\newcommand{\kerneldocBeginTC}[1]{}
\newcommand{\kerneldocEndTC}{}
\newcommand{\kerneldocBeginKR}[1]{}
\newcommand{\kerneldocEndKR}{}
\newcommand{\kerneldocBeginJP}[1]{}
\newcommand{\kerneldocEndJP}{}
}