linux/Documentation/sphinx/kerneldoc-preamble.sty
Akira Yokosawa b86f46d5ce docs: pdfdocs: Add space for chapter counts >= 100 in TOC
It turns out that networking.pdf has exceeded 100 chapters and
titles of chapters >= 100 collide with their counts in its table
of contents (TOC).

Increase relevant params by 0.6em in the preamble to avoid such
ugly collisions.

While at it, fix a typo in comment (subsection).

Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Link: https://lore.kernel.org/r/bdb60ba3-7813-47d0-74f9-7c31dd912d95@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-05-17 13:41:26 -06:00

227 lines
9.1 KiB
TeX
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

% -*- 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}{}
}