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-rw-r--r--doc/luaotfload-context.tex457
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diff --git a/doc/luaotfload-context.tex b/doc/luaotfload-context.tex
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+% macros=mkvi
+%% Copyright (C) 2009-2014
+%%
+%% by Elie Roux <elie.roux@telecom-bretagne.eu>
+%% and Khaled Hosny <khaledhosny@eglug.org>
+%% and Philipp Gesang <philipp.gesang@alumni.uni-heidelberg.de>
+%%
+%% This file is part of Luaotfload.
+%%
+%% Home: https://github.com/lualatex/luaotfload
+%% Support: <lualatex-dev@tug.org>.
+%%
+%% Luaotfload is under the GPL v2.0 (exactly) license.
+%%
+%% ----------------------------------------------------------------------------
+%%
+%% Luaotfload is free software; you can redistribute it and/or
+%% modify it under the terms of the GNU General Public License
+%% as published by the Free Software Foundation; version 2
+%% of the License.
+%%
+%% Luaotfload is distributed in the hope that it will be useful,
+%% but WITHOUT ANY WARRANTY; without even the implied warranty of
+%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+%% GNU General Public License for more details.
+%%
+%% You should have received a copy of the GNU General Public License
+%% along with Luaotfload; if not, see <http://www.gnu.org/licenses/>.
+%%
+%% ----------------------------------------------------------------------------
+%%
+
+\unprotect
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% layout and paper
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\setuppapersize [A5] [A5] %% 148×210
+
+\definelayout [mainlayout] [
+ backspace=15mm, %% 133
+ textwidth=103mm,
+ topspace=15mm,
+]
+
+\setuplayout [mainlayout]
+
+\setuppagenumbering [location=,alternative=doublesided]
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% colors
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\usecolors [x11]
+\definecolor [primarycolor] [dodgerblue4]
+\definecolor [secondarycolor] [goldenrod4]
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% interaction
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\setupinteraction [
+ state=start,
+ page=no,
+ click=yes,
+ style=italic,
+ color=primarycolor,
+ contrastcolor=secondarycolor,
+ title={The Luaotfload package},
+ subtitle={OpenType layout system for Plain TeX and LaTeX},
+ author={Elie Roux & Khaled Hosny & Philipp Gesang},
+ keywords={luatex, lualatex, unicode, opentype},
+]
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% fonts
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\usemodule [simplefonts]
+
+\definefontfeature [default] [default] [mode=base,liga=yes,dlig=yes,tlig=yes,onum=yes]
+\definefontfeature [monospace] [liga=no,tlig=no,onum=no]
+
+\definefontfamily [mainface] [serif] [Linux Libertine O] [features=default]
+%\definefontfamily [mainface] [serif] [Liberation Serif] [feature=default]
+%\definefontfamily [mainface] [sans] [Iwona] [feature=default]
+\definefontfamily [mainface] [sans] [Iwona Medium] [
+ feature=default,
+ it=file:IwonaMedium-Italic.otf,
+ tf=file:IwonaMedium-Regular.otf,
+ bf=file:Iwona-Bold.otf,
+ bi=file:Iwona-BoldItalic.otf,
+]
+%definefontfamily [mainface] [sans] [DejaVu Sans] [feature=default]
+\definefontfamily [mainface] [mono] [Liberation Mono] [scale=0.85,features=monospace]
+
+\setupbodyfont [mainface,10pt]
+
+\def \LUA {Lua}
+\def \LUALATEX {Lua\LATEX}
+\def \OpenType {\identifier{Open\kern-.25ex Type}}
+
+\definealternativestyle [emphasis:texmacro] [\ss \it \letterbackslash] [\ss \it \letterbackslash]
+\definealternativestyle [emphasis:identifier] [\ss] [\ss]
+\definealternativestyle [emphasis:normal] [\sl] [\sl]
+\definealternativestyle [emphasis:abbrev] [{\feature [+][smallcaps]}] [{\feature [+][smallcaps]}]
+\definealternativestyle [emphasis:Largefont] [{\switchtobodyfont[14pt]}] [{\switchtobodyfont[14pt]}]
+\definealternativestyle [emphasis:smallcaps] [{\feature [+][smallcaps]}] [{\feature [+][smallcaps]}]
+%definealternativestyle [emphasis:nonproportional] [\mono] [\mono]
+\definealternativestyle [emphasis:nonproportional] [\tt] [\tt]
+\definealternativestyle [head:section] [{\roman\feature[+][smallcaps]}] [{\roman\feature[+][smallcaps]}]
+\definealternativestyle [head:subsection] [{\roman\feature[+][smallcaps]}] [{\roman\feature[+][smallcaps]}]
+\definealternativestyle [head:subsubsection] [{\roman\feature[+][smallcaps]}] [{\roman\feature[+][smallcaps]}]
+\definealternativestyle [typing:luafunction] [\italic] [\italic]
+\definealternativestyle [typing:fileent] [\tt] [\tt]
+
+\definehighlight [texmacro] [style=emphasis:texmacro] %% cs
+\definehighlight [identifier] [style=emphasis:identifier] %% names
+\definehighlight [abbrev] [style=emphasis:abbrev] %% acronyms
+\definehighlight [emphasis] [style=emphasis:normal] %% level 1 emph
+
+\definehighlight [Largefont] [style=emphasis:Largefont] %% font size
+\definehighlight [smallcaps] [style=emphasis:smallcaps] %% font feature
+\definehighlight [nonproportional] [style=emphasis:nonproportional] %% font switch
+
+\definetype [fileent] [style=typing:fileent]
+\definetype [luafunction] [style=typing:luafunction]
+\setuptyping [style=ttx]
+
+\definebodyfontenvironment [8pt]
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% headings
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\setuphead [section] [style=head:section, alternative=inmargin]
+\setuphead [subsection] [style=head:subsection, alternative=inmargin]
+\setuphead [subsubsection] [style=head:subsubsection,alternative=inmargin]
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% running headers
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\setupheadertexts
+ [{\tfx \getmarking[section]}] [pagenumber]
+ [pagenumber] [{\tfx \fileent{Luaotfload} Manual}]
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% structurals
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+%% section
+\def \beginsection {\dosingleempty \section_begin_indeed}
+
+\def \section_begin_indeed [#ref]#title{%
+ \iffirstargument
+ \startsection [reference=#ref,title=#title]%
+ \else
+ \startsection [title=#title]%
+ \fi
+}
+
+\let \endsection \stopsection
+
+%% subsection
+\def \beginsubsection {\dosingleempty \section_begin_indeed}
+
+\def \subsection_begin_indeed [#ref]#title{%
+ \iffirstargument
+ \startsubsection [reference=#ref,title=#title]%
+ \else
+ \startsubsection [title=#title]%
+ \fi
+}
+
+\let \endsubsection \stopsection
+
+%% subsubsection
+\def \beginsubsubsection {\dosingleempty \section_begin_indeed}
+
+\def \subsubsection_begin_indeed [#ref]#title{%
+ \iffirstargument
+ \startsubsubsection [reference=#ref,title=#title]%
+ \else
+ \startsubsubsection [title=#title]%
+ \fi
+}
+
+\let \endsubsubsection \stopsection
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% inline verbatim
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+%% Context offers both \type{…} and \type<<…>>, but not an unbalanced
+%% one that we could map directly onto Latex’s \verb|…|.
+
+\definetype [inlinecode] [style=emphasis:nonproportional]
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% codelistings
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% Now *that’s* what I call easy.
+
+\unexpanded \def \beginlisting {%
+ \grabbufferdatadirect{listing}{beginlisting}{endlisting}%
+}
+
+\unexpanded \def \endlisting {\typebuffer [listing]}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% enumerations and lists
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\definedescription [descriptionitem] [
+ align=right,
+ alternative=hanging,
+ width=2em,
+]
+
+\def \begindescriptions {%
+ \begingroup
+ \def \beginnormalitem ##1\endnormalitem{%
+ \startitem##1\stopitem
+ }
+ \let \endnormalitem \relax
+ \let \beginaltitem \startdescriptionitem
+ \let \endaltitem \stopdescriptionitem
+}
+
+\let \enddescriptions \endgroup
+
+
+\definedescription [definitionitem] [
+ align=right,
+ alternative=hanging,
+]
+
+\def \begindefinitions {%
+ \begingroup
+ \def \beginnormalitem ##1\endnormalitem{%
+ \startitem##1\stopitem
+ }
+ \let \endnormalitem \relax
+ \let \beginaltitem \startdefinitionitem
+ \let \endaltitem \stopdefinitionitem
+}
+
+\let \enddefinitions \endgroup
+
+
+\definedescription [filelistitem] [
+ align=normal,
+ alternative=hanging,
+ headstyle=typing:fileent,
+ width=4cm,
+]
+
+\def \beginfilelist {%
+ \begingroup
+ \def \beginnormalitem ##1\endnormalitem{%
+ \startitem##1\stopitem
+ }
+ \let \endnormalitem \relax
+ \let \beginaltitem \startfilelistitem
+ \let \endaltitem \stopfilelistitem
+}
+
+\let \endfilelist \endgroup
+
+\definedescription [functionlistitem] [
+ align=normal,
+ alternative=hanging,
+ headstyle=typing:luafunction,
+ width=4cm,
+]
+
+\def \beginfunctionlist {%
+ \begingroup
+ \def \beginnormalitem ##1\endnormalitem{%
+ \startitem##1\stopitem
+ }
+ \let \endnormalitem \relax
+ \let \beginaltitem \startfunctionlistitem
+ \let \endaltitem \stopfunctionlistitem
+}
+
+\let \endfunctionlist \endgroup
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% columns
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\def \begindoublecolumns {\startcolumns [2]}
+\let \enddoublecolumns \stopcolumns
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% alignment
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\setupnarrower [before={\blank[line]},after={\blank[line]}]
+\let \beginnarrower \startnarrower
+\let \endnarrower \stopnarrower
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% special elements
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\def \meta #1{<{\italic #1}>}
+
+\def \beginabstractcontent {%
+ \grabbufferdatadirect{abstractcontent}{beginabstractcontent}{endabstractcontent}%
+}
+
+\let \endabstractcontent \relax
+
+\def \setdocumenttitle #1{\setvalue {document_title}{#1}}
+\def \setdocumentdate #1{\setvalue {document_date}{#1}}
+\def \setdocumentauthor #1{\setvalue {document_author}{#1}}
+
+\let \typesetdocumenttitle \relax
+\let \beginfrontmatter \relax
+
+\def \endfrontmatter {
+ \startstandardmakeup
+ \vfill
+ \strut \hfill
+ \startframed [frame=off,align=middle,width=.5\textwidth]
+ \Largefont{\getvalue {document_title}}
+ \stopframed
+ \hfill \strut \par
+
+ \blank [2*big]
+
+ \strut \hfill
+ \startframed [frame=off,align=middle,width=.65\textwidth]
+ \setuplocalinterlinespace [18pt]
+ \getvalue {document_author}
+ \stopframed
+ \hfill \strut \par
+
+ \vfill
+ \strut \hfill \getvalue {document_date} \hfill \strut
+ \blank [2*big]
+
+ \strut \hfill
+ \startframed [width=.7\textwidth,align=normal,style=tfx,frame=off]%
+ \getbuffer [abstractcontent]
+ \stopframed
+ \hfill \strut
+ \stopstandardmakeup
+}
+
+\let \typesetcontent \completecontent
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% floats
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% XXX we can improve on this part later
+
+\usemodule [vim]
+\definevimtyping [bnf] [syntax=bnf]
+\definefloat [syntax] [figure]
+
+\def \beginsyntaxfloat #reference#caption{%
+ \begingroup
+ \edef \currentreference {#reference}%
+ \edef \currentcaption {#caption}%
+ \grabbufferdatadirect{rawsyntaxdata}{beginsyntaxfloat}{endsyntaxfloat}%
+}
+
+\def \endsyntaxfloat {%
+ \savebuffer [rawsyntaxdata] [rawsyntaxdata]
+ \startplacesyntax [
+ reference=\currentreference,
+ title={\currentcaption},
+ ]
+ %% there’s no \typebnfbuffer in t-vim :(
+ \typebnffile {\jobname-rawsyntaxdata.tmp}
+ \stopplacesyntax
+ \endgroup%
+}
+
+\def \figurefloat #reference#caption#file{%
+ \startplacefigure [
+ reference=#reference,
+ title={#caption},
+ ]
+ \externalfigure [#file] [width=\textwidth]
+ \stopplacefigure
+}
+
+
+\def \tablefloat #reference#caption#content{%
+ \startplacetable [
+ reference=#reference,
+ title={#caption},
+ ]
+ #content
+ \stopplacetable
+}
+
+
+%% tables
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% tables
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\setupxtable [frame=off,option=stretch,textwidth=\dimexpr(\textwidth/2)]
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% hyperlinks and references
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\unexpanded \def \hyperlink{%
+ \dosingleempty \hyperlink_indeed%
+}
+
+\def \hyperlink_indeed [#text]#url{%
+ \iffirstargument
+ \useURL [temporary_url] [#url] [] [#text]%
+ \else
+ \useURL [temporary_url] [#url]%
+ \fi%
+ \from [temporary_url]%
+}
+
+
+\def \email #1{\goto{#1}[url(mailto:#1)]}
+
+\def \label #tag{\reference [#tag]\empty}
+\def \pageref #tag{\at{page}{#tag}}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% escaped characters
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\let \charpercent \letterpercent
+\let \charbackslash \letterbackslash
+\let \chartilde \lettertilde
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% main
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\protect
+
+\newif \ifcontextmkiv \contextmkivtrue
+
+\starttext
+ \input luaotfload-main.tex
+\stoptext
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-23 05:22:18 +0000