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authorKarl Berry <karl@freefriends.org>2019-11-30 22:18:23 +0000
committerKarl Berry <karl@freefriends.org>2019-11-30 22:18:23 +0000
commit4b5127164d0e1d685bfd39748c2df3dd613040e1 (patch)
tree90694ae7975d2ced844b8912c6101013cd058ae9 /Master/texmf-dist/source
parent08ba638847461b32675823280b8f14cd17d99860 (diff)
luacolor (30nov19)
git-svn-id: svn://tug.org/texlive/trunk@52984 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Master/texmf-dist/source')
-rw-r--r--Master/texmf-dist/source/latex/luacolor/luacolor.dtx1244
1 files changed, 1244 insertions, 0 deletions
diff --git a/Master/texmf-dist/source/latex/luacolor/luacolor.dtx b/Master/texmf-dist/source/latex/luacolor/luacolor.dtx
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+% \iffalse meta-comment
+%
+% File: luacolor.dtx
+% Version: 2019/11/29 v1.13
+% Info: Color support via LuaTeX's attributes
+%
+% Copyright (C)
+% 2007, 2009-2011 Heiko Oberdiek
+% 2016-2019 Oberdiek Package Support Group
+% https://github.com/ho-tex/luacolor/issues
+%
+% This work may be distributed and/or modified under the
+% conditions of the LaTeX Project Public License, either
+% version 1.3c of this license or (at your option) any later
+% version. This version of this license is in
+% https://www.latex-project.org/lppl/lppl-1-3c.txt
+% and the latest version of this license is in
+% https://www.latex-project.org/lppl.txt
+% and version 1.3 or later is part of all distributions of
+% LaTeX version 2005/12/01 or later.
+%
+% This work has the LPPL maintenance status "maintained".
+%
+% The Current Maintainers of this work are
+% Heiko Oberdiek and the Oberdiek Package Support Group
+% https://github.com/ho-tex/luacolor/issues
+%
+% This work consists of the main source file luacolor.dtx
+% and the derived files
+% luacolor.sty, luacolor.pdf, luacolor.lua,
+%
+% Distribution:
+% CTAN:macros/latex/contrib/luacolor/luacolor.dtx
+% CTAN:macros/latex/contrib/luacolor/luacolor.pdf
+%
+% Unpacking:
+% (a) If luacolor.ins is present:
+% tex luacolor.ins
+% (b) Without luacolor.ins:
+% tex luacolor.dtx
+% (c) If you insist on using LaTeX
+% latex \let\install=y\input{luacolor.dtx}
+% (quote the arguments according to the demands of your shell)
+%
+% Documentation:
+% (a) If luacolor.drv is present:
+% latex luacolor.drv
+% (b) Without luacolor.drv:
+% latex luacolor.dtx; ...
+% The class ltxdoc loads the configuration file ltxdoc.cfg
+% if available. Here you can specify further options, e.g.
+% use A4 as paper format:
+% \PassOptionsToClass{a4paper}{article}
+%
+% Programm calls to get the documentation (example):
+% pdflatex luacolor.dtx
+% makeindex -s gind.ist luacolor.idx
+% pdflatex luacolor.dtx
+% makeindex -s gind.ist luacolor.idx
+% pdflatex luacolor.dtx
+%
+% Installation:
+% TDS:tex/latex/luacolor/luacolor.sty
+% TDS:scripts/luacolor/luacolor.lua
+% TDS:doc/latex/luacolor/luacolor.pdf
+% TDS:source/latex/luacolor/luacolor.dtx
+%
+%<*ignore>
+\begingroup
+ \catcode123=1 %
+ \catcode125=2 %
+ \def\x{LaTeX2e}%
+\expandafter\endgroup
+\ifcase 0\ifx\install y1\fi\expandafter
+ \ifx\csname processbatchFile\endcsname\relax\else1\fi
+ \ifx\fmtname\x\else 1\fi\relax
+\else\csname fi\endcsname
+%</ignore>
+%<*install>
+\input docstrip.tex
+\Msg{************************************************************************}
+\Msg{* Installation}
+\Msg{* Package: luacolor 2019/11/29 v1.13 Color support via LuaTeX's attributes (HO)}
+\Msg{************************************************************************}
+
+\keepsilent
+\askforoverwritefalse
+
+\let\MetaPrefix\relax
+\preamble
+
+This is a generated file.
+
+Project: luacolor
+Version: 2019/11/29 v1.13
+
+Copyright (C)
+ 2007, 2009-2011 Heiko Oberdiek
+ 2016-2019 Oberdiek Package Support Group
+
+This work may be distributed and/or modified under the
+conditions of the LaTeX Project Public License, either
+version 1.3c of this license or (at your option) any later
+version. This version of this license is in
+ https://www.latex-project.org/lppl/lppl-1-3c.txt
+and the latest version of this license is in
+ https://www.latex-project.org/lppl.txt
+and version 1.3 or later is part of all distributions of
+LaTeX version 2005/12/01 or later.
+
+This work has the LPPL maintenance status "maintained".
+
+The Current Maintainers of this work are
+Heiko Oberdiek and the Oberdiek Package Support Group
+https://github.com/ho-tex/luacolor/issues
+
+
+This work consists of the main source file luacolor.dtx
+and the derived files
+ luacolor.sty, luacolor.pdf, luacolor.ins, luacolor.drv,
+ luacolor-test1.tex, luacolor-test2.tex, luacolor-test3.tex,
+ luacolor.lua,
+
+\endpreamble
+\let\MetaPrefix\DoubleperCent
+
+\generate{%
+ \file{luacolor.ins}{\from{luacolor.dtx}{install}}%
+ \file{luacolor.drv}{\from{luacolor.dtx}{driver}}%
+ \usedir{tex/latex/luacolor}%
+ \file{luacolor.sty}{\from{luacolor.dtx}{package}}%
+% \usedir{doc/latex/luacolor/test}%
+% \file{luacolor-test1.tex}{\from{luacolor.dtx}{test1}}%
+% \file{luacolor-test2.tex}{\from{luacolor.dtx}{test2}}%
+% \file{luacolor-test3.tex}{\from{luacolor.dtx}{test3}}%
+ \nopreamble
+ \nopostamble
+% \usedir{source/latex/luacolor/catalogue}%
+% \file{luacolor.xml}{\from{luacolor.dtx}{catalogue}}%
+}
+\def\MetaPrefix{-- }
+\def\defaultpostamble{%
+ \MetaPrefix^^J%
+ \MetaPrefix\space End of File `\outFileName'.%
+}
+\def\currentpostamble{\defaultpostamble}%
+\generate{%
+ \usedir{scripts/luacolor}%
+% \file{oberdiek.luacolor.lua}{\from{luacolor.dtx}{lua}}%
+ \file{luacolor.lua}{\from{luacolor.dtx}{lua}}%
+}
+
+\catcode32=13\relax% active space
+\let =\space%
+\Msg{************************************************************************}
+\Msg{*}
+\Msg{* To finish the installation you have to move the following}
+\Msg{* file into a directory searched by TeX:}
+\Msg{*}
+\Msg{* luacolor.sty}
+\Msg{*}
+\Msg{* And install the following script file:}
+\Msg{*}
+\Msg{* luacolor.lua,}
+\Msg{*}
+\Msg{* To produce the documentation run the file `luacolor.dtx'}
+\Msg{* through LaTeX.}
+\Msg{*}
+\Msg{* Happy TeXing!}
+\Msg{*}
+\Msg{************************************************************************}
+
+\endbatchfile
+%</install>
+%<*ignore>
+\fi
+%</ignore>
+%<*driver>
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesFile{luacolor.drv}%
+ [2019/11/29 v1.13 Color support via LuaTeX's attributes (HO)]%
+\documentclass{ltxdoc}
+\usepackage{holtxdoc}[2011/11/22]
+\usepackage{paralist}
+\makeatletter
+\g@addto@macro\MakePrivateLetters{%
+ \@makeother\_%
+}
+\makeatother
+\begin{document}
+ \DocInput{luacolor.dtx}%
+\end{document}
+%</driver>
+% \fi
+%
+%
+% \CharacterTable
+% {Upper-case \A\B\C\D\E\F\G\H\I\J\K\L\M\N\O\P\Q\R\S\T\U\V\W\X\Y\Z
+% Lower-case \a\b\c\d\e\f\g\h\i\j\k\l\m\n\o\p\q\r\s\t\u\v\w\x\y\z
+% Digits \0\1\2\3\4\5\6\7\8\9
+% Exclamation \! Double quote \" Hash (number) \#
+% Dollar \$ Percent \% Ampersand \&
+% Acute accent \' Left paren \( Right paren \)
+% Asterisk \* Plus \+ Comma \,
+% Minus \- Point \. Solidus \/
+% Colon \: Semicolon \; Less than \<
+% Equals \= Greater than \> Question mark \?
+% Commercial at \@ Left bracket \[ Backslash \\
+% Right bracket \] Circumflex \^ Underscore \_
+% Grave accent \` Left brace \{ Vertical bar \|
+% Right brace \} Tilde \~}
+%
+% \GetFileInfo{luacolor.drv}
+%
+% \title{The \xpackage{luacolor} package}
+% \date{2019/11/29 v1.13}
+% \author{Heiko Oberdiek\thanks
+% {Please report any issues at \url{https://github.com/ho-tex/luacolor/issues}}}
+%
+% \maketitle
+%
+% \begin{abstract}
+% Package \xpackage{luacolor} implements color support based
+% on \LuaTeX's node attributes.
+% \end{abstract}
+%
+% \tableofcontents
+%
+% \section{Documentation}
+%
+% \subsection{Introduction}
+%
+% This package uses a \LuaTeX's attribute register to
+% to annotate nodes with color information.
+% If a color is set, then the attribute register
+% is set to this color and all nodes created in its scope
+% (current group) are annotated with this attribute.
+% Now the color property behaves much the same way
+% as the font property.
+%
+% \subsection{Usage}
+%
+% Package \xpackage{color} is loaded automatically by this
+% package \xpackage{luacolor}. If you need a special driver
+% option or you prefer package \xpackage{xcolor}, then load
+% it before package \xpackage{luacolor}, for example:
+% \begin{quote}
+% |\usepackage[dvipdfmx]{xcolor}|
+% \end{quote}
+% The package \xpackage{luacolor} is loaded without options:
+% \begin{quote}
+% |\usepackage{luacolor}|
+% \end{quote}
+% It is able to detect PDF mode and DVI drivers are
+% differentiated by its color specials. Therefore the
+% package do need driver options.
+%
+% Then it redefines the color setting commands to set
+% attributes instead of whatsits for color.
+%
+% At last the attribute annotations of the nodes in the
+% output box must be analyzed to insert the necessary color whatsits.
+% Currently \LuaTeX\ lacks an appropriate callback function.
+% Therefore package \xpackage{atbegshi} is used to get control
+% before a box is shipped out.
+%
+% \begin{declcs}{luacolorProcessBox} \M{box}
+% \end{declcs}
+% Macro \cs{luacolorProcessBox} processes the box \meta{box}
+% in the previously described manner. It is automatically
+% called for pages, but not for XForm objects.
+% Before passing a box to \cs{pdfxform}, call \cs{luacolorProcessBox}
+% first.
+%
+% \subsection{Limitations}
+%
+% \begin{description}
+% \item[Ligatures with different colored components:]
+% Package \xpackage{luacolor} sees the ligature after
+% the paragraph building and page breaking, when a
+% page is to be shipped out. Therefore it cannot
+% break ligatures, because the components might occupy
+% different space. Therefore it is the respondibility
+% of the ligature forming process to deal with different
+% colored glyphs that form a ligature. The user can avoid
+% the problem entirely by explicitly breaking the ligature
+% at the places where the color changes.
+% \item \dots
+% \end{description}
+%
+% \StopEventually{
+% }
+%
+% \section{Implementation}
+%
+% \begin{macrocode}
+%<*package>
+% \end{macrocode}
+%
+% \subsection{Catcodes and identification}
+%
+% \begin{macrocode}
+\begingroup\catcode61\catcode48\catcode32=10\relax%
+ \catcode13=5 % ^^M
+ \endlinechar=13 %
+ \catcode123=1 % {
+ \catcode125=2 % }
+ \catcode64=11 % @
+ \def\x{\endgroup
+ \expandafter\edef\csname LuaCol@AtEnd\endcsname{%
+ \endlinechar=\the\endlinechar\relax
+ \catcode13=\the\catcode13\relax
+ \catcode32=\the\catcode32\relax
+ \catcode35=\the\catcode35\relax
+ \catcode61=\the\catcode61\relax
+ \catcode64=\the\catcode64\relax
+ \catcode123=\the\catcode123\relax
+ \catcode125=\the\catcode125\relax
+ }%
+ }%
+\x\catcode61\catcode48\catcode32=10\relax%
+\catcode13=5 % ^^M
+\endlinechar=13 %
+\catcode35=6 % #
+\catcode64=11 % @
+\catcode123=1 % {
+\catcode125=2 % }
+\def\TMP@EnsureCode#1#2{%
+ \edef\LuaCol@AtEnd{%
+ \LuaCol@AtEnd
+ \catcode#1=\the\catcode#1\relax
+ }%
+ \catcode#1=#2\relax
+}
+\TMP@EnsureCode{34}{12}% "
+\TMP@EnsureCode{39}{12}% '
+\TMP@EnsureCode{40}{12}% (
+\TMP@EnsureCode{41}{12}% )
+\TMP@EnsureCode{42}{12}% *
+\TMP@EnsureCode{43}{12}% +
+\TMP@EnsureCode{44}{12}% ,
+\TMP@EnsureCode{45}{12}% -
+\TMP@EnsureCode{46}{12}% .
+\TMP@EnsureCode{47}{12}% /
+\TMP@EnsureCode{58}{12}% :
+\TMP@EnsureCode{60}{12}% <
+\TMP@EnsureCode{62}{12}% >
+\TMP@EnsureCode{91}{12}% [
+\TMP@EnsureCode{93}{12}% ]
+\TMP@EnsureCode{95}{12}% _ (other!)
+\TMP@EnsureCode{96}{12}% `
+\edef\LuaCol@AtEnd{\LuaCol@AtEnd\noexpand\endinput}
+% \end{macrocode}
+%
+% Package identification.
+% \begin{macrocode}
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesPackage{luacolor}%
+ [2019/11/29 v1.13 Color support via LuaTeX's attributes (HO)]
+% \end{macrocode}
+%
+% \subsection{Check for \LuaTeX}
+%
+% Without \LuaTeX\ there is no point in using this package.
+% \begin{macrocode}
+\RequirePackage{infwarerr}[2010/04/08]%
+\RequirePackage{iftex}[2019/11/07]%
+\RequirePackage{ltxcmds}[2011/04/18]%
+\RequirePackage{color}
+% \end{macrocode}
+% require ltluatex rather than luatex package support for \LuaTeX\ allocations.
+% \begin{macrocode}
+\ifluatex
+ \ifx\newattribute\@undefined
+ \RequirePackage{ltluatex}%
+ \fi
+\else
+ \@PackageError{luacolor}{%
+ This package may only be run using LuaTeX%
+ }\@ehc
+ \expandafter\LuaCol@AtEnd
+\fi%
+% \end{macrocode}
+%
+% \begin{macro}{\LuaCol@directlua}
+% \begin{macrocode}
+ \let\LuaCol@directlua\directlua
+% \end{macrocode}
+% \end{macro}
+%
+% \subsection{Check for disabled colors}
+%
+% \begin{macrocode}
+\ifcolors@
+\else
+ \@PackageWarningNoLine{luacolor}{%
+ Colors are disabled by option `monochrome'%
+ }%
+ \def\set@color{}%
+ \def\reset@color{}%
+ \def\set@page@color{}%
+ \def\define@color#1#2{}%
+ \expandafter\LuaCol@AtEnd
+\fi%
+% \end{macrocode}
+%
+% \subsection{Load module and check version}
+%
+% \begin{macrocode}
+\LuaCol@directlua{%
+ require("luacolor")%
+}
+% \end{macrocode}
+% \begin{macrocode}
+\begingroup
+ \edef\x{\LuaCol@directlua{tex.write("2019/11/29 v1.13")}}%
+ \edef\y{%
+ \LuaCol@directlua{%
+ if oberdiek.luacolor.getversion then %
+ oberdiek.luacolor.getversion()%
+ end%
+ }%
+ }%
+ \ifx\x\y
+ \else
+ \@PackageError{luacolor}{%
+ Wrong version of lua module.\MessageBreak
+ Package version: \x\MessageBreak
+ Lua module: \y
+ }\@ehc
+ \fi
+\endgroup
+% \end{macrocode}
+%
+% \subsection{Find driver}
+%
+% \begin{macrocode}
+\ifpdf
+\else
+ \begingroup
+ \def\current@color{}%
+ \def\reset@color{}%
+ \setbox\z@=\hbox{%
+ \begingroup
+ \set@color
+ \endgroup
+ }%
+ \edef\reserved@a{%
+ \LuaCol@directlua{%
+ oberdiek.luacolor.dvidetect()%
+ }%
+ }%
+ \ifx\reserved@a\@empty
+ \@PackageError{luacolor}{%
+ DVI driver detection failed because of\MessageBreak
+ unrecognized color \string\special
+ }\@ehc
+ \endgroup
+ \expandafter\expandafter\expandafter\LuaCol@AtEnd
+ \else
+ \@PackageInfoNoLine{luacolor}{%
+ Type of color \string\special: \reserved@a
+ }%
+ \fi%
+ \endgroup
+\fi
+% \end{macrocode}
+%
+% \subsection{Attribute setting}
+%
+% \begin{macro}{\LuaCol@Attribute}
+% \begin{macrocode}
+\ltx@IfUndefined{newluatexattribute}{%
+ \newattribute\LuaCol@Attribute
+}{%
+ \newluatexattribute\LuaCol@Attribute
+}
+\ltx@IfUndefined{setluatexattribute}{%
+ \let\LuaCol@setattribute\setattribute
+}{%
+ \let\LuaCol@setattribute\setluatexattribute
+}
+\LuaCol@directlua{%
+ oberdiek.luacolor.setattribute(\number\allocationnumber)%
+}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\set@color}
+% \begin{macrocode}
+\protected\def\set@color{%
+ \LuaCol@setattribute\LuaCol@Attribute{%
+ \LuaCol@directlua{%
+ oberdiek.luacolor.get("\luaescapestring{\current@color}")%
+ }%
+ }%
+}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\reset@color}
+% \begin{macrocode}
+\def\reset@color{}
+% \end{macrocode}
+% \end{macro}
+%
+% \subsection{Whatsit insertion}
+%
+% \begin{macro}{\luacolorProcessBox}
+% \begin{macrocode}
+\def\luacolorProcessBox#1{%
+ \LuaCol@directlua{%
+ oberdiek.luacolor.process(\number#1)%
+ }%
+}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macrocode}
+\RequirePackage{atbegshi}[2011/01/30]
+\AtBeginShipout{%
+ \luacolorProcessBox\AtBeginShipoutBox
+}
+% \end{macrocode}
+%
+% Set default color.
+% \begin{macrocode}
+\set@color
+% \end{macrocode}
+%
+% \subsection{\cs{pdfxform} support}
+%
+% \begin{macrocode}
+\ifpdf
+ \ifx\pdfxform\@undefined
+ \let\pdfxform\saveboxresource
+ \fi
+ \ltx@IfUndefined{pdfxform}{%
+ \directlua{%
+ tex.enableprimitives('',{%
+ 'pdfxform','pdflastxform','pdfrefxform'%
+ })%
+ }%
+ }{}%
+ \ltx@IfUndefined{protected}{%
+ \directlua{tex.enableprimitives('',{'protected'})}%
+ }{}%
+ \ltx@IfUndefined{pdfxform}{%
+ \@PackageWarning{luacolor}{\string\pdfxform\space not found}%
+ }{%
+ \let\LuaCol@org@pdfxform\pdfxform
+ \begingroup\expandafter\expandafter\expandafter\endgroup
+ \expandafter\ifx\csname protected\endcsname\relax
+ \@PackageWarning{luacolor}{\string\protected\space not found}%
+ \else
+ \expandafter\protected
+ \fi
+ \def\pdfxform{%
+ \begingroup
+ \afterassignment\LuaCol@pdfxform
+ \count@=%
+ }%
+ \def\LuaCol@pdfxform{%
+ \luacolorProcessBox\count@
+ \LuaCol@org@pdfxform\count@
+ \endgroup
+ }%
+ }%
+\fi
+% \end{macrocode}
+%
+% \begin{macrocode}
+\LuaCol@AtEnd%
+%</package>
+% \end{macrocode}
+%
+% \subsection{Lua module}
+%
+% \begin{macrocode}
+%<*lua>
+% \end{macrocode}
+% Box zero contains a \cs{hbox} with the color \cs{special}.
+% That is analyzed to get the prefix for the color setting
+% \cs{special}.
+% \begin{macrocode}
+oberdiek = oberdiek or {}
+local luacolor = oberdiek.luacolor or {}
+oberdiek.luacolor = luacolor
+% \end{macrocode}
+% \begin{macro}{getversion()}
+% \begin{macrocode}
+function luacolor.getversion()
+ tex.write("2019/11/29 v1.13")
+end
+% \end{macrocode}
+% \end{macro}
+%
+% \subsubsection{Driver detection}
+%
+% \begin{macrocode}
+local ifpdf = tonumber(tex.outputmode or tex.pdfoutput) > 0
+local prefix
+local prefixes = {
+ dvips = "color ",
+ dvipdfm = "pdf:sc ",
+ truetex = "textcolor:",
+ pctexps = "ps::",
+}
+local patterns = {
+ ["^color "] = "dvips",
+ ["^pdf: *begincolor "] = "dvipdfm",
+ ["^pdf: *bcolor "] = "dvipdfm",
+ ["^pdf: *bc "] = "dvipdfm",
+ ["^pdf: *setcolor "] = "dvipdfm",
+ ["^pdf: *scolor "] = "dvipdfm",
+ ["^pdf: *sc "] = "dvipdfm",
+ ["^textcolor:"] = "truetex",
+ ["^ps::"] = "pctexps",
+}
+% \end{macrocode}
+% \begin{macro}{info()}
+% \begin{macrocode}
+local function info(msg, term)
+ local target = "log"
+ if term then
+ target = "term and log"
+ end
+ texio.write_nl(target, "Package luacolor info: " .. msg .. ".")
+ texio.write_nl(target, "")
+end
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{dvidetect()}
+% \begin{macrocode}
+function luacolor.dvidetect()
+ local v = tex.box[0]
+ assert(v.id == node.id("hlist"))
+ for v in node.traverse_id(node.id("whatsit"), v.head) do
+ if v and v.subtype == node.subtype("special") then
+ local data = v.data
+ for pattern, driver in pairs(patterns) do
+ if string.find(data, pattern) then
+ prefix = prefixes[driver]
+ tex.write(driver)
+ return
+ end
+ end
+ info("\\special{" .. data .. "}", true)
+ return
+ end
+ end
+ info("Missing \\special", true)
+end
+% \end{macrocode}
+% \end{macro}
+%
+% \subsubsection{Color strings}
+%
+% \begin{macrocode}
+local map = {
+ n = 0,
+}
+% \end{macrocode}
+% \begin{macro}{get()}
+% \begin{macrocode}
+function luacolor.get(color)
+ tex.write("" .. luacolor.getvalue(color))
+end
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{getvalue()}
+% \begin{macrocode}
+function luacolor.getvalue(color)
+ local n = map[color]
+ if not n then
+ n = map.n + 1
+ map.n = n
+ map[n] = color
+ map[color] = n
+ end
+ return n
+end
+% \end{macrocode}
+% \end{macro}
+%
+% \subsubsection{Attribute register}
+%
+% \begin{macro}{setattribute()}
+% \begin{macrocode}
+local attribute
+function luacolor.setattribute(attr)
+ attribute = attr
+end
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{getattribute()}
+% \begin{macrocode}
+function luacolor.getattribute()
+ return attribute
+end
+% \end{macrocode}
+% \end{macro}
+%
+% \subsubsection{Whatsit insertion}
+%
+% \begin{macrocode}
+local LIST = 1
+local LIST_LEADERS = 2
+local LIST_DISC = 3
+local COLOR = 4
+local RULE = node.id("rule")
+local node_types = {
+ [node.id("hlist")] = LIST,
+ [node.id("vlist")] = LIST,
+ [node.id("rule")] = COLOR,
+ [node.id("glyph")] = COLOR,
+ [node.id("disc")] = LIST_DISC,
+ [node.id("whatsit")] = {
+ [node.subtype("special")] = COLOR,
+ [node.subtype("pdf_literal")] = COLOR,
+ [node.subtype("pdf_save")] = COLOR,
+ [node.subtype("pdf_restore")] = COLOR, -- probably not needed
+-- TODO (DPC) [node.subtype("pdf_refximage")] = COLOR,
+ },
+ [node.id("glue")] =
+ function(n)
+ if n.subtype >= 100 then -- leaders
+ if n.leader.id == RULE then
+ return COLOR
+ else
+ return LIST_LEADERS
+ end
+ end
+ end,
+}
+% \end{macrocode}
+% \begin{macro}{get_type()}
+% \begin{macrocode}
+local function get_type(n)
+ local ret = node_types[n.id]
+ if type(ret) == 'table' then
+ ret = ret[n.subtype]
+ end
+ if type(ret) == 'function' then
+ ret = ret(n)
+ end
+ return ret
+end
+% \end{macrocode}
+% \end{macro}
+% \begin{macrocode}
+local mode = 2 -- luatex.pdfliteral.direct
+local WHATSIT = node.id("whatsit")
+local SPECIAL = node.subtype("special")
+local PDFLITERAL = node.subtype("pdf_literal")
+local DRY_FALSE = false
+local DRY_TRUE = true
+% \end{macrocode}
+% \begin{macro}{traverse()}
+% \begin{macrocode}
+local function traverse(list, color, dry)
+ if not list then
+ return color
+ end
+ local head
+ if get_type(list) == LIST then
+ head = list.head
+ elseif get_type(list) == LIST_DISC then
+ head = list.replace
+ else
+ texio.write_nl("!!! Error: Wrong list type: " .. node.type(list.id))
+ return color
+ end
+%<debug>texio.write_nl("traverse: " .. node.type(list.id))
+ for n in node.traverse(head) do
+%<debug>texio.write_nl(" node: " .. node.type(n.id))
+ local t = get_type(n)
+%<debug>texio.write_nl("TYPE "..tostring(t).. " "..tostring(node.type(node.getid(n))).." ".. tostring(node.getsubtype(n)))
+ if t == LIST or t == LIST_DISC then
+ color = traverse(n, color, dry)
+ elseif t == LIST_LEADERS then
+ local color_after = traverse(n.leader, color, DRY_TRUE)
+ if color == color_after then
+ traverse(n.leader, color, DRY_FALSE or dry)
+ else
+ traverse(n.leader, '', DRY_FALSE or dry)
+% The color status is unknown here, because the leader box
+% will or will not be set.
+ color = ''
+ end
+ elseif t == COLOR then
+ local v = node.has_attribute(n, attribute)
+ if v then
+ local newColor = map[v]
+ if newColor ~= color then
+ color = newColor
+ if dry == DRY_FALSE then
+ local newNode
+ if ifpdf then
+ newNode = node.new(WHATSIT, PDFLITERAL)
+ newNode.mode = mode
+ newNode.data = color
+ else
+ newNode = node.new(WHATSIT, SPECIAL)
+ newNode.data = prefix .. color
+ end
+ head = node.insert_before(head, n, newNode)
+ end
+ end
+ end
+ end
+ end
+ if get_type(list) == LIST then
+ list.head = head
+ else
+ list.replace = head
+ end
+ return color
+end
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{process()}
+% \begin{macrocode}
+function luacolor.process(box)
+ local color = ""
+ local list = tex.getbox(box)
+ traverse(list, color, DRY_FALSE)
+end
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macrocode}
+%</lua>
+% \end{macrocode}
+%
+% \section{Test}
+%
+% \begin{macrocode}
+%<*test1>
+\documentclass{article}
+\usepackage{color}
+%</test1>
+% \end{macrocode}
+% \subsection{Catcode checks for loading}
+%
+% \begin{macrocode}
+%<*test1>
+% \end{macrocode}
+% \begin{macrocode}
+\catcode`\{=1 %
+\catcode`\}=2 %
+\catcode`\#=6 %
+\catcode`\@=11 %
+\expandafter\ifx\csname count@\endcsname\relax
+ \countdef\count@=255 %
+\fi
+\expandafter\ifx\csname @gobble\endcsname\relax
+ \long\def\@gobble#1{}%
+\fi
+\expandafter\ifx\csname @firstofone\endcsname\relax
+ \long\def\@firstofone#1{#1}%
+\fi
+\expandafter\ifx\csname loop\endcsname\relax
+ \expandafter\@firstofone
+\else
+ \expandafter\@gobble
+\fi
+{%
+ \def\loop#1\repeat{%
+ \def\body{#1}%
+ \iterate
+ }%
+ \def\iterate{%
+ \body
+ \let\next\iterate
+ \else
+ \let\next\relax
+ \fi
+ \next
+ }%
+ \let\repeat=\fi
+}%
+\def\RestoreCatcodes{}
+\count@=0 %
+\loop
+ \edef\RestoreCatcodes{%
+ \RestoreCatcodes
+ \catcode\the\count@=\the\catcode\count@\relax
+ }%
+\ifnum\count@<255 %
+ \advance\count@ 1 %
+\repeat
+
+\def\RangeCatcodeInvalid#1#2{%
+ \count@=#1\relax
+ \loop
+ \catcode\count@=15 %
+ \ifnum\count@<#2\relax
+ \advance\count@ 1 %
+ \repeat
+}
+\def\RangeCatcodeCheck#1#2#3{%
+ \count@=#1\relax
+ \loop
+ \ifnum#3=\catcode\count@
+ \else
+ \errmessage{%
+ Character \the\count@\space
+ with wrong catcode \the\catcode\count@\space
+ instead of \number#3%
+ }%
+ \fi
+ \ifnum\count@<#2\relax
+ \advance\count@ 1 %
+ \repeat
+}
+\def\space{ }
+\expandafter\ifx\csname LoadCommand\endcsname\relax
+ \def\LoadCommand{\input luacolor.sty\relax}%
+\fi
+\def\Test{%
+ \RangeCatcodeInvalid{0}{47}%
+ \RangeCatcodeInvalid{58}{64}%
+ \RangeCatcodeInvalid{91}{96}%
+ \RangeCatcodeInvalid{123}{255}%
+ \catcode`\@=12 %
+ \catcode`\\=0 %
+ \catcode`\%=14 %
+ \LoadCommand
+ \RangeCatcodeCheck{0}{36}{15}%
+ \RangeCatcodeCheck{37}{37}{14}%
+ \RangeCatcodeCheck{38}{47}{15}%
+ \RangeCatcodeCheck{48}{57}{12}%
+ \RangeCatcodeCheck{58}{63}{15}%
+ \RangeCatcodeCheck{64}{64}{12}%
+ \RangeCatcodeCheck{65}{90}{11}%
+ \RangeCatcodeCheck{91}{91}{15}%
+ \RangeCatcodeCheck{92}{92}{0}%
+ \RangeCatcodeCheck{93}{96}{15}%
+ \RangeCatcodeCheck{97}{122}{11}%
+ \RangeCatcodeCheck{123}{255}{15}%
+ \RestoreCatcodes
+}
+\Test
+\csname @@end\endcsname
+\end
+% \end{macrocode}
+% \begin{macrocode}
+%</test1>
+% \end{macrocode}
+%
+% \subsection{Driver detection}
+%
+% \begin{macrocode}
+%<*test2>
+\NeedsTeXFormat{LaTeX2e}
+\ifcsname driver\endcsname
+ \expandafter\PassOptionsToPackage\expandafter{\driver}{color}%
+ \pdfoutput=0 %
+\fi
+\documentclass{minimal}
+\usepackage{luacolor}[2018/11/01]
+\csname @@end\endcsname
+\end
+%</test2>
+% \end{macrocode}
+%
+% \begin{macrocode}
+%<*test3>
+\NeedsTeXFormat{LaTeX2e}
+% \end{macrocode}
+% \begin{macrocode}
+\documentclass{minimal}
+\usepackage{luacolor}[2018/11/01]
+\usepackage{qstest}
+\IncludeTests{*}
+\LogTests{log}{*}{*}
+\makeatletter
+% \end{macrocode}
+% \begin{macrocode}
+\@@end
+%</test3>
+% \end{macrocode}
+%
+% \section{Installation}
+%
+% \subsection{Download}
+%
+% \paragraph{Package.} This package is available on
+% CTAN\footnote{\CTANpkg{luacolor}}:
+% \begin{description}
+% \item[\CTAN{macros/latex/contrib/luacolor/luacolor.dtx}] The source file.
+% \item[\CTAN{macros/latex/contrib/luacolor/luacolor.pdf}] Documentation.
+% \end{description}
+%
+%
+% \paragraph{Bundle.} All the packages of the bundle `luacolor'
+% are also available in a TDS compliant ZIP archive. There
+% the packages are already unpacked and the documentation files
+% are generated. The files and directories obey the TDS standard.
+% \begin{description}
+% \item[\CTANinstall{install/macros/latex/contrib/luacolor.tds.zip}]
+% \end{description}
+% \emph{TDS} refers to the standard ``A Directory Structure
+% for \TeX\ Files'' (\CTANpkg{tds}). Directories
+% with \xfile{texmf} in their name are usually organized this way.
+%
+% \subsection{Bundle installation}
+%
+% \paragraph{Unpacking.} Unpack the \xfile{luacolor.tds.zip} in the
+% TDS tree (also known as \xfile{texmf} tree) of your choice.
+% Example (linux):
+% \begin{quote}
+% |unzip luacolor.tds.zip -d ~/texmf|
+% \end{quote}
+%
+% \paragraph{Script installation.}
+% Check the directory \xfile{TDS:scripts/luacolor/} for
+% scripts that need further installation steps.
+%
+% \subsection{Package installation}
+%
+% \paragraph{Unpacking.} The \xfile{.dtx} file is a self-extracting
+% \docstrip\ archive. The files are extracted by running the
+% \xfile{.dtx} through \plainTeX:
+% \begin{quote}
+% \verb|tex luacolor.dtx|
+% \end{quote}
+%
+% \paragraph{TDS.} Now the different files must be moved into
+% the different directories in your installation TDS tree
+% (also known as \xfile{texmf} tree):
+% \begin{quote}
+% \def\t{^^A
+% \begin{tabular}{@{}>{\ttfamily}l@{ $\rightarrow$ }>{\ttfamily}l@{}}
+% luacolor.sty & tex/latex/luacolor/luacolor.sty\\
+% luacolor.lua & scripts/luacolor/luacolor.lua\\
+% luacolor.pdf & doc/latex/luacolor/luacolor.pdf\\
+% luacolor.dtx & source/latex/luacolor/luacolor.dtx\\
+% \end{tabular}^^A
+% }^^A
+% \sbox0{\t}^^A
+% \ifdim\wd0>\linewidth
+% \begingroup
+% \advance\linewidth by\leftmargin
+% \advance\linewidth by\rightmargin
+% \edef\x{\endgroup
+% \def\noexpand\lw{\the\linewidth}^^A
+% }\x
+% \def\lwbox{^^A
+% \leavevmode
+% \hbox to \linewidth{^^A
+% \kern-\leftmargin\relax
+% \hss
+% \usebox0
+% \hss
+% \kern-\rightmargin\relax
+% }^^A
+% }^^A
+% \ifdim\wd0>\lw
+% \sbox0{\small\t}^^A
+% \ifdim\wd0>\linewidth
+% \ifdim\wd0>\lw
+% \sbox0{\footnotesize\t}^^A
+% \ifdim\wd0>\linewidth
+% \ifdim\wd0>\lw
+% \sbox0{\scriptsize\t}^^A
+% \ifdim\wd0>\linewidth
+% \ifdim\wd0>\lw
+% \sbox0{\tiny\t}^^A
+% \ifdim\wd0>\linewidth
+% \lwbox
+% \else
+% \usebox0
+% \fi
+% \else
+% \lwbox
+% \fi
+% \else
+% \usebox0
+% \fi
+% \else
+% \lwbox
+% \fi
+% \else
+% \usebox0
+% \fi
+% \else
+% \lwbox
+% \fi
+% \else
+% \usebox0
+% \fi
+% \else
+% \lwbox
+% \fi
+% \else
+% \usebox0
+% \fi
+% \end{quote}
+% If you have a \xfile{docstrip.cfg} that configures and enables \docstrip's
+% TDS installing feature, then some files can already be in the right
+% place, see the documentation of \docstrip.
+%
+% \subsection{Refresh file name databases}
+%
+% If your \TeX~distribution
+% (\TeX\,Live, \mikTeX, \dots) relies on file name databases, you must refresh
+% these. For example, \TeX\,Live\ users run \verb|texhash| or
+% \verb|mktexlsr|.
+%
+% \subsection{Some details for the interested}
+%
+% \paragraph{Unpacking with \LaTeX.}
+% The \xfile{.dtx} chooses its action depending on the format:
+% \begin{description}
+% \item[\plainTeX:] Run \docstrip\ and extract the files.
+% \item[\LaTeX:] Generate the documentation.
+% \end{description}
+% If you insist on using \LaTeX\ for \docstrip\ (really,
+% \docstrip\ does not need \LaTeX), then inform the autodetect routine
+% about your intention:
+% \begin{quote}
+% \verb|latex \let\install=y\input{luacolor.dtx}|
+% \end{quote}
+% Do not forget to quote the argument according to the demands
+% of your shell.
+%
+% \paragraph{Generating the documentation.}
+% You can use both the \xfile{.dtx} or the \xfile{.drv} to generate
+% the documentation. The process can be configured by the
+% configuration file \xfile{ltxdoc.cfg}. For instance, put this
+% line into this file, if you want to have A4 as paper format:
+% \begin{quote}
+% \verb|\PassOptionsToClass{a4paper}{article}|
+% \end{quote}
+% An example follows how to generate the
+% documentation with pdf\LaTeX:
+% \begin{quote}
+%\begin{verbatim}
+%pdflatex luacolor.dtx
+%makeindex -s gind.ist luacolor.idx
+%pdflatex luacolor.dtx
+%makeindex -s gind.ist luacolor.idx
+%pdflatex luacolor.dtx
+%\end{verbatim}
+% \end{quote}
+%
+% \begin{History}
+% \begin{Version}{2007/12/12 v1.0}
+% \item
+% First public version.
+% \end{Version}
+% \begin{Version}{2009/04/10 v1.1}
+% \item
+% Fixes for changed syntax of \cs{directlua} in \LuaTeX\ 0.36.
+% \end{Version}
+% \begin{Version}{2010/03/09 v1.2}
+% \item
+% Adaptation for package \xpackage{luatex} 2010/03/09 v0.4.
+% \end{Version}
+% \begin{Version}{2010/12/13 v1.3}
+% \item
+% Support for \cs{pdfxform} added.
+% \item
+% Loaded package \xpackage{luatexbase-attr} recognized.
+% \item
+% Update for \hologo{LuaTeX}: `list' fields renamed to `head' in v0.65.0.
+% \end{Version}
+% \begin{Version}{2011/03/29 v1.4}
+% \item
+% Avoid whatsit insertion if option \xoption{monochrome} is used
+% (thanks Manuel P\'egouri\'e-Gonnard).
+% \end{Version}
+% \begin{Version}{2011/04/22 v1.5}
+% \item
+% Bug fix by Manuel P\'egouri\'e-Gonnard: A typo prevented the
+% detection of whatsits and applying color changes for
+% \cs{pdfliteral} and \cs{special} nodes that might contain
+% typesetting material.
+% \item
+% Bug fix by Manuel P\'egouri\'e-Gonnard: Now colors are also
+% applied to leader boxes.
+% \item
+% Unnecessary color settings are removed for leaders boxes,
+% if after the leader box the color has not changed.
+% The costs are a little runtime, leader boxes are processed twice.
+% \item
+% Additional whatsits that are colored: \texttt{pdf\_refximage}.
+% \item
+% Workaround for bug with \texttt{node.insert\_before}
+% removed for the version after \hologo{LuaTeX} 0.65, because
+% bug was fixed in 0.27. (Thanks Manuel P\'egouri\'e-Gonnard.)
+% \end{Version}
+% \begin{Version}{2011/04/23 v1.6}
+% \item
+% Bug fix for nested leader boxes.
+% \item
+% Bug fix for leader boxes that change color, but
+% are not set because of missing place.
+% \item
+% Version check for Lua module added.
+% \end{Version}
+% \begin{Version}{2011/10/22 v1.7}
+% \item
+% Lua functions \texttt{getattribute} and \texttt{getvalue}
+% added to tell other external Lua functions
+% the attribute register number for coloring.
+% \end{Version}
+% \begin{Version}{2011/11/01 v1.8}
+% \item
+% Use of \texttt{node.subtype} instead of magic numbers.
+% \end{Version}
+% \begin{Version}{2016/05/13 v1.9}
+% \item
+% More use of \texttt{node.subtype} instead of magic numbers.
+% \item luatex 85 updates
+% \end{Version}
+% \begin{Version}{2016/05/16 v1.10}
+% \item
+% Documentation updates.
+% \end{Version}
+% \begin{Version}{2018/11/22 v1.11}
+% \item
+% handle issue 43.
+% \item
+% removed pre-0.65 stuff
+% \end{Version}
+% \begin{Version}{2019/07/25 v1.12}
+% \item
+% removed uses of module function, see PR70
+% \end{Version}
+% \begin{Version}{2019/11/29 v1.13}
+% \item
+% Documentation updates.
+% \item Use \xpackage{iftex} directly.
+% \end{Version}
+% \end{History}
+%
+% \PrintIndex
+%
+% \Finale
+\endinput