% lua-widow-control % https://github.com/gucci-on-fleek/lua-widow-control % SPDX-License-Identifier: MPL-2.0+ % SPDX-FileCopyrightText: 2022 Max Chernoff \wlog{lua-widow-control v2.0.5} %%version \ifx\directlua\undefined \errmessage{% LuaTeX is required for this package. Make sure to compile with `luatex'% } \fi \catcode`@=11 \input ltluatex % \LuaTeX{}Base \clubpenalty=1 \widowpenalty=1 \displaywidowpenalty=1 \brokenpenalty=1 \newdimen\lwcemergencystretch \lwcemergencystretch=3em \newcount\lwcmaxcost \lwcmaxcost=2147483647 \directlua{require "lua-widow-control"} % Here, we enable font expansion/contraction. It isn't strictly necessary for % \lwc/'s functionality; however, it is required for the % lengthened paragraphs to not have terrible spacing. \expandglyphsinfont\the\font 20 20 5 \adjustspacing=2 % Define \TeX{} wrappers for Lua functions \def\lwcenable{\directlua{lwc.enable_callbacks()}} \def\lwcdisable{\directlua{lwc.disable_callbacks()}} \def\iflwc{\directlua{lwc.if_lwc_enabled()}} % Enable \lwc/ by default when the package is loaded. \lwcenable % Expansion of some parts of the document, such as section headings, is quite % undesirable, so we'll disable \lwc/ for certain commands. % We should only reenable \lwc/ at the end if it was already enabled. \newcount\lwc@disable@count \def\lwc@patch@pre{% \iflwc% \advance\lwc@disable@count by 1% \lwcdisable% \fi% } \def\lwc@patch@post{ \ifnum\lwc@disable@count>0% \lwcenable% \advance\lwc@disable@count by -1% \fi } \def\lwc@extractcomponents #1:#2->#3\STOP{% \def\lwc@params{#2}% \def\lwc@body{#3}% } \def\lwcdisablecmd#1{% \ifdefined#1% \expandafter\lwc@extractcomponents\meaning#1\STOP% \begingroup% \catcode`@=11% \expanded{% \noexpand\scantokens{% \gdef\noexpand#1\lwc@params{% \noexpand\lwc@patch@pre\lwc@body\noexpand\lwc@patch@post% }% }% }% \endgroup% \fi% } \begingroup \suppressoutererror=1 \lwcdisablecmd{\beginsection} % Sectioning \endgroup \catcode`@=12 \endinput