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%%
%% This is file `lua-ul.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% lua-ul.dtx (with options: `package')
%%
%% Copyright (C) 2020 by Marcel Krueger
%%
%% This file 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. The latest version of this license is in:
%%
%% http://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.
\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage
{lua-ul}
[2020/03/12 v0.0.1 Underlining and related functionality for LuaTeX]
\ifx\directlua\undefined
\PackageError{lua-ul}{LuaLaTeX required}%
{Lua-UL requires LuaLaTeX.
Maybe you forgot to switch the engine in your editor?}
\fi
\directlua{require'lua-ul'}
\RequirePackage{xparse}
\newif\ifluaul@predefined
\newif\ifluaul@soulnames
\luaul@predefinedtrue
\DeclareOption{minimal}{\luaul@predefinedfalse}
\DeclareOption{soul}{\luaul@soulnamestrue}
\ProcessOptions\relax
\protected\def\luaul@maybedefineuse#1#2{%
\unless\ifcsname#1\endcsname
\expandafter\xdef\csname#1\endcsname{#2}%
\fi
\csname#1\endcsname
}
\NewDocumentCommand\newunderlinetype{mO{\luaul@defaultcontext}m}{%
\newcommand#1{}% "Reserve" the name
\protected\def#1{%
\expandafter\luaul@maybedefineuse
\expanded{{\csstring#1@@#2}}%
{\LuaULSetUnderline
\LuaULNewUnderlineType\hbox{#3\hskip0pt}%
}}%
}
\ifluaul@predefined
\newcommand\luaul@defaultcontext{%
\number\dimexpr1ex
@\unless\ifx\undefined\LuaCol@Attribute
\the\LuaCol@Attribute
\fi
}
\newunderlinetype\@underLine%
{\leaders\vrule height -.65ex depth .75ex}
\newcommand\underLine[1]{{\@underLine#1}}
\newunderlinetype\@strikeThrough%
{\leaders\vrule height .55ex depth -.45ex}
\newcommand\strikeThrough[1]{{\@strikeThrough#1}}
\newunderlinetype\@highLight[\number\dimexpr1ex]%
{\color{yellow}\leaders\vrule height 1.75ex depth .75ex}
\newcommand\highLight[1]{{\@highLight#1}}
\ifluaul@soulnames
\let\textul\underLine \let\ul\textul
\let\textst\strikeThrough \let\st\textst
\let\texthl\highLight \let\hl\texthl
\fi
\fi
%%
%%
%% End of file `lua-ul.sty'.
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