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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}
[2020/07/13 v0.1.0 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
}
\newcommand\luaul@defaultcontext{%
\number\dimexpr1ex
@\unless\ifx\undefined\LuaCol@Attribute
\the\LuaCol@Attribute
\fi
}
\NewDocumentCommand\newunderlinetype
{ E{*}{{}} m O{\luaul@defaultcontext} m }{%
\newcommand#2{}% "Reserve" the name
\protected\def#2{%
\expandafter\luaul@maybedefineuse
\expanded{{\csstring#2@@#3}}%
{\LuaULSetUnderline
\LuaULNewUnderlineType#1{#4\hskip0pt}%
}}%
}
\ifluaul@predefined
\newcommand\luaul@highlight@color{yellow}
\def\luaul@@setcolor\xcolor@#1#2{}
\newcommand\luaul@setcolor[1]{%
\ifx\XC@getcolor\undefined
\def\luaul@highlight@currentcolor{#1}%
\else
\begingroup
\XC@getcolor{#1}\luaul@tmpcolor
\expanded{\endgroup
\def\noexpand\luaul@highlight@currentcolor{%
\expandafter\luaul@@setcolor\luaul@tmpcolor}}%
\fi
}
\NewDocumentCommand\LuaULSetHighLightColor{om}{%
\edef\luaul@highlight@color{\IfValueTF{#1}{[#1]{#2}}{#2}}%
}
\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@%
\luaul@highlight@currentcolor]%
{%
\ifx\XC@getcolor\undefined
\color{\luaul@highlight@currentcolor}%
\else
\expandafter\XC@undeclaredcolor\luaul@highlight@currentcolor
\fi
\leaders\vrule height 1.75ex depth .75ex
}
\newcommand\highLight[2][\luaul@highlight@color]{{%
\luaul@setcolor{#1}%
\@highLight#2%
}}
\ifluaul@soulnames
\let\textul\underLine \let\ul\textul
\let\textst\strikeThrough \let\st\textst
\let\texthl\highLight \let\hl\texthl
\fi
\fi
\ifx \reset@font \normalfont
\let \reset@font \relax
\DeclareRobustCommand \reset@font {%
\normalfont
\LuaULResetUnderline*%
}
\else
\MakeRobust \reset@font
\begingroup
\expandafter \let
\expandafter \helper
\csname reset@font \endcsname
\expandafter \endgroup
\expandafter \gdef
\csname reset@font \expandafter \endcsname
\expandafter {%
\helper%
\LuaULResetUnderline*%
}
\fi
%%
%%
%% End of file `lua-ul.sty'.
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