dohyunkim

\documentclass{article}
\usepackage{luamplib}
\begin{document}
\directlua{
  function luamplib.utf8substr (t,b,e)
    local ob = utf8.offset(t,b+1)
    local oe = utf8.offset(t,e)
    local ms = utf8.char(utf8.codepoint(t,ob,oe)):gsub('"','"&ditto&"')
    return string.format('"\csstring\%s"', ms)
  end

dohyunkim

\documentclass{article}
\usepackage{luamplib}
\begin{document}
\mpfig

u:=100; % 그리기 용도. 계산만 하려면 1.

path A, B; numeric ra, rb; pair ca, cb;
cb = (1u,9u+rb);
ca = (1u,9u-rb-ra);

dohyunkim

\documentclass{article}
\usepackage{luamplib}
\begin{document}

\directlua{
function gettablines ()
  local gap, width = 12, string.format("\csstring\%f",tex.sp'\the\linewidth'/65781.76)
  local instance = luamplib.instances['\mpfiginstancename']
  local lines = instance:get_path"lines"
  local offsets = instance:get_path"offsets"

dohyunkim

\documentclass{article}
\usepackage{fontspec}
\setmainfont{TeX Gyre Pagella}
%\setmainfont{Noto Sans CJK KR}
\usepackage{luamplib}
\mplibsetformat{metafun}
\directlua{ mplibglyph = require'mplibglyph' }
\begin{document}

\mpfig*

dohyunkim

\documentclass{article}
\usepackage{fontspec,xcolor,luamplib}
\setmainfont{tex gyre pagella}
\directlua{
  local function ol(f,_,v)
    v = tonumber(v) or 3
    v = v * f.size / 6578.176 % 3 means 0.3pt when using 10pt font
    f.width = v
    f.mode = 1
  end

dohyunkim

\documentclass{article}
\usepackage{kotex}

\newfontfeature{NoEmbedding}{noembedding}
\directlua{
  local function noembed (tfmdata)
    local properties = tfmdata.properties
    if not properties.filename then
      properties.filename = tfmdata.filename
    end

dohyunkim

\input xetexko.sty
\input ulem.sty
\catcode`@=11
\UL@hook\expandafter{\the\UL@hook
  \protected\def\dotemph#1{%
    \ifx\ \LA@space\else \UL@stop\fi
    \leavevmode
    \setbox\XeKo@dotemph@box\hbox{\raise\dotemphraise\hbox{\dotemphchar}}%
    \begingroup
    \let\XeKo@maybe@dotemph\XeKo@do@dotemph

dohyunkim

\font\ntss="Noto Sans CJK KR:mapping=tex-text;script=hang;language=KOR" at 10pt
\ntss
% xetex -no-pdf xxx.tex 한 후 dviasm 을 실행해 gid 를 알아낸다.
\setbox0\hbox{\XeTeXglyph 63116}
\rpcode\font 63116=\dimexpr100\wd0/(\fontdimen6\font/10)\relax

\XeTeXprotrudechars=2

가.

dohyunkim

\documentclass{minimal}
\chardef\XeTeXcharclassIgnore=4096
\chardef\XeTeXcharclassBoundary=4095
\newXeTeXintercharclass\XeTeXcharclassID
\newXeTeXintercharclass\XeTeXcharclassCJ
\newXeTeXintercharclass\XeTeXcharclassOP
\newXeTeXintercharclass\XeTeXcharclassCL
\newXeTeXintercharclass\XeTeXcharclassEX
\newXeTeXintercharclass\XeTeXcharclassIS
\newXeTeXintercharclass\XeTeXcharclassNS

dohyunkim

\documentclass[a4paper]{article}
\usepackage{kotex,iftex}
\defaultfontfeatures+{Renderer=OpenType}
\setmainhangulfont{Noto Sans CJK KR}[Script=Hangul, BoldFont=* Bold]
\newfontfamily\manjufont{Noto Sans Mongolian}[Script=Mongolian]
\ifluatex
  \hangulpunctuations=0
  \directlua{
    function reverselines(box)
      local t, head, curr, prevdp = {}