I wish it is that simple, but alas, I need to 
to inform \typefile of the font as well, 
possibly via setuptyping ?

The following works with texlive 2017 (pdflatex), meaning I have the fonts installed.
I also ran 
$ mtxrun --script font --reload 

\documentclass{article}
\usepackage[T1]{fontenc}
\usepackage{CJKutf8}
\usepackage[english]{babel}

\begin{document}
\begin{CJK}{UTF8}{mj}
  이 FAQ 은 자주 반복되는 질문과 그에 대한 대답을 간단명료한 양식으로
  모아 엮어졌습니다.
\end{CJK}
\end{document}





On Tue, Dec 5, 2017 at 9:43 PM, luigi scarso <luigi.scarso@gmail.com> wrote:
On Tue, Dec 5, 2017 at 9:32 PM, Wim Neimeijer <wneimeijer@gmail.com> wrote:
> I am writing a manual where I include code snippets with typefile. Some of
> the code snippets contain text in Japanese
> but don't appear in the PDF document as typefile seems to skip the Japanese
> characters
>
> MWE
>
> file cjk.asy
> ========
> Label L;
> L = Label("\\begin{CJK}{UTF8}{gbsn}{\\CJKfamily{gbsn}여보세요  \\end{CJK}");
> label(L);
> shipout();
>
> main file
> =======
> \starttext
> \typefile[C][]{cjk.asy}
> \stoptext

Assuming a font with the glyphs needed, this should work:
\starttext
\typefile{cjk.asy}
\stoptext


--
luigi
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