[XeTeX] ^^J in the plain XeTeX format

[Joseph Wright]

On 05/05/2014 08:05, Joseph Wright wrote:
> Hello all,
> 
> Doing some experiments on writing to the log, I find that the XeTeX
> format shows different behaviour from other formats with respect to ^^J.
> Trying
> 
>     \immediate\write-1{Hello^^Jworld}
>     \bye
> 
> with pdfTeX or LuaTeX gives two lines in the log
> 
>     Hello
>     world
> 
> but with XeTeX gives
> 
>     Hello^^Jworld
> 
> LaTeX and ConTeXt (MkII) show identical behaviour for XeTeX and pdfTeX
> (and LuaTeX in the LaTeX case).
> 
> Anyone know why this is, and if it's deliberate?

Further to this, I note that the plain format doesn't set \newlinechar
^^J, so Knuth's TeX gives the same behaviour as XeTeX. Arguably
therefore an issue with pdfTeX/LuaTeX: will raise in appropriate place(s).
-- 
Joseph Wright