[Dev-luatex] [PATCH] Allow literal # in argument text by escaping

[luigi scarso]

On Sun, May 26, 2019 at 3:36 PM Marcel Fabian Krüger <tex at 2krueger.de>
wrote:

> Hi,
>
> inspired by [a recent TeX.sx question][1] this allows delimited macros
> with `#` in the parameter text by doubling the `#`.
> It isn't needed that often but it is useful if you try to analyze the
> parameter text of a TeX macro using TeX code. Also it is completely
> backward-compatible (`##` always triggers an error without this) and
> it is very easy to implement.
>
> For example:
>
> \def\test#1###2{(#1)[#2]}
> \test hello#{world}
>
> would result in (hello)[world]
>
> Best regards,
> Marcel Krüger
>
>
hm, context mkiv already has the "named parameters"
eg
\def\doflushparallel#instance#status#line#label#content% called at lua end
  {\begingroup
   \def\currentparallelinstance{#instance}%
   \def\currentparallelnumber  {#status}%
   \def\currentparallelline    {#line}%
   \def\currentparallellabel   {#label}%
   \def\currentparallelcontent {#content}% can be kep at the lua end .. no
need to use a virtual file
   \ifcase#status\relax
     \expandafter\buff_parallel_flush_nop
   \or
     \expandafter\buff_parallel_flush_yes
   \fi
   \endgroup}

(see buff-par.mkvi )

Perhaps one can play with a named parameter as kind of separator.

-- 
luigi
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