[NTG-context] Re: \luaescapestring in proper Lua

[Hans Hagen via ntg-context <ntg-context@ntg.nl>]

On 4/10/2024 7:49 PM, Pablo Rodriguez via ntg-context wrote:
> Dear list,
> 
> I have the following sample:
> 
>    \starttext
>    \startluacode
>    function document.print_the_thing(str)
>      context(str)
>    end
>    \stopluacode
> 
>    \unexpanded\def\PrintTheThing#1{%
>      \ctxlua{document.print_the_thing([[\luaescapestring{#1}]])}}
> 
>    \PrintTheThing{a \em b {c}}
>    \stoptext
> 
> I wonder whether there is a proper way in the Lua code to avoid
> [[\luaescapestring{}]] in \ctxlua.
> 
> BTW, [[\luaescapestring{}]] in \ctxlua works better for me, since in my
> real world document, I’m using str:match() to check whether the string
> ends with interrogation or exclamation marks ("%?!$").
\starttext
   \startluacode
       function document.print_the_thing()
         context(tokens.scanners.string())
       end
   \stopluacode

   \protected\def\PrintTheThing{\ctxlua{document.print_the_thing()}}

   \PrintTheThing{a \em b {\bf c} d}
\stoptext

bonus:

   test!\removepunctuation ?

Hans

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