How to define a TeX logic function with a boolean returned from a Lua function and \edef fixed value

How to define a TeX logic function with a boolean returned from a Lua function and \edef fixed value

[DesdeChaves]

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Dear sirs,

Is there a way to compare, in TeX environment,  a value returned from a lua
function with a TeX variable?

Please see this code:

\def\aleatorioValue{
\startlua
local nu = math.random(1,10);
if nu<5 return 1 else return 0 end
\stoplua
}

\edef\controlValue{1}
\edef\inferior{Number too small \\}
\edef\superior{Number too big \\}

\def\myfunction{\ifx\aleatorioValue\controlValue\inferior\else\superior\fi}


\starttext

\dorecurse{20}{\myfunction}

\stoptext

Thanks a lot. Have a nice day

Jorge

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Re: How to define a TeX logic function with a boolean returned from a Lua function and \edef fixed value

[Hans Hagen]

On 1/18/2017 4:29 PM, DesdeChaves wrote:
>
> Dear sirs,
>
> Is there a way to compare, in TeX environment,  a value returned from a
> lua function with a TeX variable?
>
> Please see this code:
>
> \def\aleatorioValue{
> \startlua
> local nu = math.random(1,10);
> if nu<5 return 1 else return 0 end
> \stoplua
> }
>
> \edef\controlValue{1}
> \edef\inferior{Number too small \\}
> \edef\superior{Number too big \\}
>
> \def\myfunction{\ifx\aleatorioValue\controlValue\inferior\else\superior\fi}
>
>
> \starttext
>
> \dorecurse{20}{\myfunction}
>
> \stoptext

\def\aleatorioValue{%
     \ctxlua{context(math.random(1,10) < 5 and 1 or 0)}%
}

\def\aleatorioValue{%
     \cldcontext{math.random(1,10) < 5 and 1 or 0}%
}

\edef\controlValue{1}
\edef\inferior{Number too small \\}
\edef\superior{Number too big \\}

\def\myfunction{\ifnum\aleatorioValue=\controlValue\relax\inferior\else\superior\fi}



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