call of string.match() inside \ctxlua{}

call of string.match() inside \ctxlua{}

[DesdeChaves]

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Dear Sirs

A have a string where I need to extract one number. But every time I run
this code I found this error message: [ctxlua]:1: unfinished string near
<eof>

\usemodule[scancsv]

\def\licann#1{% #1 - lesson number with strings
    \ctxlua{parsedate=thirddata.scancsv.ParseCSVLine('#1','n.º');%
     local Nlic=(parsedate[2]);%
   Nlic=tonumber(string.match(Nlic, '%d+'));%
     context(Nlic ~=0 and 1 or  0)}}

\starttext

\licann{"lesson nº456Alterada"}

\stoptext


thanks in advance

Have a nice day

jorge

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Re: call of string.match() inside \ctxlua{}

[Hans Hagen]

On 1/19/2017 5:03 PM, DesdeChaves wrote:
> Dear Sirs
>
> A have a string where I need to extract one number. But every time I run
> this code I found this error message: [ctxlua]:1: unfinished string near
> <eof>
>
> \usemodule[scancsv]
>
> \def\licann#1{% #1 - lesson number with strings
>     \ctxlua{parsedate=thirddata.scancsv.ParseCSVLine('#1','n.º');%
>      local Nlic=(parsedate[2]);%
>    Nlic=tonumber(string.match(Nlic, '%d+'));%

%d -> \letterpercent d

>      context(Nlic ~=0 and 1 or  0)}}
>
> \starttext
>
> \licann{"lesson nº456Alterada"}
>
> \stoptext
>
>
> thanks in advance

\startluacode
     function document.Licann(s)
         local d = string.match(s,"^.-nº(%d+)")
         local n = tonumber(d)
         context(n ~= 0 and 1 or  0)
     end
\stopluacode

\def\licann#1{\ctxlua{document.Licann([[#1]])}}



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