[Dev-luatex] variable

Bruno Le Floch blflatex at gmail.com
Tue Mar 6 04:43:43 CET 2018


On 03/05/2018 12:00 PM, Hans Hagen wrote:
> On 3/5/2018 5:08 PM, and at linux.pl wrote:
>> Hello,
>>
>> Anybody know how I can set variable in tex?
>>
>> For example
>>
>> \count10=20
>> \def\proste{To jest prosty napis}
>>   a\directlua{tex.print(tex.count[10]+5)}b
>>   a\directlua{tex.set("\proste","Trudne")}b
>> \proste
>> \bye
>>
>> I need setup \proste definition to my own string
>>
>> How I can read TeX variable \mynumber from lua
>> and set variable \mynumber on TeX but set in lua script.
> 
> \starttext
> 
> \newcount\MyCount \MyCount = 20
> 
> \def\MyMacro{To jest prosty napis}
> 
> a\directlua{tex.print(tex.getcount("MyCount")+5)}b
> 
> a\directlua{token.set_macro("MyMacro","Trudne")}b
> 
> \MyMacro
> 
> \stoptext
> 
> 

Interestingly, token.set_macro allows defining macros whose replacement
text has unbalanced braces.

\directlua{token.set_macro("MyMacro", "\string{")}
\expandafter\show\MyMacro
\bye

Bruno



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