Re: [NTG-context] Using lua to define a macro with one optional parameter in brackets

8 Jul 2015


      Thanks Taco,
your solution helped me ... Based on initial tests, it seems that it 
works correctly. I'll know more after thorough testing.
Once again, thank you many times.
Sincerely Jaroslav Hajtmar


Dne 8. 7. 2015 v 12:07 Taco Hoekwater napsal(a):
...
...
On 08 Jul 2015, at 11:05, Jaroslav Hajtmar  wrote:
Hello ConTeXist.
Within the one very complex problem I need to solve the following case. I want using lua code to define a macro with one optional parameter in brackets.
Simplest solution I know is this:
\startluacode
interfaces.definecommand ('dolastname', {
     arguments = { { "option", "string" }  },
     macro = function (opt_1)
        if #opt_1>0 then context(opt_1) else context('nothing') end
     end
})
interfaces.definecommand ('lastname', {
     macro = function ()
        context.dosingleempty()
        context.dolastname()
     end
})
\stopluacode
Best wishes,
Taco