[NTG-context] Optimal way to defining of macros in Luacode in ConTeXt

12 Jul 2011

      Hello ConTeXist.

How best (optimally) in Lua code in ConTeXt define own ConTeXt macros?

I was used recently LuaTeX syntax (for example) :
tex.sprint(tex.ctxcatcodes,'\\def\\mymacro\{arg of mymacro\}')

But someone advised me that I use the better syntax:
context('\\def\\Mymacro\{arg of mymacro\}')
or context("\\def\\test#1{#1}") etc...

Exist other (best or most optimal) way to do?

for example something like:
context.def.mymacro("first arg", "sec arg:") (which of course does not 
work ...)

Thanx Jaroslav

My example:

\startluacode

function ar2rom(arnum) -- Convert Arabic numbers to Roman. Used for 
"numbering" column in the TeX macros
       local romans = {{1000, "M"},
           {900, "CM"}, {500, "D"}, {400, "CD"}, {100, "C"},
           {90, "XC"}, {50, "L"}, {40, "XL"}, {10, "X"},
           {9, "IX"}, {5, "V"}, {4, "IV"}, {1, "I"} }
       local romnum=''
       for _, v in ipairs(romans) do -- create of the Roman numbers
         val, let = unpack(v)
         while arnum >= val do
           arnum = arnum - val
           romnum=romnum..let
         end
       end
       return romnum
end

for i = 1, 10 do
   tex.sprint(tex.ctxcatcodes,'\\def\\macro'..ar2rom(i)..'\{macro 
'..i..'\}')
   context('\\def\\Macro'..ar2rom(i)..'\{Macro '..i..'\}')
end

tex.sprint(tex.ctxcatcodes,'\\def\\mymacro\{arg of mymacro\}')
context('\\def\\Mymacro\{arg of Mymacro\}')

\stopluacode

\starttext

\macroI, \MacroI

\macroII, \MacroII

etc ...

\macroIX, \MacroIX

\macroX, \MacroX

\Mymacro, \mymacro

\stoptext

[NTG-context] Optimal way to defining of macros in Luacode in ConTeXt

Jaroslav Hajtmar