Hello.
I am experimenting with courious things in LuaTeX (combining TeX and Lua
codes) and I have a problem with lua strings containing TeX definitions.
When string (containing definition of TeX macro with \directlua call-in)
is creating in the separate lua file (reading by command dofile) then
script does work OK, but when string is inside \startluacode
\stopluacode environment, then does work only when
i use text string inside ' ' for example:
luastring='\\def\\texmacro\#1\{\\directlua\{luafunction(\#1)\}\}'
Script does not work when i use text inside [[ ... ]]!
(message undefined control sequence)
for example:
luastring=[[
\def\texmacro#1{
\directlua{luafunction(#1)}
}
]]
Where is a problem? Is there any solutions with [[ ... ]]
Thanx Jaroslav
============================================
Here are all functioning scripts:
1) all in one file:
\startluacode
function luafunction(num)
if num==nil then num = 1 end
for i=1,num do
tex.sprint(i..') Hello\\par ')
end
end
luastring='\\def\\texmacro\#1\{\\directlua\{luafunction(\#1)\}\}'
tex.sprint(luastring)
\stopluacode
\def\texmacrotwo#1{
\directlua{luafunction(#1)}
\par
}
\starttext
\texmacro{7}
\texmacrotwo{10}
\stoptext
=====================================================
2) Script in two separates files:
%this is file ulet.tex :
\directlua{dofile("ulet.lua")}
\def\texmacrotwo#1{
\directlua{luafunction(#1)}
\par
}
\starttext
\texmacro{7}
\texmacrotwo{10}
\stoptext
And here is content of external file ulet.lua:
function luafunction(num)
for i=1,num do
tex.sprint(i..[[) Hello\par]])
end
end
luastring=[[
\def\texmacro#1{
\directlua{luafunction(#1)}
}
]]
tex.sprint(luastring)
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