Gerion Entrup schrieb am 25.01.2024 um 09:18:
Hi,
I want to make a proper definition of a new command to be able to
process it in Lua. I found something on StackOverflow [1] but that
breaks in enumeration _and_ when interaction is enabled and I do not
understand why? Can you give me some help here?
I want to make commands like \foo{bla} and \foo[b]{bla} possible at the
same time. Here is a minimal example (also attached):
```
\startluacode
function userdata.my_command(keywords, text)
commands.writestatus("test", string.format("text: %s, config: %s",
text, keywords))
local cfg = utilities.parsers.settings_to_hash(keywords)
if cfg['emph'] ~= nil then
context("\\emph{" .. text .. "}")
elseif cfg['bold'] ~= nil then
context("\\bold{" .. text .. "}")
else
context(text)
end
end
\stopluacode
\startluacode
function userdata.my_command(keywords, text)
local keywords = utilities.parsers.settings_to_hash(keywords)
if keywords['emph'] then
context.emph(text)
elseif keywords['bold'] then
context.bold(text)
else
context(text)
end
end
\stopluacode
% without that line there is no problem
\setupinteraction[state=start]
\defineenumeration[enu][text=Enu]
\defineenumeration[enu][text=Enu,title=yes]
\unprotect
\def\mc{\dosingleempty\do_my_command}
\def\do_my_command[#1]#2{%
\iffirstargument{%
\ctxlua{userdata.my_command('#1', [==[#2]==])}%
}\else {%
\ctxlua{userdata.my_command('', [==[#2]==])}%
}\fi
}
\protect
\tolerant\protected\def\mc[#1]#2%
{\ctxlua{userdata.my_command("#1","#2")}}
Wolfgang
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