Thank you Aditya!
This solved my mwe:
-- Print items
for index, item in ipairs(items) do
-- Generate a unique buffer name using the loop index
local buffer_name = "buffer_" .. index
-- Write the item to the buffer
context.tobuffer(buffer_name, item)
-- Retrieve and print the buffer content
context.getbuffer{buffer_name}
end
On 9 Apr 2026, at 11:01, Aditya Mahajan wrote:
On Thu, 9 Apr 2026, Emanuel Han wrote:
Sorry, some autocorrection of the mail program modified my
copy-pasted mwe in my previous mail. I post it again here, this time
not modified:
Here is MWE showing what is going wrong:
\starttext
\startluacode
local str = "\\startstackingsteps[1] ABC \\stopstackingsteps"
context(str)
\stopluacode
\stoptext
The reason this fails is that \startstacking is effectively a buffer;
it stores everything until it sees a stopstacking and then processes
it. Such mechanisms do not work from the lua end. For example:
\starttext
\startluacode
local str = "\\startbuffer[what] ABC \\stopbuffer"
context(str)
\stopluacode
\stoptext
Ironically, a simple fix is to go via the buffer route!
\starttext
\startluacode
local str = "\\startstackingsteps[1] ABC \\stopstackingsteps"
context.tobuffer("stacking", str)
context.getbuffer{"stacking"}
\stopluacode
\stoptext
This sets the buffer "stacking" at the lua level, and the context side
only sees stuff when \getbuffer is called. Note that in the code
above, context.getbuffer{...} is a shortcut for
context.getbuffer({...}).
Aditya
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If your question is of interest to others as well, please add an entry to the
Wiki!
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