On 11/17/2025 8:38 PM, Henning Hraban Ramm wrote:
Am 17.11.25 um 20:17 schrieb Henning Hraban Ramm:
Hi again,
I thought I’d include a “GiroCode” (https://en.wikipedia.org/wiki/
EPC_QR_code) in our publishing house’s invoices.
While \qrcode[text=something] works, I’d like to use a Lua call, but I
didn’t understand the code (meta-imp-qrcodes.mkxl) far enough.
I don’t need colors, but the code must include CR characters (\n),
since EPC is defined as a multi-line dataset; the TeX macro converts
them to spaces (\par is deleted).
Arrgh, me stupid:
One learns best from self-discovering (assuming you could resist asking
some chatty ai).
context.qrcode{text=[[BCD
002
1
SCT
…
]]}
works.
Sorry for the noise.\startTEXpage
Real low level:
\startTEXpage
\startluacode
context(figures.qrcode(
"this also works",
-- "darkgray",
tex.sp("4cm")
))
\stopluacode
\stopTEXpage
a metapost variant is described in the upcoming MAPS.
Hans
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