russell@unturf.com
99ac93b2d5
- Perl: use Text::QRCode (pure Perl, pre-installed) instead of Imager::QRCode - Elixir: try Erlang :qrcode module, fallback to CLI - OCaml: use Unix.open_process_in (no ctypes in compiled mode) - Fortran: direct C FFI binding (requires -lqrencode at link)
14 lines
541 B
Elixir
14 lines
541 B
Elixir
# Use Erlang's :qrcode module (pre-cached via rebar3)
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# Falls back to shell if module not available
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try do
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{:ok, qr} = :qrcode.encode("unsandbox-qr-ok")
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# qr is a tuple like {:qrcode, version, ecc, dimension, data}
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{_tag, _version, _ecc, dimension, _data} = qr
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IO.puts("QR:unsandbox-qr-ok:ROWS:#{dimension}")
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rescue
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_ ->
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# Fallback: use qrencode CLI
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{output, 0} = System.cmd("sh", ["-c", "qrencode -t ASCII -m 0 'unsandbox-qr-ok' | wc -l"])
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rows = String.trim(output)
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IO.puts("QR:unsandbox-qr-ok:ROWS:#{rows}")
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end
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