% echo "\r{" | ./run.sh
lua: attempt to get length of a nil value
stack traceback:
[C]: in function 'table.unpack'
./djot/inline.lua:615: in method 'get_matches'
./djot/block.lua:612: in method 'get_inline_matches'
./djot/block.lua:182: in method 'close'
./djot/block.lua:786: in for iterator 'for iterator'
./djot/ast.lua:807: in function 'djot.ast.to_ast'
./djot.lua:35: in function <./djot.lua:33>
(...tail calls...)
bin/main.lua:86: in main chunk
[C]: in ?