tree aef8f8c476e0814c357ead6248a614fb0ca07eac
parent 464658b16a1a539fd590e1696bfcfb572a77fe13
author Roberto Ierusalimschy <roberto@inf.puc-rio.br> 1520438138 -0300
committer Roberto Ierusalimschy <roberto@inf.puc-rio.br> 1520438138 -0300

new experimental syntax using reserved word 'undef'