Download: http://archive.info-mac.org/dev/card/null-set-11.hqx
Nullset is a trio of Hypercard externals that handle the null character.
Null is ascii 0, and is treated inconsistently by Hypercard, which
sometimes sees it as a space, and sometimes sees it as an end of file
marker. If you don't know what a null is or why you would need to deal
with it, you don't need Nullset.
