There is a (or more than one?) Vim plugin with fairly good support. However, it is not Vim. Most of the common Vim operations work but others are broken. For e

There is a (or more than one?) Vim plugin with fairly good support. However, it is not Vim. Most of the common Vim operations work but others are broken. For example, I've found the weirdest bugs when using visual block, especially in column mode. It just completely mangles everything.