mustache/vim-mustache-handlebars — pull request #12 by hail2u (2014-01-10 20:17:38+00:00)
Title: Support inverted sections

From mustache(5):

> An inverted section begins with a caret (hat) and ends with a slash.
> That is `{{^person}}` begins a "person" inverted section while
> `{{/person}}` ends it.