May
14
MacVim vs YAML
Recent builds of MacVim (23 to 26, at least) contain a broken YAML syntax file. You need to replace it with this one: yaml.vim.
It goes in $VIMRUNTIME/syntax, which normally resolves to /Applications/MacVim.app/Contents/Resources/vim/runtime/syntax — but you can run :echo $VIMRUNTIME in MacVim to be sure.