mini vim syntax for todos

todo.vim

" This goes into ~/.vim/syntax/todo.vim
" Auto registration: $MYVIMRC << au BufRead,BufNewFile TODO set filetype=todo

if exists("b:current_syntax")
  finish
endif

" # Header
syn match headLine '\v#.*$'
" > doing
syn match progLine '^\s*>.*$'
" ! attention
syn match attnLine '^\s*!.*$'

hi def link headLine Constant
hi def link progLine Comment
hi def link attnLine Statement

let b:current_syntax = "todo"