Add Escalate mapping

Define the `todo#Escalate()` function which does the opposite of
`todo#Descalate()` and add a mapping to invoke the function.

1 files changed, 14 insertions, 0 deletions

diff --git a/autoload/todo.vim b/autoload/todo.vim
index 926f1e7..758d0d5 100644
--- a/autoload/todo.vim
+++ b/autoload/todo.vim
@@ -1,4 +1,18 @@
 function! todo#Escalate()
+	let todo = getline('.')
+
+	" First non-whitespace character
+	let col = match(todo, '\S')
+
+	let priority = todo[col]
+
+	if priority ==# '_'
+		let todo = substitute(todo, '_', '-', '')
+	elseif priority ==# '-'
+		let todo = substitute(todo, '-', '!', '')
+	endif
+
+	call setline(line('.'), todo)
 endfunction