manifest_navigator_candidates_by_contents = function()
	local filter = Manifest_navigator.filter:lower()
	if filter == '' then
		return Manifest
	end
	local result = {}
	-- We can only search definitions that have source code
	for def in pairs(Definitions) do
		local contents = Definitions[def].data
		for _,line in ipairs(contents) do
			if line:lower():find(filter) then
				table.insert(result, def)
				break
			end
		end
	end
	return result
end

manifest_navigator_candidates_by_name = function()
	local filter = Manifest_navigator.filter:lower()
	if filter == '' then
		return Manifest
	end
	local result = {}
	for _,def in ipairs(Manifest) do
		if def:lower():find(filter) then
			table.insert(result, def)
		end
	end
	return result
end

	-- draw a border around the current viewport
	table.insert(Surface, {type='rectangle', drawmode='fill', x=saved_viewport.x, y=saved_viewport.y, w=saved_viewport.w, h=saved_viewport.h, r=0,g=0,b=0,a=0.2})
	-- Things go very bad if the canvas gets too large.
	-- Even though it's in memory, LÖVE seems to use memory in the graphics card to write graphics to it.
	-- If the canvas is too big to fit in graphics card memory, you get an unrecoverable error.
	-- So I try to keep it from getting too large. But with a hard-coded constant because
	-- I don't know how to measure how much graphics memory a computer has.
	-- It might not protect older computers.
	-- This is the place to experiment with if you run into an error about SDL limits and contacting Kartik.
	local w = math.min(16000, Global_viewport.w)
	local h = math.min(16000, Global_viewport.h)

	-- keep fields sync'd with definition of Manifest_navigator
	Manifest_navigator = {
		show = false,
		filter_full_text = false,
		for_delete = false,
		reload = false,
		num_lines = nil,
		index = 1,
		filter = '',
		bottom_y = nil,
	}
	Manifest_navigator.candidates = Manifest
	Manifest_navigator.num_lines = num_lines_for_manifest_navigator(Manifest_navigator.candidates)
end

	if Manifest_navigator.filter_full_text then
		return manifest_navigator_candidates_by_contents()
	else
		return manifest_navigator_candidates_by_name()
	end

	show = false,  -- display navigator on screen
	filter_full_text = false,  -- if true, show matching definition contents rather than names
	for_delete = false,  -- if true, delete selected definition from navigator on enter
}
	reload = false,  -- if true, refresh manifest to display on next keystroke
	num_lines = nil,  -- number of screen lines of space to devote to the navigator
	index = 1,  -- where the cursor is right now. Modified on arrow keys, reset on any non-arrow keystroke.
	filter = '',  -- prefix being typed into the command palette

	add_hotkey_to_menu('ctrl+o: switch file')

	add_hotkey_to_menu('ctrl+l ctrl+n ctrl+d: load/new/delete definition')
	add_hotkey_to_menu('ctrl+s: search all definitions')
	add_hotkey_to_menu('ctrl+f: find in definition')

	add_hotkey_to_menu('ctrl+f: find')
	add_hotkey_to_menu('ctrl+left ctrl+right: prev/next word')

end

		love.graphics.setColor(obj.r or 0, obj.g or 0, obj.b or 0)

		love.graphics.setColor(obj.r or 0, obj.g or 0, obj.b or 0, obj.a or 1)

		love.graphics.setColor(obj.r or 0, obj.g or 0, obj.b or 0, obj.a or 1)

end
		Manifest_navigator.show = true
		initialize_manifest_navigator()
	elseif chord == 'C-s' then
		Manifest_navigator.show = true
		Manifest_navigator.filter_full_text = true

end