return {
	-- Matches: a URL in parens: (URL)
	{
		regex = "\\((\\w+://\\S+)\\)",
		format = "$1",
		highlight = 1,
	},
	-- Matches: a URL in brackets: [URL]
	{
		regex = "\\[(\\w+://\\S+)\\]",
		format = "$1",
		highlight = 1,
	},
	-- Matches: a URL in curly braces: {URL}
	{
		regex = "\\{(\\w+://\\S+)\\}",
		format = "$1",
		highlight = 1,
	},
	-- Matches: a URL in angle brackets: <URL>
	{
		regex = "<(\\w+://\\S+)>",
		format = "$1",
		highlight = 1,
	},
	-- Then handle URLs not wrapped in brackets
	{
		-- Before
		--regex = '\\b\\w+://\\S+[)/a-zA-Z0-9-]+',
		--format = '$0',
		-- After
		regex = "[^(]\\b(\\w+://\\S+[)/a-zA-Z0-9-]+)",
		format = "$1",
		highlight = 1,
	},
	-- implicit mailto link
	{
		regex = "\\b\\w+@[\\w-]+(\\.[\\w-]+)+\\b",
		format = "mailto:$0",
	},
}