{assign var=foo value="bar"}
{foo bar = 40}

----------------------------------------------------

[
	["smarty", [
		["delimiter", "{"],
		["function", "assign"],
		["attr-name", [
			"var",
			["operator", "="],
			["variable", "foo"]
		]],
		["attr-name", [
			"value",
			["operator", "="]
		]],
		["string", "\"bar\""],
		["delimiter", "}"]
	]],
	["smarty", [
		["delimiter", "{"],
		["function", "foo"],
		["attr-name", [
			"bar ",
			["operator", "="]
		]],
		["number", "40"],
		["delimiter", "}"]
	]]
]

----------------------------------------------------

Checks for attributes.