{0xBadFace}
{42}
{3.14159}
{4e7}
{5.4E-3}
{2.0e+10}

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

[
	["smarty", [
		["delimiter", "{"],
		["number", "0xBadFace"],
		["delimiter", "}"]
	]],
	["smarty", [
		["delimiter", "{"],
		["number", "42"],
		["delimiter", "}"]
	]],
	["smarty", [
		["delimiter", "{"],
		["number", "3.14159"],
		["delimiter", "}"]
	]],
	["smarty", [
		["delimiter", "{"],
		["number", "4e7"],
		["delimiter", "}"]
	]],
	["smarty", [
		["delimiter", "{"],
		["number", "5.4E-3"],
		["delimiter", "}"]
	]],
	["smarty", [
		["delimiter", "{"],
		["number", "2.0e+10"],
		["delimiter", "}"]
	]]
]

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

Checks for numbers.