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---
foo: 0xBadFace
bar: 0o754
baz: 42
foo: 3.14159
bar: 4e8
baz: 3.1E-7
foo: 0.4e+2
bar: -0xFF
baz: +0o123
----------------------------------------------------
[
["punctuation", "---"],
["key", "foo"], ["punctuation", ":"],
["number", "0xBadFace"],
["key", "bar"], ["punctuation", ":"],
["number", "0o754"],
["key", "baz"], ["punctuation", ":"],
["number", "42"],
["key", "foo"], ["punctuation", ":"],
["number", "3.14159"],
["key", "bar"], ["punctuation", ":"],
["number", "4e8"],
["key", "baz"], ["punctuation", ":"],
["number", "3.1E-7"],
["key", "foo"], ["punctuation", ":"],
["number", "0.4e+2"],
["key", "bar"], ["punctuation", ":"],
["number", "-0xFF"],
["key", "baz"], ["punctuation", ":"],
["number", "+0o123"]
]
----------------------------------------------------
Checks for numbers.