'<stream start>'
block-mapping-start-token()
'?'
scalar-token(plain=#t, style=#f, value="canonical")
':'
scalar-token(plain=#t, style=#f, value="12345")
'?'
scalar-token(plain=#t, style=#f, value="decimal")
':'
scalar-token(plain=#t, style=#f, value="+12345")
'?'
scalar-token(plain=#t, style=#f, value="octal")
':'
scalar-token(plain=#t, style=#f, value="0o14")
'?'
scalar-token(plain=#t, style=#f, value="hexadecimal")
':'
scalar-token(plain=#t, style=#f, value="0xC")
block-end-token()
'<stream end>'