---input---
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---tokens---
'123'         Literal.Number.Integer
' '           Text
'-'           Operator
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'0'           Literal.Number.Integer
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'.5'          Literal.Number.Float
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'1.'          Literal.Number.Float
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'-'           Operator
'.5'          Literal.Number.Float
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'11.2e-3'     Literal.Number.Float
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'5.6_7'       Literal.Number.Float
' '           Text
'5.67'        Literal.Number.Float
'_'           Name
'\n'          Text
