---input---
123 0123456789
0xabcdef0123456789 0XABCDEF
1e2
3e+4
5e-6
7E8
9E+0
1E-2
3.
4.56
.789

---tokens---
'123'         Literal.Number.Integer
' '           Text
'0123456789'  Literal.Number.Integer
'\n'          Text

'0x'          Keyword.Type
'abcdef0123456789' Literal.Number.Hex
' '           Text
'0X'          Keyword.Type
'ABCDEF'      Literal.Number.Hex
'\n'          Text

'1e2'         Literal.Number.Float
'\n'          Text

'3e+4'        Literal.Number.Float
'\n'          Text

'5e-6'        Literal.Number.Float
'\n'          Text

'7E8'         Literal.Number.Float
'\n'          Text

'9E+0'        Literal.Number.Float
'\n'          Text

'1E-2'        Literal.Number.Float
'\n'          Text

'3.'          Literal.Number.Float
'\n'          Text

'4.56'        Literal.Number.Float
'\n'          Text

'.789'        Literal.Number.Float
'\n'          Text