---input---
⟨1_.0__1_,10_000,_1⟩

---tokens---
'⟨'           Punctuation
'1_.0__1_'    Literal.Number
','           Punctuation
'10_000'      Literal.Number
','           Punctuation
'_1'          Name.Attribute
'⟩'           Punctuation
'\n'          Text.Whitespace
