---input---
:sym_bol
:あ
:question?
:"symbol"

---tokens---
':sym_bol'    Literal.String.Symbol
'\n'          Text.Whitespace

':あ'          Literal.String.Symbol
'\n'          Text.Whitespace

':question?'  Literal.String.Symbol
'\n'          Text.Whitespace

':"'          Literal.String.Symbol
'symbol'      Literal.String.Symbol
'"'           Literal.String.Symbol
'\n'          Text.Whitespace