---input---
[section]
    key1=value1
    key2=value2

---tokens---
'[section]'   Keyword
'\n    '      Text.Whitespace
'key1'        Name.Attribute
'='           Operator
'value1'      Literal.String
'\n    '      Text.Whitespace
'key2'        Name.Attribute
'='           Operator
'value2'      Literal.String
'\n'          Text.Whitespace