---input---
package main

import "fmt"

func main() {
    世界 := "Hello, world!"
    さようなら := "Goodbye, world!"
    fmt.Println(世界)
    fmt.Println(さようなら)
}

---tokens---
'package'     Keyword.Namespace
' '           Text
'main'        Name.Other
'\n'          Text

'\n'          Text

'import'      Keyword.Namespace
' '           Text
'"fmt"'       Literal.String
'\n'          Text

'\n'          Text

'func'        Keyword.Declaration
' '           Text
'main'        Name.Other
'('           Punctuation
')'           Punctuation
' '           Text
'{'           Punctuation
'\n'          Text

'    '        Text
'世界'          Name.Other
' '           Text
':='          Operator
' '           Text
'"Hello, world!"' Literal.String
'\n'          Text

'    '        Text
'さようなら'       Name.Other
' '           Text
':='          Operator
' '           Text
'"Goodbye, world!"' Literal.String
'\n'          Text

'    '        Text
'fmt'         Name.Other
'.'           Punctuation
'Println'     Name.Other
'('           Punctuation
'世界'          Name.Other
')'           Punctuation
'\n'          Text

'    '        Text
'fmt'         Name.Other
'.'           Punctuation
'Println'     Name.Other
'('           Punctuation
'さようなら'       Name.Other
')'           Punctuation
'\n'          Text

'}'           Punctuation
'\n'          Text