---
source: crates/ruff_python_parser/src/lexer.rs
expression: lex_source(source)
---
## Tokens
```
[
FStringStart 0..2 (flags = DOUBLE_QUOTES | F_STRING),
FStringMiddle 2..9 (flags = DOUBLE_QUOTES | F_STRING),
Lbrace 9..10,
Name 10..13,
Rbrace 13..14,
FStringMiddle 14..27 (flags = DOUBLE_QUOTES | F_STRING),
Lbrace 27..28,
Name 28..31,
Rbrace 31..32,
FStringMiddle 32..35 (flags = DOUBLE_QUOTES | F_STRING),
Lbrace 35..36,
Name 36..41,
Rbrace 41..42,
FStringMiddle 42..44 (flags = DOUBLE_QUOTES | F_STRING),
FStringEnd 44..45 (flags = DOUBLE_QUOTES | F_STRING),
Newline 45..45,
]
```