Consider raw source code for W605

crates/ruff_linter/resources/test/fixtures/pycodestyle/W605_1.py

@@ -52,3 +52,8 @@
 value = rf'\{1}'
 value = rf'{1:\}'
 value = f"{rf"\{1}"}"
+
+# Regression tests for https://github.com/astral-sh/ruff/issues/10434
+f"{{}}+-\d"
+f"\n{{}}+-\d+"
+f"\n{{}}�+-\d+"

crates/ruff_linter/src/rules/pycodestyle/rules/invalid_escape_sequence.rs

@@ -67,14 +67,15 @@ pub(crate) fn invalid_escape_sequence(
     token_range: TextRange,
 ) {
     let (token_source_code, string_start_location, kind) = match token {
-        Tok::FStringMiddle { value, kind } => {
+        Tok::FStringMiddle { kind, .. } => {
             if kind.is_raw_string() {
                 return;
             }
-            let Some(range) = indexer.fstring_ranges().innermost(token_range.start()) else {
+            let Some(f_string_range) = indexer.fstring_ranges().innermost(token_range.start())
+            else {
                 return;
             };
-            (&**value, range.start(), kind)
+            (locator.slice(token_range), f_string_range.start(), kind)
         }
         Tok::String { kind, .. } => {
             if kind.is_raw_string() {

crates/ruff_linter/src/rules/pycodestyle/snapshots/ruff_linter__rules__pycodestyle__tests__W605_W605_1.py.snap

@@ -224,4 +224,55 @@ W605_1.py:48:15: W605 [*] Invalid escape sequence: `\{`
 50 50 | # Okay
 51 51 | value = rf'\{{1}}'
 
+W605_1.py:57:9: W605 [*] Invalid escape sequence: `\d`
+   |
+56 | # Regression tests for https://github.com/astral-sh/ruff/issues/10434
+57 | f"{{}}+-\d"
+   |         ^^ W605
+58 | f"\n{{}}+-\d+"
+59 | f"\n{{}}�+-\d+"
+   |
+   = help: Use a raw string literal
+
+ℹ Safe fix
+54 54 | value = f"{rf"\{1}"}"
+55 55 | 
+56 56 | # Regression tests for https://github.com/astral-sh/ruff/issues/10434
+57    |-f"{{}}+-\d"
+   57 |+rf"{{}}+-\d"
+58 58 | f"\n{{}}+-\d+"
+59 59 | f"\n{{}}�+-\d+"
 
+W605_1.py:58:11: W605 [*] Invalid escape sequence: `\d`
+   |
+56 | # Regression tests for https://github.com/astral-sh/ruff/issues/10434
+57 | f"{{}}+-\d"
+58 | f"\n{{}}+-\d+"
+   |           ^^ W605
+59 | f"\n{{}}�+-\d+"
+   |
+   = help: Add backslash to escape sequence
+
+ℹ Safe fix
+55 55 | 
+56 56 | # Regression tests for https://github.com/astral-sh/ruff/issues/10434
+57 57 | f"{{}}+-\d"
+58    |-f"\n{{}}+-\d+"
+   58 |+f"\n{{}}+-\\d+"
+59 59 | f"\n{{}}�+-\d+"
+
+W605_1.py:59:12: W605 [*] Invalid escape sequence: `\d`
+   |
+57 | f"{{}}+-\d"
+58 | f"\n{{}}+-\d+"
+59 | f"\n{{}}�+-\d+"
+   |            ^^ W605
+   |
+   = help: Add backslash to escape sequence
+
+ℹ Safe fix
+56 56 | # Regression tests for https://github.com/astral-sh/ruff/issues/10434
+57 57 | f"{{}}+-\d"
+58 58 | f"\n{{}}+-\d+"
+59    |-f"\n{{}}�+-\d+"
+   59 |+f"\n{{}}�+-\\d+"