[`pylint`] Add U+061C to `PLE2502` (#20106)

Resolves #20058

crates/ruff_linter/resources/test/fixtures/pylint/bidirectional_unicode.py

@@ -4,6 +4,9 @@ print("שלום‬")
 # E2502
 example = "x‏" * 100  #    "‏x" is assigned
 
+# E2502
+another = "x؜" * 50  #    "؜x" is assigned
+
 # E2502
 if access_level != "none‮⁦":  # Check if admin ⁩⁦' and access_level != 'user
     print("You are an admin.")

crates/ruff_linter/src/preview.rs

@@ -255,3 +255,8 @@ pub(crate) const fn is_trailing_comma_type_params_enabled(settings: &LinterSetti
 pub(crate) const fn is_maxsplit_without_separator_fix_enabled(settings: &LinterSettings) -> bool {
     settings.preview.is_enabled()
 }
+
+// https://github.com/astral-sh/ruff/pull/20106
+pub(crate) const fn is_bidi_forbid_arabic_letter_mark_enabled(settings: &LinterSettings) -> bool {
+    settings.preview.is_enabled()
+}

crates/ruff_linter/src/rules/pylint/mod.rs

@@ -252,6 +252,30 @@ mod tests {
         Ok(())
     }
 
+    #[test_case(Rule::BidirectionalUnicode, Path::new("bidirectional_unicode.py"))]
+    fn preview_rules(rule_code: Rule, path: &Path) -> Result<()> {
+        let snapshot = format!(
+            "preview__{}_{}",
+            rule_code.noqa_code(),
+            path.to_string_lossy()
+        );
+        let diagnostics = test_path(
+            Path::new("pylint").join(path).as_path(),
+            &LinterSettings {
+                pylint: pylint::settings::Settings {
+                    allow_dunder_method_names: FxHashSet::from_iter([
+                        "__special_custom_magic__".to_string()
+                    ]),
+                    ..pylint::settings::Settings::default()
+                },
+                preview: PreviewMode::Enabled,
+                ..LinterSettings::for_rule(rule_code)
+            },
+        )?;
+        assert_diagnostics!(snapshot, diagnostics);
+        Ok(())
+    }
+
     #[test]
     fn continue_in_finally() -> Result<()> {
         let diagnostics = test_path(

crates/ruff_linter/src/rules/pylint/rules/bidirectional_unicode.rs

@@ -1,7 +1,9 @@
 use ruff_macros::{ViolationMetadata, derive_message_formats};
 use ruff_source_file::Line;
 
-use crate::{Violation, checkers::ast::LintContext};
+use crate::{
+    Violation, checkers::ast::LintContext, preview::is_bidi_forbid_arabic_letter_mark_enabled,
+};
 
 const BIDI_UNICODE: [char; 10] = [
     '\u{202A}', //{LEFT-TO-RIGHT EMBEDDING}
@@ -60,7 +62,12 @@ impl Violation for BidirectionalUnicode {
 
 /// PLE2502
 pub(crate) fn bidirectional_unicode(line: &Line, context: &LintContext) {
-    if line.contains(BIDI_UNICODE) {
+    if line.contains(BIDI_UNICODE)
+        || (is_bidi_forbid_arabic_letter_mark_enabled(context.settings())
+            && line.contains(
+                '\u{061C}', //{ARABIC LETTER MARK}
+            ))
+    {
         context.report_diagnostic(BidirectionalUnicode, line.full_range());
     }
 }

crates/ruff_linter/src/rules/pylint/snapshots/ruff_linter__rules__pylint__tests__PLE2502_bidirectional_unicode.py.snap

@@ -22,21 +22,21 @@ PLE2502 Contains control characters that can permit obfuscated code
   |
 
 PLE2502 Contains control characters that can permit obfuscated code
- --> bidirectional_unicode.py:8:1
+  --> bidirectional_unicode.py:11:1
-  |
+   |
-7 | # E2502
+10 | # E2502
-8 | if access_level != "none":  # Check if admin ' and access_level != 'user
+11 | if access_level != "none":  # Check if admin ' and access_level != 'user
-  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-9 |     print("You are an admin.")
+12 |     print("You are an admin.")
-  |
+   |
 
 PLE2502 Contains control characters that can permit obfuscated code
-  --> bidirectional_unicode.py:14:1
+  --> bidirectional_unicode.py:17:1
    |
-12 | # E2502
+15 | # E2502
-13 | def subtract_funds(account: str, amount: int):
+16 | def subtract_funds(account: str, amount: int):
-14 |     """Subtract funds from bank account then """
+17 |     """Subtract funds from bank account then """
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-15 |     return
+18 |     return
-16 |     bank[account] -= amount
+19 |     bank[account] -= amount
    |

crates/ruff_linter/src/rules/pylint/snapshots/ruff_linter__rules__pylint__tests__preview__PLE2502_bidirectional_unicode.py.snap

@@ -0,0 +1,52 @@
+---
+source: crates/ruff_linter/src/rules/pylint/mod.rs
+---
+PLE2502 Contains control characters that can permit obfuscated code
+ --> bidirectional_unicode.py:2:1
+  |
+1 | # E2502
+2 | print("שלום")
+  | ^^^^^^^^^^^^^
+3 |
+4 | # E2502
+  |
+
+PLE2502 Contains control characters that can permit obfuscated code
+ --> bidirectional_unicode.py:5:1
+  |
+4 | # E2502
+5 | example = "x‏" * 100  #    "‏x" is assigned
+  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+6 |
+7 | # E2502
+  |
+
+PLE2502 Contains control characters that can permit obfuscated code
+  --> bidirectional_unicode.py:8:1
+   |
+ 7 | # E2502
+ 8 | another = "x؜" * 50  #    "؜x" is assigned
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+ 9 |
+10 | # E2502
+   |
+
+PLE2502 Contains control characters that can permit obfuscated code
+  --> bidirectional_unicode.py:11:1
+   |
+10 | # E2502
+11 | if access_level != "none":  # Check if admin ' and access_level != 'user
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+12 |     print("You are an admin.")
+   |
+
+PLE2502 Contains control characters that can permit obfuscated code
+  --> bidirectional_unicode.py:17:1
+   |
+15 | # E2502
+16 | def subtract_funds(account: str, amount: int):
+17 |     """Subtract funds from bank account then """
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+18 |     return
+19 |     bank[account] -= amount
+   |