Add explicit sexual language typos rule

src/groups/calls/lists/explicit-sexual-language-typos.txt

@@ -0,0 +1 @@
+ho

src/groups/calls/lists/explicit-sexual-language.txt

@@ -53,8 +53,9 @@ squirts
 bitch
 bih
 bich
-ho
 hoe
+// ho is in "explicit sexual language typos" because it's usually also a typo of "hi". it gets
+// censored instead of banned.
 huz
 slut
 dldo

src/groups/calls/moderation.rs

@@ -555,6 +555,42 @@ impl Rule for ExplicitSexualLanguageRule {
     }
 }
 
+struct ExplicitSexualLanguageTypoRule {
+    pattern: Regex,
+    exceptions: Vec<String>,
+}
+
+impl ExplicitSexualLanguageTypoRule {
+    fn new() -> Self {
+        let (phrases, exceptions) =
+            parse_phrases_file(include_str!("lists/explicit-sexual-language-typos.txt"));
+
+        let regex = regex_from_phrases_list(&phrases);
+
+        Self {
+            pattern: regex,
+            exceptions,
+        }
+    }
+}
+
+impl Rule for ExplicitSexualLanguageTypoRule {
+    fn action(&self) -> &'static Action {
+        &Action::SoftCensorAndWarn
+    }
+
+    fn name(&self) -> &'static str {
+        "Explicit Sexual Language Typo"
+    }
+
+    fn detect(&self, _original: &str, normalized: &str) -> (Vec<String>, Vec<String>) {
+        (
+            vec![],
+            find_with_exceptions(normalized, &self.pattern, &self.exceptions),
+        )
+    }
+}
+
 struct SuggestiveLanguageRule {
     pattern: Regex,
     exceptions: Vec<String>,
@@ -759,6 +795,7 @@ pub static RULES: Lazy<Vec<Arc<dyn Rule>>> = Lazy::new(|| {
         Arc::new(HateSpeechAndSlursRule::new()),
         Arc::new(ThreatsAndSelfHarmRule::new()),
         Arc::new(ExplicitSexualLanguageRule::new()),
+        Arc::new(ExplicitSexualLanguageTypoRule::new()),
         Arc::new(SuggestiveLanguageRule::new()),
         Arc::new(AdvertisingRule),
         Arc::new(SensitiveTopicsAndTriggeringContentRule::new()),