Sanitize name tags

src/names.rs

@@ -0,0 +1,39 @@
+fn sanitize(src: &str) -> String {
+    // NOTE: The values on the right are _NOT_ the characters they appear to be.
+    src.replace("a", "а")
+        .replace("e", "e")
+        .replace("i", "і")
+        .replace("o", "о")
+        .replace("u", "ս")
+}
+
+/// Replace vowel characters with look alikes to avoid Slack mention logic
+/// # Args
+/// - `src`: The source text to modify
+/// - `names`: The set of names to sanitize
+fn sanitize_strings<'a>(src: &'a str, names: &Vec<String>) -> String {
+    let sanitization_strings = names.iter()
+        .map(|name| (name, sanitize(name)))
+        .collect::<Vec<(&String, String)>>();
+    let mut dest = src.to_string();
+    for (name, replacement) in sanitization_strings {
+        dest = dest.replace(name, &replacement);
+    }
+    return dest;
+}
+
+fn extract_names_from_tags(tags: &Vec<String>) -> Vec<String> {
+    tags
+        .iter()
+        .filter(|t| t.starts_with("@"))
+        .map(|t| {
+            let formatted_name = t.strip_prefix("@").expect(&format!("{t} should have started with @"));
+            String::from(formatted_name)
+        })
+        .collect()
+}
+
+pub fn sanitize_names(src: &str, tags: &Vec<String>) -> String {
+    let name_tags = extract_names_from_tags(tags);
+    sanitize_strings(src, &name_tags)
+}