In contact search, ignore diacritic characters

app/src/main/kotlin/com/tutpro/baresip/ContactsScreen.kt

@@ -240,11 +240,12 @@ private fun ContactsContent(
     }
 
     val filteredContacts = remember(BaresipService.contacts, searchQuery) {
-        if (searchQuery.isBlank()) {
+        if (searchQuery.isBlank())
             BaresipService.contacts
-        } else {
+        else {
+            val normalizedQuery = Utils.unaccent(searchQuery)
             BaresipService.contacts.filter { contact ->
-                contact.name().contains(searchQuery, ignoreCase = true)
+                Utils.unaccent(contact.name()).contains(normalizedQuery, ignoreCase = true)
             }
         }
     }

app/src/main/kotlin/com/tutpro/baresip/MainScreen.kt

@@ -1357,6 +1357,7 @@ private fun CallUriRow(
             }
     }
 }
+
 @Composable
 private fun CallTimer(
     initialDurationSeconds: Long,

app/src/main/kotlin/com/tutpro/baresip/Utils.kt

@@ -419,6 +419,11 @@ object Utils {
         return res
     }
 
+    fun unaccent(input: String): String {
+        val normalized = java.text.Normalizer.normalize(input, java.text.Normalizer.Form.NFD)
+        return "\\p{InCombiningDiacriticalMarks}+".toRegex().replace(normalized, "")
+    }
+
     fun isVisible(): Boolean {
         return ProcessLifecycleOwner.get().lifecycle.currentState.isAtLeast(Lifecycle.State.STARTED)
     }