Don't remove emoji selectors in search_stickers.

td/telegram/StickersManager.cpp

@@ -4750,7 +4750,7 @@ void StickersManager::search_stickers(StickerType sticker_type, string emoji, in
     limit = MAX_FOUND_STICKERS;
   }
 
-  remove_emoji_modifiers_in_place(emoji);
+  remove_emoji_modifiers_in_place(emoji, false);
   if (emoji.empty() || sticker_type == StickerType::Mask) {
     return promise.set_value(get_stickers_object({}));
   }

tdutils/td/utils/emoji.cpp

@@ -327,13 +327,13 @@ Slice remove_fitzpatrick_modifier(Slice emoji) {
   return emoji;
 }
 
-string remove_emoji_modifiers(Slice emoji) {
+string remove_emoji_modifiers(Slice emoji, bool remove_selectors) {
   string result = emoji.str();
-  remove_emoji_modifiers_in_place(result);
+  remove_emoji_modifiers_in_place(result, remove_selectors);
   return result;
 }
 
-void remove_emoji_modifiers_in_place(string &emoji) {
+void remove_emoji_modifiers_in_place(string &emoji, bool remove_selectors) {
   static const Slice modifiers[] = {u8"\uFE0F" /* variation selector-16 */,
                                     u8"\u200D\u2640" /* zero width joiner + female sign */,
                                     u8"\u200D\u2642" /* zero width joiner + male sign */,
@@ -342,13 +342,14 @@ void remove_emoji_modifiers_in_place(string &emoji) {
                                     u8"\U0001F3FD" /* emoji modifier fitzpatrick type-4 */,
                                     u8"\U0001F3FE" /* emoji modifier fitzpatrick type-5 */,
                                     u8"\U0001F3FF" /* emoji modifier fitzpatrick type-6 */};
+  const size_t start_index = remove_selectors ? 0 : 1;
   size_t j = 0;
   for (size_t i = 0; i < emoji.size();) {
     bool is_found = false;
-    for (auto &modifier : modifiers) {
-      auto length = modifier.size();
-      if (i + length <= emoji.size() && Slice(&emoji[i], length) == modifier) {
-        // skip modifier
+    for (size_t k = start_index; k < sizeof(modifiers) / sizeof(*modifiers); k++) {
+      auto length = modifiers[k].size();
+      if (i + length <= emoji.size() && Slice(&emoji[i], length) == modifiers[k]) {
+        // skip the modifier
         i += length;
         is_found = true;
         break;

tdutils/td/utils/emoji.h

@@ -21,10 +21,10 @@ int get_fitzpatrick_modifier(Slice emoji);
 Slice remove_fitzpatrick_modifier(Slice emoji);
 
 // removes all emoji modifiers from the string
-string remove_emoji_modifiers(Slice emoji);
+string remove_emoji_modifiers(Slice emoji, bool remove_selectors = true);
 
 // removes all emoji modifiers from the string in-place
-void remove_emoji_modifiers_in_place(string &emoji);
+void remove_emoji_modifiers_in_place(string &emoji, bool remove_selectors = true);
 
 // removes all emoji selectors from the string if it is an emoji
 string remove_emoji_selectors(Slice emoji);

tdutils/test/emoji.cpp

@@ -70,17 +70,18 @@ TEST(Emoji, get_fitzpatrick_modifier) {
   test_get_fitzpatrick_modifier("🧑‍🎄", 0);
 }
 
-static void test_remove_emoji_modifiers(td::string emoji, const td::string &result) {
-  ASSERT_STREQ(result, td::remove_emoji_modifiers(emoji));
-  td::remove_emoji_modifiers_in_place(emoji);
+static void test_remove_emoji_modifiers(td::string emoji, const td::string &result, bool remove_selectors = true) {
+  ASSERT_STREQ(result, td::remove_emoji_modifiers(emoji, remove_selectors));
+  td::remove_emoji_modifiers_in_place(emoji, remove_selectors);
   ASSERT_STREQ(result, emoji);
-  ASSERT_STREQ(emoji, td::remove_emoji_modifiers(emoji));
+  ASSERT_STREQ(emoji, td::remove_emoji_modifiers(emoji, remove_selectors));
 }
 
 TEST(Emoji, remove_emoji_modifiers) {
   test_remove_emoji_modifiers("", "");
   test_remove_emoji_modifiers("👩🏼‍❤‍💋‍👩🏻", "👩‍❤‍💋‍👩");
   test_remove_emoji_modifiers("👩🏼‍❤️‍💋‍👩🏻", "👩‍❤‍💋‍👩");
+  test_remove_emoji_modifiers("👩🏼‍❤️‍💋‍👩🏻", "👩‍❤️‍💋‍👩", false);
   test_remove_emoji_modifiers("👋🏻", "👋");
   test_remove_emoji_modifiers("👋🏼", "👋");
   test_remove_emoji_modifiers("👋🏽", "👋");