"Whole Words" search can detect word boundaries inside the search term.

For example, searching for ".func" will now match in "a.func" even with Whole Words enabled.

editor/code_editor.cpp

@@ -368,6 +368,9 @@ void FindReplaceBar::_update_results_count() {
 
 		int col_pos = 0;
 
+		bool searched_start_is_symbol = is_symbol(searched[0]);
+		bool searched_end_is_symbol = is_symbol(searched[searched.length() - 1]);
+
 		while (true) {
 			col_pos = is_case_sensitive() ? line_text.find(searched, col_pos) : line_text.findn(searched, col_pos);
 
@@ -376,11 +379,11 @@ void FindReplaceBar::_update_results_count() {
 			}
 
 			if (is_whole_words()) {
-				if (col_pos > 0 && !is_symbol(line_text[col_pos - 1])) {
+				if (!searched_start_is_symbol && col_pos > 0 && !is_symbol(line_text[col_pos - 1])) {
 					col_pos += searched.length();
 					continue;
 				}
-				if (col_pos + searched.length() < line_text.length() && !is_symbol(line_text[col_pos + searched.length()])) {
+				if (!searched_end_is_symbol && col_pos + searched.length() < line_text.length() && !is_symbol(line_text[col_pos + searched.length()])) {
 					col_pos += searched.length();
 					continue;
 				}

scene/gui/text_edit.cpp

@@ -4112,6 +4112,9 @@ Point2i TextEdit::search(const String &p_key, uint32_t p_search_flags, int p_fro
 	int line = p_from_line;
 	int pos = -1;
 
+	bool key_start_is_symbol = is_symbol(p_key[0]);
+	bool key_end_is_symbol = is_symbol(p_key[p_key.length() - 1]);
+
 	for (int i = 0; i < text.size() + 1; i++) {
 		if (line < 0) {
 			line = text.size() - 1;
@@ -4175,9 +4178,9 @@ Point2i TextEdit::search(const String &p_key, uint32_t p_search_flags, int p_fro
 
 			if (pos != -1 && (p_search_flags & SEARCH_WHOLE_WORDS)) {
 				// Validate for whole words.
-				if (pos > 0 && !is_symbol(text_line[pos - 1])) {
+				if (!key_start_is_symbol && pos > 0 && !is_symbol(text_line[pos - 1])) {
 					is_match = false;
-				} else if (pos + p_key.length() < text_line.length() && !is_symbol(text_line[pos + p_key.length()])) {
+				} else if (!key_end_is_symbol && pos + p_key.length() < text_line.length() && !is_symbol(text_line[pos + p_key.length()])) {
 					is_match = false;
 				}
 			}
@@ -7020,6 +7023,9 @@ int TextEdit::_get_column_pos_of_word(const String &p_key, const String &p_searc
 			p_from_column = 0;
 		}
 
+		bool key_start_is_symbol = is_symbol(p_key[0]);
+		bool key_end_is_symbol = is_symbol(p_key[p_key.length() - 1]);
+
 		while (col == -1 && p_from_column <= p_search.length()) {
 			if (p_search_flags & SEARCH_MATCH_CASE) {
 				col = p_search.find(p_key, p_from_column);
@@ -7036,9 +7042,9 @@ int TextEdit::_get_column_pos_of_word(const String &p_key, const String &p_searc
 			if (col != -1 && p_search_flags & SEARCH_WHOLE_WORDS) {
 				p_from_column = col;
 
-				if (col > 0 && !is_symbol(p_search[col - 1])) {
+				if (!key_start_is_symbol && col > 0 && !is_symbol(p_search[col - 1])) {
 					col = -1;
-				} else if ((col + p_key.length()) < p_search.length() && !is_symbol(p_search[col + p_key.length()])) {
+				} else if (!key_end_is_symbol && (col + p_key.length()) < p_search.length() && !is_symbol(p_search[col + p_key.length()])) {
 					col = -1;
 				}
 			}

tests/scene/test_text_edit.h

@@ -3193,7 +3193,7 @@ TEST_CASE("[SceneTree][TextEdit] search") {
 	TextEdit *text_edit = memnew(TextEdit);
 	SceneTree::get_singleton()->get_root()->add_child(text_edit);
 
-	text_edit->set_text("hay needle, hay\nHAY NEEDLE, HAY");
+	text_edit->set_text("hay needle, hay\nHAY NEEDLE, HAY\nwordword.word.word");
 	int length = text_edit->get_line(1).length();
 
 	CHECK(text_edit->search("test", 0, 0, 0) == Point2i(-1, -1));
@@ -3225,6 +3225,11 @@ TEST_CASE("[SceneTree][TextEdit] search") {
 	CHECK(text_edit->search("need", TextEdit::SEARCH_WHOLE_WORDS | TextEdit::SEARCH_MATCH_CASE, 0, 0) == Point2i(-1, -1));
 	CHECK(text_edit->search("need", TextEdit::SEARCH_WHOLE_WORDS | TextEdit::SEARCH_MATCH_CASE | TextEdit::SEARCH_BACKWARDS, 0, 0) == Point2i(-1, -1));
 
+	CHECK(text_edit->search("word", TextEdit::SEARCH_WHOLE_WORDS, 2, 0) == Point2i(9, 2));
+	CHECK(text_edit->search("word", TextEdit::SEARCH_WHOLE_WORDS, 2, 10) == Point2i(14, 2));
+	CHECK(text_edit->search(".word", TextEdit::SEARCH_WHOLE_WORDS, 2, 0) == Point2i(8, 2));
+	CHECK(text_edit->search("word.", TextEdit::SEARCH_WHOLE_WORDS, 2, 0) == Point2i(9, 2));
+
 	ERR_PRINT_OFF;
 	CHECK(text_edit->search("", 0, 0, 0) == Point2i(-1, -1));
 	CHECK(text_edit->search("needle", 0, -1, 0) == Point2i(-1, -1));