Merge pull request #40999 from bruvzg/ctl_string_to_utf32

[Complex Test Layouts] Refactor `String` to use UTF-32 encoding.

14 files changed, 118 insertions, 118 deletions

diff --git a/scene/gui/label.cpp b/scene/gui/label.cpp
index f49acc1b96..9f3db2ba20 100644
--- a/scene/gui/label.cpp
+++ b/scene/gui/label.cpp
@@ -235,8 +235,8 @@ void Label::_notification(int p_what) {
 					float x_ofs_shadow = x_ofs;
 					for (int i = 0; i < from->word_len; i++) {
 						if (visible_chars < 0 || chars_total_shadow < visible_chars) {
-							CharType c = xl_text[i + pos];
-							CharType n = xl_text[i + pos + 1];
+							char32_t c = xl_text[i + pos];
+							char32_t n = xl_text[i + pos + 1];
 							if (uppercase) {
 								c = String::char_uppercase(c);
 								n = String::char_uppercase(n);
@@ -255,8 +255,8 @@ void Label::_notification(int p_what) {
 				}
 				for (int i = 0; i < from->word_len; i++) {
 					if (visible_chars < 0 || chars_total < visible_chars) {
-						CharType c = xl_text[i + pos];
-						CharType n = xl_text[i + pos + 1];
+						char32_t c = xl_text[i + pos];
+						char32_t n = xl_text[i + pos + 1];
 						if (uppercase) {
 							c = String::char_uppercase(c);
 							n = String::char_uppercase(n);
@@ -308,7 +308,7 @@ int Label::get_longest_line_width() const {
 	real_t line_width = 0;
 
 	for (int i = 0; i < xl_text.size(); i++) {
-		CharType current = xl_text[i];
+		char32_t current = xl_text[i];
 		if (uppercase) {
 			current = String::char_uppercase(current);
 		}
@@ -390,7 +390,7 @@ void Label::regenerate_word_cache() {
 	WordCache *last = nullptr;
 
 	for (int i = 0; i <= xl_text.length(); i++) {
-		CharType current = i < xl_text.length() ? xl_text[i] : L' '; //always a space at the end, so the algo works
+		char32_t current = i < xl_text.length() ? xl_text[i] : L' '; //always a space at the end, so the algo works
 
 		if (uppercase) {
 			current = String::char_uppercase(current);
diff --git a/scene/gui/line_edit.cpp b/scene/gui/line_edit.cpp
index 14167531a5..8b95acff70 100644
--- a/scene/gui/line_edit.cpp
+++ b/scene/gui/line_edit.cpp
@@ -42,7 +42,7 @@
 #include "editor/editor_settings.h"
 #endif
 #include "scene/main/window.h"
-static bool _is_text_char(CharType c) {
+static bool _is_text_char(char32_t c) {
 	return !is_symbol(c);
 }
 
@@ -582,7 +582,7 @@ void LineEdit::_gui_input(Ref<InputEvent> p_event) {
 				if (k->get_unicode() >= 32 && k->get_keycode() != KEY_DELETE) {
 					if (editable) {
 						selection_delete();
-						CharType ucodestr[2] = { (CharType)k->get_unicode(), 0 };
+						char32_t ucodestr[2] = { (char32_t)k->get_unicode(), 0 };
 						int prev_len = text.length();
 						append_at_cursor(ucodestr);
 						if (text.length() != prev_len) {
@@ -807,8 +807,8 @@ void LineEdit::_notification(int p_what) {
 								break;
 							}
 
-							CharType cchar = (pass && !text.empty()) ? secret_character[0] : ime_text[ofs];
-							CharType next = (pass && !text.empty()) ? secret_character[0] : ime_text[ofs + 1];
+							char32_t cchar = (pass && !text.empty()) ? secret_character[0] : ime_text[ofs];
+							char32_t next = (pass && !text.empty()) ? secret_character[0] : ime_text[ofs + 1];
 							int im_char_width = font->get_char_size(cchar, next).width;
 
 							if ((x_ofs + im_char_width) > ofs_max) {
@@ -830,8 +830,8 @@ void LineEdit::_notification(int p_what) {
 					}
 				}
 
-				CharType cchar = (pass && !text.empty()) ? secret_character[0] : t[char_ofs];
-				CharType next = (pass && !text.empty()) ? secret_character[0] : t[char_ofs + 1];
+				char32_t cchar = (pass && !text.empty()) ? secret_character[0] : t[char_ofs];
+				char32_t next = (pass && !text.empty()) ? secret_character[0] : t[char_ofs + 1];
 				int char_width = font->get_char_size(cchar, next).width;
 
 				// End of widget, break.
@@ -870,8 +870,8 @@ void LineEdit::_notification(int p_what) {
 							break;
 						}
 
-						CharType cchar = (pass && !text.empty()) ? secret_character[0] : ime_text[ofs];
-						CharType next = (pass && !text.empty()) ? secret_character[0] : ime_text[ofs + 1];
+						char32_t cchar = (pass && !text.empty()) ? secret_character[0] : ime_text[ofs];
+						char32_t next = (pass && !text.empty()) ? secret_character[0] : ime_text[ofs + 1];
 						int im_char_width = font->get_char_size(cchar, next).width;
 
 						if ((x_ofs + im_char_width) > ofs_max) {
diff --git a/scene/gui/rich_text_effect.h b/scene/gui/rich_text_effect.h
index 77c82aa780..a5401f7eaa 100644
--- a/scene/gui/rich_text_effect.h
+++ b/scene/gui/rich_text_effect.h
@@ -59,7 +59,7 @@ public:
 	bool visibility;
 	Point2 offset;
 	Color color;
-	CharType character;
+	char32_t character;
 	float elapsed_time;
 	Dictionary environment;
 
@@ -79,7 +79,7 @@ public:
 	Color get_color() { return color; }
 	void set_color(Color p_color) { color = p_color; }
 	int get_character() { return (int)character; }
-	void set_character(int p_char) { character = (CharType)p_char; }
+	void set_character(int p_char) { character = (char32_t)p_char; }
 	Dictionary get_environment() { return environment; }
 	void set_environment(Dictionary p_environment) { environment = p_environment; }
 };
diff --git a/scene/gui/rich_text_label.cpp b/scene/gui/rich_text_label.cpp
index 29337e20f3..c62fd24a5e 100644
--- a/scene/gui/rich_text_label.cpp
+++ b/scene/gui/rich_text_label.cpp
@@ -354,8 +354,8 @@ int RichTextLabel::_process_line(ItemFrame *p_frame, const Vector2 &p_ofs, int &
 					font = p_base_font;
 				}
 
-				const CharType *c = text->text.c_str();
-				const CharType *cf = c;
+				const char32_t *c = text->text.get_data();
+				const char32_t *cf = c;
 				int ascent = font->get_ascent();
 				int descent = font->get_descent();
 
@@ -461,7 +461,7 @@ int RichTextLabel::_process_line(ItemFrame *p_frame, const Vector2 &p_ofs, int &
 								bool selected = false;
 								Color fx_color = Color(color);
 								Point2 fx_offset;
-								CharType fx_char = c[i];
+								char32_t fx_char = c[i];
 
 								if (selection.active) {
 									int cofs = (&c[i]) - cf;
diff --git a/scene/gui/text_edit.cpp b/scene/gui/text_edit.cpp
index d6d8e74748..1d732bec5b 100644
--- a/scene/gui/text_edit.cpp
+++ b/scene/gui/text_edit.cpp
@@ -44,23 +44,23 @@
 
 #define TAB_PIXELS
 
-inline bool _is_symbol(CharType c) {
+inline bool _is_symbol(char32_t c) {
 	return is_symbol(c);
 }
 
-static bool _is_text_char(CharType c) {
+static bool _is_text_char(char32_t c) {
 	return !is_symbol(c);
 }
 
-static bool _is_whitespace(CharType c) {
+static bool _is_whitespace(char32_t c) {
 	return c == '\t' || c == ' ';
 }
 
-static bool _is_char(CharType c) {
+static bool _is_char(char32_t c) {
 	return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_';
 }
 
-static bool _is_pair_right_symbol(CharType c) {
+static bool _is_pair_right_symbol(char32_t c) {
 	return c == '"' ||
 		   c == '\'' ||
 		   c == ')' ||
@@ -68,7 +68,7 @@ static bool _is_pair_right_symbol(CharType c) {
 		   c == '}';
 }
 
-static bool _is_pair_left_symbol(CharType c) {
+static bool _is_pair_left_symbol(char32_t c) {
 	return c == '"' ||
 		   c == '\'' ||
 		   c == '(' ||
@@ -76,11 +76,11 @@ static bool _is_pair_left_symbol(CharType c) {
 		   c == '{';
 }
 
-static bool _is_pair_symbol(CharType c) {
+static bool _is_pair_symbol(char32_t c) {
 	return _is_pair_left_symbol(c) || _is_pair_right_symbol(c);
 }
 
-static CharType _get_right_pair_symbol(CharType c) {
+static char32_t _get_right_pair_symbol(char32_t c) {
 	if (c == '"') {
 		return '"';
 	}
@@ -119,7 +119,7 @@ void TextEdit::Text::_update_line_cache(int p_line) const {
 	int w = 0;
 
 	int len = text[p_line].data.length();
-	const CharType *str = text[p_line].data.c_str();
+	const char32_t *str = text[p_line].data.get_data();
 
 	// Update width.
 
@@ -214,7 +214,7 @@ void TextEdit::Text::remove(int p_at) {
 	text.remove(p_at);
 }
 
-int TextEdit::Text::get_char_width(CharType c, CharType next_c, int px) const {
+int TextEdit::Text::get_char_width(char32_t c, char32_t next_c, int px) const {
 	int tab_w = font->get_char_size(' ').width * indent_size;
 	int w = 0;
 
@@ -654,8 +654,8 @@ void TextEdit::_notification(int p_what) {
 			if (brace_matching_enabled && cursor.line >= 0 && cursor.line < text.size() && cursor.column >= 0) {
 				if (cursor.column < text[cursor.line].length()) {
 					// Check for open.
-					CharType c = text[cursor.line][cursor.column];
-					CharType closec = 0;
+					char32_t c = text[cursor.line][cursor.column];
+					char32_t closec = 0;
 
 					if (c == '[') {
 						closec = ']';
@@ -671,10 +671,10 @@ void TextEdit::_notification(int p_what) {
 						for (int i = cursor.line; i < text.size(); i++) {
 							int from = i == cursor.line ? cursor.column + 1 : 0;
 							for (int j = from; j < text[i].length(); j++) {
-								CharType cc = text[i][j];
+								char32_t cc = text[i][j];
 								// Ignore any brackets inside a string.
 								if (cc == '"' || cc == '\'') {
-									CharType quotation = cc;
+									char32_t quotation = cc;
 									do {
 										j++;
 										if (!(j < text[i].length())) {
@@ -720,8 +720,8 @@ void TextEdit::_notification(int p_what) {
 				}
 
 				if (cursor.column > 0) {
-					CharType c = text[cursor.line][cursor.column - 1];
-					CharType closec = 0;
+					char32_t c = text[cursor.line][cursor.column - 1];
+					char32_t closec = 0;
 
 					if (c == ']') {
 						closec = '[';
@@ -737,10 +737,10 @@ void TextEdit::_notification(int p_what) {
 						for (int i = cursor.line; i >= 0; i--) {
 							int from = i == cursor.line ? cursor.column - 2 : text[i].length() - 1;
 							for (int j = from; j >= 0; j--) {
-								CharType cc = text[i][j];
+								char32_t cc = text[i][j];
 								// Ignore any brackets inside a string.
 								if (cc == '"' || cc == '\'') {
-									CharType quotation = cc;
+									char32_t quotation = cc;
 									do {
 										j--;
 										if (!(j >= 0)) {
@@ -1303,8 +1303,8 @@ void TextEdit::_notification(int p_what) {
 										break;
 									}
 
-									CharType cchar = ime_text[ofs];
-									CharType next = ime_text[ofs + 1];
+									char32_t cchar = ime_text[ofs];
+									char32_t next = ime_text[ofs + 1];
 									int im_char_width = cache.font->get_char_size(cchar, next).width;
 
 									if ((char_ofs + char_margin + im_char_width) >= xmargin_end) {
@@ -1399,8 +1399,8 @@ void TextEdit::_notification(int p_what) {
 									break;
 								}
 
-								CharType cchar = ime_text[ofs];
-								CharType next = ime_text[ofs + 1];
+								char32_t cchar = ime_text[ofs];
+								char32_t next = ime_text[ofs + 1];
 								int im_char_width = cache.font->get_char_size(cchar, next).width;
 
 								if ((char_ofs + char_margin + im_char_width) >= xmargin_end) {
@@ -1661,12 +1661,12 @@ void TextEdit::_notification(int p_what) {
 	}
 }
 
-void TextEdit::_consume_pair_symbol(CharType ch) {
+void TextEdit::_consume_pair_symbol(char32_t ch) {
 	int cursor_position_to_move = cursor_get_column() + 1;
 
-	CharType ch_single[2] = { ch, 0 };
-	CharType ch_single_pair[2] = { _get_right_pair_symbol(ch), 0 };
-	CharType ch_pair[3] = { ch, _get_right_pair_symbol(ch), 0 };
+	char32_t ch_single[2] = { ch, 0 };
+	char32_t ch_single_pair[2] = { _get_right_pair_symbol(ch), 0 };
+	char32_t ch_pair[3] = { ch, _get_right_pair_symbol(ch), 0 };
 
 	if (is_selection_active()) {
 		int new_column, new_line;
@@ -1771,8 +1771,8 @@ void TextEdit::_consume_backspace_for_pair_symbol(int prev_line, int prev_column
 	bool remove_right_symbol = false;
 
 	if (cursor.column < text[cursor.line].length() && cursor.column > 0) {
-		CharType left_char = text[cursor.line][cursor.column - 1];
-		CharType right_char = text[cursor.line][cursor.column];
+		char32_t left_char = text[cursor.line][cursor.column - 1];
+		char32_t right_char = text[cursor.line][cursor.column];
 
 		if (right_char == _get_right_pair_symbol(left_char)) {
 			remove_right_symbol = true;
@@ -2540,7 +2540,7 @@ void TextEdit::_gui_input(const Ref<InputEvent> &p_gui_input) {
 				if (k->get_unicode() > 32) {
 					_reset_caret_blink_timer();
 
-					const CharType chr[2] = { (CharType)k->get_unicode(), 0 };
+					const char32_t chr[2] = { (char32_t)k->get_unicode(), 0 };
 					if (auto_brace_completion_enabled && _is_pair_symbol(chr[0])) {
 						_consume_pair_symbol(chr[0]);
 					} else {
@@ -2784,7 +2784,7 @@ void TextEdit::_gui_input(const Ref<InputEvent> &p_gui_input) {
 							}
 
 							// No need to move the brace below if we are not taking the text with us.
-							char closing_char = _get_right_pair_symbol(indent_char);
+							char32_t closing_char = _get_right_pair_symbol(indent_char);
 							if ((closing_char != 0) && (closing_char == text[cursor.line][cursor.column]) && !k->get_command()) {
 								brace_indent = true;
 								ins += "\n" + ins.substr(1, ins.length() - 2);
@@ -3312,7 +3312,7 @@ void TextEdit::_gui_input(const Ref<InputEvent> &p_gui_input) {
 						// Compute whitespace symbols seq length.
 						int current_line_whitespace_len = 0;
 						while (current_line_whitespace_len < text[cursor.line].length()) {
-							CharType c = text[cursor.line][current_line_whitespace_len];
+							char32_t c = text[cursor.line][current_line_whitespace_len];
 							if (c != '\t' && c != ' ') {
 								break;
 							}
@@ -3458,7 +3458,7 @@ void TextEdit::_gui_input(const Ref<InputEvent> &p_gui_input) {
 
 					int current_line_whitespace_len = 0;
 					while (current_line_whitespace_len < text[cursor.line].length()) {
-						CharType c = text[cursor.line][current_line_whitespace_len];
+						char32_t c = text[cursor.line][current_line_whitespace_len];
 						if (c != '\t' && c != ' ')
 							break;
 						current_line_whitespace_len++;
@@ -3624,7 +3624,7 @@ void TextEdit::_gui_input(const Ref<InputEvent> &p_gui_input) {
 					}
 				}
 
-				const CharType chr[2] = { (CharType)k->get_unicode(), 0 };
+				const char32_t chr[2] = { (char32_t)k->get_unicode(), 0 };
 
 				if (completion_hint != "" && k->get_unicode() == ')') {
 					completion_hint = "";
@@ -4251,7 +4251,7 @@ Vector<String> TextEdit::get_wrap_rows_text(int p_line) const {
 	}
 
 	while (col < line_text.length()) {
-		CharType c = line_text[col];
+		char32_t c = line_text[col];
 		int w = text.get_char_width(c, line_text[col + 1], px + word_px);
 
 		int indent_ofs = (cur_wrap_index != 0 ? tab_offset_px : 0);
@@ -6115,9 +6115,9 @@ void TextEdit::_confirm_completion() {
 
 	// When inserted into the middle of an existing string/method, don't add an unnecessary quote/bracket.
 	String line = text[cursor.line];
-	CharType next_char = line[cursor.column];
-	CharType last_completion_char = completion_current.insert_text[completion_current.insert_text.length() - 1];
-	CharType last_completion_char_display = completion_current.display[completion_current.display.length() - 1];
+	char32_t next_char = line[cursor.column];
+	char32_t last_completion_char = completion_current.insert_text[completion_current.insert_text.length() - 1];
+	char32_t last_completion_char_display = completion_current.display[completion_current.display.length() - 1];
 
 	if ((last_completion_char == '"' || last_completion_char == '\'') && (last_completion_char == next_char || last_completion_char_display == next_char)) {
 		_remove_text(cursor.line, cursor.column, cursor.line, cursor.column + 1);
@@ -6161,7 +6161,7 @@ void TextEdit::_cancel_completion() {
 	update();
 }
 
-static bool _is_completable(CharType c) {
+static bool _is_completable(char32_t c) {
 	return !_is_symbol(c) || c == '"' || c == '\'';
 }
 
@@ -6292,14 +6292,14 @@ void TextEdit::_update_completion_candidates() {
 
 			String display_lower = option.display.to_lower();
 
-			const CharType *ssq = &s[0];
-			const CharType *ssq_lower = &s_lower[0];
+			const char32_t *ssq = &s[0];
+			const char32_t *ssq_lower = &s_lower[0];
 
-			const CharType *tgt = &option.display[0];
-			const CharType *tgt_lower = &display_lower[0];
+			const char32_t *tgt = &option.display[0];
+			const char32_t *tgt_lower = &display_lower[0];
 
-			const CharType *ssq_last_tgt = nullptr;
-			const CharType *ssq_lower_last_tgt = nullptr;
+			const char32_t *ssq_last_tgt = nullptr;
+			const char32_t *ssq_lower_last_tgt = nullptr;
 
 			for (; *tgt; tgt++, tgt_lower++) {
 				if (*ssq == *tgt) {
@@ -6416,7 +6416,7 @@ String TextEdit::get_word_at_pos(const Vector2 &p_pos) const {
 	int beg, end;
 	if (select_word(s, col, beg, end)) {
 		bool inside_quotes = false;
-		CharType selected_quote = '\0';
+		char32_t selected_quote = '\0';
 		int qbegin = 0, qend = 0;
 		for (int i = 0; i < s.length(); i++) {
 			if (s[i] == '"' || s[i] == '\'') {
diff --git a/scene/gui/text_edit.h b/scene/gui/text_edit.h
index a6bc9963cc..70d7365d71 100644
--- a/scene/gui/text_edit.h
+++ b/scene/gui/text_edit.h
@@ -79,7 +79,7 @@ public:
 		void set_font(const Ref<Font> &p_font);
 		int get_line_width(int p_line) const;
 		int get_max_width(bool p_exclude_hidden = false) const;
-		int get_char_width(CharType c, CharType next_c, int px) const;
+		int get_char_width(char32_t c, char32_t next_c, int px) const;
 		void set_line_wrap_amount(int p_line, int p_wrap_amount) const;
 		int get_line_wrap_amount(int p_line) const;
 		void set(int p_line, const String &p_text);
@@ -488,7 +488,7 @@ protected:
 	void _gui_input(const Ref<InputEvent> &p_gui_input);
 	void _notification(int p_what);
 
-	void _consume_pair_symbol(CharType ch);
+	void _consume_pair_symbol(char32_t ch);
 	void _consume_backspace_for_pair_symbol(int prev_line, int prev_column);
 
 	static void _bind_methods();
diff --git a/scene/main/canvas_item.cpp b/scene/main/canvas_item.cpp
index d6d1134cc9..5cd45ea408 100644
--- a/scene/main/canvas_item.cpp
+++ b/scene/main/canvas_item.cpp
@@ -939,9 +939,9 @@ float CanvasItem::draw_char(const Ref<Font> &p_font, const Point2 &p_pos, const
 	ERR_FAIL_COND_V(p_font.is_null(), 0);
 
 	if (p_font->has_outline()) {
-		p_font->draw_char(canvas_item, p_pos, p_char[0], p_next.c_str()[0], Color(1, 1, 1), true);
+		p_font->draw_char(canvas_item, p_pos, p_char[0], p_next.get_data()[0], Color(1, 1, 1), true);
 	}
-	return p_font->draw_char(canvas_item, p_pos, p_char[0], p_next.c_str()[0], p_modulate);
+	return p_font->draw_char(canvas_item, p_pos, p_char[0], p_next.get_data()[0], p_modulate);
 }
 
 void CanvasItem::_notify_transform(CanvasItem *p_node) {
diff --git a/scene/main/node.cpp b/scene/main/node.cpp
index 6b304c03d2..e7753089c7 100644
--- a/scene/main/node.cpp
+++ b/scene/main/node.cpp
@@ -1094,7 +1094,7 @@ String increase_numeric_string(const String &s) {
 		if (!carry) {
 			break;
 		}
-		CharType n = s[i];
+		char32_t n = s[i];
 		if (n == '9') { // keep carry as true: 9 + 1
 			res[i] = '0';
 		} else {
@@ -1155,7 +1155,7 @@ void Node::_generate_serial_child_name(const Node *p_child, StringName &name) co
 	String name_string = name;
 	String nums;
 	for (int i = name_string.length() - 1; i >= 0; i--) {
-		CharType n = name_string[i];
+		char32_t n = name_string[i];
 		if (n >= '0' && n <= '9') {
 			nums = String::chr(name_string[i]) + nums;
 		} else {
diff --git a/scene/resources/dynamic_font.cpp b/scene/resources/dynamic_font.cpp
index 99f87dd6ed..bc983c1d7e 100644
--- a/scene/resources/dynamic_font.cpp
+++ b/scene/resources/dynamic_font.cpp
@@ -239,7 +239,7 @@ float DynamicFontAtSize::get_underline_thickness() const {
 	return underline_thickness;
 }
 
-const Pair<const DynamicFontAtSize::Character *, DynamicFontAtSize *> DynamicFontAtSize::_find_char_with_font(CharType p_char, const Vector<Ref<DynamicFontAtSize>> &p_fallbacks) const {
+const Pair<const DynamicFontAtSize::Character *, DynamicFontAtSize *> DynamicFontAtSize::_find_char_with_font(char32_t p_char, const Vector<Ref<DynamicFontAtSize>> &p_fallbacks) const {
 	const Character *chr = char_map.getptr(p_char);
 	ERR_FAIL_COND_V(!chr, (Pair<const Character *, DynamicFontAtSize *>(nullptr, nullptr)));
 
@@ -271,7 +271,7 @@ const Pair<const DynamicFontAtSize::Character *, DynamicFontAtSize *> DynamicFon
 	return Pair<const Character *, DynamicFontAtSize *>(chr, const_cast<DynamicFontAtSize *>(this));
 }
 
-Size2 DynamicFontAtSize::get_char_size(CharType p_char, CharType p_next, const Vector<Ref<DynamicFontAtSize>> &p_fallbacks) const {
+Size2 DynamicFontAtSize::get_char_size(char32_t p_char, char32_t p_next, const Vector<Ref<DynamicFontAtSize>> &p_fallbacks) const {
 	if (!valid) {
 		return Size2(1, 1);
 	}
@@ -297,7 +297,7 @@ String DynamicFontAtSize::get_available_chars() const {
 	FT_ULong charcode = FT_Get_First_Char(face, &gindex);
 	while (gindex != 0) {
 		if (charcode != 0) {
-			chars += CharType(charcode);
+			chars += char32_t(charcode);
 		}
 		charcode = FT_Get_Next_Char(face, charcode, &gindex);
 	}
@@ -305,7 +305,7 @@ String DynamicFontAtSize::get_available_chars() const {
 	return chars;
 }
 
-float DynamicFontAtSize::draw_char(RID p_canvas_item, const Point2 &p_pos, CharType p_char, CharType p_next, const Color &p_modulate, const Vector<Ref<DynamicFontAtSize>> &p_fallbacks, bool p_advance_only, bool p_outline) const {
+float DynamicFontAtSize::draw_char(RID p_canvas_item, const Point2 &p_pos, char32_t p_char, char32_t p_next, const Color &p_modulate, const Vector<Ref<DynamicFontAtSize>> &p_fallbacks, bool p_advance_only, bool p_outline) const {
 	if (!valid) {
 		return 0;
 	}
@@ -560,7 +560,7 @@ DynamicFontAtSize::Character DynamicFontAtSize::_bitmap_to_character(FT_Bitmap b
 	return chr;
 }
 
-DynamicFontAtSize::Character DynamicFontAtSize::_make_outline_char(CharType p_char) {
+DynamicFontAtSize::Character DynamicFontAtSize::_make_outline_char(char32_t p_char) {
 	Character ret = Character::not_found();
 
 	if (FT_Load_Char(face, p_char, FT_LOAD_NO_BITMAP | (font->force_autohinter ? FT_LOAD_FORCE_AUTOHINT : 0)) != 0) {
@@ -596,7 +596,7 @@ cleanup_stroker:
 	return ret;
 }
 
-void DynamicFontAtSize::_update_char(CharType p_char) {
+void DynamicFontAtSize::_update_char(char32_t p_char) {
 	if (char_map.has(p_char)) {
 		return;
 	}
@@ -849,7 +849,7 @@ float DynamicFont::get_underline_thickness() const {
 	return data_at_size->get_underline_thickness();
 }
 
-Size2 DynamicFont::get_char_size(CharType p_char, CharType p_next) const {
+Size2 DynamicFont::get_char_size(char32_t p_char, char32_t p_next) const {
 	if (!data_at_size.is_valid()) {
 		return Size2(1, 1);
 	}
@@ -891,7 +891,7 @@ bool DynamicFont::has_outline() const {
 	return outline_cache_id.outline_size > 0;
 }
 
-float DynamicFont::draw_char(RID p_canvas_item, const Point2 &p_pos, CharType p_char, CharType p_next, const Color &p_modulate, bool p_outline) const {
+float DynamicFont::draw_char(RID p_canvas_item, const Point2 &p_pos, char32_t p_char, char32_t p_next, const Color &p_modulate, bool p_outline) const {
 	const Ref<DynamicFontAtSize> &font_at_size = p_outline && outline_cache_id.outline_size > 0 ? outline_data_at_size : data_at_size;
 
 	if (!font_at_size.is_valid()) {
diff --git a/scene/resources/dynamic_font.h b/scene/resources/dynamic_font.h
index e8637e7e34..a881e21da8 100644
--- a/scene/resources/dynamic_font.h
+++ b/scene/resources/dynamic_font.h
@@ -159,17 +159,17 @@ class DynamicFontAtSize : public Reference {
 		int y;
 	};
 
-	const Pair<const Character *, DynamicFontAtSize *> _find_char_with_font(CharType p_char, const Vector<Ref<DynamicFontAtSize>> &p_fallbacks) const;
-	Character _make_outline_char(CharType p_char);
+	const Pair<const Character *, DynamicFontAtSize *> _find_char_with_font(char32_t p_char, const Vector<Ref<DynamicFontAtSize>> &p_fallbacks) const;
+	Character _make_outline_char(char32_t p_char);
 	TexturePosition _find_texture_pos_for_glyph(int p_color_size, Image::Format p_image_format, int p_width, int p_height);
 	Character _bitmap_to_character(FT_Bitmap bitmap, int yofs, int xofs, float advance);
 
 	static unsigned long _ft_stream_io(FT_Stream stream, unsigned long offset, unsigned char *buffer, unsigned long count);
 	static void _ft_stream_close(FT_Stream stream);
 
-	HashMap<CharType, Character> char_map;
+	HashMap<char32_t, Character> char_map;
 
-	_FORCE_INLINE_ void _update_char(CharType p_char);
+	_FORCE_INLINE_ void _update_char(char32_t p_char);
 
 	friend class DynamicFontData;
 	Ref<DynamicFontData> font;
@@ -188,10 +188,10 @@ public:
 	float get_underline_position() const;
 	float get_underline_thickness() const;
 
-	Size2 get_char_size(CharType p_char, CharType p_next, const Vector<Ref<DynamicFontAtSize>> &p_fallbacks) const;
+	Size2 get_char_size(char32_t p_char, char32_t p_next, const Vector<Ref<DynamicFontAtSize>> &p_fallbacks) const;
 	String get_available_chars() const;
 
-	float draw_char(RID p_canvas_item, const Point2 &p_pos, CharType p_char, CharType p_next, const Color &p_modulate, const Vector<Ref<DynamicFontAtSize>> &p_fallbacks, bool p_advance_only = false, bool p_outline = false) const;
+	float draw_char(RID p_canvas_item, const Point2 &p_pos, char32_t p_char, char32_t p_next, const Color &p_modulate, const Vector<Ref<DynamicFontAtSize>> &p_fallbacks, bool p_advance_only = false, bool p_outline = false) const;
 
 	void set_texture_flags(uint32_t p_flags);
 	void update_oversampling();
@@ -277,14 +277,14 @@ public:
 	virtual float get_underline_position() const override;
 	virtual float get_underline_thickness() const override;
 
-	virtual Size2 get_char_size(CharType p_char, CharType p_next = 0) const override;
+	virtual Size2 get_char_size(char32_t p_char, char32_t p_next = 0) const override;
 	String get_available_chars() const;
 
 	virtual bool is_distance_field_hint() const override;
 
 	virtual bool has_outline() const override;
 
-	virtual float draw_char(RID p_canvas_item, const Point2 &p_pos, CharType p_char, CharType p_next = 0, const Color &p_modulate = Color(1, 1, 1), bool p_outline = false) const override;
+	virtual float draw_char(RID p_canvas_item, const Point2 &p_pos, char32_t p_char, char32_t p_next = 0, const Color &p_modulate = Color(1, 1, 1), bool p_outline = false) const override;
 
 	SelfList<DynamicFont> font_list;
 
diff --git a/scene/resources/font.cpp b/scene/resources/font.cpp
index ccab88a153..7cc39f661d 100644
--- a/scene/resources/font.cpp
+++ b/scene/resources/font.cpp
@@ -125,7 +125,7 @@ void BitmapFont::_set_chars(const Vector<int> &p_chars) {
 Vector<int> BitmapFont::_get_chars() const {
 	Vector<int> chars;
 
-	const CharType *key = nullptr;
+	const char32_t *key = nullptr;
 
 	while ((key = char_map.next(key))) {
 		const Character *c = char_map.getptr(*key);
@@ -272,7 +272,7 @@ Error BitmapFont::create_from_fnt(const String &p_file) {
 				}
 			}
 		} else if (type == "char") {
-			CharType idx = 0;
+			char32_t idx = 0;
 			if (keys.has("id")) {
 				idx = keys["id"].to_int();
 			}
@@ -313,7 +313,7 @@ Error BitmapFont::create_from_fnt(const String &p_file) {
 			add_char(idx, texture, rect, ofs, advance);
 
 		} else if (type == "kerning") {
-			CharType first = 0, second = 0;
+			char32_t first = 0, second = 0;
 			int k = 0;
 
 			if (keys.has("first")) {
@@ -385,10 +385,10 @@ int BitmapFont::get_character_count() const {
 	return char_map.size();
 };
 
-Vector<CharType> BitmapFont::get_char_keys() const {
-	Vector<CharType> chars;
+Vector<char32_t> BitmapFont::get_char_keys() const {
+	Vector<char32_t> chars;
 	chars.resize(char_map.size());
-	const CharType *ct = nullptr;
+	const char32_t *ct = nullptr;
 	int count = 0;
 	while ((ct = char_map.next(ct))) {
 		chars.write[count++] = *ct;
@@ -397,7 +397,7 @@ Vector<CharType> BitmapFont::get_char_keys() const {
 	return chars;
 };
 
-BitmapFont::Character BitmapFont::get_character(CharType p_char) const {
+BitmapFont::Character BitmapFont::get_character(char32_t p_char) const {
 	if (!char_map.has(p_char)) {
 		ERR_FAIL_V(Character());
 	};
@@ -405,7 +405,7 @@ BitmapFont::Character BitmapFont::get_character(CharType p_char) const {
 	return char_map[p_char];
 };
 
-void BitmapFont::add_char(CharType p_char, int p_texture_idx, const Rect2 &p_rect, const Size2 &p_align, float p_advance) {
+void BitmapFont::add_char(char32_t p_char, int p_texture_idx, const Rect2 &p_rect, const Size2 &p_align, float p_advance) {
 	if (p_advance < 0) {
 		p_advance = p_rect.size.width;
 	}
@@ -420,7 +420,7 @@ void BitmapFont::add_char(CharType p_char, int p_texture_idx, const Rect2 &p_rec
 	char_map[p_char] = c;
 }
 
-void BitmapFont::add_kerning_pair(CharType p_A, CharType p_B, int p_kerning) {
+void BitmapFont::add_kerning_pair(char32_t p_A, char32_t p_B, int p_kerning) {
 	KerningPairKey kpk;
 	kpk.A = p_A;
 	kpk.B = p_B;
@@ -444,7 +444,7 @@ Vector<BitmapFont::KerningPairKey> BitmapFont::get_kerning_pair_keys() const {
 	return ret;
 }
 
-int BitmapFont::get_kerning_pair(CharType p_A, CharType p_B) const {
+int BitmapFont::get_kerning_pair(char32_t p_A, char32_t p_B) const {
 	KerningPairKey kpk;
 	kpk.A = p_A;
 	kpk.B = p_B;
@@ -482,7 +482,7 @@ Size2 Font::get_string_size(const String &p_string) const {
 	if (l == 0) {
 		return Size2(0, get_height());
 	}
-	const CharType *sptr = &p_string[0];
+	const char32_t *sptr = &p_string[0];
 
 	for (int i = 0; i < l; i++) {
 		w += get_char_size(sptr[i], sptr[i + 1]).width;
@@ -534,7 +534,7 @@ Ref<BitmapFont> BitmapFont::get_fallback() const {
 	return fallback;
 }
 
-float BitmapFont::draw_char(RID p_canvas_item, const Point2 &p_pos, CharType p_char, CharType p_next, const Color &p_modulate, bool p_outline) const {
+float BitmapFont::draw_char(RID p_canvas_item, const Point2 &p_pos, char32_t p_char, char32_t p_next, const Color &p_modulate, bool p_outline) const {
 	const Character *c = char_map.getptr(p_char);
 
 	if (!c) {
@@ -556,7 +556,7 @@ float BitmapFont::draw_char(RID p_canvas_item, const Point2 &p_pos, CharType p_c
 	return get_char_size(p_char, p_next).width;
 }
 
-Size2 BitmapFont::get_char_size(CharType p_char, CharType p_next) const {
+Size2 BitmapFont::get_char_size(char32_t p_char, char32_t p_next) const {
 	const Character *c = char_map.getptr(p_char);
 
 	if (!c) {
diff --git a/scene/resources/font.h b/scene/resources/font.h
index e6b296800b..c739520da3 100644
--- a/scene/resources/font.h
+++ b/scene/resources/font.h
@@ -49,7 +49,7 @@ public:
 	virtual float get_underline_position() const = 0;
 	virtual float get_underline_thickness() const = 0;
 
-	virtual Size2 get_char_size(CharType p_char, CharType p_next = 0) const = 0;
+	virtual Size2 get_char_size(char32_t p_char, char32_t p_next = 0) const = 0;
 	Size2 get_string_size(const String &p_string) const;
 	Size2 get_wordwrap_string_size(const String &p_string, float p_width) const;
 
@@ -59,7 +59,7 @@ public:
 	void draw_halign(RID p_canvas_item, const Point2 &p_pos, HAlign p_align, float p_width, const String &p_text, const Color &p_modulate = Color(1, 1, 1), const Color &p_outline_modulate = Color(1, 1, 1)) const;
 
 	virtual bool has_outline() const { return false; }
-	virtual float draw_char(RID p_canvas_item, const Point2 &p_pos, CharType p_char, CharType p_next = 0, const Color &p_modulate = Color(1, 1, 1), bool p_outline = false) const = 0;
+	virtual float draw_char(RID p_canvas_item, const Point2 &p_pos, char32_t p_char, char32_t p_next = 0, const Color &p_modulate = Color(1, 1, 1), bool p_outline = false) const = 0;
 
 	void update_changes();
 	Font();
@@ -74,8 +74,8 @@ class FontDrawer {
 	struct PendingDraw {
 		RID canvas_item;
 		Point2 pos;
-		CharType chr;
-		CharType next;
+		char32_t chr;
+		char32_t next;
 		Color modulate;
 	};
 
@@ -88,7 +88,7 @@ public:
 		has_outline = p_font->has_outline();
 	}
 
-	float draw_char(RID p_canvas_item, const Point2 &p_pos, CharType p_char, CharType p_next = 0, const Color &p_modulate = Color(1, 1, 1)) {
+	float draw_char(RID p_canvas_item, const Point2 &p_pos, char32_t p_char, char32_t p_next = 0, const Color &p_modulate = Color(1, 1, 1)) {
 		if (has_outline) {
 			PendingDraw draw = { p_canvas_item, p_pos, p_char, p_next, p_modulate };
 			pending_draws.push_back(draw);
@@ -137,7 +137,7 @@ public:
 	};
 
 private:
-	HashMap<CharType, Character> char_map;
+	HashMap<char32_t, Character> char_map;
 	Map<KerningPairKey, int> kerning_map;
 
 	float height;
@@ -169,20 +169,20 @@ public:
 	float get_underline_thickness() const override;
 
 	void add_texture(const Ref<Texture2D> &p_texture);
-	void add_char(CharType p_char, int p_texture_idx, const Rect2 &p_rect, const Size2 &p_align, float p_advance = -1);
+	void add_char(char32_t p_char, int p_texture_idx, const Rect2 &p_rect, const Size2 &p_align, float p_advance = -1);
 
 	int get_character_count() const;
-	Vector<CharType> get_char_keys() const;
-	Character get_character(CharType p_char) const;
+	Vector<char32_t> get_char_keys() const;
+	Character get_character(char32_t p_char) const;
 
 	int get_texture_count() const;
 	Ref<Texture2D> get_texture(int p_idx) const;
 
-	void add_kerning_pair(CharType p_A, CharType p_B, int p_kerning);
-	int get_kerning_pair(CharType p_A, CharType p_B) const;
+	void add_kerning_pair(char32_t p_A, char32_t p_B, int p_kerning);
+	int get_kerning_pair(char32_t p_A, char32_t p_B) const;
 	Vector<KerningPairKey> get_kerning_pair_keys() const;
 
-	Size2 get_char_size(CharType p_char, CharType p_next = 0) const override;
+	Size2 get_char_size(char32_t p_char, char32_t p_next = 0) const override;
 
 	void set_fallback(const Ref<BitmapFont> &p_fallback);
 	Ref<BitmapFont> get_fallback() const;
@@ -192,7 +192,7 @@ public:
 	void set_distance_field_hint(bool p_distance_field);
 	bool is_distance_field_hint() const override;
 
-	float draw_char(RID p_canvas_item, const Point2 &p_pos, CharType p_char, CharType p_next = 0, const Color &p_modulate = Color(1, 1, 1), bool p_outline = false) const override;
+	float draw_char(RID p_canvas_item, const Point2 &p_pos, char32_t p_char, char32_t p_next = 0, const Color &p_modulate = Color(1, 1, 1), bool p_outline = false) const override;
 
 	BitmapFont();
 	~BitmapFont();
diff --git a/scene/resources/syntax_highlighter.cpp b/scene/resources/syntax_highlighter.cpp
index 3500f6f01e..d7a08d9eb6 100644
--- a/scene/resources/syntax_highlighter.cpp
+++ b/scene/resources/syntax_highlighter.cpp
@@ -125,11 +125,11 @@ void SyntaxHighlighter::_bind_methods() {
 
 ////////////////////////////////////////////////////////////////////////////////
 
-static bool _is_char(CharType c) {
+static bool _is_char(char32_t c) {
 	return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_';
 }
 
-static bool _is_hex_symbol(CharType c) {
+static bool _is_hex_symbol(char32_t c) {
 	return ((c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F'));
 }
 
@@ -195,7 +195,7 @@ Dictionary CodeHighlighter::_get_line_syntax_highlighting(int p_line) {
 
 						/* search the line */
 						bool match = true;
-						const CharType *start_key = color_regions[c].start_key.c_str();
+						const char32_t *start_key = color_regions[c].start_key.get_data();
 						for (int k = 0; k < start_key_length; k++) {
 							if (start_key[k] != str[from + k]) {
 								match = false;
@@ -232,7 +232,7 @@ Dictionary CodeHighlighter::_get_line_syntax_highlighting(int p_line) {
 					/* search the line */
 					int region_end_index = -1;
 					int end_key_length = color_regions[in_region].end_key.length();
-					const CharType *end_key = color_regions[in_region].end_key.c_str();
+					const char32_t *end_key = color_regions[in_region].end_key.get_data();
 					for (; from < line_length; from++) {
 						if (line_length - from < end_key_length) {
 							break;
diff --git a/scene/resources/tile_set.cpp b/scene/resources/tile_set.cpp
index 6992360df7..84b067d1e2 100644
--- a/scene/resources/tile_set.cpp
+++ b/scene/resources/tile_set.cpp
@@ -40,7 +40,7 @@ bool TileSet::_set(const StringName &p_name, const Variant &p_value) {
 	if (slash == -1) {
 		return false;
 	}
-	int id = String::to_int(n.c_str(), slash);
+	int id = String::to_int(n.get_data(), slash);
 
 	if (!tile_map.has(id)) {
 		create_tile(id);
@@ -216,7 +216,7 @@ bool TileSet::_get(const StringName &p_name, Variant &r_ret) const {
 	if (slash == -1) {
 		return false;
 	}
-	int id = String::to_int(n.c_str(), slash);
+	int id = String::to_int(n.get_data(), slash);
 
 	ERR_FAIL_COND_V(!tile_map.has(id), false);