initial commit, 4.5 stable

core/string/string_builder.h

@@ -0,0 +1,81 @@
+/**************************************************************************/
+/*  string_builder.h                                                      */
+/**************************************************************************/
+/*                         This file is part of:                          */
+/*                             GODOT ENGINE                               */
+/*                        https://godotengine.org                         */
+/**************************************************************************/
+/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
+/*                                                                        */
+/* Permission is hereby granted, free of charge, to any person obtaining  */
+/* a copy of this software and associated documentation files (the        */
+/* "Software"), to deal in the Software without restriction, including    */
+/* without limitation the rights to use, copy, modify, merge, publish,    */
+/* distribute, sublicense, and/or sell copies of the Software, and to     */
+/* permit persons to whom the Software is furnished to do so, subject to  */
+/* the following conditions:                                              */
+/*                                                                        */
+/* The above copyright notice and this permission notice shall be         */
+/* included in all copies or substantial portions of the Software.        */
+/*                                                                        */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,        */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF     */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY   */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,   */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE      */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                 */
+/**************************************************************************/
+
+#pragma once
+
+#include "core/string/ustring.h"
+#include "core/templates/local_vector.h"
+
+class StringBuilder {
+	uint32_t string_length = 0;
+
+	LocalVector<String> strings;
+	LocalVector<const char *> c_strings;
+
+	// -1 means it's a Godot String
+	// a natural number means C string.
+	LocalVector<int32_t> appended_strings;
+
+public:
+	StringBuilder &append(const String &p_string);
+	StringBuilder &append(const char *p_cstring);
+
+	_FORCE_INLINE_ StringBuilder &operator+(const String &p_string) {
+		return append(p_string);
+	}
+
+	_FORCE_INLINE_ StringBuilder &operator+(const char *p_cstring) {
+		return append(p_cstring);
+	}
+
+	_FORCE_INLINE_ void operator+=(const String &p_string) {
+		append(p_string);
+	}
+
+	_FORCE_INLINE_ void operator+=(const char *p_cstring) {
+		append(p_cstring);
+	}
+
+	_FORCE_INLINE_ int num_strings_appended() const {
+		return appended_strings.size();
+	}
+
+	_FORCE_INLINE_ uint32_t get_string_length() const {
+		return string_length;
+	}
+
+	String as_string() const;
+
+	_FORCE_INLINE_ operator String() const {
+		return as_string();
+	}
+
+	StringBuilder() {}
+};