Added StringBuffer and StringBuilder from Pandemonium.

compile_linux.sh

@@ -35,6 +35,7 @@ ccache g++ -Wall -D_REENTRANT -g -Isfw -c sfw/core/pool_vector.cpp -o sfw/core/p
 ccache g++ -Wall -D_REENTRANT -g -Isfw -c sfw/core/pool_allocator.cpp -o sfw/core/pool_allocator.o
 ccache g++ -Wall -D_REENTRANT -g -Isfw -c sfw/core/mutex.cpp -o sfw/core/mutex.o
 ccache g++ -Wall -D_REENTRANT -g -Isfw -c sfw/core/sfw_time.cpp -o sfw/core/sfw_time.o
+ccache g++ -Wall -D_REENTRANT -g -Isfw -c sfw/core/string_builder.cpp -o sfw/core/string_builder.o
 
 ccache g++ -Wall -D_REENTRANT -g -Isfw -c sfw/core/thread.cpp -o sfw/core/thread.o
 ccache g++ -Wall -D_REENTRANT -g -Isfw -c sfw/core/socket.cpp -o sfw/core/socket.o
@@ -108,6 +109,7 @@ ccache g++ -Wall -D_REENTRANT -g sfw/core/aabb.o sfw/core/basis.o sfw/core/color
                         sfw/core/vector2.o sfw/core/vector2i.o sfw/core/vector3.o \
                         sfw/core/vector3i.o sfw/core/vector4.o sfw/core/vector4i.o \
                         sfw/core/pool_vector.o sfw/core/pool_allocator.o sfw/core/mutex.o sfw/core/sfw_time.o \
+												sfw/core/string_builder.o \
                         sfw/core/dir_access.o sfw/core/file_access.o sfw/core/thread.o \
                         sfw/core/socket.o sfw/core/inet_address.o \
                         sfw/core/sub_process.o \

compile_linux_sfwl.sh

@@ -22,6 +22,7 @@ ccache g++ -Wall -D_REENTRANT -g -Isfwl -c sfwl/core/pool_vector.cpp -o sfwl/cor
 ccache g++ -Wall -D_REENTRANT -g -Isfwl -c sfwl/core/pool_allocator.cpp -o sfwl/core/pool_allocator.o
 ccache g++ -Wall -D_REENTRANT -g -Isfwl -c sfwl/core/mutex.cpp -o sfwl/core/mutex.o
 ccache g++ -Wall -D_REENTRANT -g -Isfwl -c sfwl/core/sfw_time.cpp -o sfwl/core/sfw_time.o
+ccache g++ -Wall -D_REENTRANT -g -Isfwl -c sfwl/core/string_builder.cpp -o sfwl/core/string_builder.o
 
 ccache g++ -Wall -D_REENTRANT -g -Isfwl -c sfwl/core/thread.cpp -o sfwl/core/thread.o
 ccache g++ -Wall -D_REENTRANT -g -Isfwl -c sfwl/core/socket.cpp -o sfwl/core/socket.o
@@ -52,6 +53,7 @@ ccache g++ -Wall -D_REENTRANT -g  sfwl/core/color.o sfwl/core/rect2i.o sfwl/core
                         sfwl/core/safe_refcount.o \
                         sfwl/core/ustring.o sfwl/core/string_name.o \
                         sfwl/core/pool_vector.o sfwl/core/pool_allocator.o sfwl/core/mutex.o sfwl/core/sfw_time.o \
+												sfwl/core/string_builder.o \
                         sfwl/core/dir_access.o sfwl/core/file_access.o sfwl/core/thread.o \
                         sfwl/core/socket.o sfwl/core/inet_address.o \
                         sfwl/core/sub_process.o \

compile_osx.sh

@@ -46,6 +46,7 @@ clang++ $args -D_REENTRANT -g -Isfw -c sfw/core/pool_vector.cpp -o sfw/core/pool
 clang++ $args -D_REENTRANT -g -Isfw -c sfw/core/pool_allocator.cpp -o sfw/core/pool_allocator.o
 clang++ $args -D_REENTRANT -g -Isfw -c sfw/core/mutex.cpp -o sfw/core/mutex.o
 clang++ $args -D_REENTRANT -g -Isfw -c sfw/core/sfw_time.cpp -o sfw/core/sfw_time.o
+clang++ $args -D_REENTRANT -g -Isfw -c sfw/core/string_builder.cpp -o sfw/core/string_builder.o
 
 clang++ $args -D_REENTRANT -g -Isfw -c sfw/core/thread.cpp -o sfw/core/thread.o
 clang++ $args -D_REENTRANT -g -Isfw -c sfw/core/socket.cpp -o sfw/core/socket.o
@@ -121,6 +122,7 @@ clang++ $args -D_REENTRANT -g sfw/core/aabb.o sfw/core/basis.o sfw/core/color.o
                         sfw/core/vector2.o sfw/core/vector2i.o sfw/core/vector3.o \
                         sfw/core/vector3i.o sfw/core/vector4.o sfw/core/vector4i.o \
                         sfw/core/pool_vector.o sfw/core/pool_allocator.o sfw/core/mutex.o sfw/core/sfw_time.o \
+												sfw/core/string_builder.o \
                         sfw/core/dir_access.o sfw/core/file_access.o sfw/core/thread.o \
                         sfw/core/socket.o sfw/core/inet_address.o \
                         sfw/core/sub_process.o \

compile_osx_sfwl.sh

@@ -18,6 +18,7 @@ clang++ -std=c++14 -D_REENTRANT -g -Isfwl -c sfwl/core/pool_vector.cpp -o sfwl/c
 clang++ -std=c++14 -D_REENTRANT -g -Isfwl -c sfwl/core/pool_allocator.cpp -o sfwl/core/pool_allocator.o
 clang++ -std=c++14 -D_REENTRANT -g -Isfwl -c sfwl/core/mutex.cpp -o sfwl/core/mutex.o
 clang++ -std=c++14 -D_REENTRANT -g -Isfwl -c sfwl/core/sfw_time.cpp -o sfwl/core/sfw_time.o
+clang++ -std=c++14 -D_REENTRANT -g -Isfwl -c sfwl/core/string_builder.cpp -o sfwl/core/string_builder.o
 
 clang++ -std=c++14 -D_REENTRANT -g -Isfwl -c sfwl/core/thread.cpp -o sfwl/core/thread.o
 clang++ -std=c++14 -D_REENTRANT -g -Isfwl -c sfwl/core/socket.cpp -o sfwl/core/socket.o
@@ -49,6 +50,7 @@ clang++ -std=c++14 -D_REENTRANT -g sfwl/core/color.o \
                         sfwl/core/ustring.o sfwl/core/string_name.o \
                         sfwl/core/vector2i.o \
                         sfwl/core/pool_vector.o sfwl/core/pool_allocator.o sfwl/core/mutex.o sfwl/core/sfw_time.o \
+												sfwl/core/string_builder.o \
                         sfwl/core/dir_access.o sfwl/core/file_access.o sfwl/core/thread.o \
                         sfwl/core/socket.o sfwl/core/inet_address.o \
                         sfwl/core/sub_process.o \

compile_vs.bat

@@ -41,6 +41,7 @@ cl /D_REENTRANT /EHsc /Zi /Isfw /c sfw/core/pool_vector.cpp /Fo:sfw/core/pool_ve
 cl /D_REENTRANT /EHsc /Zi /Isfw /c sfw/core/pool_allocator.cpp /Fo:sfw/core/pool_allocator.obj
 cl /D_REENTRANT /EHsc /Zi /Isfw /c sfw/core/mutex.cpp /Fo:sfw/core/mutex.obj
 cl /D_REENTRANT /EHsc /Zi /Isfw /c sfw/core/sfw_time.cpp /Fo:sfw/core/sfw_time.obj
+cl /D_REENTRANT /EHsc /Zi /Isfw /c sfw/core/string_builder.cpp /Fo:sfw/core/string_builder.obj
 
 cl /D_REENTRANT /EHsc /Zi /Isfw /c sfw/core/thread.cpp /Fo:sfw/core/thread.obj
 cl /D_REENTRANT /EHsc /Zi /Isfw /c sfw/core/socket.cpp /Fo:sfw/core/socket.obj
@@ -118,6 +119,7 @@ cl /D_REENTRANT /Zi ^
 		sfw/core/vector2.obj sfw/core/vector2i.obj sfw/core/vector3.obj ^
 		sfw/core/vector3i.obj sfw/core/vector4.obj sfw/core/vector4i.obj ^
 		sfw/core/pool_vector.obj sfw/core/pool_allocator.obj sfw/core/mutex.obj sfw/core/sfw_time.obj ^
+		sfw/core/string_builder.obj ^
 		sfw/core/dir_access.obj sfw/core/file_access.obj sfw/core/thread.obj ^
 		sfw/core/socket.obj sfw/core/inet_address.obj ^
 		sfw/core/sub_process.obj ^

compile_vs_sfwl.bat

@@ -27,6 +27,7 @@ cl /D_REENTRANT /EHsc /Zi /Isfwl /c sfwl/core/pool_vector.cpp /Fo:sfwl/core/pool
 cl /D_REENTRANT /EHsc /Zi /Isfwl /c sfwl/core/pool_allocator.cpp /Fo:sfwl/core/pool_allocator.obj
 cl /D_REENTRANT /EHsc /Zi /Isfwl /c sfwl/core/mutex.cpp /Fo:sfwl/core/mutex.obj
 cl /D_REENTRANT /EHsc /Zi /Isfwl /c sfwl/core/sfw_time.cpp /Fo:sfwl/core/sfw_time.obj
+cl /D_REENTRANT /EHsc /Zi /Isfwl /c sfwl/core/string_builder.cpp /Fo:sfwl/core/string_builder.obj
 
 cl /D_REENTRANT /EHsc /Zi /Isfwl /c sfwl/core/thread.cpp /Fo:sfwl/core/thread.obj
 cl /D_REENTRANT /EHsc /Zi /Isfwl /c sfwl/core/socket.cpp /Fo:sfwl/core/socket.obj
@@ -60,6 +61,7 @@ cl /D_REENTRANT /Zi ^
 		sfwl/core/ustring.obj sfwl/core/string_name.obj ^
 		sfwl/core/vector2i.obj ^
 		sfwl/core/pool_vector.obj sfwl/core/pool_allocator.obj sfwl/core/mutex.obj sfwl/core/sfw_time.obj ^
+		sfwl/core/string_builder.obj ^
 		sfwl/core/dir_access.obj sfwl/core/file_access.obj sfwl/core/thread.obj ^
 		sfwl/core/socket.obj sfwl/core/inet_address.obj ^
 		sfwl/core/sub_process.obj ^

compile_windows.sh

@@ -35,6 +35,7 @@ ccache g++ -Wall -D_REENTRANT -g -Isfw -c sfw/core/pool_vector.cpp -o sfw/core/p
 ccache g++ -Wall -D_REENTRANT -g -Isfw -c sfw/core/pool_allocator.cpp -o sfw/core/pool_allocator.o
 ccache g++ -Wall -D_REENTRANT -g -Isfw -c sfw/core/mutex.cpp -o sfw/core/mutex.o
 ccache g++ -Wall -D_REENTRANT -g -Isfw -c sfw/core/sfw_time.cpp -o sfw/core/sfw_time.o
+ccache g++ -Wall -D_REENTRANT -g -Isfw -c sfw/core/string_builder.cpp -o sfw/core/string_builder.o
 
 ccache g++ -Wall -D_REENTRANT -g -Isfw -c sfw/core/thread.cpp -o sfw/core/thread.o
 ccache g++ -Wall -D_REENTRANT -g -Isfw -c sfw/core/socket.cpp -o sfw/core/socket.o
@@ -109,6 +110,7 @@ ccache g++ -Wall \
                         sfw/core/vector2.o sfw/core/vector2i.o sfw/core/vector3.o \
                         sfw/core/vector3i.o sfw/core/vector4.o sfw/core/vector4i.o \
                         sfw/core/pool_vector.o sfw/core/pool_allocator.o sfw/core/mutex.o sfw/core/sfw_time.o \
+												sfw/core/string_builder.o \
                         sfw/core/dir_access.o sfw/core/file_access.o sfw/core/thread.o \
                         sfw/core/socket.o sfw/core/inet_address.o \
                         sfw/core/sub_process.o \

compile_windows_sfwl.sh

@@ -20,6 +20,7 @@ ccache g++ -Wall -D_REENTRANT -g -Isfwl -c sfwl/core/pool_vector.cpp -o sfwl/cor
 ccache g++ -Wall -D_REENTRANT -g -Isfwl -c sfwl/core/pool_allocator.cpp -o sfwl/core/pool_allocator.o
 ccache g++ -Wall -D_REENTRANT -g -Isfwl -c sfwl/core/mutex.cpp -o sfwl/core/mutex.o
 ccache g++ -Wall -D_REENTRANT -g -Isfwl -c sfwl/core/sfw_time.cpp -o sfwl/core/sfw_time.o
+ccache g++ -Wall -D_REENTRANT -g -Isfwl -c sfwl/core/string_builder.cpp -o sfwl/core/string_builder.o
 
 ccache g++ -Wall -D_REENTRANT -g -Isfwl -c sfwl/core/thread.cpp -o sfwl/core/thread.o
 ccache g++ -Wall -D_REENTRANT -g -Isfwl -c sfwl/core/socket.cpp -o sfwl/core/socket.o
@@ -52,6 +53,7 @@ ccache g++ -Wall \
                         sfwl/core/ustring.o sfwl/core/string_name.o \
                         sfwl/core/vector2i.o \
                         sfwl/core/pool_vector.o sfwl/core/pool_allocator.o sfwl/core/mutex.o sfwl/core/sfw_time.o \
+												sfwl/core/string_builder.o \
                         sfwl/core/dir_access.o sfwl/core/file_access.o sfwl/core/thread.o \
                         sfwl/core/socket.o sfwl/core/inet_address.o \
                         sfwl/core/sub_process.o \

sfw/core/safe_refcount.h

@@ -110,7 +110,7 @@ public:
 		}
 	}
 
-	_ALWAYS_INLINE_ explicit SafeNumeric<T>(T p_value = static_cast<T>(0)) {
+	_ALWAYS_INLINE_ explicit SafeNumeric(T p_value = static_cast<T>(0)) {
 		set(p_value);
 	}
 };
@@ -236,7 +236,7 @@ public:
 		}
 	}
 
-	_ALWAYS_INLINE_ explicit SafeNumeric<T>(T p_value = static_cast<T>(0)) :
+	_ALWAYS_INLINE_ explicit SafeNumeric(T p_value = static_cast<T>(0)) :
 			value(p_value) {
 	}
 };

sfw/core/string_buffer.h

@@ -0,0 +1,147 @@
+//--STRIP
+#ifndef STRING_BUFFER_H
+#define STRING_BUFFER_H
+//--STRIP
+
+/*************************************************************************/
+/*  string_buffer.h                                                      */
+/*  From https://github.com/Relintai/pandemonium_engine (MIT)            */
+/*************************************************************************/
+
+//--STRIP
+#include "core/ustring.h"
+//--STRIP
+
+template <int SHORT_BUFFER_SIZE = 64>
+class StringBuffer {
+	CharType short_buffer[SHORT_BUFFER_SIZE];
+	String buffer;
+	int string_length;
+
+	_FORCE_INLINE_ CharType *current_buffer_ptr() {
+		return static_cast<String &>(buffer).empty() ? short_buffer : buffer.ptrw();
+	}
+
+public:
+	StringBuffer &append(CharType p_char);
+	StringBuffer &append(const String &p_string);
+	StringBuffer &append(const char *p_str);
+	StringBuffer &append(const CharType *p_str, int p_clip_to_len = -1);
+
+	_FORCE_INLINE_ void operator+=(CharType p_char) {
+		append(p_char);
+	}
+
+	_FORCE_INLINE_ void operator+=(const String &p_string) {
+		append(p_string);
+	}
+
+	_FORCE_INLINE_ void operator+=(const char *p_str) {
+		append(p_str);
+	}
+
+	_FORCE_INLINE_ void operator+=(const CharType *p_str) {
+		append(p_str);
+	}
+
+	StringBuffer &reserve(int p_size);
+
+	int length() const;
+
+	String as_string();
+
+	double as_double();
+	int64_t as_int();
+
+	_FORCE_INLINE_ operator String() {
+		return as_string();
+	}
+
+	StringBuffer() {
+		string_length = 0;
+	}
+};
+
+template <int SHORT_BUFFER_SIZE>
+StringBuffer<SHORT_BUFFER_SIZE> &StringBuffer<SHORT_BUFFER_SIZE>::append(CharType p_char) {
+	reserve(string_length + 2);
+	current_buffer_ptr()[string_length++] = p_char;
+	return *this;
+}
+
+template <int SHORT_BUFFER_SIZE>
+StringBuffer<SHORT_BUFFER_SIZE> &StringBuffer<SHORT_BUFFER_SIZE>::append(const String &p_string) {
+	return append(p_string.get_data());
+}
+
+template <int SHORT_BUFFER_SIZE>
+StringBuffer<SHORT_BUFFER_SIZE> &StringBuffer<SHORT_BUFFER_SIZE>::append(const char *p_str) {
+	int len = strlen(p_str);
+	reserve(string_length + len + 1);
+
+	CharType *buf = current_buffer_ptr();
+	for (const char *c_ptr = p_str; *c_ptr; ++c_ptr) {
+		buf[string_length++] = *c_ptr;
+	}
+	return *this;
+}
+
+template <int SHORT_BUFFER_SIZE>
+StringBuffer<SHORT_BUFFER_SIZE> &StringBuffer<SHORT_BUFFER_SIZE>::append(const CharType *p_str, int p_clip_to_len) {
+	int len = 0;
+	while ((p_clip_to_len < 0 || len < p_clip_to_len) && p_str[len]) {
+		++len;
+	}
+	reserve(string_length + len + 1);
+	memcpy(&(current_buffer_ptr()[string_length]), p_str, len * sizeof(CharType));
+	string_length += len;
+
+	return *this;
+}
+
+template <int SHORT_BUFFER_SIZE>
+StringBuffer<SHORT_BUFFER_SIZE> &StringBuffer<SHORT_BUFFER_SIZE>::reserve(int p_size) {
+	if (p_size < SHORT_BUFFER_SIZE || p_size < buffer.size()) {
+		return *this;
+	}
+
+	bool need_copy = string_length > 0 && buffer.empty();
+	buffer.resize(next_power_of_2(p_size));
+	if (need_copy) {
+		memcpy(buffer.ptrw(), short_buffer, string_length * sizeof(CharType));
+	}
+
+	return *this;
+}
+
+template <int SHORT_BUFFER_SIZE>
+int StringBuffer<SHORT_BUFFER_SIZE>::length() const {
+	return string_length;
+}
+
+template <int SHORT_BUFFER_SIZE>
+String StringBuffer<SHORT_BUFFER_SIZE>::as_string() {
+	current_buffer_ptr()[string_length] = '\0';
+	if (buffer.empty()) {
+		return String(short_buffer);
+	} else {
+		buffer.resize(string_length + 1);
+		return buffer;
+	}
+}
+
+template <int SHORT_BUFFER_SIZE>
+double StringBuffer<SHORT_BUFFER_SIZE>::as_double() {
+	current_buffer_ptr()[string_length] = '\0';
+	return String::to_double(current_buffer_ptr());
+}
+
+template <int SHORT_BUFFER_SIZE>
+int64_t StringBuffer<SHORT_BUFFER_SIZE>::as_int() {
+	current_buffer_ptr()[string_length] = '\0';
+	return String::to_int(current_buffer_ptr());
+}
+
+//--STRIP
+#endif
+//--STRIP

sfw/core/string_builder.cpp

@@ -0,0 +1,83 @@
+/*************************************************************************/
+/*  string_builder.cpp                                                   */
+/*  From https://github.com/Relintai/pandemonium_engine (MIT)            */
+/*************************************************************************/
+
+//--STRIP
+#include "string_builder.h"
+
+#include <string.h>
+//--STRIP
+
+StringBuilder &StringBuilder::append(const String &p_string) {
+	if (p_string == String()) {
+		return *this;
+	}
+
+	strings.push_back(p_string);
+	appended_strings.push_back(-1);
+
+	string_length += p_string.length();
+
+	return *this;
+}
+
+StringBuilder &StringBuilder::append(const char *p_cstring) {
+	int32_t len = strlen(p_cstring);
+
+	c_strings.push_back(p_cstring);
+	appended_strings.push_back(len);
+
+	string_length += len;
+
+	return *this;
+}
+
+void StringBuilder::clear() {
+	string_length = 0;
+	strings.clear();
+	c_strings.clear();
+	appended_strings.clear();
+}
+
+String StringBuilder::as_string() const {
+	if (string_length == 0) {
+		return "";
+	}
+
+	CharType *buffer = memnew_arr(CharType, string_length);
+
+	int current_position = 0;
+
+	int pandemonium_string_elem = 0;
+	int c_string_elem = 0;
+
+	for (int i = 0; i < appended_strings.size(); i++) {
+		if (appended_strings[i] == -1) {
+			// Pandemonium string
+			const String &s = strings[pandemonium_string_elem];
+
+			memcpy(buffer + current_position, s.ptr(), s.length() * sizeof(CharType));
+
+			current_position += s.length();
+
+			pandemonium_string_elem++;
+		} else {
+			const char *s = c_strings[c_string_elem];
+
+			for (int32_t j = 0; j < appended_strings[i]; j++) {
+				buffer[current_position + j] = s[j];
+			}
+
+			current_position += appended_strings[i];
+
+			c_string_elem++;
+		}
+	}
+
+	String final_string = String(buffer, string_length);
+
+	memdelete_arr(buffer);
+
+	return final_string;
+}

sfw/core/string_builder.h

@@ -0,0 +1,74 @@
+//--STRIP
+#ifndef STRING_BUILDER_H
+#define STRING_BUILDER_H
+//--STRIP
+
+/*************************************************************************/
+/*  string_builder.h                                                     */
+/*  From https://github.com/Relintai/pandemonium_engine (MIT)            */
+/*************************************************************************/
+
+//--STRIP
+#include "core/ustring.h"
+
+#include "core/vector.h"
+//--STRIP
+
+class StringBuilder {
+	uint32_t string_length;
+
+	Vector<String> strings;
+	Vector<const char *> c_strings;
+
+	// -1 means it's a Pandemonium String
+	// a natural number means C string.
+	Vector<int32_t> appended_strings;
+
+public:
+	StringBuilder &append(const String &p_string);
+	StringBuilder &append(const char *p_cstring);
+
+	void clear();
+
+	_FORCE_INLINE_ uint32_t length() {
+		return string_length;
+	}
+
+	_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() {
+		string_length = 0;
+	}
+};
+
+//--STRIP
+#endif // STRING_BUILDER_H
+//--STRIP

sfwl/core/safe_refcount.h

@@ -110,7 +110,7 @@ public:
 		}
 	}
 
-	_ALWAYS_INLINE_ explicit SafeNumeric<T>(T p_value = static_cast<T>(0)) {
+	_ALWAYS_INLINE_ explicit SafeNumeric(T p_value = static_cast<T>(0)) {
 		set(p_value);
 	}
 };
@@ -236,7 +236,7 @@ public:
 		}
 	}
 
-	_ALWAYS_INLINE_ explicit SafeNumeric<T>(T p_value = static_cast<T>(0)) :
+	_ALWAYS_INLINE_ explicit SafeNumeric(T p_value = static_cast<T>(0)) :
 			value(p_value) {
 	}
 };

sfwl/core/string_buffer.h

@@ -0,0 +1,147 @@
+//--STRIP
+#ifndef STRING_BUFFER_H
+#define STRING_BUFFER_H
+//--STRIP
+
+/*************************************************************************/
+/*  string_buffer.h                                                      */
+/*  From https://github.com/Relintai/pandemonium_engine (MIT)            */
+/*************************************************************************/
+
+//--STRIP
+#include "core/ustring.h"
+//--STRIP
+
+template <int SHORT_BUFFER_SIZE = 64>
+class StringBuffer {
+	CharType short_buffer[SHORT_BUFFER_SIZE];
+	String buffer;
+	int string_length;
+
+	_FORCE_INLINE_ CharType *current_buffer_ptr() {
+		return static_cast<String &>(buffer).empty() ? short_buffer : buffer.ptrw();
+	}
+
+public:
+	StringBuffer &append(CharType p_char);
+	StringBuffer &append(const String &p_string);
+	StringBuffer &append(const char *p_str);
+	StringBuffer &append(const CharType *p_str, int p_clip_to_len = -1);
+
+	_FORCE_INLINE_ void operator+=(CharType p_char) {
+		append(p_char);
+	}
+
+	_FORCE_INLINE_ void operator+=(const String &p_string) {
+		append(p_string);
+	}
+
+	_FORCE_INLINE_ void operator+=(const char *p_str) {
+		append(p_str);
+	}
+
+	_FORCE_INLINE_ void operator+=(const CharType *p_str) {
+		append(p_str);
+	}
+
+	StringBuffer &reserve(int p_size);
+
+	int length() const;
+
+	String as_string();
+
+	double as_double();
+	int64_t as_int();
+
+	_FORCE_INLINE_ operator String() {
+		return as_string();
+	}
+
+	StringBuffer() {
+		string_length = 0;
+	}
+};
+
+template <int SHORT_BUFFER_SIZE>
+StringBuffer<SHORT_BUFFER_SIZE> &StringBuffer<SHORT_BUFFER_SIZE>::append(CharType p_char) {
+	reserve(string_length + 2);
+	current_buffer_ptr()[string_length++] = p_char;
+	return *this;
+}
+
+template <int SHORT_BUFFER_SIZE>
+StringBuffer<SHORT_BUFFER_SIZE> &StringBuffer<SHORT_BUFFER_SIZE>::append(const String &p_string) {
+	return append(p_string.get_data());
+}
+
+template <int SHORT_BUFFER_SIZE>
+StringBuffer<SHORT_BUFFER_SIZE> &StringBuffer<SHORT_BUFFER_SIZE>::append(const char *p_str) {
+	int len = strlen(p_str);
+	reserve(string_length + len + 1);
+
+	CharType *buf = current_buffer_ptr();
+	for (const char *c_ptr = p_str; *c_ptr; ++c_ptr) {
+		buf[string_length++] = *c_ptr;
+	}
+	return *this;
+}
+
+template <int SHORT_BUFFER_SIZE>
+StringBuffer<SHORT_BUFFER_SIZE> &StringBuffer<SHORT_BUFFER_SIZE>::append(const CharType *p_str, int p_clip_to_len) {
+	int len = 0;
+	while ((p_clip_to_len < 0 || len < p_clip_to_len) && p_str[len]) {
+		++len;
+	}
+	reserve(string_length + len + 1);
+	memcpy(&(current_buffer_ptr()[string_length]), p_str, len * sizeof(CharType));
+	string_length += len;
+
+	return *this;
+}
+
+template <int SHORT_BUFFER_SIZE>
+StringBuffer<SHORT_BUFFER_SIZE> &StringBuffer<SHORT_BUFFER_SIZE>::reserve(int p_size) {
+	if (p_size < SHORT_BUFFER_SIZE || p_size < buffer.size()) {
+		return *this;
+	}
+
+	bool need_copy = string_length > 0 && buffer.empty();
+	buffer.resize(next_power_of_2(p_size));
+	if (need_copy) {
+		memcpy(buffer.ptrw(), short_buffer, string_length * sizeof(CharType));
+	}
+
+	return *this;
+}
+
+template <int SHORT_BUFFER_SIZE>
+int StringBuffer<SHORT_BUFFER_SIZE>::length() const {
+	return string_length;
+}
+
+template <int SHORT_BUFFER_SIZE>
+String StringBuffer<SHORT_BUFFER_SIZE>::as_string() {
+	current_buffer_ptr()[string_length] = '\0';
+	if (buffer.empty()) {
+		return String(short_buffer);
+	} else {
+		buffer.resize(string_length + 1);
+		return buffer;
+	}
+}
+
+template <int SHORT_BUFFER_SIZE>
+double StringBuffer<SHORT_BUFFER_SIZE>::as_double() {
+	current_buffer_ptr()[string_length] = '\0';
+	return String::to_double(current_buffer_ptr());
+}
+
+template <int SHORT_BUFFER_SIZE>
+int64_t StringBuffer<SHORT_BUFFER_SIZE>::as_int() {
+	current_buffer_ptr()[string_length] = '\0';
+	return String::to_int(current_buffer_ptr());
+}
+
+//--STRIP
+#endif
+//--STRIP

sfwl/core/string_builder.cpp

@@ -0,0 +1,83 @@
+/*************************************************************************/
+/*  string_builder.cpp                                                   */
+/*  From https://github.com/Relintai/pandemonium_engine (MIT)            */
+/*************************************************************************/
+
+//--STRIP
+#include "string_builder.h"
+
+#include <string.h>
+//--STRIP
+
+StringBuilder &StringBuilder::append(const String &p_string) {
+	if (p_string == String()) {
+		return *this;
+	}
+
+	strings.push_back(p_string);
+	appended_strings.push_back(-1);
+
+	string_length += p_string.length();
+
+	return *this;
+}
+
+StringBuilder &StringBuilder::append(const char *p_cstring) {
+	int32_t len = strlen(p_cstring);
+
+	c_strings.push_back(p_cstring);
+	appended_strings.push_back(len);
+
+	string_length += len;
+
+	return *this;
+}
+
+void StringBuilder::clear() {
+	string_length = 0;
+	strings.clear();
+	c_strings.clear();
+	appended_strings.clear();
+}
+
+String StringBuilder::as_string() const {
+	if (string_length == 0) {
+		return "";
+	}
+
+	CharType *buffer = memnew_arr(CharType, string_length);
+
+	int current_position = 0;
+
+	int pandemonium_string_elem = 0;
+	int c_string_elem = 0;
+
+	for (int i = 0; i < appended_strings.size(); i++) {
+		if (appended_strings[i] == -1) {
+			// Pandemonium string
+			const String &s = strings[pandemonium_string_elem];
+
+			memcpy(buffer + current_position, s.ptr(), s.length() * sizeof(CharType));
+
+			current_position += s.length();
+
+			pandemonium_string_elem++;
+		} else {
+			const char *s = c_strings[c_string_elem];
+
+			for (int32_t j = 0; j < appended_strings[i]; j++) {
+				buffer[current_position + j] = s[j];
+			}
+
+			current_position += appended_strings[i];
+
+			c_string_elem++;
+		}
+	}
+
+	String final_string = String(buffer, string_length);
+
+	memdelete_arr(buffer);
+
+	return final_string;
+}

sfwl/core/string_builder.h

@@ -0,0 +1,74 @@
+//--STRIP
+#ifndef STRING_BUILDER_H
+#define STRING_BUILDER_H
+//--STRIP
+
+/*************************************************************************/
+/*  string_builder.h                                                     */
+/*  From https://github.com/Relintai/pandemonium_engine (MIT)            */
+/*************************************************************************/
+
+//--STRIP
+#include "core/ustring.h"
+
+#include "core/vector.h"
+//--STRIP
+
+class StringBuilder {
+	uint32_t string_length;
+
+	Vector<String> strings;
+	Vector<const char *> c_strings;
+
+	// -1 means it's a Pandemonium String
+	// a natural number means C string.
+	Vector<int32_t> appended_strings;
+
+public:
+	StringBuilder &append(const String &p_string);
+	StringBuilder &append(const char *p_cstring);
+
+	void clear();
+
+	_FORCE_INLINE_ uint32_t length() {
+		return string_length;
+	}
+
+	_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() {
+		string_length = 0;
+	}
+};
+
+//--STRIP
+#endif // STRING_BUILDER_H
+//--STRIP

tools/doc/sfw_core_template.html

@@ -412,6 +412,24 @@ Main
 
 </details>
 
+<a name="CLASS_StringBuffer"></a>
+<details><summary>StringName</summary>
+
+   A class that makes it easy to copy Strings into a buffer.
+
+   |||CLASS_StringBuffer|||
+
+</details>
+
+<a name="CLASS_StringBuilder"></a>
+<details><summary>StringName</summary>
+
+   A class that makes it easy and fast to concatenate lots of Strings.
+
+   |||CLASS_StringBuilder|||
+
+</details>
+
 Containers
 ------------------------------------------------------------------
 

tools/doc/sfw_full_template.html

@@ -437,6 +437,24 @@ Main
 
 </details>
 
+<a name="CLASS_StringBuffer"></a>
+<details><summary>StringName</summary>
+
+   A class that makes it easy to copy Strings into a buffer.
+
+   |||CLASS_StringBuffer|||
+
+</details>
+
+<a name="CLASS_StringBuilder"></a>
+<details><summary>StringName</summary>
+
+   A class that makes it easy and fast to concatenate lots of Strings.
+
+   |||CLASS_StringBuilder|||
+
+</details>
+
 Containers
 ------------------------------------------------------------------
 

tools/doc/sfw_object_template.html

@@ -412,6 +412,24 @@ Main
 
 </details>
 
+<a name="CLASS_StringBuffer"></a>
+<details><summary>StringName</summary>
+
+   A class that makes it easy to copy Strings into a buffer.
+
+   |||CLASS_StringBuffer|||
+
+</details>
+
+<a name="CLASS_StringBuilder"></a>
+<details><summary>StringName</summary>
+
+   A class that makes it easy and fast to concatenate lots of Strings.
+
+   |||CLASS_StringBuilder|||
+
+</details>
+
 Containers
 ------------------------------------------------------------------
 

tools/doc/sfw_render_core_template.html

@@ -437,6 +437,24 @@ Main
 
 </details>
 
+<a name="CLASS_StringBuffer"></a>
+<details><summary>StringName</summary>
+
+   A class that makes it easy to copy Strings into a buffer.
+
+   |||CLASS_StringBuffer|||
+
+</details>
+
+<a name="CLASS_StringBuilder"></a>
+<details><summary>StringName</summary>
+
+   A class that makes it easy and fast to concatenate lots of Strings.
+
+   |||CLASS_StringBuilder|||
+
+</details>
+
 Containers
 ------------------------------------------------------------------
 

tools/doc/sfw_render_immediate_template.html

@@ -437,6 +437,24 @@ Main
 
 </details>
 
+<a name="CLASS_StringBuffer"></a>
+<details><summary>StringName</summary>
+
+   A class that makes it easy to copy Strings into a buffer.
+
+   |||CLASS_StringBuffer|||
+
+</details>
+
+<a name="CLASS_StringBuilder"></a>
+<details><summary>StringName</summary>
+
+   A class that makes it easy and fast to concatenate lots of Strings.
+
+   |||CLASS_StringBuilder|||
+
+</details>
+
 Containers
 ------------------------------------------------------------------
 

tools/doc/sfw_render_objects_template.html

@@ -437,6 +437,24 @@ Main
 
 </details>
 
+<a name="CLASS_StringBuffer"></a>
+<details><summary>StringName</summary>
+
+   A class that makes it easy to copy Strings into a buffer.
+
+   |||CLASS_StringBuffer|||
+
+</details>
+
+<a name="CLASS_StringBuilder"></a>
+<details><summary>StringName</summary>
+
+   A class that makes it easy and fast to concatenate lots of Strings.
+
+   |||CLASS_StringBuilder|||
+
+</details>
+
 Containers
 ------------------------------------------------------------------
 

tools/doc/sfwl_core_template.html

@@ -314,6 +314,24 @@ Main
 
 </details>
 
+<a name="CLASS_StringBuffer"></a>
+<details><summary>StringName</summary>
+
+   A class that makes it easy to copy Strings into a buffer.
+
+   |||CLASS_StringBuffer|||
+
+</details>
+
+<a name="CLASS_StringBuilder"></a>
+<details><summary>StringName</summary>
+
+   A class that makes it easy and fast to concatenate lots of Strings.
+
+   |||CLASS_StringBuilder|||
+
+</details>
+
 Containers
 ------------------------------------------------------------------
 

tools/doc/sfwl_full_template.html

@@ -314,6 +314,24 @@ Main
 
 </details>
 
+<a name="CLASS_StringBuffer"></a>
+<details><summary>StringName</summary>
+
+   A class that makes it easy to copy Strings into a buffer.
+
+   |||CLASS_StringBuffer|||
+
+</details>
+
+<a name="CLASS_StringBuilder"></a>
+<details><summary>StringName</summary>
+
+   A class that makes it easy and fast to concatenate lots of Strings.
+
+   |||CLASS_StringBuilder|||
+
+</details>
+
 Containers
 ------------------------------------------------------------------
 

tools/merger/sfw_core.cpp.inl

@@ -192,6 +192,12 @@
 //--STRIP
 {{FILE:sfw/core/vector4.cpp}}
 
+//--STRIP
+//#include "string_builder.h"
+//#include <string.h>
+//--STRIP
+{{FILE:sfw/core/string_builder.cpp}}
+
 //--STRIP
 //#include "file_access.h"
 //--STRIP

tools/merger/sfw_core.h.inl

@@ -413,6 +413,17 @@
 //--STRIP
 {{FILE:sfw/core/hash_set.h}}
 
+//--STRIP
+//#include "core/ustring.h"
+//--STRIP
+{{FILE:sfw/core/string_buffer.h}}
+
+//--STRIP
+//#include "core/ustring.h"
+//#include "core/vector.h"
+//--STRIP
+{{FILE:sfw/core/string_builder.h}}
+
 //--STRIP
 //#include "core/error_list.h"
 //#include "core/ustring.h"

tools/merger/sfw_full.cpp.inl

@@ -398,6 +398,12 @@
 //--STRIP
 {{FILE:sfw/core/vector4.cpp}}
 
+//--STRIP
+//#include "string_builder.h"
+//#include <string.h>
+//--STRIP
+{{FILE:sfw/core/string_builder.cpp}}
+
 //--STRIP
 //#include "file_access.h"
 //--STRIP

tools/merger/sfw_full.h.inl

@@ -414,6 +414,17 @@
 //--STRIP
 {{FILE:sfw/core/hash_set.h}}
 
+//--STRIP
+//#include "core/ustring.h"
+//--STRIP
+{{FILE:sfw/core/string_buffer.h}}
+
+//--STRIP
+//#include "core/ustring.h"
+//#include "core/vector.h"
+//--STRIP
+{{FILE:sfw/core/string_builder.h}}
+
 //--STRIP
 //#include "core/error_list.h"
 //#include "core/ustring.h"

tools/merger/sfw_object.cpp.inl

@@ -200,6 +200,12 @@
 //--STRIP
 {{FILE:sfw/core/vector4.cpp}}
 
+//--STRIP
+//#include "string_builder.h"
+//#include <string.h>
+//--STRIP
+{{FILE:sfw/core/string_builder.cpp}}
+
 //--STRIP
 //#include "file_access.h"
 //--STRIP

tools/merger/sfw_object.h.inl

@@ -413,6 +413,17 @@
 //--STRIP
 {{FILE:sfw/core/hash_set.h}}
 
+//--STRIP
+//#include "core/ustring.h"
+//--STRIP
+{{FILE:sfw/core/string_buffer.h}}
+
+//--STRIP
+//#include "core/ustring.h"
+//#include "core/vector.h"
+//--STRIP
+{{FILE:sfw/core/string_builder.h}}
+
 //--STRIP
 //#include "core/error_list.h"
 //#include "core/ustring.h"

tools/merger/sfw_render_core.cpp.inl

@@ -398,6 +398,12 @@
 //--STRIP
 {{FILE:sfw/core/vector4.cpp}}
 
+//--STRIP
+//#include "string_builder.h"
+//#include <string.h>
+//--STRIP
+{{FILE:sfw/core/string_builder.cpp}}
+
 //--STRIP
 //#include "file_access.h"
 //--STRIP

tools/merger/sfw_render_core.h.inl

@@ -414,6 +414,17 @@
 //--STRIP
 {{FILE:sfw/core/hash_set.h}}
 
+//--STRIP
+//#include "core/ustring.h"
+//--STRIP
+{{FILE:sfw/core/string_buffer.h}}
+
+//--STRIP
+//#include "core/ustring.h"
+//#include "core/vector.h"
+//--STRIP
+{{FILE:sfw/core/string_builder.h}}
+
 //--STRIP
 //#include "core/error_list.h"
 //#include "core/ustring.h"

tools/merger/sfw_render_immediate.cpp.inl

@@ -398,6 +398,12 @@
 //--STRIP
 {{FILE:sfw/core/vector4.cpp}}
 
+//--STRIP
+//#include "string_builder.h"
+//#include <string.h>
+//--STRIP
+{{FILE:sfw/core/string_builder.cpp}}
+
 //--STRIP
 //#include "file_access.h"
 //--STRIP

tools/merger/sfw_render_immediate.h.inl

@@ -414,6 +414,17 @@
 //--STRIP
 {{FILE:sfw/core/hash_set.h}}
 
+//--STRIP
+//#include "core/ustring.h"
+//--STRIP
+{{FILE:sfw/core/string_buffer.h}}
+
+//--STRIP
+//#include "core/ustring.h"
+//#include "core/vector.h"
+//--STRIP
+{{FILE:sfw/core/string_builder.h}}
+
 //--STRIP
 //#include "core/error_list.h"
 //#include "core/ustring.h"

tools/merger/sfw_render_objects.cpp.inl

@@ -398,6 +398,12 @@
 //--STRIP
 {{FILE:sfw/core/vector4.cpp}}
 
+//--STRIP
+//#include "string_builder.h"
+//#include <string.h>
+//--STRIP
+{{FILE:sfw/core/string_builder.cpp}}
+
 //--STRIP
 //#include "file_access.h"
 //--STRIP

tools/merger/sfw_render_objects.h.inl

@@ -414,6 +414,17 @@
 //--STRIP
 {{FILE:sfw/core/hash_set.h}}
 
+//--STRIP
+//#include "core/ustring.h"
+//--STRIP
+{{FILE:sfw/core/string_buffer.h}}
+
+//--STRIP
+//#include "core/ustring.h"
+//#include "core/vector.h"
+//--STRIP
+{{FILE:sfw/core/string_builder.h}}
+
 //--STRIP
 //#include "core/error_list.h"
 //#include "core/ustring.h"

tools/merger/sfwl/sfwl_core.cpp.inl

@@ -119,6 +119,12 @@
 //--STRIP
 {{FILE:sfwl/core/pcg.cpp}}
 
+//--STRIP
+//#include "string_builder.h"
+//#include <string.h>
+//--STRIP
+{{FILE:sfw/core/string_builder.cpp}}
+
 //--STRIP
 //#include "file_access.h"
 //--STRIP

tools/merger/sfwl/sfwl_core.h.inl

@@ -326,6 +326,17 @@
 //--STRIP
 {{FILE:sfwl/core/hash_set.h}}
 
+//--STRIP
+//#include "core/ustring.h"
+//--STRIP
+{{FILE:sfw/core/string_buffer.h}}
+
+//--STRIP
+//#include "core/ustring.h"
+//#include "core/vector.h"
+//--STRIP
+{{FILE:sfw/core/string_builder.h}}
+
 //--STRIP
 //#include "core/error_list.h"
 //#include "core/ustring.h"

tools/merger/sfwl/sfwl_full.cpp.inl

@@ -119,6 +119,12 @@
 //--STRIP
 {{FILE:sfwl/core/pcg.cpp}}
 
+//--STRIP
+//#include "string_builder.h"
+//#include <string.h>
+//--STRIP
+{{FILE:sfw/core/string_builder.cpp}}
+
 //--STRIP
 //#include "file_access.h"
 //--STRIP

tools/merger/sfwl/sfwl_full.h.inl

@@ -326,6 +326,17 @@
 //--STRIP
 {{FILE:sfwl/core/hash_set.h}}
 
+//--STRIP
+//#include "core/ustring.h"
+//--STRIP
+{{FILE:sfw/core/string_buffer.h}}
+
+//--STRIP
+//#include "core/ustring.h"
+//#include "core/vector.h"
+//--STRIP
+{{FILE:sfw/core/string_builder.h}}
+
 //--STRIP
 //#include "core/error_list.h"
 //#include "core/ustring.h"