A scripting language for fun and profit.
use io; // Standard IO
io.puts("Hello, World!");The Cx language is designed to be a very simple subset of C++ and C#. What makes Cx unique is the ability to easy extend the language using C++, and Cx. Basic data types can also be extended to add functionality. All data types can be extended by additional class declarations. This makes it easy to define objects in C++ to later extend those objects in Cx without having to recompile the library. For example, the below code will add the function is_digit to the basic Cx char type.
class char {
/*!is_digit - Check if character is decimal digit
Checks whether "this" is a decimal digit character.
Decimal digits are any of: 0 1 2 3 4 5 6 7 8 9
@param this : char to test if digit.
@return true if digit, false if not. */
bool is_digit() {
return ((this >= '0') && (this <= '9'));
}
}The added function can then be called as follows:
char c = '5';
if(c.is_digit)
// true
else
// falseThe Cx back-end is a very simple op-code, stack-based processor built from scratch which (very) loosely follows the JVM instruction syntax. CxVM instructions can be directly emitted from within Cx source.
int assembly_example(int i){
int a;
asm iconst 0x3E8; // Load 1000
asm istore a; // a = 1000
asm{
iconst 0b11111111 // Load 255
iload a // Load 1000 (a == 1000)
iadd // a + 255 = 1255
iload i // Load 100 (if i == 100)
iadd // 1255 + 100 = 1355
istore i // i = 1355
iload i // Load 1355
istore assembly_example // assembly_example = 1355
ret // return
}
}
// Returns 1355 to the OS
return assembly_example(100);Popular compilers which support C++11 are used to build the Cx interpreter.
- clang++
- g++4.7 or later
- VS 2012 express
Cx language features are restricted to the C++11 standard library and will compile on OSX, Linux, and Windows. Any features deemed platform specific will be implemented in dynamic libraries which can be loaded at run-time.
All documentation will be posted and updated at the link below. More information may be found in Cx/doc
This project is for educational purposes only and is still in early development. A working prototype is well underway and current work is focused on the base language.