little is a small, fast, easily embeddable language implemented in C.
var speak = fn(animal) {
if animal is "cat" { return "meow" }
elseif animal is "dog" { return "woof" }
elseif animal is "mouse" { return "squeak" }
return "???"
}
var animals = [ "cat", "dog", "mouse", "monkey" ]
for animal in array.each(animals) {
io.print(string.format("%s says %s!", animal, speak(animal)))
}- Tiny implementation - core langauge is <2500 sloc in a single .h/.c pair
- Light embedding - compiles down to less than 20kb, 3 API calls to get started
- Reasonably fast for realtime applications
- Low memory footprint with simple mark and sweep garbage collector
- Supports null, numbers, booleans, strings, functions, closures, arrays, tables, and native procedures
- Optional, consise stdlib - an extra ~1000 sloc
- Supports 32- and 64-bit, and will likely compile anywhere!
- Feature-rich C api to integrate and interact with the VM
#include "little.h"
#include "little_std.h"
// this is called if the vm encounters an error, letting us react
void my_error_callback(lt_VM* vm, const char* msg)
{
printf("LT ERROR: %s\n", msg);
}
int main(char** argv, int argc)
{
lt_VM* vm = lt_open(malloc, free, my_error_callback); // open new VM
ltstd_open_all(vm); // register stdlib
const char* my_source_code = ... // read source from file/stream/string
uint16_t n_return = lt_dostring(vm, my_source_code, "my_module") // run code as "my_module"
if(n_return) printf("LT RETURNED: %s", ltstd_tostring(vm, lt_pop(vm))); // if our code returns, print the result
}- Recursion is broken, sorry
- just write better code
Feel free to open an issue or pull request if you feel you have something meaninfgul to add, but keep in mind the language is minimalist by design, so any merging will be very carefully picked
Please see LICENSE for details