yaslapi is a Rust library that provides safe idiomatic wrapper for the Yet Another Scripting Language (YASL) API.
First, you must have CMake and a C compiler installed so that YASL can be compiled locally.
To install yaslapi, add the following to your Cargo.toml file:
[dependencies]
yaslapi = "0.2.0"Then run cargo build to build your project.
Here’s an example of how to use yaslapi in your Rust code:
use yaslapi::{State, StateSuccess, Type};
// C-style function to print a constant string.
unsafe extern "C" fn rust_print(_state: *mut yaslapi_sys::YASL_State) -> i32 {
println!("This is a test");
// Return the number of values pushed to the stack.
0
}
fn main() {
// Initialize test script.
let mut state = State::from_source(r#"echo "The variable 'answer' has value #{answer}", rust_print();"#);
// Init new variable `answer` with the top of the stack (in this case, the `42`).
state.push_int(42);
state.init_global_slice("answer");
// Add Rust implemented function `rust_print` to globals.
state.push_cfunction(rust_print, 0);
// Check that the top of the stack is our C function.
assert_eq!(state.peek_type(), Type::CFn);
// Init the function as a global.
state.init_global_slice("rust_print");
// Execute `test.yasl`, now that we're done setting everything up.
assert!(state.execute().is_ok());
}yaslapi is licensed under the MIT License.