allow calling SPL from rust

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "spl"
-version = "0.1.6"
+version = "0.1.7"
 edition = "2021"
 description = "Stack Pogramming Language: A simple, concise scripting language."
 license = "MIT"

rust-test.spl

@@ -2,9 +2,14 @@ func main { |
 	1 rusty-test _str println
 	0
 }
+func sply-test { mega | 
+	1
+}
 func rusty-test @rust !{
 	println!("hii");
 	let v = #pop:Mega#;
-	#push(v + 1)#;
+	#call(sply-test)#
+	let v2 = #pop:Mega#;
+	#push(v + v2)#
 }
 

src/oxidizer/splrs.rs

@@ -22,6 +22,9 @@ fn parse_hash_expr(s: String, name: &str) -> String {
     if let Some(s) = readf1("push({})", &s) {
         return format!("stack.push(({s}).spl());");
     }
+    if let Some(s) = readf1("call({})", &s) {
+        return format!("stack.call(&stack.get_func({s:?}.to_owned())?)?;");
+    }
     panic!("invalid #-expr - this error will be handled in the future")
 }