stet-engine

Execution engine for the stet PostScript interpreter.

This is a low-level crate. Most users should use the stet facade crate instead.

Contents

• eval — The core eval loop that drives the interpreter
  • parse_and_exec(ctx, source) — Parse and execute PostScript from a byte slice
  • parse_and_exec_file(ctx, source, path) — Same, with canonical file path for relative resolution
  • exec_sync(ctx, proc_obj) — Synchronous PS procedure execution (used by operators like if, for, etc.)

The eval loop processes the execution stack one object at a time: executable names are looked up in the dictionary stack, operators are dispatched, and procedures ({...}) are stepped through element by element.

Usage

use stet_engine::eval::{parse_and_exec, exec_sync};

// After Context is initialized with operators and init scripts:
parse_and_exec(&mut ctx, b"1 2 add =").unwrap();

License

Apache-2.0 OR MIT