Simple C-like scripting engine written in Free Pascal. While it is primarily designed for satania-buddy, it can also be utilized as a general-purpose, embeddable scripting engine.

It has been tested and works on the following platforms: DOS (go32v2), Windows (x86 & x64), Linux (x64), although theoretically it should work on every platforms except 8/16-bit systems and wasm, due to the lack of goto

By default import feature (allows to import external functions from DLLs directly) only works on x64. Enable SE_LIBFFI, which in turn uses libffi instead, will allow you to use import in other archs.

Features

• https://github.com/Kagamma/satania-buddy/wiki/Scripting-Reference

Building

• fpc -O4 evil.pas

Running

• evil examples/hello.evil

How to embedded into applications

• See Test.pas and evil.pas source code

About compiler

• The compiler itself is a one-pass compiler. It follows Niklaus Wirth’s design, completely skips AST generation and generates binary directly.
• Due to the lack of AST, only constant folding and peephole optimizations are implemented.
• The performance of its virtual machine should be better than CPython.