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PSI

A minimal, sensible, scripting language for configuring, extending and controlling your application
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Table of Contents

1. About The Project
   • Built With
2. Installation
3. Usage
4. License
5. Contact

About The Project

PSI is a scripting language with the following aims:

• Be fast enough to be embedded with little slowdown
• Simple enough to use, but powerful enough to be practical
• Potentially be used as a general purpose scripting language
• Can be learnt in under 1 hour with prior experience.

Built With

• Rust (Fast language to implement PSI in)
• Lliw (Provides colours and styles on the terminal)
• Thiserror (Allows for easy custom error creation)
• Unicode-rs (For use to ensure unicode is supported)
• Crafting Interpreters (Where I learnt to build it)

Installation

Source (Directly from Cargo)

1. Ensure you have an up-to-date Rust compiler toolchain (https://rust-lang.org)

2. Build from source (use a nightly compiler for potential performance improvements)

   cargo install psi-lang

Source (Manually)

1. Ensure you have an up-to-date Rust compiler toolchain (https://rust-lang.org)

2. Clone the repo and enter the directory

   git clone https://github.com/curlpipe/psi.git
   cd psi/compiler

3. Build from source (use a nightly compiler for potential performance improvements)

   cargo build --release

4. Add the executable

   mv target/release/psi_compiler /usr/bin/psi

Usage

You can find a cheatsheet for the language over here

You can also use the --learn or -l flag for an interactive learning environment to get yourself up to scratch on the langauge very quickly.

Here is the usage for the command line application itself:

• psi -h - Show help message
• psi -r - Access a REPL for trying out the language (a great environment to get to know it)
• psi example.psi - Run code from a file
• psi example.psi -v - Run code from a file (and show the internal workings of PSI)
• psi -rv or psi -r -v - Combine the repl and verbose argument to interactively show the internal workings
• psi -l - Access an interactive learning environment to learn the language quickly

License

Distributed under the GPLv2 License. See LICENSE for more information.

Contact

Project Link: https://github.com/curlpipe/psi