Add command line tool functionality

zehanort / bff

Befunge Forever - A Befunge 93 (and soon 98) interpreter in Rust

MIT License

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Open zehanort opened 2 years ago

zehanort commented 2 years ago

Use clap to make bff a proper CLI utility.

extra note: add a -u mode to write a Unefunge 98 string to interpret right on the command line, like this:
```
# multiply 2 numbers
bff -u &&*.@
```

zehanort commented 2 years ago

Done, need to restrict instruction set to Unefunge to close the issue (i.e., to reflect on Befunge-only commands).