26 lines
558 B
Rust
26 lines
558 B
Rust
use purrchance::*;
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use purrchance::parser::*;
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use std::env;
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use std::fs::read_to_string;
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use std::process::exit;
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fn main() {
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let args: Vec<String> = env::args().collect();
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if args.len() < 2 {
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eprintln!("too few arguments!");
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exit(1);
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}
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let raw_grammar = read_to_string(&args[1]).unwrap();
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let grammar = load_grammar(&raw_grammar);
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if args.len() < 3 {
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eprintln!("{:?}", grammar);
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exit(0);
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}
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let sym = Symbol::NonTerminal(args[2].clone());
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println!("{}", sym.eval(&grammar).unwrap());
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}
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