82 lines
2.1 KiB
Rust
82 lines
2.1 KiB
Rust
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/* Mycelium Scheme
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* Copyright (C) 2025 Ava Affine
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#![feature(iter_collect_into)]
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use mycelium::{lexer as l, parser as p};
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use std::rc::Rc;
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use std::path::PathBuf;
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use std::fs;
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use std::error::Error;
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use std::time::Instant;
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use clap::Parser;
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#[derive(Parser, Debug)]
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#[command(version, about, long_about = None)]
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struct Args {
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/// display time to parse scripts
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#[arg(short, long)]
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time: bool,
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/// output script AST once parsed
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#[arg(short, long)]
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debug: bool,
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scripts: Vec<PathBuf>,
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}
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fn main() -> Result<(), Box<dyn Error>> {
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let args = Args::parse();
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for script in args.scripts {
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println!("+ processing {:#?}", script);
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let message = fs::read_to_string(script)?;
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let start: Option<Instant>;
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if args.time {
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start = Some(Instant::now());
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} else {
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start = None;
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}
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let mut p = p::Parser::from(l::Lexer::from(Rc::from(message.as_str())));
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let mut i = p.next();
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while let Some(ref r) = i {
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if args.debug {
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println!(" > res: {}", r);
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}
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i = p.next();
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}
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if let Some(i) = start {
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println!(" > time: {:#?}", i.elapsed());
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}
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if p.has_error_state.is_some() {
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let e = p.has_error_state.unwrap();
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if e.0 != l::E_END_OF_DOCUMENT {
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println!(" > error!\n{}", e);
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}
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}
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}
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Ok(())
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}
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