76 lines
2.2 KiB
Rust
76 lines
2.2 KiB
Rust
#[macro_use]
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extern crate lazy_static;
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#[macro_use]
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extern crate log;
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#[macro_use]
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extern crate serde_derive;
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extern crate hashbrown;
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extern crate serde_json;
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mod error;
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mod generate;
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mod logger;
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use clap::{App, Arg, SubCommand};
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use std::env;
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use std::process::exit;
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use std::usize;
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fn main() {
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if let Err(e) = run() {
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eprintln!("{}", e.0);
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exit(1);
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}
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}
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fn run() -> error::Result<()> {
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let matches = App::new("tree-sitter")
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.version("0.1")
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.author("Max Brunsfeld <maxbrunsfeld@gmail.com>")
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.about("Generates and tests parsers")
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.subcommand(
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SubCommand::with_name("generate")
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.about("Generate a parser")
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.arg(Arg::with_name("log").long("log"))
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.arg(
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Arg::with_name("state-ids-to-log")
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.long("log-state")
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.takes_value(true),
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)
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.arg(Arg::with_name("no-minimize").long("no-minimize")),
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)
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.subcommand(
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SubCommand::with_name("parse")
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.about("Parse a file")
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.arg(Arg::with_name("path").index(1)),
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)
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.subcommand(
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SubCommand::with_name("test")
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.about("Run a parser's tests")
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.arg(Arg::with_name("path").index(1).required(true))
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.arg(Arg::with_name("line").index(2).required(true))
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.arg(Arg::with_name("column").index(3).required(true)),
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)
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.get_matches();
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if let Some(matches) = matches.subcommand_matches("generate") {
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if matches.is_present("log") {
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logger::init();
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}
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let minimize = !matches.is_present("no-minimize");
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let state_ids_to_log = matches
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.values_of("state-ids-to-log")
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.map_or(Vec::new(), |ids| {
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ids.filter_map(|id| usize::from_str_radix(id, 10).ok())
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.collect()
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});
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let mut grammar_path = env::current_dir().expect("Failed to read CWD");
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grammar_path.push("grammar.js");
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let code =
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generate::generate_parser_for_grammar(&grammar_path, minimize, state_ids_to_log)?;
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println!("{}", code);
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}
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Ok(())
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}
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