rust maybe base?
Even writing a lexer in rust seems weird and too hard. The typical lexer scheme does not seem to exist in any crate used by some qualified amount of people, instead we have `nom`, which is a "parser combinator", meaning we write a lot of functions instead of grammar that a parser/scanner will be generated from. This just confuses me a lot to be honest, I'd just want lex and yacc in rust, coming from a university course with ply and antlr4.
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|
||||||
|
homepage = "https://git.cscherr.de/PlexSheep/oops"
|
||||||
|
repository = "https://git.cscherr.de/PlexSheep/oops"
|
||||||
|
keywords = ["compiler"]
|
||||||
|
categories = ["command-line-utilities", "development-tools"]
|
||||||
|
publish = false
|
||||||
|
|
@ -0,0 +1,23 @@
|
||||||
|
[package]
|
||||||
|
name = "oopsc"
|
||||||
|
version = "0.1.0"
|
||||||
|
publish.workspace = true
|
||||||
|
edition.workspace = true
|
||||||
|
authors.workspace = true
|
||||||
|
license.workspace = true
|
||||||
|
description.workspace = true
|
||||||
|
readme.workspace = true
|
||||||
|
homepage.workspace = true
|
||||||
|
repository.workspace = true
|
||||||
|
keywords.workspace = true
|
||||||
|
categories.workspace = true
|
||||||
|
|
||||||
|
[features]
|
||||||
|
default = []
|
||||||
|
|
||||||
|
[dependencies]
|
||||||
|
clap = "4.4.11"
|
||||||
|
clap-num = "1.0.2"
|
||||||
|
clap-verbosity-flag = "2.1.1"
|
||||||
|
nom = "7.1.3"
|
||||||
|
racc = "0.0.4"
|
||||||
|
|
@ -0,0 +1,126 @@
|
||||||
|
//! # cli module
|
||||||
|
//!
|
||||||
|
//! This module defines the CLI interface of the oopsc. It uses [`clap`].
|
||||||
|
|
||||||
|
//// ATTRIBUTES ////////////////////////////////////////////////////////////////////////////////////
|
||||||
|
// we want docs
|
||||||
|
#![warn(missing_docs)]
|
||||||
|
#![warn(rustdoc::missing_crate_level_docs)]
|
||||||
|
////////////////////////////////////////////////////////////////////////////////////////////////////
|
||||||
|
// we want Debug everywhere.
|
||||||
|
#![warn(missing_debug_implementations)]
|
||||||
|
////////////////////////////////////////////////////////////////////////////////////////////////////
|
||||||
|
// enable clippy's extra lints, the pedantic version
|
||||||
|
#![warn(clippy::pedantic)]
|
||||||
|
|
||||||
|
//// IMPORTS ///////////////////////////////////////////////////////////////////////////////////////
|
||||||
|
use clap::{Parser, Subcommand};
|
||||||
|
|
||||||
|
use clap_num::number_range;
|
||||||
|
|
||||||
|
use clap_verbosity_flag::{Verbosity, InfoLevel};
|
||||||
|
|
||||||
|
//// CONSTANTS /////////////////////////////////////////////////////////////////////////////////////
|
||||||
|
/// short about section displayed in help
|
||||||
|
const ABOUT_ROOT: &'static str = r##"
|
||||||
|
OOPS compiler
|
||||||
|
|
||||||
|
A compiler for the oops programming language
|
||||||
|
"##;
|
||||||
|
/// longer about section displayed in help, is combined with [the short help](ABOUT_ROOT)
|
||||||
|
static LONG_ABOUT_ROOT: &'static str = r##"
|
||||||
|
|
||||||
|
Object oriented pseudo syntax (OOPS) is a obscure programming language. This program is the
|
||||||
|
compiler for that language.
|
||||||
|
"##;
|
||||||
|
|
||||||
|
//// STATICS ///////////////////////////////////////////////////////////////////////////////////////
|
||||||
|
/// ## Main struct for parsing CLI arguments
|
||||||
|
///
|
||||||
|
/// This struct describes the complete commandline options/arguments that [pt](crate) can take. It
|
||||||
|
/// makes use of composition to build a complex system of commands, subcommands, flags and options.
|
||||||
|
#[derive(Debug, Clone, Parser)]
|
||||||
|
#[command(
|
||||||
|
author,
|
||||||
|
version,
|
||||||
|
about = ABOUT_ROOT,
|
||||||
|
long_about = format!("{}{}", ABOUT_ROOT ,LONG_ABOUT_ROOT),
|
||||||
|
help_template =
|
||||||
|
r#"oopsc: {version}{about-section}Author:
|
||||||
|
{author-with-newline}
|
||||||
|
{usage-heading} {usage}{all-args}{tab}"#
|
||||||
|
)]
|
||||||
|
pub struct Cli {
|
||||||
|
// enable more verbose output
|
||||||
|
#[clap(short, long, global = true)]
|
||||||
|
pub verbose: bool,
|
||||||
|
|
||||||
|
/// read from stdin instead of files
|
||||||
|
#[arg(short, long, global = true)]
|
||||||
|
pub stdin: bool,
|
||||||
|
|
||||||
|
/// choose a subcommand
|
||||||
|
#[command(subcommand)]
|
||||||
|
pub command: Commands,
|
||||||
|
|
||||||
|
/// a list of file (paths)
|
||||||
|
#[clap(short, long, global = true)]
|
||||||
|
pub files: Vec<std::path::PathBuf>
|
||||||
|
}
|
||||||
|
|
||||||
|
//// ENUMS /////////////////////////////////////////////////////////////////////////////////////////
|
||||||
|
/// ## defines the top level commands
|
||||||
|
#[derive(Debug, Clone, Subcommand)]
|
||||||
|
#[non_exhaustive]
|
||||||
|
pub enum Commands {
|
||||||
|
/// Scan a file for tokens
|
||||||
|
Scan,
|
||||||
|
}
|
||||||
|
|
||||||
|
////////////////////////////////////////////////////////////////////////////////////////////////////
|
||||||
|
/// ## defines the networking commands
|
||||||
|
#[derive(Debug, Clone, Subcommand)]
|
||||||
|
#[non_exhaustive]
|
||||||
|
pub enum NetCommands {
|
||||||
|
/// monitor your network
|
||||||
|
Monitor {
|
||||||
|
/// repeat every N seconds, 0 means no repeat
|
||||||
|
#[clap(short, long, default_value_t = 0, name = "N")]
|
||||||
|
repeat: u64,
|
||||||
|
|
||||||
|
/// At what percentage should the try be considered successful
|
||||||
|
#[clap(short, long, default_value_t = 100, value_parser=max100)]
|
||||||
|
success_ratio: u8,
|
||||||
|
|
||||||
|
/// extra URLs to check with
|
||||||
|
extra_urls: Vec<String>,
|
||||||
|
|
||||||
|
/// Don't check for default URLs
|
||||||
|
#[clap(short, long)]
|
||||||
|
no_default: bool,
|
||||||
|
|
||||||
|
/// set a timeout (in ms)
|
||||||
|
#[clap(short, long, default_value_t = 100)]
|
||||||
|
timeout: u64
|
||||||
|
|
||||||
|
},
|
||||||
|
/// discover hosts in your network
|
||||||
|
Discover {
|
||||||
|
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
////////////////////////////////////////////////////////////////////////////////////////////////////
|
||||||
|
|
||||||
|
//// STRUCTS ///////////////////////////////////////////////////////////////////////////////////////
|
||||||
|
|
||||||
|
//// IMPLEMENTATION ////////////////////////////////////////////////////////////////////////////////
|
||||||
|
|
||||||
|
//// PUBLIC FUNCTIONS //////////////////////////////////////////////////////////////////////////////
|
||||||
|
|
||||||
|
//// PRIVATE FUNCTIONS /////////////////////////////////////////////////////////////////////////////
|
||||||
|
/// custom value parser, only allow 0 to 100
|
||||||
|
fn max100(s: &str) -> Result<u8, String> {
|
||||||
|
number_range(s, 0, 100)
|
||||||
|
}
|
||||||
|
|
||||||
|
|
@ -0,0 +1,40 @@
|
||||||
|
use std::io::BufReader;
|
||||||
|
|
||||||
|
use clap::Parser;
|
||||||
|
|
||||||
|
mod cli;
|
||||||
|
use clap_verbosity_flag::{LogLevel, InfoLevel};
|
||||||
|
use cli::*;
|
||||||
|
|
||||||
|
mod scanner;
|
||||||
|
use scanner::scan;
|
||||||
|
|
||||||
|
fn main() -> std::io::Result<()> {
|
||||||
|
let cli = Cli::parse();
|
||||||
|
match cli.command {
|
||||||
|
Commands::Scan => {
|
||||||
|
let mut buf: String = String::new();
|
||||||
|
|
||||||
|
if cli.stdin {
|
||||||
|
for line in std::io::stdin().lines() {
|
||||||
|
match line {
|
||||||
|
Ok(line) => buf = format!("{buf}\n{line}"),
|
||||||
|
Err(err) => eprintln!("IO error while reading stdin: {err}")
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
else if cli.files.len() >= 1 {
|
||||||
|
for file in cli.files {
|
||||||
|
buf += &std::fs::read_to_string(file)?;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if cli.verbose {
|
||||||
|
println!("{text:=^80}\n{buf}\n{text:=^80}", text = "raw combined source");
|
||||||
|
}
|
||||||
|
let result = scan(&buf);
|
||||||
|
for i in result { println!("\"{i}\"\n")}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
Ok(())
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,14 @@
|
||||||
|
use nom::{
|
||||||
|
IResult,
|
||||||
|
bytes::complete::{tag},
|
||||||
|
};
|
||||||
|
|
||||||
|
fn comment(input: &str) -> IResult<&str, &str> {
|
||||||
|
tag("/*")(input)
|
||||||
|
}
|
||||||
|
|
||||||
|
pub fn scan(input: &str) -> Vec<&str> {
|
||||||
|
let foo = comment(input).unwrap().1;
|
||||||
|
println!("{foo}");
|
||||||
|
vec!["s"]
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue