magistau

use clap::Parser;
use regex::Regex;
use std::{
    fmt::{self, Debug, Display},
    str::FromStr,
};
use thiserror::Error;

#[derive(Debug, Default, Clone, Copy, PartialEq, Eq)]
enum Browser {

magistau

#[macro_export]
macro_rules! opt_metavar {
	(; $default:tt) => {
		$default
	};
	($opt:tt; $default:tt) => {
		$opt
	};
}

magistau

#let astar(edges, start: "S", heur: auto, target: none) = {
  if heur == auto {
    heur = _ => 0;
  } else {
    assert.ne(target, none, message: "A* requires a target node to be set");
  }
  if type(heur) == dictionary {
    heur = x => heur.at(x);
  }
  if type(edges) == dictionary {