stris(1)

src/stris.rs

@@ -0,0 +1,93 @@
+/*
+ * Copyright (c) 2023–2024 DTB <trinity@trinity.moe>
+ * Copyright (c) 2023 Marceline Cramer <mars@tebibyte.media>
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ *
+ * This program is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU Affero General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option) any
+ * later version.
+ * 
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see https://www.gnu.org/licenses/.
+ */
+
+use std::{
+	env::args,
+	process::ExitCode
+};
+
+extern crate getopt;
+use getopt::{ Opt, Parser };
+
+extern crate sysexits;
+use sysexits::EX_USAGE;
+
+struct Reqs {
+	ascii: bool, blank: bool, cntrl: bool, digit: bool, lower: bool,
+	upper: bool, inuse: bool, extra: String
+}
+
+fn usage(s: &str) -> ExitCode {
+	eprintln!("Usage: {} (-7bcdlu) (-i [inclusions]) [strings...]", s);
+	ExitCode::from(EX_USAGE as u8)
+}
+
+fn main() -> ExitCode {
+	let argv = args().collect::<Vec<String>>();
+	let mut opts = Parser::new(&argv, "7bcdi:lu");
+	let mut reqs = Reqs {
+		ascii: false, blank: false, cntrl: false, digit: false, lower: false,
+		upper: false, inuse: false, extra: String::new()
+	};
+
+	loop {
+		match opts.next() {
+			None => break,
+			Some(opt) => {
+				match opt {
+					Ok(Opt('7', None)) => reqs.ascii = true,
+					Ok(Opt('b', None)) => reqs.blank = true,
+					Ok(Opt('c', None)) => reqs.cntrl = true,
+					Ok(Opt('d', None)) => reqs.digit = true,
+					Ok(Opt('i', Some(arg))) => reqs.extra = arg,
+					Ok(Opt('l', None)) => reqs.lower = true,
+					Ok(Opt('u', None)) => reqs.upper = true,
+					_ => { return usage(&argv[0]); }
+				}
+				reqs.inuse = true;
+			}
+		}
+	}
+
+	if argv.len() == opts.index() {
+		return usage(&argv[0]);
+	}
+
+	drop(argv);
+
+	if reqs.inuse {
+		'args: for arg in args().skip(opts.index()) {
+			for c in arg.chars() {
+				if (reqs.ascii && c.is_ascii())
+						|| (reqs.blank && c.is_whitespace())
+						|| (reqs.cntrl && c.is_control())
+						|| (reqs.digit && c.is_numeric())
+						|| (reqs.lower && c.is_lowercase())
+						|| (reqs.upper && c.is_uppercase())
+						|| reqs.extra.contains(c) {
+					continue 'args;
+				} else {
+					return ExitCode::FAILURE;
+				}
+			}
+		}
+	}
+
+	ExitCode::SUCCESS
+}