52 lines
1.7 KiB
Rust
52 lines
1.7 KiB
Rust
// Copyright (C) 2020 "Maxime “pep” Buquet <pep@bouah.net>"
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//
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// This program is free software: you can redistribute it and/or modify it
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// under the terms of the GNU Affero General Public License as published by the
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// Free Software Foundation, either version 3 of the License, or (at your
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// option) any later version.
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//
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// This program is distributed in the hope that it will be useful, but WITHOUT
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// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License
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// for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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use std::env::args;
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use std::convert::TryFrom;
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use std::process::exit;
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use pkstrings::PKString;
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fn main() {
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let args: Vec<String> = args().collect();
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if args.len() < 2 {
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eprintln!("usage: {} <ascii>|rev <hex>", args[0]);
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exit(1);
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}
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if args.len() == 2 {
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// Convert String to PKString and then to Vec<u8>
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let tmp: Vec<u8> = PKString::try_from(args[1].as_str()).unwrap().into();
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println!("{:02x?}", tmp);
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} else if args.len() == 3 && args[1] == String::from("rev") {
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// Consure chars 2 by 2 and convert to u8.
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let mut vec: Vec<u8> = vec![];
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args[2].chars().fold(vec![], |mut acc, chr| {
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acc.push(chr);
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if acc.len() == 2 {
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let ord = format!("{}{}", acc[0], acc[1]);
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vec.push(u8::from_str_radix(&ord, 16).unwrap());
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acc = vec![];
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}
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acc
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});
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println!("{}", PKString::try_from(vec.as_slice()).unwrap());
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}
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}
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