/* * QR Code generator test worker (Rust) * * This program reads data and encoding parameters from standard input and writes * QR Code bitmaps to standard output. The I/O format is one integer per line. * Run with no command line arguments. The program is intended for automated * batch testing of end-to-end functionality of this QR Code generator library. * * Copyright (c) Project Nayuki. (MIT License) * https://www.nayuki.io/page/qr-code-generator-library * * Permission is hereby granted, free of charge, to any person obtaining a copy of * this software and associated documentation files (the "Software"), to deal in * the Software without restriction, including without limitation the rights to * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of * the Software, and to permit persons to whom the Software is furnished to do so, * subject to the following conditions: * - The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * - The Software is provided "as is", without warranty of any kind, express or * implied, including but not limited to the warranties of merchantability, * fitness for a particular purpose and noninfringement. In no event shall the * authors or copyright holders be liable for any claim, damages or other * liability, whether in an action of contract, tort or otherwise, arising from, * out of or in connection with the Software or the use or other dealings in the * Software. */ extern crate qrcodegen; use qrcodegen::QrCode; use qrcodegen::QrCodeEcc; use qrcodegen::QrSegment; fn main() { loop { // Read data length or exit let length: i16 = read_int(); if length == -1 { break; } // Read data bytes let mut data = Vec::::with_capacity(length as usize); for _ in 0 .. length { let b: i16 = read_int(); assert_eq!((b as u8) as i16, b, "Byte value out of range"); data.push(b as u8); } let isascii: bool = data.iter().all(|b| *b < 128); // Read encoding parameters let errcorlvl = read_int(); let minversion = read_int(); let maxversion = read_int(); let mask = read_int(); let boostecl = read_int(); assert!(0 <= errcorlvl && errcorlvl <= 3); assert!(1 <= minversion && minversion <= maxversion && maxversion <= 40); assert!(-1 <= mask && mask <= 7); assert!(boostecl >> 1 == 0); // Make segments for encoding let segs: Vec; if isascii { let chrs: Vec = std::str::from_utf8(&data).unwrap().chars().collect(); segs = QrSegment::make_segments(&chrs); } else { segs = vec![QrSegment::make_bytes(&data)]; } // Try to make QR Code symbol match QrCode::encode_segments_advanced(&segs, ECC_LEVELS[errcorlvl as usize], minversion as u8, maxversion as u8, mask as i8, boostecl != 0) { Some(qr) => { // Print grid of modules println!("{}", qr.version()); for y in 0 .. qr.size() { for x in 0 .. qr.size() { println!("{}", qr.get_module(x, y) as i8); } } }, None => println!("-1"), } use std::io::Write; std::io::stdout().flush().unwrap(); } } fn read_int() -> i16 { let mut line = String::new(); std::io::stdin().read_line(&mut line).unwrap(); let mut chrs: Vec = line.chars().collect(); assert_eq!(chrs.pop().unwrap(), '\n'); let line: String = chrs.iter().cloned().collect(); match line.parse::() { Ok(x) => x, Err(_) => panic!("Invalid number"), } } static ECC_LEVELS: [QrCodeEcc; 4] = [ QrCodeEcc::Low, QrCodeEcc::Medium, QrCodeEcc::Quartile, QrCodeEcc::High, ];