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QR-Code-generator
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Added Rust crate summary documentation comment.

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Project Nayuki 2018-10-13 01:41:45 +00:00
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rust/src/lib.rs
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@ -22,6 +22,65 @@
*/
//! Generates QR Codes from text strings and byte arrays.
//!
//! This project aims to be the best, clearest QR Code generator library.
//! The primary goals are flexible options and absolute correctness.
//! Secondary goals are compact implementation size and good documentation comments.
//!
//! Home page with live JavaScript demo, extensive descriptions, and competitor comparisons:
//! [https://www.nayuki.io/page/qr-code-generator-library](https://www.nayuki.io/page/qr-code-generator-library)
//!
//! # Features
//!
//! Core features:
//!
//! - Available in 7 programming languages, all with nearly equal functionality: Java, JavaScript, TypeScript, Python, C++, C, Rust
//! - Significantly shorter code but more documentation comments compared to competing libraries
//! - Supports encoding all 40 versions (sizes) and all 4 error correction levels, as per the QR Code Model 2 standard
//! - Output formats: Raw modules/pixels of the QR symbol, SVG XML string
//! - Encodes numeric and special-alphanumeric text in less space than general text
//! - Open source code under the permissive MIT License
//!
//! Manual parameters:
//!
//! - User can specify minimum and maximum version numbers allowed, then library will automatically choose smallest version in the range that fits the data
//! - User can specify mask pattern manually, otherwise library will automatically evaluate all 8 masks and select the optimal one
//! - User can specify absolute error correction level, or allow the library to boost it if it doesn't increase the version number
//! - User can create a list of data segments manually and add ECI segments
//!
//! # Examples
//!
//! ```
//! extern crate qrcodegen;
//! use qrcodegen::QrCode;
//! use qrcodegen::QrCodeEcc;
//! use qrcodegen::QrSegment;
//! ```
//!
//! Simple operation:
//!
//! ```
//! let qr = QrCode::encode_text("Hello, world!",
//! QrCodeEcc::Medium).unwrap();
//! let svg = qr.to_svg_string(4);
//! ```
//!
//! Manual operation:
//!
//! ```
//! let chrs: Vec<char> = "3141592653589793238462643383".chars().collect();
//! let segs = QrSegment::make_segments(&chrs);
//! let qr = QrCode::encode_segments_advanced(
//! &segs, QrCodeEcc::High, 5, 5, Some(2), false).unwrap();
//! for y in 0 .. qr.size() {
//! for x in 0 .. qr.size() {
//! (... paint qr.get_module(x, y) ...)
//! }
//! }
//! ```
/*---- QrCode functionality ----*/
/// A QR Code symbol, which is a type of two-dimension barcode.