wasm1

wasm1.rs

extern crate cfg_if;
extern crate wasm_bindgen;
extern crate regex;
#[macro_use]
extern crate serde_derive;

use wasm_bindgen::prelude::*;
use regex::Regex;

#[wasm_bindgen]
pub fn fuzzy(query: &str, content: &str) -> String {
	if query == "" {
		return content.to_string();
	}

	let rgx = Regex::new(query).unwrap();
	let res = rgx.replace_all(content, "<span class='match'>$0</span>");

	res.to_string()
}


#[derive(Deserialize, Serialize)]
pub struct Book {
	author: String,
	title: String
}

#[derive(Deserialize, Serialize)] 
pub struct Books {
	col: Vec<Book>,
}

#[wasm_bindgen]
pub fn filter_books(js_books: &JsValue, query: &str) -> JsValue {
	let books: Books = js_books.into_serde().unwrap();
	
	let col: Vec<Book> = books.col
	.into_iter()
	.filter(|book| Regex::new(query).unwrap().is_match(&book.author) || Regex::new(query).unwrap().is_match(&book.title))
	.map(|mut book| {
		book.author = fuzzy(query, &book.author);
		book.title = fuzzy(query, &book.title);

		book
	})
	.collect();

	JsValue::from_serde(&Books { col })
		.unwrap()
}