inspirateur / wordcloud-rs

Rust library to generate word cloud images from text and images !

wordcloud-rs

A Rust library to generate word-clouds from text and images!

Example

Code

use std::collections::HashMap;
use std::fs;
use lazy_static::lazy_static;
use regex::Regex;
use wordcloud_rs::*;

lazy_static! {
    static ref RE_TOKEN: Regex = Regex::new(r"\w+").unwrap();
}

fn tokenize(text: String) -> Vec<(Token, f32)> {
    let mut counts: HashMap<String, usize> = HashMap::new();
    for token in RE_TOKEN.find_iter(&text) {
        *counts.entry(token.as_str().to_string()).or_default() += 1;
    }
    counts.into_iter().map(|(k, v)| (Token::Text(k), v as f32)).collect()
}

fn main() {
    // Prepare the tokens
    let text = fs::read_to_string("assets/sample_text.txt").unwrap();
    let mut tokens = tokenize(text);
    tokens.push((Token::from("assets/alan_turing.jpg"), 15.));
    tokens.push((Token::from("assets/turing_statue_bletchley.jpg"), 20.));
    tokens.push((Token::Text("💻".to_string()), 20.));
    // Generate the word-cloud
    let wc = WordCloud::new().generate(tokens);
    // Save it
    wc.save("sample_cloud.png").unwrap();
}

Output

wordcloud-rs's Issues

adding emojis broke wasm build

with f3adda1 and adding twemoji-rs unconditionally as a dependency wordcloud-rs does not longer run in wasm environments anymore. unfortunately it will only break at runtime with:

panicked at 'called `Result::unwrap()` on an `Err` value: Error { kind: Unsupported, message: "operation not supported on this platform" }', /home/runner/.cargo/registry/src/index.crates.io-6f17d22bba15001f/twemoji-rs-0.1.2/src/lib.rs:10:37

could you make emoji support conditional so it could be disabled via features?

SVG output

Thanks for this crate!

I am looking to use this crate in my rust full stack web application live-ask is it possible to have it generate SVG instead of PNG?