text2num-rs

Parse and convert numbers written in natural language into their digit representation.

This crate provides a library for recognizing, parsing and transcribing into digits (base 10) numbers expressed in natural language. No IA involved: resources (and energy!) consumption as well as latency are very small; #[no-std] supported!

Supported languages

• Danish;
• Dutch;
• English;
• French;
• German;
• Italian;
• Portuguese (Europe & Brazil);
• Spanish;
• And more to come.

Examples

check some string is a valid number in a given language

use text2num::{Language, text2digits};

let es = Language::spanish();
let utterance = "ochenta y cinco";

match text2digits(utterance, &es) {
    Ok(repr) => println!("'{}' means {} in Spanish", utterance, repr),
    Err(_) => println!("'{}' is not a number in Spanish", utterance)
}

When run, the above code should print 'ochenta y cinco' means 85 in Spanish on the standard output.

find and replace numbers in a natural speech string

Most often, you just want to rewrite a string containing natural speech so that the numbers it contains (cardinals, ordinals, decimal numbers) appear in digit (base 10) form instead.