french-numbers

This crate transforms a number into its French representation.

Using this crate

In your Cargo.toml, put:

[dependencies]
french-numbers = "1.1.4"

You can then use the french_number function from the french_numbers crate to format any integer into the beautiful French romance language:

use french_numbers::french_number;

assert_eq!(french_number(&71), "soixante-et-onze");
assert_eq!(french_number(&1001), "mille-un");
assert_eq!(french_number(&-200001), "moins deux-cent-mille-un");
assert_eq!(french_number(&-200000001), "moins deux-cents-millions-un");
assert_eq!(french_number(&-204000001), "moins deux-cent-quatre-millions-un");

You can also request the use of the feminine form, or prefer the previous way of writing numbers predating the 1990 orthographic reform:

use french_numbers::*;

assert_eq!(french_number_options(&37251061, &POST_REFORM_MASCULINE),
           "trente-sept-millions-deux-cent-cinquante-et-un-mille-soixante-et-un");
assert_eq!(french_number_options(&37251061, &POST_REFORM_FEMININE),
           "trente-sept-millions-deux-cent-cinquante-et-un-mille-soixante-et-une");
assert_eq!(french_number_options(&37251061, &PRE_REFORM_FEMININE),
           "trente-sept millions deux cent cinquante et un mille soixante et une");
assert_eq!(french_number_options(&37251061, &PRE_REFORM_MASCULINE),
           "trente-sept millions deux cent cinquante et un mille soixante et un")

An example program can dump particular number, with different options:

% cargo run --example french-number -- --help
Print number(s) in French

USAGE:
    french-number [FLAGS] <LOW> [HIGH]

FLAGS:
    -f, --feminine     use the feminine declination
    -h, --help         Prints help information
    -r, --no-reform    use the pre-1990 orthographic reform writing
    -p, --prefix       prefix output with the numerical representation
    -V, --version      Prints version information

ARGS:
    <LOW>     number (or low bound) to use
    <HIGH>    optional high bound