Crate to_regex_range 

to-regex-range — a regex that matches an integer range

Generate a compact regular-expression source string matching every integer in a range: (1, 99) becomes [1-9]|[1-9][0-9]. A faithful Rust port of the to-regex-range npm package (a micromatch building block). Zero dependencies and #![no_std].

use to_regex_range::{to_regex_range, to_regex_range_with_options, Options};

assert_eq!(to_regex_range(1, 5), "[1-5]");
assert_eq!(to_regex_range(1, 99), "(?:[1-9]|[1-9][0-9])");
assert_eq!(to_regex_range(-10, -1), "(?:-[1-9]|-10)");

let opts = Options::default().shorthand(true);
assert_eq!(to_regex_range_with_options(1, 99, &opts), "(?:[1-9]|[1-9]\\d)");

The result is a regex source (no delimiters); wrap it in your regex engine of choice. Operates on integer ranges; zero-padded ranges (001..100) are out of scope.

Structs

Options

Options controlling the generated regex. Construct with Options::default and the builder methods.

Functions

to_regex_range

Generate a regex source matching every integer from min to max (inclusive), using the default Options.

to_regex_range_with_options

Generate a regex source matching every integer from min to max (inclusive).