is_slug

Checks whether s has the shape of an ASCII URL slug: non-empty, made only of lowercase ASCII letters, digits and hyphens, with no leading, trailing or doubled hyphen.

This is ASCII-only by design, even though slugify keeps Unicode letters (slugify("café") is "café", which is_slug rejects): a slug meant to go unescaped in a URL path is conventionally ASCII. For ASCII input, is_slug(&slugify(s)) is true whenever slugify(s) is not empty.

Import

use helpers4::validate::is_slug;

Cargo feature validate (enabled by default). To compile only this module:

cargo add helpers4 --no-default-features --features validate

or in Cargo.toml:

[dependencies]
helpers4 = { version = "0.0.5", default-features = false, features = ["validate"] }

Signature

pub fn is_slug(s: &str) -> bool

Parameters

Parameter	Type	Description
s	&str	The text to check.

Returns

bool — true when s already has the shape of a slug.

Examples

use helpers4::validate::is_slug;

assert!(is_slug("hello-world"));
assert!(is_slug("v2"));
assert!(!is_slug("Hello-World"));
assert!(!is_slug("-leading"));
assert!(!is_slug("double--hyphen"));
assert!(!is_slug(""));

Source

src/validate/is_slug.rs