Struct ErnParser 

pub struct ErnParser { /* private fields */ }

A parser for converting ERN strings into structured Ern objects.

The ErnParser takes an ERN string in the format ern:domain:category:account:root/part1/part2/... and parses it into its constituent components, performing validation on each part.

Implementations

impl ErnParser

pub fn new(ern: String) -> Self

Creates a new ErnParser for the given ERN string.

Arguments

• ern - The ERN string to parse, in the format ern:domain:category:account:root/part1/part2/...

Example

let parser = ErnParser::new("ern:my-app:users:tenant123:profile/settings".to_string());

pub fn parse(&self) -> Result<Ern, ErnError>

Parses the ERN string into a structured Ern object.

This method validates the ERN format, extracts each component, and ensures all parts meet the validation requirements.

Returns

• Ok(Ern) - A structured Ern object containing all the parsed components
• Err(ErnError) - If the ERN string is invalid or any component fails validation

Example

let parser = ErnParser::new("ern:my-app:users:tenant123:profile/settings".to_string());
let ern = parser.parse()?;

assert_eq!(ern.domain.as_str(), "my-app");
assert_eq!(ern.category.as_str(), "users");
assert_eq!(ern.account.as_str(), "tenant123");
assert_eq!(ern.parts.to_string(), "settings");