Struct PatternWhitelistPolicy 

pub struct PatternWhitelistPolicy { /* private fields */ }

Allows only environment variables whose names fully match a regular expression.

Implementations

impl PatternWhitelistPolicy

pub fn new(pattern: String) -> Result<Self, String>

Create a regex-backed whitelist policy.

pub fn pattern(&self) -> &str

Return the original regex pattern string.

Trait Implementations

impl Debug for PatternWhitelistPolicy

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl SubstitutionPolicy for PatternWhitelistPolicy

fn validate(&self, var_name: &str) -> Result<(), SubstitutionError>

Decide whether var_name may be substituted into a config value.

fn description(&self) -> String

Human-readable label included in rejection error messages.