Struct KeepConfig 

pub struct KeepConfig { /* private fields */ }

Configuration that keeps selected segments visible while masking the remainder.

The policy operates on Unicode scalar values. If the configuration keeps the entire value visible, the output is unchanged.

Use the constructor methods KeepConfig::first and KeepConfig::last to create instances.

Implementations

impl KeepConfig

pub fn first(visible_prefix: usize) -> Self

Constructs a configuration that keeps only the first visible_prefix scalar values.

pub fn last(visible_suffix: usize) -> Self

Constructs a configuration that keeps only the last visible_suffix scalar values.

pub fn both(visible_prefix: usize, visible_suffix: usize) -> Self

Constructs a configuration that keeps both leading and trailing characters visible.

If visible_prefix + visible_suffix >= total_length, the entire value is kept visible (no masking occurs).

pub fn with_mask_char(self, mask_char: char) -> Self

Uses a specific masking character.

Trait Implementations

impl Clone for KeepConfig

fn clone(&self) -> KeepConfig

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for KeepConfig

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

Formats the value using the given formatter.

impl Copy for KeepConfig