Enum Mask 

pub enum Mask {
    PerChar(char),
    Token(String),
    Shape,
    Pseudonym(Pseudonyms),
}

What a redaction writes over the characters it removes.

Variants

PerChar(char)

One copy of the character for each character removed, so every offset and column after the span survives.

Token(String)

One copy of the token for each masked run, whatever the run’s length.

Shape

Every letter and digit masked and every other byte kept, so the run keeps the shape its kind is recognized by and the redacted copy still lexes as the original did.

Pseudonym(Pseudonyms)

Each distinct value replaced by a stable name per kind, so a value that recurred still recurs and the axes that read recurrence - echo, the joins, the templates - read the redacted copy as they read the original.

Implementations

impl Mask

pub fn parse(src: &str) -> Result<Mask, String>

A one-character string masks per character; shape and pseudonym name the two masks that read the run; any other longer string is the token each masked run becomes.

Errors

An empty mask, which would leave the removed characters nothing in their place.

Trait Implementations

impl Clone for Mask

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Mask

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

Formats the value using the given formatter.

impl Eq for Mask

impl PartialEq for Mask

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Mask