Enum CaseStrategy 

pub enum CaseStrategy {
    CaseSensitive,
    CaseUnsensitive,
    Preserve,
}

Which strategy to use for case

Variants

CaseSensitive

A ≠ a

Alphabet can have same letters if in different case.

Example

let alphabet = &['A', 'a', 'B', 'b', 'C', 'c'];

“A, a, B, b, C, c,…”

CaseUnsensitive

A = a

Alphabet can only have uppercase letters.

Example

let alphabet = &['A', 'B', 'C'];

Preserve

The case of the letter will remain the same after encrypting or decrypting:

ggzLCB ⇒ cipHER

Alphabet can only have uppercase letters.

Example

let alphabet = &['A', 'B', 'C'];

Trait Implementations

impl Clone for CaseStrategy

fn clone(&self) -> CaseStrategy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CaseStrategy

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

Formats the value using the given formatter.

impl Default for CaseStrategy

fn default() -> CaseStrategy

Returns the “default value” for a type.

impl Display for CaseStrategy

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

Formats the value using the given formatter.

impl ValueEnum for CaseStrategy

fn value_variants<'a>() -> &'a [Self]

All possible argument values, in display order.

fn to_possible_value<'a>(&self) -> Option<PossibleValue>

The canonical argument value.

fn from_str(input: &str, ignore_case: bool) -> Result<Self, String>

Parse an argument into Self.

impl Copy for CaseStrategy