Struct StrIndex 

pub struct StrIndex {
    pub char_index: usize,
    pub byte_index: usize,
}

Dealing with string indices can be hard, this struct ensures that both the character and byte index are provided for correct indexing.

char_index and byte_index are not guaranteed to agree with each other. For ascii only text they are always equal, but multi byte characters make them diverge:

// 'ö' is 1 character but 2 bytes in UTF-8, so the position after
// "Abcöö" is character 5 but byte 7.
assert_eq!(camel_case_until("Abc\u{f6}\u{f6}DD"), StrIndex::new(5, 7));

Fields

char_index: usize

The number of characters between the start of the str and this position

byte_index: usize

The number of bytes between the start of the str and this position

Implementations

impl StrIndex

pub fn new(char_index: usize, byte_index: usize) -> Self

Creates a StrIndex from character and byte indices.

Trait Implementations

impl Debug for StrIndex

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

Formats the value using the given formatter.

impl Default for StrIndex

fn default() -> Self

Returns the “default value” for a type.

impl Eq for StrIndex

impl PartialEq for StrIndex

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for StrIndex

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 16 bytes