Struct TextRange 

pub struct TextRange {
    pub start: i32,
    pub end: i32,
}

A range of characters in a string of text.

Fields

start: i32

The index of the first character in the range.

If start and end are both -1, the text range is empty.

end: i32

The next index after the characters in this range.

Implementations

impl TextRange

pub const EMPTY: TextRange

A text range that starts and ends at offset -1: the empty range.

pub const fn new(start: i32, end: i32) -> TextRange

Creates a new TextRange. The start and end must be at least -1.

pub const fn collapsed(offset: i32) -> TextRange

A text range that starts and ends at offset.

pub fn is_valid(&self) -> bool

Whether this range represents a valid position in the text.

pub fn is_collapsed(&self) -> bool

Whether this range is empty (but still potentially placed inside the text).

pub fn is_normalized(&self) -> bool

Whether the start of this range precedes the end.

pub fn text_before<'a>(&self, text: &'a str) -> &'a str

The text before this range.

pub fn text_after<'a>(&self, text: &'a str) -> &'a str

The text after this range.

pub fn text_inside<'a>(&self, text: &'a str) -> &'a str

The text inside this range.

Trait Implementations

impl Clone for TextRange

fn clone(&self) -> TextRange

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for TextRange

impl Debug for TextRange

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

Formats the value using the given formatter.

impl Eq for TextRange

impl From<TextSelection> for TextRange

fn from(selection: TextSelection) -> TextRange

Converts to this type from the input type.

impl Hash for TextRange

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for TextRange

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for TextRange