Struct LineInfo 

pub struct LineInfo {
    pub start_byte: usize,
    pub start_char: usize,
    pub end_break: Break,
    pub width: f32,
}

Information about a single line of text within a &str.

Info is a minimal amount of information that can be stored for efficient reasoning about blocks of text given some &str. The start and end_break can be used for indexing into the &str, and the width can be used for calculating line Rects, alignment, etc.

Fields

start_byte: usize

The index into the &str that represents the first character within the line.

start_char: usize

The character index of the first character in the line.

end_break: Break

The index within the &str at which this line breaks into a new line, along with the index at which the following line begins. The variant describes whether the break is caused by a Newline character or a Wrap by the given wrap function.

width: f32

The total width of all characters within the line.

Implementations

impl LineInfo

pub fn end_byte(&self) -> usize

The end of the byte index range for indexing into the slice.

pub fn end_char(&self) -> usize

The end of the index range for indexing into the slice.

pub fn byte_range(self) -> Range<usize>

The index range for indexing (via bytes) into the original str slice.

pub fn char_range(self) -> Range<usize>

The index range for indexing into a char iterator over the original str slice.

Trait Implementations

impl Clone for LineInfo

fn clone(&self) -> LineInfo

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LineInfo

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

Formats the value using the given formatter.

impl PartialEq for LineInfo

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for LineInfo

impl StructuralPartialEq for LineInfo