Struct regex_syntax::ast::Position

pub struct Position {
    pub offset: usize,
    pub line: usize,
    pub column: usize,
}

A single position in a regular expression.

A position encodes one half of a span, and include the byte offset, line number and column number.

Fields

offset: usize

The absolute offset of this position, starting at 0 from the beginning of the regular expression pattern string.

line: usize

The line number, starting at 1.

column: usize

The approximate column number, starting at 1.

Methods

impl Position

pub fn new(offset: usize, line: usize, column: usize) -> Position

Create a new position with the given information.

offset is the absolute offset of the position, starting at 0 from the beginning of the regular expression pattern string.

line is the line number, starting at 1.

column is the approximate column number, starting at 1.

Trait Implementations

impl PartialEq<Position> for Position

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl Clone for Position

fn clone(&self) -> Position

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Ord for Position

fn cmp(&self, other: &Position) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

🔬 This is a nightly-only experimental API. (clamp)

Restrict a value to a certain interval.

impl Eq for Position

impl Copy for Position

impl PartialOrd<Position> for Position

fn partial_cmp(&self, other: &Position) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

#[must_use]

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

This method tests less than (for self and other) and is used by the < operator.

#[must_use]

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

#[must_use]

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

This method tests greater than (for self and other) and is used by the > operator.

#[must_use]

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

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Debug for Position

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

Formats the value using the given formatter.