Struct regex::internal::Char

pub struct Char(u32);

An inline representation of Option<char>.

This eliminates the need to do case analysis on Option<char> to determine ordinality with other characters.

(The Option<char> is not related to encoding. Instead, it is used in the matching engines to represent the beginning and ending boundaries of the search text.)

Methods

impl Char

pub fn is_none(self) -> bool

Returns true iff the character is absent.

pub fn len_utf8(self) -> usize

Returns the length of the character's UTF-8 encoding.

If the character is absent, then 0 is returned.

pub fn is_word_char(self) -> bool

Returns true iff the character is a word character.

If the character is absent, then false is returned.

pub fn is_word_byte(self) -> bool

Returns true iff the byte is a word byte.

If the byte is absent, then false is returned.

Trait Implementations

impl Clone for Char

fn clone(&self) -> Char

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for Char

impl Hash for Char

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,

Feeds a slice of this type into the given [Hasher].

impl PartialEq for Char

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

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

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

This method tests for !=.

impl Eq for Char

fn assert_receiver_is_total_eq(&self)

impl PartialOrd for Char

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

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

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

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

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

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

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

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

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

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

impl Ord for Char

fn cmp(&self, other: &Char) -> 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.

impl Debug for Char

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

Formats the value using the given formatter.

impl From<char> for Char

fn from(c: char) -> Char

Performs the conversion.

impl From<Option<char>> for Char

fn from(c: Option<char>) -> Char

Performs the conversion.

impl PartialEq<char> for Char

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

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

#[must_use] fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl PartialEq<Char> for char

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

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

#[must_use] fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl PartialOrd<char> for Char

fn partial_cmp(&self, other: &char) -> 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 PartialOrd<Char> for char

fn partial_cmp(&self, other: &Char) -> 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.