Enum TextDirection 

pub enum TextDirection {
    LeftToRight,
    RightToLeft,
    Auto,
}

Text directionality of document content.

Corresponds to the HTML dir attribute and bdi element directionality.

Variants

LeftToRight

Left-to-right text flow (default for Latin scripts)

RightToLeft

Right-to-left text flow (Hebrew, Arabic, Urdu, etc.)

Auto

Automatic directionality detection

Implementations

impl TextDirection

pub fn parse(s: &str) -> Option<Self>

Parse a text direction from string value.

Arguments

• s - Direction string (“ltr”, “rtl”, or “auto”)

Returns

Some(TextDirection) if valid, None otherwise.

Examples

assert_eq!(TextDirection::parse("ltr"), Some(TextDirection::LeftToRight));
assert_eq!(TextDirection::parse("rtl"), Some(TextDirection::RightToLeft));
assert_eq!(TextDirection::parse("auto"), Some(TextDirection::Auto));
assert_eq!(TextDirection::parse("invalid"), None);

Trait Implementations

impl Clone for TextDirection

fn clone(&self) -> TextDirection

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TextDirection

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for TextDirection

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for TextDirection

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

Formats the value using the given formatter.

impl Hash for TextDirection

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 TextDirection

fn eq(&self, other: &TextDirection) -> 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 Serialize for TextDirection

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for TextDirection

impl Eq for TextDirection

impl StructuralPartialEq for TextDirection