Struct regex_syntax::utf8::ScalarRange

struct ScalarRange {
    start: u32,
    end: u32,
}

Fields

start: u32

end: u32

Implementations

impl ScalarRange

fn split(&self) -> Option<(ScalarRange, ScalarRange)>

split splits this range if it overlaps with a surrogate codepoint.

Either or both ranges may be invalid.

fn is_valid(&self) -> bool

is_valid returns true if and only if start <= end.

fn as_ascii(&self) -> Option<Utf8Range>

as_ascii returns this range as a Utf8Range if and only if all scalar values in this range can be encoded as a single byte.

fn is_ascii(&self) -> bool

is_ascii returns true if the range is ASCII only (i.e., takes a single byte to encode any scalar value).

fn encode(&self, start: &mut [u8], end: &mut [u8]) -> usize

encode writes the UTF-8 encoding of the start and end of this range to the corresponding destination slices, and returns the number of bytes written.

The slices should have room for at least MAX_UTF8_BYTES.

Trait Implementations

impl Debug for ScalarRange

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

Formats the value using the given formatter.