Enum stam::Cursor

pub enum Cursor {
    BeginAligned(usize),
    EndAligned(isize),
}

A cursor points to a specific point in a text. I Used to select offsets. Units are unicode codepoints (not bytes!) and are 0-indexed.

The cursor can be either begin-aligned or end-aligned. Where BeginAlignedCursor(0) is the first unicode codepoint in a referenced text, and EndAlignedCursor(0) the last one.

Variants

BeginAligned(usize)

Cursor relative to the start of a text. Has a value of 0 or higher

EndAligned(isize)

Cursor relative to the end of a text. Has a value of 0 or lower. The last character of a text begins at Cursor::EndAligned(-1) and ends at Cursor::EndAligned(0)

Trait Implementations

impl Clone for Cursor

fn clone(&self) -> Cursor

Returns a copy of the value.

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

Performs copy-assignment from source.

impl DataSize for Cursor

where usize: DataSize, isize: DataSize,

const IS_DYNAMIC: bool = true

If true, the type has a heap size that can vary at runtime, depending on the actual value.

const STATIC_HEAP_SIZE: usize = 0usize

The amount of space a value of the type always occupies. If IS_DYNAMIC is false, this is the total amount of heap memory occupied by the value. Otherwise this is a lower bound.

fn estimate_heap_size(&self) -> usize

Estimates the size of heap memory taken up by this value.

impl Debug for Cursor

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

Formats the value using the given formatter.

impl<'bytes, Ctx> Decode<'bytes, Ctx> for Cursor

fn decode( __d777: &mut Decoder<'bytes>, __ctx777: &mut Ctx ) -> Result<Cursor, Error>

Decode a value using the given Decoder.

fn nil() -> Option<Self>

If possible, return a nil value of Self.

impl<'de> Deserialize<'de> for Cursor

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Cursor

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

Formats the value using the given formatter.

impl<Ctx> Encode<Ctx> for Cursor

fn encode<__W777>( &self, __e777: &mut Encoder<__W777>, __ctx777: &mut Ctx ) -> Result<(), Error<__W777::Error>>

where __W777: Write,

Encode a value of this type using the given Encoder.

fn is_nil(&self) -> bool

Is this value of Self a nil value?

impl From<usize> for Cursor

fn from(cursor: usize) -> Self

Converts to this type from the input type.

impl PartialEq for Cursor

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

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

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

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

impl Serialize for Cursor

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl TryFrom<&str> for Cursor

type Error = StamError

The type returned in the event of a conversion error.

fn try_from(cursor: &str) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<isize> for Cursor

type Error = StamError

The type returned in the event of a conversion error.

fn try_from(cursor: isize) -> Result<Self, Self::Error>

Performs the conversion.

impl Copy for Cursor

impl StructuralPartialEq for Cursor