BidiSpan class

Represents a contiguous range of text that has a single direction.

Bidi spans are the result of applying the Unicode Bidirectional Algorithm to a line of text. Each span has a from/to range (relative to line start) and a bidi level that determines direction.

Constructors

BidiSpan(int from, int to, int level)
const

Properties

dir → Direction
Get the direction of this span.
no setter
from → int
The start of the span (relative to line start).
final
hashCode → int
The hash code for this object.
no setteroverride
level → int
The bidi level of the span.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
to → int
The end of the span.
final

Methods

forward(bool isForward, Direction dir) → bool
Check if movement in the given direction is forward in this span.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
side(bool end, Direction dir) → int
Get the position on a given side of the span.
toString() → String
A string representation of this object.
override

Operators

operator ==(Object other) → bool
The equality operator.
override

Static Methods

find(List<BidiSpan> order, int index, int level, int assoc) → int
Find a span containing the given index.