TextBoundary class abstract

An interface for retrieving the logical text boundary (as opposed to the visual boundary) at a given code unit offset in a document.

Either the getTextBoundaryAt method, or both the getLeadingTextBoundaryAt method and the getTrailingTextBoundaryAt method must be implemented.

Implementers

Constructors

TextBoundary()
A constant constructor to enable subclass override.
const

Properties

hashCode int
The hash code for this object.
no setterinherited
runtimeType Type
A representation of the runtime type of the object.
no setterinherited

Methods

getLeadingTextBoundaryAt(int position) int?
Returns the offset of the closest text boundary before or at the given position, or null if no boundaries can be found.
getTextBoundaryAt(int position) TextRange
Returns the text boundary range that encloses the input position.
getTrailingTextBoundaryAt(int position) int?
Returns the offset of the closest text boundary after the given position, or null if there is no boundary can be found after position.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() String
A string representation of this object.
inherited

Operators

operator ==(Object other) bool
The equality operator.
inherited