WordBoundary class
A TextBoundary subclass for locating word breaks.
The underlying implementation uses UAX #29 defined default word boundaries.
The default word break rules can be tailored to meet the requirements of different use cases. For instance, the default rule set keeps horizontal whitespaces together as a single word, which may not make sense in a word-counting context -- "hello world" counts as 3 words instead of 2. An example is the moveByWordBoundary variant, which is a tailored word-break locator that more closely matches the default behavior of most platforms and editors when it comes to handling text editing keyboard shortcuts that move or delete word by word.
- Inheritance
-
- Object
- TextBoundary
- WordBoundary
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- moveByWordBoundary → TextBoundary
-
Returns a TextBoundary suitable for handling keyboard navigation
commands that change the current selection word by word.
latefinal
- 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.inherited -
getTextBoundaryAt(
int position) → TextRange -
Returns the text boundary range that encloses the input position.
override
-
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 afterposition.inherited -
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