FallbackPrompt class

Line-mode prompt primitives for limited terminal environments.

These helpers only use TerminalContext.input.readLineSync, TerminalContext.output.write, and TerminalContext.output.writeln. They do not enter raw mode, hide the cursor, clear the screen, or emit ANSI sequences.

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

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

Static Methods

confirm({required String title, bool defaultValue = false}) → bool

Reads a yes/no answer.

form({required List<FallbackFormField> fields, String? crossValidator(List<String> values)?, bool returnDefaultOnEndOfInput = true}) → FallbackFormResult?

Reads a multi-field form in line mode.

multiSelect<T>({required String title, required List<T> options, Set<int>? defaultIndices, int? fallbackIndex, FallbackLabelBuilder<T>? labelBuilder, bool returnDefaultOnEndOfInput = true}) → List<T>

Reads one-based multi-selection input.

number({required String title, num? defaultValue, num? min, num? max, FallbackNumberValidator? validator, bool returnDefaultOnEndOfInput = true}) → num?

Reads a number.

password({required String title, bool required = true, FallbackTextValidator? validator, bool returnDefaultOnEndOfInput = true}) → String?

Reads a password using the same line-mode path as text.

range({required String title, String? startTitle, String? endTitle, num? startDefault, num? endDefault, num? min, num? max, FallbackNumberValidator? validator, bool returnDefaultOnEndOfInput = true}) → FallbackRangeResult?

Reads an ordered numeric range using the same validation path as number.

singleSelect<T>({required String title, required List<T> options, int? defaultIndex = 0, FallbackLabelBuilder<T>? labelBuilder, bool returnDefaultOnEndOfInput = true}) → T?

Reads a one-based single selection.

text({required String title, String? defaultValue, bool required = false, FallbackTextValidator? validator, bool returnDefaultOnEndOfInput = true}) → String?

Reads a line of text.