Package org.jline.style

JLine Style package provides a comprehensive styling system for terminal output.

This package contains classes and interfaces for defining, managing, and applying styles to text displayed in the terminal. It supports:

• Style specifications using a simple syntax (e.g., "bold,fg:red")
• Named styles that can be referenced and reused
• Style expressions with the format @{style text}
• Style bundles using Java interfaces and proxies
• Style sources for storing and retrieving style definitions

The styling system integrates with JLine's AttributedString and AttributedStyle classes to provide rich text formatting capabilities.

Key components of this package include:

• StyleBundle - Interface for proxy-based style bundles
• StyleExpression - Evaluates style expressions
• StyleFactory - Creates styled strings
• StyleResolver - Resolves named styles
• StyleSource - Interface for style storage
• Styler - Facade for style operations

Example usage:

 // Using StyleFactory
 StyleFactory factory = Styler.factory("mygroup");
 AttributedString text = factory.style("bold,fg:red", "Important message");

 // Using StyleExpression
 StyleExpression expr = new StyleExpression(Styler.resolver("mygroup"));
 AttributedString text = expr.evaluate("Normal text with @{bold,fg:red important} parts");

 // Using StyleBundle
 @StyleBundle.StyleGroup("mygroup")
 interface MyStyles extends StyleBundle {
     @DefaultStyle("bold,fg:red")
     AttributedString important(String text);
 }
 MyStyles styles = Styler.bundle(MyStyles.class);
 AttributedString text = styles.important("Important message");
 

Since:

3.4

Interface Summary

Interface	Description
StyleBundle	Marker interface for proxy-based style bundles.
StyleSource	Interface for sources of style configuration.

Class Summary

Class	Description
InterpolationHelper	Interpolation.
MemoryStyleSource	In-memory implementation of StyleSource.
NopStyleSource	A no-operation implementation of StyleSource that always returns null.
StyledWriter	A PrintWriter extension that understands and evaluates StyleExpression syntax.
StyleExpression	Provides evaluation of style expressions in the format @{style value}.
StyleFactory	Factory for creating styled strings using a specific style group.
Styler	Style facade that provides static utility methods for working with styles.
StyleResolver	Resolves named (or source-referenced) AttributedStyle for a specific style group.

Enum Summary

Enum	Description
StyleColor	Deprecated. use Colors.rgbColor(String) instead

Annotation Types Summary

Annotation Type	Description
StyleBundle.DefaultStyle	Annotation that provides a default style specification for a method in a StyleBundle interface.
StyleBundle.StyleGroup	Annotation that specifies the style group name for a StyleBundle interface.
StyleBundle.StyleName	Annotation that allows overriding the style name for a method in a StyleBundle interface.