Package org.jline.shell

Interface LineExpander

All Known Implementing Classes:

ConsoleLineExpander, DefaultLineExpander

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface LineExpander

Expands variables and other expressions in a command line before parsing.

A LineExpander operates on the full command line string (not per-word like Expander). It is called after alias expansion and before pipeline parsing.

The exact expansion syntax is controlled by the implementation. Users can provide their own LineExpander to support custom variable syntax, glob expansion, or other transformations.

Example:

 LineExpander expander = (line, session) -> line.replace("$HOME", "/home/user");
 

Since:

4.0

See Also:

• DefaultLineExpander
• ShellBuilder.lineExpander(LineExpander)

Method Summary

Modifier and Type	Method	Description
String	expand(String line, CommandSession session)	Expands variables and expressions in the given command line.

Method Details

expand

String expand(String line,
 CommandSession session)

Expands variables and expressions in the given command line.

Parameters:

line - the command line to expand

session - the current command session (for variable lookup)

Returns:

the expanded command line