Package com.globalmentor.io

Class Filenames.Extensions

java.lang.Object

com.globalmentor.io.Filenames.Extensions

Enclosing class:

Filenames

public static class Filenames.Extensions
extends Object

Utilities for working directly with filename extensions themselves, separate from filenames.

Author:

Garret Wilson

Method Summary

Modifier and Type	Method	Description
static boolean	equals(String extension1, String extension2)	Checks to see if two extensions are equal.
static String	normalize(String extension)	Normalizes an extension to its ASCII lowercase form.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

normalize

public static String normalize(@Nonnull
 String extension)

Normalizes an extension to its ASCII lowercase form. Non-ASCII characters are unchanged. Thus txt, TXT, and tXt will all return the normalized form txt.

Parameters:

extension - The extension to normalize.

Returns:

The normalized form of the extension.

equals

public static boolean equals(@Nullable
 String extension1,
 @Nullable
 String extension2)

Checks to see if two extensions are equal. Comparison is done on an ASCII case-insensitive basic. Thus txt, TXT, and tXt are all considered equal.

API Note:

This API follows Object.equals(Object) and String.equalsIgnoreCase(String) in allowing either or both arguments to be null.

Implementation Specification:

This implementation delegates to ASCII.equalsIgnoreCase(CharSequence, CharSequence).

Parameters:

extension1 - The first extension to compare.

extension2 - The second extension to compare.

Returns:

true