org.yaml.snakeyaml.external.com.google.gdata.util.common.base

Interface Escaper

All Known Implementing Classes:

PercentEscaper, UnicodeEscaper

public interface Escaper

An object that converts literal text into a format safe for inclusion in a particular context (such as an XML document). Typically (but not always), the inverse process of "unescaping" the text is performed automatically by the relevant parser.

For example, an XML escaper would convert the literal string "Foo<Bar>" into "Foo<Bar>" to prevent "<Bar>" from being confused with an XML tag. When the resulting XML document is parsed, the parser API will return this text as the original literal string "Foo<Bar>".

An Escaper instance is required to be stateless, and safe when used concurrently by multiple threads.

Method Summary

Modifier and Type	Method and Description
Appendable	escape(Appendable out) Returns an Appendable instance which automatically escapes all text appended to it before passing the resulting text to an underlying Appendable.
String	escape(String string) Returns the escaped form of a given literal string.

Method Detail

escape

String escape(String string)

Returns the escaped form of a given literal string.

Note that this method may treat input characters differently depending on the specific escaper implementation.

Parameters:

string - the literal string to be escaped

Returns:

the escaped form of string

Throws:

NullPointerException - if string is null

IllegalArgumentException - if string contains badly formed UTF-16 or cannot be escaped for any other reason

escape

Appendable escape(Appendable out)

Returns an Appendable instance which automatically escapes all text appended to it before passing the resulting text to an underlying Appendable.

Note that this method may treat input characters differently depending on the specific escaper implementation.

Parameters:

out - the underlying Appendable to append escaped output to

Returns:

an Appendable which passes text to out after escaping it.