org.apache.commons.lang3.text.translate
Class CodePointTranslator

java.lang.Object
  org.apache.commons.lang3.text.translate.CharSequenceTranslator
      org.apache.commons.lang3.text.translate.CodePointTranslator

Direct Known Subclasses:

NumericEntityEscaper, UnicodeEscaper

public abstract class CodePointTranslator
extends CharSequenceTranslator

Helper subclass to CharSequenceTranslator to allow for translations that will replace up to one character at a time.

Since:

3.0

Version:

$Id: CodePointTranslator.java 1139924 2011-06-26 19:32:14Z mbenson $

Constructor Summary

CodePointTranslator()

Method Summary

int	translate(CharSequence input, int index, Writer out) Implementation of translate that maps onto the abstract translate(int, Writer) method.
abstract boolean	translate(int codepoint, Writer out) Translate the specified codepoint into another.

Methods inherited from class org.apache.commons.lang3.text.translate.CharSequenceTranslator

hex, translate, translate, with

Methods inherited from class java.lang.Object

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

Constructor Detail

CodePointTranslator

public CodePointTranslator()

Method Detail

translate

public final int translate(CharSequence input,
                           int index,
                           Writer out)
                    throws IOException

Implementation of translate that maps onto the abstract translate(int, Writer) method. Translate a set of codepoints, represented by an int index into a CharSequence, into another set of codepoints. The number of codepoints consumed must be returned, and the only IOExceptions thrown must be from interacting with the Writer so that the top level API may reliable ignore StringWriter IOExceptions.

Specified by:

translate in class CharSequenceTranslator

Parameters:

input - CharSequence that is being translated

index - int representing the current point of translation

out - Writer to translate the text to

Returns:

int count of codepoints consumed

Throws:

IOException - if and only if the Writer produces an IOException

translate

public abstract boolean translate(int codepoint,
                                  Writer out)
                           throws IOException

Translate the specified codepoint into another.

Parameters:

codepoint - int character input to translate

out - Writer to optionally push the translated output to

Returns:

boolean as to whether translation occurred or not

Throws:

IOException - if and only if the Writer produces an IOException