Class OctalUnescaper

  extended by org.apache.commons.lang3.text.translate.CharSequenceTranslator
      extended by org.apache.commons.lang3.text.translate.OctalUnescaper

public class OctalUnescaper
extends CharSequenceTranslator

Translate escaped octal Strings back to their octal values. For example, "\45" should go back to being the specific value (a %). Note that this currently only supports the viable range of octal for Java; namely 1 to 377. This is both because parsing Java is the main use case and Integer.parseInt throws an exception when values are larger than octal 377.

$Id: 967237 2010-07-23 20:08:57Z mbenson $

Constructor Summary
Method Summary
 int translate(CharSequence input, int index, Writer out)
          Translate a set of codepoints, represented by an int index into a CharSequence, into another set of codepoints.
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


public OctalUnescaper()
Method Detail


public int translate(CharSequence input,
                     int index,
                     Writer out)
              throws IOException
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
input - CharSequence that is being translated
index - int representing the current point of translation
out - Writer to translate the text to
int count of codepoints consumed
IOException - if and only if the Writer produces an IOException

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