org.jruby.util

Class ByteListHelper

java.lang.Object

org.jruby.util.ByteListHelper

public class ByteListHelper
extends java.lang.Object

Helpers for working with bytelists.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	ByteListHelper.CodePoint
static interface	ByteListHelper.Visit<T,U>

Constructor Summary

Constructors

Constructor and Description
ByteListHelper()

Method Summary

Modifier and Type	Method and Description
static boolean	eachCodePoint(ByteList bytelist, ByteListHelper.CodePoint each) This method assumes the ByteList will be a valid string for the encoding which it is marked as.
static <T> T	split(ByteList value, ByteList pattern, ByteListHelper.Visit<ByteList,T> bodyVisitor, ByteListHelper.Visit<ByteList,T> headVisitor) This method will split a string and call a visitor for each segment between the split pattern.

Methods inherited from class java.lang.Object

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

Constructor Detail

ByteListHelper

public ByteListHelper()

Method Detail

eachCodePoint

public static boolean eachCodePoint(ByteList bytelist,
                                    ByteListHelper.CodePoint each)

This method assumes the ByteList will be a valid string for the encoding which it is marked as. It also assumes slow path mbc walking. If you know you have an ASCII ByteList you should do something else.

Parameters:

bytelist - of the mbc-laden bytes

each - the closure which walks the codepoints

Returns:

true if it walks the whole bytelist or false if it stops.

split

public static <T> T split(ByteList value,
                          ByteList pattern,
                          ByteListHelper.Visit<ByteList,T> bodyVisitor,
                          ByteListHelper.Visit<ByteList,T> headVisitor)

This method will split a string and call a visitor for each segment between the split pattern.

Type Parameters:

T - Return type of visitor

Parameters:

value - to be split

pattern - the pattern to split value with

bodyVisitor - visitor for all but last segment

headVisitor - visitor for the last segment (if null if will use bodyVisitor).

Returns:

last T from headVisitor