com.ibm.icu.lang
Class CharSequences

java.lang.Object
  com.ibm.icu.lang.CharSequences

Deprecated. This API is ICU internal only.

public class CharSequences
extends Object

A number of utilities for dealing with CharSequences and related classes. For accessing codepoints with a CharSequence, also see

• Character.codePointAt(CharSequence, int)
• Character.codePointBefore(CharSequence, int)
• Character.codePointCount(CharSequence, int, int)
• Character.charCount(int)
• Character.offsetByCodePoints(CharSequence, int, int)
• Character.toChars(int, char[], int)
• Character.toCodePoint(char, char)

Author:

markdavis

Status:

Internal. This API is ICU internal only.

Method Summary

int	codePointLength(CharSequence s) Deprecated. This API is ICU internal only.
static int[]	codePoints(CharSequence s) Deprecated. This API is ICU internal only.
static int	compare(CharSequence a, CharSequence b) Deprecated. This API is ICU internal only.
static int	compare(CharSequence string, int codePoint) Deprecated. This API is ICU internal only.
static int	compare(int codepoint, CharSequence a) Deprecated. This API is ICU internal only.
static boolean	equals(CharSequence other, int codepoint) Deprecated. This API is ICU internal only.
static boolean	equals(int codepoint, CharSequence other) Deprecated. This API is ICU internal only.
static <T> boolean	equals(T a, T b) Deprecated. This API is ICU internal only.
static boolean	equalsChars(CharSequence a, CharSequence b) Deprecated. This API is ICU internal only.
static int	getSingleCodePoint(CharSequence s) Deprecated. This API is ICU internal only.
static int	indexOf(CharSequence s, int codePoint) Deprecated. This API is ICU internal only.
static int	matchAfter(CharSequence a, CharSequence b, int aIndex, int bIndex) Deprecated. This API is ICU internal only.
static boolean	onCharacterBoundary(CharSequence s, int i) Deprecated. This API is ICU internal only.

Methods inherited from class java.lang.Object

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

Method Detail

matchAfter

public static int matchAfter(CharSequence a,
                             CharSequence b,
                             int aIndex,
                             int bIndex)

Deprecated. This API is ICU internal only.

Find the longest n such that a[aIndex,n] = b[bIndex,n], and n is on a character boundary.

Status:

Internal. This API is ICU internal only.

codePointLength

public int codePointLength(CharSequence s)

Deprecated. This API is ICU internal only.

Count the code point length. Unpaired surrogates count as 1.

Status:

Internal. This API is ICU internal only.

equals

public static final boolean equals(int codepoint,
                                   CharSequence other)

Deprecated. This API is ICU internal only.

Utility function for comparing codepoint to string without generating new string.

Status:

Internal. This API is ICU internal only.

equals

public static final boolean equals(CharSequence other,
                                   int codepoint)

Deprecated. This API is ICU internal only.

Status:

Internal. This API is ICU internal only.

compare

public static int compare(CharSequence string,
                          int codePoint)

Deprecated. This API is ICU internal only.

Utility to compare a string to a code point. Same results as turning the code point into a string (with the [ugly] new StringBuilder().appendCodePoint(codepoint).toString()) and comparing, but much faster (no object creation). Actually, there is one difference; a null compares as less. Note that this (=String) order is UTF-16 order -- *not* code point order.

Status:

Internal. This API is ICU internal only.

compare

public static int compare(int codepoint,
                          CharSequence a)

Deprecated. This API is ICU internal only.

Utility to compare a string to a code point. Same results as turning the code point into a string and comparing, but much faster (no object creation). Actually, there is one difference; a null compares as less. Note that this (=String) order is UTF-16 order -- *not* code point order.

Status:

Internal. This API is ICU internal only.

getSingleCodePoint

public static int getSingleCodePoint(CharSequence s)

Deprecated. This API is ICU internal only.

Return the value of the first code point, if the string is exactly one code point. Otherwise return Integer.MAX_VALUE.

Status:

Internal. This API is ICU internal only.

equals

public static final <T> boolean equals(T a,
                                       T b)

Deprecated. This API is ICU internal only.

Utility function for comparing objects that may be null string.

Status:

Internal. This API is ICU internal only.

compare

public static int compare(CharSequence a,
                          CharSequence b)

Deprecated. This API is ICU internal only.

Utility for comparing the contents of CharSequences

Status:

Internal. This API is ICU internal only.

equalsChars

public static boolean equalsChars(CharSequence a,
                                  CharSequence b)

Deprecated. This API is ICU internal only.

Utility for comparing the contents of CharSequences

Status:

Internal. This API is ICU internal only.

onCharacterBoundary

public static boolean onCharacterBoundary(CharSequence s,
                                          int i)

Deprecated. This API is ICU internal only.

Are we on a character boundary?

Status:

Internal. This API is ICU internal only.

indexOf

public static int indexOf(CharSequence s,
                          int codePoint)

Deprecated. This API is ICU internal only.

Find code point in string.

Status:

Internal. This API is ICU internal only.

codePoints

public static int[] codePoints(CharSequence s)

Deprecated. This API is ICU internal only.

Utility function for simplified, more robust loops, such as:

   for (int codePoint : CharSequences.codePoints(string)) {
     doSomethingWith(codePoint);
   }
 

Status:

Internal. This API is ICU internal only.