CharSequenceUtils (Lucene 9.0.0 kuromoji API)

java.lang.Object
- org.apache.lucene.analysis.ja.completion.CharSequenceUtils

public class CharSequenceUtils
extends Object

Utility functions for JapaneseCompletionFilter

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static boolean`	`isFullWidthLowercaseAlphabet(char ch)`	Checks if a char is a full-width lowercase alphabet
`static boolean`	`isKana(CharSequence s)`	Checks if a char sequence is composed only of Katakana or hiragana
`static boolean`	`isKatakanaOrHWAlphabets(CharSequence ref)`	Checks if a char sequence is composed only of Katakana or lowercase alphabets
`static boolean`	`isLowercaseAlphabets(CharSequence s)`	Checks if a char sequence is composed only of lowercase alphabets
`static String`	`toKatakana(CharSequence s)`	Convert all hiragana in a string into kanataka

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - isLowercaseAlphabets
```
public static boolean isLowercaseAlphabets(CharSequence s)
```
    Checks if a char sequence is composed only of lowercase alphabets
  - isKana
```
public static boolean isKana(CharSequence s)
```
    Checks if a char sequence is composed only of Katakana or hiragana
  - isKatakanaOrHWAlphabets
```
public static boolean isKatakanaOrHWAlphabets(CharSequence ref)
```
    Checks if a char sequence is composed only of Katakana or lowercase alphabets
  - isFullWidthLowercaseAlphabet
```
public static boolean isFullWidthLowercaseAlphabet(char ch)
```
    Checks if a char is a full-width lowercase alphabet
  - toKatakana
```
public static String toKatakana(CharSequence s)
```
    Convert all hiragana in a string into kanataka