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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.language.opennlp;
class WordCharDetector {
public static boolean isWordChar(int codepoint) {
int unicodeGeneralCategory = Character.getType(codepoint);
switch (unicodeGeneralCategory) {
case Character.LOWERCASE_LETTER:
case Character.OTHER_LETTER:
case Character.TITLECASE_LETTER:
case Character.UPPERCASE_LETTER:
case Character.MODIFIER_LETTER:
return true;
/*
* these are the other categories, currently considered non-word-chars:
*
case Character.CONNECTOR_PUNCTUATION:
case Character.CONTROL:
case Character.CURRENCY_SYMBOL:
case Character.DASH_PUNCTUATION:
case Character.ENCLOSING_MARK:
case Character.END_PUNCTUATION:
case Character.FINAL_QUOTE_PUNCTUATION:
case Character.FORMAT:
case Character.INITIAL_QUOTE_PUNCTUATION:
case Character.MATH_SYMBOL:
case Character.MODIFIER_SYMBOL:
case Character.NON_SPACING_MARK:
case Character.OTHER_PUNCTUATION:
case Character.OTHER_SYMBOL:
case Character.PRIVATE_USE:
case Character.START_PUNCTUATION:
case Character.SURROGATE:
case Character.UNASSIGNED:
case Character.DECIMAL_DIGIT_NUMBER:
case Character.LETTER_NUMBER:
case Character.OTHER_NUMBER:
case Character.COMBINING_SPACING_MARK:
case Character.LINE_SEPARATOR:
case Character.SPACE_SEPARATOR:
case Character.PARAGRAPH_SEPARATOR:
*
*/
default:
return false;
}
}
}
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