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8273259: Character.getName doesn't follow Unicode spec for ideographs

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Reviewed-by: bpb, lancea, iris, darcy
This commit is contained in:
Naoto Sato 2021-09-13 16:06:10 +00:00
parent f9b2507f3e
commit 4cfa230e2d
1 changed files with 21 additions and 9 deletions
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30
src/java.base/share/classes/java/lang/Character.java
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@ -11296,14 +11296,14 @@ class Character implements java.io.Serializable, Comparable<Character>, Constabl
}
/**
* Returns the Unicode name of the specified character
* Returns the name of the specified character
* {@code codePoint}, or null if the code point is
* {@link #UNASSIGNED unassigned}.
* <p>
* Note: if the specified character is not assigned a name by
* If the specified character is not assigned a name by
* the <i>UnicodeData</i> file (part of the Unicode Character
* Database maintained by the Unicode Consortium), the returned
* name is the same as the result of expression:
* name is the same as the result of the expression:
*
* <blockquote>{@code
* Character.UnicodeBlock.of(codePoint).toString().replace('_', ' ')
@ -11312,9 +11312,15 @@ class Character implements java.io.Serializable, Comparable<Character>, Constabl
*
* }</blockquote>
*
* For the {@code codePoint}s in the <i>UnicodeData</i> file, the name
* returned by this method follows the naming scheme in the
* "Unicode Name Property" section of the Unicode Standard. For other
* code points, such as Hangul/Ideographs, The name generation rule above
* differs from the one defined in the Unicode Standard.
*
* @param codePoint the character (Unicode code point)
*
* @return the Unicode name of the specified character, or null if
* @return the name of the specified character, or null if
* the code point is unassigned.
*
* @throws IllegalArgumentException if the specified
@ -11343,11 +11349,11 @@ class Character implements java.io.Serializable, Comparable<Character>, Constabl
/**
* Returns the code point value of the Unicode character specified by
* the given Unicode character name.
* the given character name.
* <p>
* Note: if a character is not assigned a name by the <i>UnicodeData</i>
* If a character is not assigned a name by the <i>UnicodeData</i>
* file (part of the Unicode Character Database maintained by the Unicode
* Consortium), its name is defined as the result of expression:
* Consortium), its name is defined as the result of the expression:
*
* <blockquote>{@code
* Character.UnicodeBlock.of(codePoint).toString().replace('_', ' ')
@ -11359,12 +11365,18 @@ class Character implements java.io.Serializable, Comparable<Character>, Constabl
* The {@code name} matching is case insensitive, with any leading and
* trailing whitespace character removed.
*
* @param name the Unicode character name
* For the code points in the <i>UnicodeData</i> file, this method
* recognizes the name which conforms to the name defined in the
* "Unicode Name Property" section in the Unicode Standard. For other
* code points, this method recognizes the name generated with
* {@link #getName(int)} method.
*
* @param name the character name
*
* @return the code point value of the character specified by its name.
*
* @throws IllegalArgumentException if the specified {@code name}
* is not a valid Unicode character name.
* is not a valid character name.
* @throws NullPointerException if {@code name} is {@code null}
*
* @since 9