java.lang.Character.isBmpCodePoint()方法的使用及代码示例

x33g5p2x  于2022-01-17 转载在 其他  
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本文整理了Java中java.lang.Character.isBmpCodePoint()方法的一些代码示例，展示了Character.isBmpCodePoint()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Character.isBmpCodePoint()方法的具体详情如下：
包路径：java.lang.Character
类名称：Character
方法名：isBmpCodePoint

Character.isBmpCodePoint介绍

[英]Returns true if the given code point is in the Basic Multilingual Plane (BMP). Such code points can be represented by a single char.
[中]如果给定代码点位于基本多语言平面（BMP）中，则返回true。这样的代码点可以用单个字符表示。

代码示例

代码示例来源：origin: goldmansachs/gs-collections

  1. public boolean accept(int codePoint)
  2.   {
  3.     return Character.isBmpCodePoint(codePoint);
  4.   }
  5. };

代码示例来源：origin: eclipse/eclipse-collections

  1. public boolean accept(int codePoint)
  2.   {
  3.     return Character.isBmpCodePoint(codePoint);
  4.   }
  5. };

代码示例来源：origin: eclipse/eclipse-collections

  1. public boolean accept(int codePoint)
  2.   {
  3.     return Character.isBmpCodePoint(codePoint);
  4.   }
  5. };

代码示例来源：origin: com.globalmentor/globalmentor-core

  1. /**
  2.  * Determines whether the code point is in the Basic Multilingual Plane (BMP) and can thus be represented by a single <code>char</code>.
  3.  * @return <code>true</code> if the code point is in the BMP.
  4.  * @see #isBmpCodePoint()
  5.  */
  6. public boolean isBmpCodePoint() {
  7.   return Character.isBmpCodePoint(codePoint);
  8. }

代码示例来源：origin: com.goldmansachs/gs-collections

  1. public boolean accept(int codePoint)
  2.   {
  3.     return Character.isBmpCodePoint(codePoint);
  4.   }
  5. };

代码示例来源：origin: org.eclipse.collections/eclipse-collections

  1. public boolean accept(int codePoint)
  2.   {
  3.     return Character.isBmpCodePoint(codePoint);
  4.   }
  5. };

代码示例来源：origin: anba/es6draft

  1. @Override
  2. public int codeToMbcLength(int code) {
  3.   if (Character.isBmpCodePoint(code)) {
  4.     return 2;
  5.   }
  6.   return 4;
  7. }

代码示例来源：origin: stackoverflow.com

  1. IntStream converted = utf8mb4string.codePoints().map(cp -> Character.isBmpCodePoint(cp) ? cp : '\uFFFD');
  2. String str = converted.collect(StringBuilder::new, (buf, ch) -> buf.append((char) ch), StringBuilder::append).toString();

代码示例来源：origin: stackoverflow.com

  1. private boolean isValidUTF8(final String string) {
  2.  for (int i = 0; i < string.length(); i++) {
  3.    final char c = string.charAt(i);
  4.    if (!Character.isBmpCodePoint(c)) {
  5.      return false;
  6.    }
  7.  }
  8.  return true;
  9. }

代码示例来源：origin: anba/es6draft

  1. /**
  2.  * Returns the string representation of a single code point.
  3.  * 
  4.  * @param codePoint
  5.  *            the code point
  6.  * @return the result string
  7.  */
  8. public static String fromCodePoint(int codePoint) {
  9.   if (Character.isBmpCodePoint(codePoint)) {
  10.     return String.valueOf((char) codePoint);
  11.   }
  12.   return String.valueOf(Character.toChars(codePoint));
  13. }

代码示例来源：origin: anba/es6draft

  1. private void appendCodeUnit(int codeUnit) {
  2.   assert Character.isBmpCodePoint(codeUnit);
  3.   out.append("\\u").append(toHexDigit(codeUnit >> 12)).append(toHexDigit(codeUnit >> 8))
  4.       .append(toHexDigit(codeUnit >> 4)).append(toHexDigit(codeUnit >> 0));
  5. }

代码示例来源：origin: ESAPI/esapi-java-legacy

  1. /**
  2.  * WARNING!!  {@code Character} based Codecs will silently transform code points that are not 
  3.  * legal UTF code points into garbage data as they will cast them to {@code char}s.  
  4.  * </br></br>
  5.  * If you are implementing an {@code Integer} based codec, these will be silently discarded
  6.  * based on the return from {@code Character.isValidCodePoint( int )}.  This is the preferred
  7.  * behavior moving forward.  
  8.  * 
  9.  * 
  10.  * {@inheritDoc}
  11.  */
  12. @Override
  13. public String encode(char[] immune, String input) {
  14.   StringBuilder sb = new StringBuilder();
  15.   for(int offset  = 0; offset < input.length(); ){
  16.     final int point = input.codePointAt(offset);
  17.     if(Character.isBmpCodePoint(point)){
  18.       //We can then safely cast this to char and maintain legacy behavior.
  19.       sb.append(encodeCharacter(immune, new Character((char) point)));
  20.     }else{
  21.       sb.append(encodeCharacter(immune, point));    
  22.     }
  23.     offset += Character.charCount(point);
  24.   }
  25.   return sb.toString();
  26. }

代码示例来源：origin: org.eclipse.rdf4j/rdf4j-client

  1. /**
  2.    * Appends the characters from codepoint into the string builder. This is the same as Character#toChars
  3.    * but prevents the additional char array garbage for BMP codepoints.
  4.    * 
  5.    * @param dst
  6.    *        the destination in which to append the characters
  7.    * @param codePoint
  8.    *        the codepoint to be appended
  9.    */
  10.   private static void appendCodepoint(StringBuilder dst, int codePoint) {
  11.     if (Character.isBmpCodePoint(codePoint)) {
  12.       dst.append((char)codePoint);
  13.     }
  14.     else if (Character.isValidCodePoint(codePoint)) {
  15.       dst.append(Character.highSurrogate(codePoint));
  16.       dst.append(Character.lowSurrogate(codePoint));
  17.     }
  18.     else {
  19.       throw new IllegalArgumentException("Invalid codepoint " + codePoint);
  20.     }
  21.   }
  22. }

代码示例来源：origin: anba/es6draft

  1. @Override
  2. public int codeToMbc(int code, byte[] bytes, int p) {
  3.   if (Character.isBmpCodePoint(code)) {
  4.     bytes[p + 0] = (byte) (code >>> 8);
  5.     bytes[p + 1] = (byte) (code >>> 0);
  6.     return 2;
  7.   }
  8.   char high = Character.highSurrogate(code);
  9.   char low = Character.lowSurrogate(code);
  10.   bytes[p + 0] = (byte) (high >>> 8);
  11.   bytes[p + 1] = (byte) (high >>> 0);
  12.   bytes[p + 2] = (byte) (low >>> 8);
  13.   bytes[p + 3] = (byte) (low >>> 0);
  14.   return 4;
  15. }

代码示例来源：origin: eclipse/rdf4j

  1. /**
  2.    * Appends the characters from codepoint into the string builder. This is the same as Character#toChars
  3.    * but prevents the additional char array garbage for BMP codepoints.
  4.    * 
  5.    * @param dst
  6.    *        the destination in which to append the characters
  7.    * @param codePoint
  8.    *        the codepoint to be appended
  9.    */
  10.   private static void appendCodepoint(StringBuilder dst, int codePoint) {
  11.     if (Character.isBmpCodePoint(codePoint)) {
  12.       dst.append((char)codePoint);
  13.     }
  14.     else if (Character.isValidCodePoint(codePoint)) {
  15.       dst.append(Character.highSurrogate(codePoint));
  16.       dst.append(Character.lowSurrogate(codePoint));
  17.     }
  18.     else {
  19.       throw new IllegalArgumentException("Invalid codepoint " + codePoint);
  20.     }
  21.   }
  22. }

代码示例来源：origin: org.apache.sis.core/sis-utility

  1. /**
  2.  * Appends the given code point to the underlying {@link #out} stream or buffer.
  3.  *
  4.  * @param  c  the code point to append.
  5.  * @throws IOException if an error occurred while appending the code point.
  6.  */
  7. final void appendCodePoint(final int c) throws IOException {
  8.   if (Character.isBmpCodePoint(c)) {
  9.     out.append((char) c);
  10.   } else if (Character.isSupplementaryCodePoint(c)) {
  11.     out.append(Character.highSurrogate(c))
  12.       .append(Character. lowSurrogate(c));
  13.   } else {
  14.     throw new CharConversionException();
  15.   }
  16. }

代码示例来源：origin: apache/sis

  1. /**
  2.  * Appends the given code point to the underlying {@link #out} stream or buffer.
  3.  *
  4.  * @param  c  the code point to append.
  5.  * @throws IOException if an error occurred while appending the code point.
  6.  */
  7. final void appendCodePoint(final int c) throws IOException {
  8.   if (Character.isBmpCodePoint(c)) {
  9.     out.append((char) c);
  10.   } else if (Character.isSupplementaryCodePoint(c)) {
  11.     out.append(Character.highSurrogate(c))
  12.       .append(Character. lowSurrogate(c));
  13.   } else {
  14.     throw new CharConversionException();
  15.   }
  16. }

代码示例来源：origin: anba/es6draft

  1. /**
  2.  * Appends the code point to the buffer.
  3.  * 
  4.  * @param c
  5.  *            the code point
  6.  */
  7. public void appendCodePoint(int c) {
  8.   if (Character.isBmpCodePoint(c)) {
  9.     append(c);
  10.   } else {
  11.     append(Character.highSurrogate(c));
  12.     append(Character.lowSurrogate(c));
  13.   }
  14. }

代码示例来源：origin: org.opencypher/grammar

  1. /**
  2.  * Appends the string representation of the {@code codePoint} argument to this sequence.
  3.  *
  4.  * @param codePoint a Unicode code point
  5.  * @return this {@code Output} instance to allow invocation chaining.
  6.  * @throws IllegalArgumentException if the specified {@code codePoint} isn't a valid Unicode code point.
  7.  * @see java.lang.StringBuilder#appendCodePoint(int) the corresponding method of <code>StringBuilder</code>
  8.  */
  9. default Output appendCodePoint( int codePoint )
  10. {
  11.   if ( isBmpCodePoint( codePoint ) )
  12.   {
  13.     append( (char) codePoint );
  14.   }
  15.   else if ( isValidCodePoint( codePoint ) )
  16.   {
  17.     append( highSurrogate( codePoint ) );
  18.     append( lowSurrogate( codePoint ) );
  19.   }
  20.   else
  21.   {
  22.     throw new IllegalArgumentException();
  23.   }
  24.   return this;
  25. }

代码示例来源：origin: org.jruby/jruby-complete

  1. private char multibyteCharAt(Encoding enc, int beg, int length) {
  2.   int p;
  3.   int s = value.getBegin();
  4.   int end = s + length;
  5.   byte[] bytes = value.getUnsafeBytes();
  6.   if (beg > 0 && beg > StringSupport.strLengthFromRubyString(this, enc)) {
  7.     throw new StringIndexOutOfBoundsException(beg);
  8.   }
  9.   if (isCodeRangeValid() && enc.isUTF8()) {
  10.     p = StringSupport.utf8Nth(bytes, s, end, beg);
  11.   } else if (enc.isFixedWidth()) {
  12.     int w = enc.maxLength();
  13.     p = s + beg * w;
  14.     if (p > end || w > end - p) {
  15.       throw new StringIndexOutOfBoundsException(beg);
  16.     }
  17.   } else if ((p = StringSupport.nth(enc, bytes, s, end, beg)) == end) {
  18.     throw new StringIndexOutOfBoundsException(beg);
  19.   }
  20.   int codepoint = enc.mbcToCode(bytes, p, end);
  21.   if (Character.isBmpCodePoint(codepoint)) {
  22.     return (char) codepoint;
  23.   }
  24.   // we can only return high surrogate here
  25.   return Character.highSurrogate(codepoint);
  26. }

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