35  * concept of RUNS_ONLY which is a double operation.
  36  * It could be advantageous to divide this into 3 concepts:
  37  * a) Operation: direct / inverse / RUNS_ONLY
  38  * b) Direct algorithm: default / NUMBERS_SPECIAL / GROUP_NUMBERS_WITH_L
  39  * c) Inverse algorithm: default / INVERSE_LIKE_DIRECT / NUMBERS_SPECIAL
  40  * This would allow combinations not possible today like RUNS_ONLY with
  41  * NUMBERS_SPECIAL.
  42  * Also allow to set INSERT_MARKS for the direct step of RUNS_ONLY and
  43  * REMOVE_CONTROLS for the inverse step.
  44  * Not all combinations would be supported, and probably not all do make sense.
  45  * This would need to document which ones are supported and what are the
  46  * fallbacks for unsupported combinations.
  47  */
  48 
  49 package sun.text.bidi;
  50 
  51 import java.lang.reflect.Array;
  52 import java.text.AttributedCharacterIterator;
  53 import java.text.Bidi;
  54 import java.util.Arrays;
  55 import jdk.internal.misc.JavaAWTFontAccess;
  56 import jdk.internal.misc.SharedSecrets;
  57 import sun.text.normalizer.UBiDiProps;
  58 import sun.text.normalizer.UCharacter;
  59 import sun.text.normalizer.UTF16;
  60 
  61 /**
  62  *
  63  * <h2>Bidi algorithm for ICU</h2>
  64  *
  65  * This is an implementation of the Unicode Bidirectional Algorithm. The
  66  * algorithm is defined in the <a
  67  * href="http://www.unicode.org/unicode/reports/tr9/">Unicode Standard Annex #9</a>.
  68  * <p>
  69  *
  70  * Note: Libraries that perform a bidirectional algorithm and reorder strings
  71  * accordingly are sometimes called "Storage Layout Engines". ICU's Bidi and
  72  * shaping (ArabicShaping) classes can be used at the core of such "Storage
  73  * Layout Engines".
  74  *
  75  * <h3>General remarks about the API:</h3>
  76  *

  35  * concept of RUNS_ONLY which is a double operation.
  36  * It could be advantageous to divide this into 3 concepts:
  37  * a) Operation: direct / inverse / RUNS_ONLY
  38  * b) Direct algorithm: default / NUMBERS_SPECIAL / GROUP_NUMBERS_WITH_L
  39  * c) Inverse algorithm: default / INVERSE_LIKE_DIRECT / NUMBERS_SPECIAL
  40  * This would allow combinations not possible today like RUNS_ONLY with
  41  * NUMBERS_SPECIAL.
  42  * Also allow to set INSERT_MARKS for the direct step of RUNS_ONLY and
  43  * REMOVE_CONTROLS for the inverse step.
  44  * Not all combinations would be supported, and probably not all do make sense.
  45  * This would need to document which ones are supported and what are the
  46  * fallbacks for unsupported combinations.
  47  */
  48 
  49 package sun.text.bidi;
  50 
  51 import java.lang.reflect.Array;
  52 import java.text.AttributedCharacterIterator;
  53 import java.text.Bidi;
  54 import java.util.Arrays;
  55 import jdk.internal.access.JavaAWTFontAccess;
  56 import jdk.internal.access.SharedSecrets;
  57 import sun.text.normalizer.UBiDiProps;
  58 import sun.text.normalizer.UCharacter;
  59 import sun.text.normalizer.UTF16;
  60 
  61 /**
  62  *
  63  * <h2>Bidi algorithm for ICU</h2>
  64  *
  65  * This is an implementation of the Unicode Bidirectional Algorithm. The
  66  * algorithm is defined in the <a
  67  * href="http://www.unicode.org/unicode/reports/tr9/">Unicode Standard Annex #9</a>.
  68  * <p>
  69  *
  70  * Note: Libraries that perform a bidirectional algorithm and reorder strings
  71  * accordingly are sometimes called "Storage Layout Engines". ICU's Bidi and
  72  * shaping (ArabicShaping) classes can be used at the core of such "Storage
  73  * Layout Engines".
  74  *
  75  * <h3>General remarks about the API:</h3>
  76  *