Package org.apache.fop.complexscripts.util

Class UTF32

java.lang.Object
org.apache.fop.complexscripts.util.UTF32
public final class UTF32 extends Object

UTF32 related utilities.

This work was originally authored by Glenn Adams (gadams@apache.org).

  • Method Details

    • toUTF32

      public static Integer[] toUTF32(String s, int substitution, boolean errorOnSubstitution) throws IllegalArgumentException
      Convert Java string (UTF-16) to a Unicode scalar array (UTF-32). Note that if there are any non-BMP encoded characters present in the input, then the number of entries in the output array will be less than the number of elements in the input string. Any
      Parameters:
      s - input string
      substitution - value to substitute for ill-formed surrogate
      errorOnSubstitution - throw runtime exception (IllegalArgumentException) in case this argument is true and a substitution would be attempted
      Returns:
      output scalar array
      Throws:
      IllegalArgumentException - if substitution required and errorOnSubstitution is not false

    • fromUTF32

      public static String fromUTF32(Integer[] sa) throws IllegalArgumentException
      Convert a Unicode scalar array (UTF-32) a Java string (UTF-16).
      Parameters:
      sa - input scalar array
      Returns:
      output (UTF-16) string
      Throws:
      IllegalArgumentException - if an input scalar value is illegal, e.g., a surrogate or out of range