Class FCDIterCollationIterator


  • public final class FCDIterCollationIterator
    extends IterCollationIterator
    Incrementally checks the input text for FCD and normalizes where necessary.
    • Field Detail

      • start

        private int start
      • pos

        private int pos
      • limit

        private int limit
      • s

        private java.lang.StringBuilder s
      • normalized

        private java.lang.StringBuilder normalized
    • Method Detail

      • resetToOffset

        public void resetToOffset​(int newOffset)
        Description copied from class: CollationIterator
        Resets the iterator state and sets the position to the specified offset. Subclasses must implement, and must call the parent class method, or CollationIterator.reset().
        Overrides:
        resetToOffset in class IterCollationIterator
      • nextCodePoint

        public int nextCodePoint()
        Description copied from class: CollationIterator
        Returns the next code point (with post-increment). Public for identical-level comparison and for testing.
        Overrides:
        nextCodePoint in class IterCollationIterator
      • handleNextCE32

        protected long handleNextCE32()
        Description copied from class: CollationIterator
        Returns the next code point and its local CE32 value. Returns Collation.FALLBACK_CE32 at the end of the text (c<0) or when c's CE32 value is to be looked up in the base data (fallback). The code point is used for fallbacks, context and implicit weights. It is ignored when the returned CE32 is not special (e.g., FFFD_CE32). Returns the code point in bits 63..32 (signed) and the CE32 in bits 31..0.
        Overrides:
        handleNextCE32 in class IterCollationIterator
      • handleGetTrailSurrogate

        protected char handleGetTrailSurrogate()
        Description copied from class: CollationIterator
        Called when handleNextCE32() returns a LEAD_SURROGATE_TAG for a lead surrogate code unit. Returns the trail surrogate in that case and advances past it, if a trail surrogate follows the lead surrogate. Otherwise returns any other code unit and does not advance.
        Overrides:
        handleGetTrailSurrogate in class IterCollationIterator
      • switchToForward

        private void switchToForward()
        Switches to forward checking if possible.
      • nextSegment

        private boolean nextSegment()
        Extends the FCD text segment forward or normalizes around pos.
        Returns:
        true if success
      • switchToBackward

        private void switchToBackward()
        Switches to backward checking.
      • previousSegment

        private boolean previousSegment()
        Extends the FCD text segment backward or normalizes around pos.
        Returns:
        true if success
      • normalize

        private void normalize​(java.lang.CharSequence s)