Package org.parboiled.support

Class IndexRange

  • public final class IndexRange
extends Object
    A simple immutable container for a range of indices into an underlying InputBuffer.

    • Field Detail

      • start

        public final int start
        The index of the first character in the range.

      • end

        public final int end
        The index of the character following the last character of the range.

    • Constructor Detail

      • IndexRange

        public IndexRange​(int start,
                  int end)

    • Method Detail

      • isEmpty

        public boolean isEmpty()
        Determines whether this range contains no characters.
        Returns:
        true if the end matches the start of the range.

      • length

        public int length()
        Returns:
        the number of characters covered by this range

      • overlapsWith

        public boolean overlapsWith​(IndexRange other)
        Determines whether this range overlaps with the given other one.
        Parameters:
        other - the other range
        Returns:
        true if there is at least one index that is contained in both ranges

      • isPrecededBy

        public boolean isPrecededBy​(IndexRange other)
        Determines whether this range immediated follows the given other one.
        Parameters:
        other - the other range
        Returns:
        true if this range immediated follows the given other one

      • isFollowedBy

        public boolean isFollowedBy​(IndexRange other)
        Determines whether this range is immediated followed by the given other one.
        Parameters:
        other - the other range
        Returns:
        true if this range is immediated followed by the given other one

      • touches

        public boolean touches​(IndexRange other)
        Determines whether this range immediated follows or precedes the given other one.
        Parameters:
        other - the other range
        Returns:
        true if this range immediated follows or precedes the given other one.

      • mergedWith

        public IndexRange mergedWith​(IndexRange other)
        Created a new IndexRange that spans all characters between the smallest and the highest index of the two ranges.
        Parameters:
        other - the other range
        Returns:
        a new IndexRange instance

      • hashCode

        public int hashCode()
        Overrides:
        hashCode in class Object