Package org.eclipse.rdf4j.common.text

Class ASCIIUtil

  • public class ASCIIUtil
extends Object
    Utility methods for ASCII character checking.

    • Constructor Detail

      • ASCIIUtil

        public ASCIIUtil()

    • Method Detail

      • isLetterOrNumber

        public static boolean isLetterOrNumber​(int c)
        Checks whether the supplied character is a letter or number.
        Parameters:
        c - character
        Returns:
        true if the character is a letter or a number
        See Also:
        isLetter(int), isNumber(int)

      • isLetter

        public static boolean isLetter​(int c)
        Checks whether the supplied character is a letter.
        Parameters:
        c - character
        Returns:
        true if the character is in the range [a-z] or [A-Z]

      • isUpperCaseLetter

        public static boolean isUpperCaseLetter​(int c)
        Checks whether the supplied character is an upper-case letter.
        Parameters:
        c - character
        Returns:
        true if the character is in the range [A-Z]

      • isLowerCaseLetter

        public static boolean isLowerCaseLetter​(int c)
        Checks whether the supplied character is an lower-case letter.
        Parameters:
        c - character
        Returns:
        true if the character is in the range [a-z]

      • isNumber

        public static boolean isNumber​(int c)
        Checks whether the supplied character is a number.
        Parameters:
        c - character
        Returns:
        true if the character is in the range [0-9]

      • isHex

        public static boolean isHex​(int c)
        Check whether the supplied character is a Hexadecimal character.
        Parameters:
        c - character
        Returns:
        true if c is a hexadecimal character, false otherwise.