Package com.scriptbasic.utility.functions

Class UtilityFunctions

  • public class UtilityFunctions
extends java.lang.Object
    Static methods in this class are registered in the interpreter when the interpreter starts. The interpreter calls the static method MethodRegisterUtility.registerFunctions(Class, Interpreter) and that function registers the methods in this class with their own name so that BASIC programs can call the functions like BASIC built in functions.
    Author:
    Peter Verhas date July 15, 2012

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static byte[] byteBuffer​(int len)
      Create a new byte buffer of length len.
      static java.lang.Long getByte​(byte[] buffer, java.lang.Long i)  
      static byte[] getStringBytes​(java.lang.String s)  
      static java.lang.Boolean isDefined​(java.lang.Object s)  
      static java.lang.Boolean isUndef​(java.lang.Object s)  
      static java.lang.Long length​(java.lang.Object arg)  
      static void logDebug​(java.lang.String message)  
      static void logError​(java.lang.String message)  
      static void logInfo​(java.lang.String message)  
      static java.lang.Object newMagicBean()  
      static void setByte​(byte[] buffer, java.lang.Long i, java.lang.Long v)  
      static java.lang.String stringifyBuffer​(byte[] buffer)  
      static java.lang.Object undef()
      This function returns the undef value.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Method Detail

      • newMagicBean

        public static java.lang.Object newMagicBean()

      • logError

        public static void logError​(java.lang.String message)

      • logInfo

        public static void logInfo​(java.lang.String message)

      • logDebug

        public static void logDebug​(java.lang.String message)

      • undef

        public static java.lang.Object undef()
        This function returns the undef value.
        Returns:
        the undef value

      • isUndef

        public static java.lang.Boolean isUndef​(java.lang.Object s)
        Parameters:
        s - is some value or object
        Returns:
        true if the parameter is undefined

      • isDefined

        public static java.lang.Boolean isDefined​(java.lang.Object s)
        Parameters:
        s - is some value or object
        Returns:
        true if the parameter is defined (not isUndef).

      • byteBuffer

        public static byte[] byteBuffer​(int len)
        Create a new byte buffer of length len.
        Parameters:
        len - the length of the buffer allocated.
        Returns:
        the new buffer

      • getByte

        public static java.lang.Long getByte​(byte[] buffer,
                                     java.lang.Long i)

      • getStringBytes

        public static byte[] getStringBytes​(java.lang.String s)

      • stringifyBuffer

        public static java.lang.String stringifyBuffer​(byte[] buffer)

      • length

        public static java.lang.Long length​(java.lang.Object arg)