subtitle "uart_lib.h by L. Wyard-Scott"
;;; *********************************************************************
;;; Filename:	str_lib.h
;;; Purpose:	String library routine headers and other library equates.
;;; Revision:	0.0
;;; Date:	07 October 2003
;;; Author:	L. Wyard-Scott
;;; Copyright:	(c) 2003 L. Wyard-Scott
;;; *********************************************************************
;;; Revision History:
;;;	0.0	07 October 2003
;;;		Creation.
;;; *********************************************************************
;;; *********************************************************************
;;; Ideas for future work:
;;; *********************************************************************
	
;;; ---------------------------------------------------------------------
;;; Externally defined variables.
;;; ---------------------------------------------------------------------
;;; ---------------------------------------------------------------------
;;; Externally defined subroutines.
;;; ---------------------------------------------------------------------
	extern 	STR_Hex2ASC	; Conversion of a byte into two ASCII
				; hexadecimal digits.
	extern	STR_ASC2Hex	; Conversion two ASCII hexadecimal digits
				; into a byte value.
	extern	STR_IsHex	; Determines whether or not a single
				; ASCII code is a legitmate hexadecimal
				; digit.
	extern	STR_IsHexS	; Determines if an entire string contains
				; valid ASCII hexadecimal digits.
	extern	STR_ToUpperS	; Converts a NULL-terminated string to
				; its uppercase equivalent.
	extern	STR_ToUpper	; Converts a single character to its
				; uppercase equivalent.
	extern	STR_ToLowerS	; Converts a NULL-terminated string to
				; its lowercase equivalent.
	extern	STR_ToLower	; Converts a single character to its
				; lowercase equivalent.

	extern	STR_Length	; Returns the length of a NULL-terminated
				; string in RAM.