7. A method as claimed in claim 6 wherein said complexity number is obtained by counting the number of each type of element code in the character code yielding a stroke count number for each said type, adjusting each said stroke count number according to the reliability of the corresponding basic stroke element to yield a weighted stroke count for each element code, and summing the weighted stroke counts, to yield a complexity number.
7. A method as claimed in claim 6 wherein said complexity number is obtained by counting the number of each type of element code in the character code yielding a stroke count number for each said type, adjusting each said stroke count number according to the reliability of the corresponding basic stroke element to yield a weighted stroke count for each element code, and summing the weighted stroke counts, to yield a complexity number. 8. A method as claimed in claim 7 wherein said length number is obtained by counting the number of code components in the incoming character code.