In addition to prompting for input from the User, the Application Programmer
may use a set of string decoding Subprograms to pickup individual words
from a line of text or text string and to convert words into
Integer, Hexadecimal or Real numbers etc. These may be used to deal with the
situation where the response from a User may either be a word or a number. The
Application Program should prompt for a Text String and the decoding Subprograms
may be used to determine whether it is a Number or not.
Decoding of Text Strings is discussed in detail in Chapter 4.