INPUTTEXT SEXP,VAR,IEXP1,IEXP2

 Function
  Prompt (SEXP) the user in a specified color (IEXP1) for a string of text
  of specified length (IEXP2) and store it in a specified variable (VAR).

 Syntax
  INPUTTEXT prompt,var,color,len

   prompt  - A string expression with the prompt to display to the user.
   var     - The variable in which to store the user's input.
   color   - An integer expression with the color to display the prompt in.
   len     - An integer expression with maximum length of text to input.

 Remarks
  This statement will accept any string of input from the user, up to the
  length defined.  In addition to displaying the prompt, it will display
  parenthesis around the input field if the user is in ANSI mode.  Because
  of this, you should generally limit your prompts to (80-len-4) characters
  or less.

 Examples
  BOOLEAN b
  DATE    d
  INTEGER i
  MONEY   m
  STRING  s
  TIME    t
  INPUTTEXT "Enter BOOLEAN",b,@X0E,1
  INPUTTEXT "Enter DATE",d,@X0F,8
  INPUTTEXT "Enter INTEGER",i,@X07,20
  INPUTTEXT "Enter MONEY",m,@X08,9
  INPUTTEXT "Enter STRING",s,@X09,63
  INPUTTEXT "Enter TIME",t,@X0A,5
  PRINTLN b," ",d," ",i
  PRINTLN m," ",s," ",t