% @(#)inquirkeyw.mlq	17.1.1.1 (ESO-IPG) 01/25/02 17:43:41
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SECTION./KEYW
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INQUIRE/KEYWORD						05-MAY-1992  KB
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INQUIRE/KEYWORD key [prompt_string] [flush_opt]
	get terminal input in a MIDAS procedure
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Purpose:
          Get terminal input in a MIDAS procedure.
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Syntax: 
          INQUIRE/KEYWORD key [prompt_string] [flush_opt]
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          key = complete keyword specification;
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              either name/type/first_elem/noval, e.g. INPUTI/I/1/2
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              or only keyword name, e.g. INPUTI, if the keyword exists already;
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              as many as 'noval' data values will be written into the keyword
              'name' of given type, beginning at the first element (this
              is 1 if just keyword name is given).
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          prompt_string = optional prompt string
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          flush_opt = optional flag: if set to `FLUSH' the input buffer is
              flushed, before prompting for the input, i.e. no type-ahead is
              possible
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See also:
          WRITE/KEYWORD
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Note:  
          If the prompt string contains blanks, it must be enclosed in 
          quotation marks.
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          The procedure does not continue until the input from the terminal
          has been entered (i.e. there is no timeout).
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          If you do not want to change the contents of the keyword,
          just hit RETURN. The keyword AUX_MODE(7) will contain the number
          of values entered.
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Examples:
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          INQUIRE/KEY IN_A "Enter name of input image:"
          The procedure waits until user enters input and hits RETURN.
          Keyword in_a will contain that input.
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          INQUIRE/KEY petrita/c/6/5 "Give me a name:" flush
          Will change the contents of petrita(6:10) with the user input; the
          input buffer is emptied before displaying the prompt string.
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          INQUIRE/KEY inputr "Enter data values: "
          Assuming the user enters the following input terminated by RETURN:
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          16,2.3,-7.8
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          then the first 3 elements of keyword inputr are set to 16.0,2.3,-7.8;
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          AUX_MODE(7) will be set to 3.
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