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* 22-Mar-84 C.W.Holeman sdsu_ask_fn_string.for
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*------------------------------------------------------------------------------
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integer function sdsu_ask_fn_string (prompt_string,
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. default_allowed, string, length_of_string)
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*------------------------------------------------------------------------------
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character*(*) prompt_string !in: string to prompt user for input with
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integer minimum_len !in: minimum length of valid input
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integer maximum_len !in: maximum length of valid input
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character*(*) default_allowed !in:
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character*(*) string !in: default string if allowed
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* out: user's validated answer
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integer length_of_string !in: length of default string
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* out: length of returned string
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integer sdsu_ask_string
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*------------------------------------------------------------------------------
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sdsu_ask_fn_string = sdsu_ask_string (prompt_string,
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. default_allowed, string, length_of_string)