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MGH_STR_ISWHITE

MGH_STR_ISWHITE
  ROUTINE NAME:
  MGH_STR_ISWHITE

Purpose


  Determine whether a string contains only "white" characters (ASCII
  < 32).

Category


  Strings.

Calling Sequence


  result = MGH_STR_ISWHITE(str)

Arguments


  str (input, scalar or array string)
    The string to be tested.

Return Value


  The function returns a byte scalar or array with the same
  shape as the input. The value is 1B if the string contains only
  "white" characters, otherwise 0B.

Procedure


  Convert to a byte array and search for elements > 32B.
###########################################################################
  This software is provided subject to the following conditions:
  1. NIWA makes no representations or warranties regarding the
    accuracy of the software, the use to which the software may
    be put or the results to be obtained from the use of the
    software. Accordingly NIWA accepts no liability for any loss
    or damage (whether direct of indirect) incurred by any person
    through the use of or reliance on the software.
  2. NIWA is to be acknowledged as the original author of the
    software where the software is used or presented in any form.
###########################################################################

Modification History


  Mark Hadfield, Mar 1994:
    Written as STR_ISWHITE.
  Mark Hadfield, Oct 1999:
    Renamed MGH_STR_ISWHITE.



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