Re: LDAPprep: mapping of " " values

["Kurt D. Zeilenga" <Kurt@OpenLDAP.org>]

At 07:13 PM 11/30/2004, Steven Legg wrote:
>I don't like any solution that requires non-disjoint matching against substrings, though with spaces it can be finessed. 

How about this:
  Prepare the attribute value such that it always
  starts with a space, ends with a space, and every
  inner sequence of spaces is collapsed (or
  expanded) to two spaces.   In all cases, if the
  string is all spaces, it would collapsed to three
  spaces.

  Prepare the assertion values for ordering and
  equality in the same fashion.

  Prepare initial values such that they always
  start with as space, all inner sequences
  are collapsed to two spaces and any trailing
  spaces collapsed to a single space.  If
  the value is all spaces, it collapses to
  a single space.

  Prepare any values such that they always
  start and end with a space and all inner
  spaces collapse to two spaces.  If
  the value is all spaces, it collapses to
  a single space.

  Prepare final values such that they always
  end with as space, all inner sequences
  are collapsed to two spaces and any leading
  spaces collapsed to a single space.   If
  the value is all spaces, it collapses to
  a single space.

Kurt