CATALOG/VALIDATE
================

 This function validates the active catalogue. After execution
 a text display appears which reports on the status of the catalogue.
 This validation report can also be printed on a connected printer.


  * Data integrity of catalogue files
    -------------------------------

    Usually catalogue files cannot contain less entries than the catalogues
    own entries. But if under certain circumstances like hard disk
    errors etc. the .index or .image files contain less data records
    than the catalogue contains entries, the validate function tries to
    repair the catalogue files.
    This operation may cause some entries to be lost.
    The following validation report will contain information about
    the status of the catalogue files.

  * too much memory used within the data path
    ------------------------------------------

    A check is made to see whether catalogue files use more memory than
    they actually need according to the number of catalogue entries.
    See also OPTIMIZE.

  * duplicate entries
    -----------------

    Should graphics have been catalogued twice (or more often)
    these will be reported after validation. By using ENTRIES/SEARCH
    the duplicate entries can be searched for and then removed from
    ENTRIES/SEARCH and ENTRIES/FOUND...)

  * changed graphics
    ----------------

    This functions checks whether graphics have been modified after
    cataloguing. Should such changes be detected the validation
    report will show the corresponding entries. UPDATE allows the user to
    automatically catalogue these graphics again.

  * availability of all the catalogued graphics/animation's
    -------------------------------------------------------

    A check is made to see whether
    all catalogued graphics are still available in the
    data paths. Deleted graphics will be listed in the validation
    report. UPDATE allows removing of these entries from the catalogue.


