The following are brief descriptions of the utility library functions
which pertain to tags and tag lusts.


                    Table 37-6: Utility Tag Functions
  ______________________________________________________________________
 |                                                                      |
 |           Function                 Description                       |
 |======================================================================|
 |     allocatetagitems()  allocate a tagitem array (or chain).         |
 |         freetagitems()  frees allocated tagitem lists.               |
 |----------------------------------------------------------------------|
 |        clonetagitems()  copies a tagitem list.                       |
 | refreshtagitemclones()  rejuvenates a clone from the original.       |
 |----------------------------------------------------------------------|
 |          findtagitem()  scans tagitem list for a tag.                |
 |           gettagdata()  obtain data corresponding to tag.            |
 |          nexttagitem()  iterate tagitem lists.                       |
 |           taginarray()  check if a tag value appears in a tag array. |
 |----------------------------------------------------------------------|
 |     filtertagchanges()  eliminate tagitems which specify no change.  |
 |       filtertagitems()  remove selected items from a tagitem list.   |
 |              maptags()  convert ti_tag values in a list via map      |
 |----------------------------------------------------------------------|
 |         packbooltags()  builds a "flag" word from a tagitem list.    |
 |______________________________________________________________________|