; KEYSTRNG
;---------------------------------------------------------------
;! gives contents of character-valued keyword parameter
;# ADVERB CATALOG
;-----------------------------------------------------------------------
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;-----------------------------------------------------------------------
;---------------------------------------------------------------
KEYSTRNG  LLLLLLLLLLLLUUUUUUUUUUUU CCCCCCCCCCCCCCCCCCCCCCCCCCCCC
----------------------------------------------------------------
KEYSTRNG
Type: Adverb    (character*16)
Use:  To specify the value of a character-valued keyword
      parameter.
Null value:   none.
Verbs:
   EGETHEAD....Returns parameter value from image header and error code.
   GETHEAD.....Gets a parameter value from the header field described by
               the FITS keyword in adverb KEYWORD.
   GETTHEAD....Returns keyword values from a table header, also column
               #, # rows  On input, can be column label for 'FIND COL',
               on output is any string-valued KEYWORD value.
   PUTHEAD.....Puts a new value in the header field described by the
               FITS keyword in adverb KEYWORD.  There is no default for
               KEYSTRNG.
   PUTTHEAD....Inserts a given value into a table keyword/value pair.
   TABGET......Returns table entry for specified row, column and
               subscript.
   TABPUT......Replaces table entry for specified row, column and
               subscript.
Tasks:
   IRING.......Integrates intensity / flux in rings / ellipses.
               KEYSTRNG is the label to use on the X axis.
   PRTAB.......Prints any table-format extension file.  KEYSTRNG is the
               string to match when deciding to print each row.
   SUFIX.......Modifies source numbers on uv data.  KEYSTRNG is the new
               source name.
   TABED.......Task to edit tables.  KEYSTRNG is the value given to a
               character-valued parameter.
   TACOP.......Task to copy tables, other extension files.  To copy a
               table, KEYSTRNG must match a character-valued KEYWORD.
   TAPLT.......Plots data from a Table extension file.  KEYSTRNG is the
               string to match when deciding to plot each row.
----------------------------------------------------------------