; INEXT
;---------------------------------------------------------------
;! specifies the type of the 1st input extension file
;# ADVERB CATALOG
;-----------------------------------------------------------------------
;;  Copyright (C) 1995, 2020
;;  Associated Universities, Inc. Washington DC, USA.
;;
;;  This program is free software; you can redistribute it and/or
;;  modify it under the terms of the GNU General Public License as
;;  published by the Free Software Foundation; either version 2 of
;;  the License, or (at your option) any later version.
;;
;;  This program is distributed in the hope that it will be useful,
;;  but WITHOUT ANY WARRANTY; without even the implied warranty of
;;  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;  GNU General Public License for more details.
;;
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;;  License along with this program; if not, write to the Free
;;  Software Foundation, Inc., 675 Massachusetts Ave, Cambridge,
;;  MA 02139, USA.
;;
;;  Correspondence concerning AIPS should be addressed as follows:
;;         Internet email: aipsmail@nrao.edu.
;;         Postal address: AIPS Project Office
;;                         National Radio Astronomy Observatory
;;                         520 Edgemont Road
;;                         Charlottesville, VA 22903-2475 USA
;-----------------------------------------------------------------------
;---------------------------------------------------------------
INEXT     LLLLLLLLLLLLUUUUUUUUUUUU CCCCCCCCCCCCCCCCCCCCCCCCCCCCC
----------------------------------------------------------------
INEXT
Type: Adverb  (String * 2)
Use:  The extension file type associated with an image or data set.
Null Value: '  '
      The null value assignment varies with the task or verb and may be
      an error.

Verbs:
   EXTDEST.......Deletes one or more extension files.
   EXTLIST.......Lists detailed information about contents of extension
                 files.
   GETTHEAD......Returns keyword values from a table header, also column
                 #, # rows.
   GETVERS.......Finds maximum version number of an extension file.
   PUTTHEAD......Inserts a given value into a table keyword/value pair.
   QGETVERS......Finds maximum version number of an extension file
                 quietly.
   REVERSN.......Checks disk for presence of extension files.
   TABGET........Returns table entry for specified row, column and
                 subscript.
   TABPUT........Replaces table entry for specified row, column and
                 subscript.
Procedures:
   VLBASNPL......Plots selected contents of SN or CL files.
Tasks:
   BPEDT.........Interactive TV task to edit uv data based on BP tables.
   BPLOT.........Plots bandpass tables in 2 dimensions as function of
                 time.
   CCNTR.........Generate a contour plot file from an image with CC or MF
                 plotted.
   CLCOP.........Copy CL/SN file calibration between polarizations or IFs.
   CLINV.........Copy CL/SN file inverting the calibration.
   DTCHK.........Task to check results of a test using simulated data.
   EDITA.........Interactive TV task to edit uv data based on TY/SY/SN/CL
                 tables.
   ELFIT.........Plots/fits selected contents of SN, TY, SY, PC or CL
                 files.
   EVASN.........Evaluates statistics in SN/CL tables.
   EXTAB.........Exports AIPS table data as tab-separated text.
   HF2SV.........Convert HF tables from FRING/MBDLY to form used by
                 Calc/Solve.
   LISTR.........Prints contents of UV data sets and assoc. calibration
                 tables.
   PCPLT.........Plots pulse-cal tables in 2 dimensions as function of
                 time.
   PDPLT.........Plots selected contents of PD tables.
   PLOTC.........Plots color schems used by 3-color plot tasks.
   PRTAB.........Prints any table-format extension file.
   SDTUV.........Task to convert SD table files to UV like data.
   SL2PL.........Task to convert a Slice File to a Plot File.
   SLFIT.........Task to fit gaussians to slice data.
   SNBLP.........Plots selected contents of SN or CL files on a baseline
                 basis.
   SNEDT.........Interactive SN/CL/TY/SY table editor using the TV.
   SNFLG.........Writes flagging info based on the contents of SN files.
   SNIFS.........Plots selected contents of SN, TY, SY, PC or CL files by
                 IF.
   SNPLT.........Plots selected contents of SN, SY, TY, PC or CL files
                 versus time.
   SNREF.........Chooses best reference antenna to minimize R-L
                 differences.
   TABED.........Task to edit tables.
   TACOP.........Task to copy tables, other extension files.
   TADIF.........Prints differences between two table-format extension
                 files.
   TAFLG.........Flags data in a Table extension file.
   TAMRG.........Task to merge table rows under specified conditions.
   TAPLT.........Plots data from a Table extension file.
   TAPPE.........Task to append 2 tables and merge to output table.
   TASRT.........Task to sort extension tables.
   TBDIF.........Compare entries in two tables.
   TBOUT.........Writes an AIPS table into a text file for user editting.
   TBSUB.........Make a new table from a subset of an old table.
   TBTSK.........Paraform OOP task for tables.
   TYAPL.........Undoes and re-does nominal sensitivity application.
   TYCOP.........Copy TY or SY table calibration between IFs.
   TYSMO.........Smooths and filters a calibration TY or SY table.
   UNCAL.........Sets up tables for uncalibrating Australia Telescope
                 data.
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