TFF$TFUHELP.HLB  —  Commands  SHOW
   Displays information about fallback tables and libraries.

       Format:  SHOW option

1  –  DEFAULT_TABLE 

   Displays the default fallback tables for your system.

       Format:  SHOW DEFAULT_TABLE

1.1  –  Example 

    1.  TFU> SHOW DEFAULT_TABLE

       System default TFF tables are:
          CANADIAN                     (fallback)
          LATIN_1                      (compose sequence validation)
        TFU>

   The  command  in  this  example  displays  the  default fallback and
   compose  tables  as  they  were  established  before the command was
   entered. In this example, the table CANADIAN is the default fallback
   table,  and  the  table  LATIN_1  is  the  default  compose sequence
   validation table.

2  –  LIBRARY 

   Provides information about the current work library.

       Format: SHOW LIBRARY

2.1  –  Example 

   1. TFU> SHOW LIBRARY

   %TFF-I-READIS, Current input library is
    SYS$COMMON:[SYSEXE]TFF$MASTER.DAT;1
      TFU>

   The  command  in  this example displays the current work library. In
   this case, the default library TFF$MASTER.DAT is listed.

3  –  STATISTICS 

   Displays memory and other statistical information related to TFF.

       Format:  SHOW STATISTICS

3.1  –  Example 

   1. TFU>  SHOW STATISTICS

    TFF system statistics:
      Memory (bytes) -
        Fixed memory:
          FBDRIVER                                    5608
        Loaded tables:
          Compose tables (0)                             0
          Fallback tables (2)                         2288
        Memory allocated by fallback terminals (0):
          FBKs                                           0
          Replaced vectors                               0
        Total memory used (bytes):                    7896
      Misc -
        Total tables loaded since boot: 2
    System default TFF tables are:
        CANADIAN                  (fallback)
        LATIN_1                   (compose sequence validation)

   The command in this example displays information about TFF use. From
   this  display  you can see that two fallback tables have been loaded
   (in  addition to the default table), no new compose tables have been
   loaded,  and  no  fallback  terminals have memory allocated to them.
   Other information is also displayed.

4  –  TABLES 

   Displays information about all loaded TFF conversion tables.

       Format:  SHOW TABLES

4.1  –  Example 

      TFU> SHOW TABLES

     The following TFF tables are currently loaded
     Name                            Type Base Crefc Trefc
     ----                            ---- ---- ----- -----
     ASCII                           Fbk  MCS  *   0 0
     LATIN_1                         Cmp  MCS  *   0 0
     HEBREW_VT100                    Fbk  Hebr     0 0
     CANADIAN                        Fbk  MCS      0 0
     %TFF-W-NOMORETAB, No more tables in wildcard scan
      TFU>

   This  example  shows  how to display a line of information about the
   table ASCII, loaded into nonpaged dynamic memory pool.

5  –  TERMINAL 

   TERMINAL/FALLBACK

   Displays  TFF  statistics  about  a specific terminal. The /FALLBACK
   qualifier  is  required,  but  you  can place it before or after the
   terminal-name parameter.

       Format:  SHOW TERMINAL /FALLBACK [terminal-name]

5.1  –  Parameter 

   terminal-name

   Indicates  the  target  terminal for the show operation. If excluded
   your own terminal is used. Note that you can only use TFF from local
   terminals;  you  cannot  use  terminal fallback on a remote terminal
   (RTAx),  the  fallback  terminal  device  (FBA0),  a  Packet  Switch
   Interface (PSI) terminal (NVA0), a disconnected virtual terminal, or
   a terminal set for dynamic switching (DYNSWITCH) with DECnet.

5.2  –  Qualifiers

5.2.1    /ESCAPE_STATE 

  /ESCAPE_STATE

   Displays  information  about escape sequence parsing, and triggering
   Read  Only  Menories  (ROMs).  Use  this  information  to debug your
   application.

5.2.2    /FLAGS 

  /FLAGS

   Displays  which  TFF terminal flags (options) can be set by the user
   and displays any internal TFF flags.

5.2.3    /FULL 

  /FULL

   Displays  full  information  about the terminal. You cannot use this
   qualifier with /ESCAPE_STATE or /STATISTICS.

5.2.4    /STATISTICS 

  /STATISTICS

   Displays statistics about the specified terminal.

5.2.5    /TABLES 

  /TABLES

   Displays  THE  names  of  tables assigned to the specified terminal,
   including auto-compose keys for the fallback table.

5.3  –  Example 

   1. TFU> SHOW TERMINAL TXB0: /FALLBACK/FULL

   TFF status for physical terminal _TXB0:

    Active tables:
      ASCII           (FALLBACK)
      LATIN_1         (compose sequence validation)

    Autocompose-keys (Parenthesized values are character's decimal value):
      None

    Settable flags:
      Nosuspend, Noaccept_8bit, Soft_compose, Signal, NoGR_terminal
    Internal state flags:
      None

    Rom(s) that will trigger TFF I/O conversion:
      ASCII
    Escape sequence parsing states:
      Input_state: Off (0), Output_state: Off (0)
      Terminal graphic registers for the next character (setup = VT00):
         G0 = ASCII,   G1 = ASCII
      Output mapping:
        GL = G0 (maps 7-bit; 8th bit is truncated)
    Output formatter expansion:
      Received:  4579  Transmitted: 4579 Expansion rate: +0.0%

    Replaced vector sizes (bytes):
      Port vector: 99, Class vector: 139)
       TFU>

   This  example shows how to produce a full display of TFF information
   for terminal TXB0.
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