DEC Text Processing Utility Program Development

5.6 Using DECTPU Startup Files

Example 5–5 Source Code for Minimal Interface to DECTPU

!MINI.TPU - minimal DECTPU interface PROCEDURE tpu$init_procedure

!Create a buffer and window for messages

message_buffer := CREATE_BUFFER ("Message Buffer"); SET (NO_WRITE, message_buffer);

SET (SYSTEM, message_buffer);

SET (EOB_TEXT, message_buffer, "");

message_window := CREATE_WINDOW (21, 4, OFF); MAP (message_window, message_buffer);

! Create a buffer and window for SHOW

show_buffer := CREATE_BUFFER("Show Buffer"); SET (NO_WRITE, show_buffer);

SET (SYSTEM, show_buffer);

info_window := CREATE_WINDOW (1, 20, ON);

! Create a buffer and window for editing

main_buffer := CREATE_BUFFER ("Main Buffer"); main_window := CREATE_WINDOW (1, 20, ON); MAP (main_window, main_buffer);

!Create an area on the screen for prompts SET (PROMPT_AREA, 21, 1, NONE);

!Put the editing point in the main buffer

POSITION (main_buffer); tpu$local_init;

ENDPROCEDURE;

PROCEDURE tpu$local_init !Procedure to allow end users !to add private extensions

ENDPROCEDURE;

!Define the minimal editing keys:

DEFINE_KEY ("SPLIT_LINE", RET_KEY);

DEFINE_KEY ("ERASE_CHARACTER(-1)", DEL_KEY);

DEFINE_KEY ("EXECUTE(READ_LINE(’DECTPU Statement: ’))", TAB_KEY); DEFINE_KEY ("EXIT", Ctrl_Z_KEY);

!Create a section file and then quit

IF (get_info/system,("operating_system")=ULTRIX)

THEN save(’/usr/user/jacki/mini.tpu_section’);

ELSE save(’sys$login.mini);

ENDIF

QUIT;

! End of MINI.TPU

If you created the section file SYS$LOGIN:MINI.TPU$SECTION, you could use the procedures and definitions in that file as an interface to DECTPU. To invoke DECTPU with SYS$LOGIN:MINI.TPU$SECTION as the MINI section file, use the following command:

$ EDIT/TPU/SECTION=SYS$LOGIN:MINI your_text.fil

You can define the logical name TPU$SECTION to point to your section file. By default, DECTPU looks for a file that TPU$SECTION points to and reads that file as the default section file.

5–22DEC Text Processing Utility Program Development

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Compaq AA-PWCBD-TE Example 5-5 Source Code for Minimal Interface to Dectpu, $ EDIT/TPU/SECTION=SYS$LOGINMINI yourtext.fil
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