A

Sample DECTPU Procedures

The following DECTPU procedures are samples of how to use DECTPU to perform certain tasks. These procedures show one way of using DECTPU; there may be other, more efficient ways to perform the same task. Make changes to these procedures to accommodate your style of editing.

For these procedures to compile and execute correctly, you must make sure that there are no conflicts between these sample procedures and your interface. This appendix contains the following types of procedures:

1.Line-mode editor

2.Translation of control characters

3.Restoring terminal width before exiting from DECTPU

4.DCL command procedure to run DECTPU from a subprocess

A.1 Line-Mode Editor

Example A–1 shows a portion of an editing interface that uses line mode rather than screen displays for editing tasks. You can use this mode of editing for batch jobs or for running DECTPU on terminals that do not support screen-oriented editing.

Example A–1 Line-Mode Editing

!Portion of a line mode editor for DECTPU

input_file := GET_INFO (COMMAND_LINE, "file_name"); ! Set up main

main_buffer := CREATE_BUFFER ("MAIN", input_file); ! buffer from input

POSITION (BEGINNING_OF (main_buffer));

! file

!

 

 

LOOP

! Continuously loop until QUIT

cmd := READ_LINE ("*");

 

IF cmd = ""

 

THEN

cmd_char := "N";

 

ELSE

 

cmd_char := SUBSTR (cmd, 1, 1);

CHANGE_CASE (cmd_char, UPPER);

 

ENDIF;

 

CASE cmd_char FROM "I" TO "T"

! Only accepting I,L,N,Q,T

(continued on next page)

Sample DECTPU Procedures A–1

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Compaq AA-PWCBD-TE manual Line-Mode Editor, Example A-1 Line-Mode Editing
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