Getting Started with DECTPU

2.6 Using OpenVMS EDIT/TPU Command Qualifiers

If you invoke EVE and do not specify /MODIFY, /NOMODIFY, /READ_ONLY, or /NOWRITE, EVE makes the first user buffer of the editing session modifiable. If you specify /NOMODIFY, EVE makes the first user buffer unmodifiable. Regardless of what qualifiers you use on the DCL command line, EVE makes all user buffers after the first buffer modifiable.

If you do not specify either form of the /MODIFY qualifier, EVE checks whether you have used any form of the /READ_ONLY or /WRITE qualifier. By default, a read-only buffer is unmodifiable and a write buffer is modifiable. However, if you specify /READ_ONLY and /MODIFY or /NOWRITE and /MODIFY, the buffer is modifiable. Similarly, if you specify /WRITE and /NOMODIFY or /NOREAD_ ONLY and /NOMODIFY, the buffer is unmodifiable.

2.6.10 /OUTPUT

/OUTPUT[[=input_file.type]] (default)

/NOOUTPUT

The /OUTPUT qualifier determines whether the output of your DECTPU session is written to a file. The application layered on DECTPU is responsible for processing this qualifier.

To determine whether you specified /OUTPUT on the DCL command line, use the following call in the application:

x := GET_INFO (COMMAND_LINE, "output");

The preceding call returns 1 if /OUTPUT was specified, 0 otherwise. To fetch the name of the output file specified on the command line, use the following call:

x := GET_INFO (COMMAND_LINE, "output_file");

For more information on GET_INFO, see the DEC Text Processing Utility Reference Manual.

If you do not specify any form of /OUTPUT on the DCL command line, DECTPU specifies /OUTPUT but does not supply a default file specification.

In EVE, when you use /OUTPUT, you can name the file created from the main buffer when you exit from DECTPU. For example, the following command causes DECTPU to read in a file called LETTER.RNO and to write the contents of the main buffer to the file NEWLET.RNO upon exiting from DECTPU:

$ EDIT/TPU/OUTPUT=newlet.rno letter.rno

If you use /OUTPUT= to specify an output file, EVE modifies the buffer even if you do not modify the actual text. In this case, when you exit from EVE, EVE writes the buffer to the output file you specify.

By default, the output file has the same name as the input file, and the version number is one higher than the highest existing version of the input file. You can specify a different name for the output file by using the file specification argument for the /OUTPUT qualifier.

In EVE, specifying /NOOUTPUT causes EVE to suppress creation of an output file for the first buffer of the editing session. Using /NOOUTPUT does not suppress creation of a journal file.

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Compaq AA-PWCBD-TE manual 10 /OUTPUT, Nooutput, $ EDIT/TPU/OUTPUT=newlet.rno letter.rno
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