Overview of the DEC Text Processing Utility

1.1Description of DECTPU

•Free or bound cursor motion

•Learn sequences

•Pattern matching

•Key definition

•Procedural language

•Callable interface

1.1.2 DECTPU and User Applications

DECTPU is a language that you can use as a base on which to layer text processing applications. When you choose an editor or other application to layer on DECTPU, that becomes the interface between you and DECTPU. You can also create your own interface to access DECTPU.

Figure 1–1 shows the relationship of DECTPU with EVE as its user interface.

Figure 1–1 DECTPU as a Base for EVE

EVE

Editor

D E C T P U

ZK−6545−GE

1.1.3 DECTPU Environments

You can use DECTPU on the OpenVMS VAX and OpenVMS Alpha operating systems.

You can display text in two environments:

•Character-cell terminals

•Bit-mapped workstations running the DECwindows software

1.2Description of DECwindows DECTPU

DECTPU supports the Compaq DECwindows Motif for OpenVMS user interface. The variant of DECTPU that supports window-oriented user interfaces is known as DECwindows DECTPU. The windows referred to as DECwindows are not the same as DECTPU windows. For more information about the difference between DECwindows and DECTPU windows, see Chapter 5.

Because DECTPU is a language, not an application, DECTPU does not have a window-oriented interface. However, DECTPU does provide built-in procedures to interact with the DECwindows Motif environment. (For information on invoking DECTPU on systems running DECwindows Motif, see Chapter 2.)

1–2Overview of the DEC Text Processing Utility

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Compaq AA-PWCBD-TE manual Description of DECwindows Dectpu, Dectpu and User Applications, Dectpu Environments
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