DEC Text Processing Utility

DEC Text Processing Utility (or DECTPU)^[1][2] was a language developed by Digital Equipment Corporation (DEC) for developing text editors.

In 1986, DEC developed a new version of EDT written in TPU, having released EVE (Extensible Versatile Editor), also a TPU-based editor, by mid-1985.^[3]

TPU is distributed with OpenVMS. It is designed to be used on a terminal or console, so that it is not necessary to have DECwindows installed to use it.

Among other things, the Language-Sensitive Editor and EVE are implemented using DECTPU.

TPU provides text buffer management APIs in concert with window management APIs which were targeted for the VT-XXX line of terminals.^{[citation needed]} This allowed split-screen windows with scrolling and hence multiple views of the same buffer content.^{[citation needed]} There were also key mapping APIs provided, allowing a wide range of functionality for editing text.^{[citation needed]} A version of the vi editor was created by at Oklahoma State University called TPUVI or .^{[citation needed]} VITPU is still available via the DECUS archives online.^{[citation needed]}

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