DEC Text Processing Utility
The DEC Text Processing Utility (or DECTPU)<ref>Guide to the DEC Text Processing Utility</ref><ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> is a dedicated programming language developed by Digital Equipment Corporation (DEC) to easily create multi-functional text editors.
TPU is part of OpenVMS. It can be used on a terminal, a console, or on a graphical system like DECwindows.
FunctionalityEdit
TPU provides text buffer management APIs in concert with window management APIs which are targeted for the VT100 line of terminals.Template:Citation needed This allowed split-screen windows with scrolling and hence multiple views of the same buffer content.Template:Citation needed There are also key mapping APIs provided, allowing a wide range of functionality for editing text. The keyboard mapping could be easily adapted by the admin or the user.Template:Citation needed
Users could write their own specific editor, to e.g. translate text or short (error) messages to multiple natural languages in a synchronised small text window. The text editor is callable, so you could have small text editors built into specific applications, e.g. a simple mail client. You might redirect output from applications into a text window, using inter-process communication. Therefore one could call web services to return their results into a text buffer.
ImplementationsEdit
- EVE (Extensible Versatile Editor), the first TPU-based editor, delivered with VAX/VMS by mid-1985.<ref>Template:Cite book</ref>
- In 1986, DEC developed a new version of EDT written in TPU
- Language-Sensitive Editor, part of VAXset (software development platform)
- A version of the vi editor was created by Gregg Wonderly at Oklahoma State University called TPUVI or VITPU.<ref>Template:Cite newsgroup</ref> VITPU is still available via the DECUS archives online.<ref>{{#invoke:citation/CS1|citation
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ReferencesEdit
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