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EVE (text editor)

EVE (introduced as the Extensible VAX Editor, later as the Extensible Versatile Editor) is a flexible text editor that is part of the VMS operating system. EVE is implemented by using the Text Processing Utility (TPU).

The Emacs editor features an EVE emulation (as an add-on).

Editor control

EVE is invoked via: $ EDIT/TPU filename

Since the EVE editor was designed for use from a VT100 or VT220 terminal, many keyboard conventions introduced for personal computers do not work.

Key Function Definitions

Interactive Key Definitions

To assign a command or function to a key or key combination, use the following procedure:

  1. Enter the EVE command line (using the <code>-</code> key on the numeric keypad or <code>Ctrl-B</code> <code>Ctrl-U</code>)
  2. Enter the <code>Define Key</code> command—as almost everywhere in OpenVMS the text is case insensitive and it is possible to use abbreviations, so entering <code>de k</code> will do
  3. When the <code>EVE command:</code> prompt occurs, enter the name of the command
  4. When the <code>Press the key you want to define:</code> prompt occurs, press the key or key combination which is to call the given command

Key Definitions in a File

EVE upon its start interprets the <code>EVE$INIT.EVE</code> file in the user's current or home directory. When the <code>SYS$LOGIN:EVE$INIT.EVE</code> file contains

DEFINE KEY= Ctrl/F Find DEFINE KEY= F3 Find Next DEFINE KEY= F1 Help DEFINE KEY= F2 Do

the <code>Ctrl-F</code> key would call string search function, the <code>F3</code> key repeating of the last search, the <code>F1</code> key would display the list of EVE commands and the <code>F2</code> key would call the EVE command line.

Features

Automatic journaling facilitates recovering "all or most" of one's editing.

The TWO WINDOWS command allows editing more than one file at a time (split screen).

References

External links